Mercurial > repos > blastem

annotate gdb_remote.c @ 1963:495569c1dc61

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add support for printing a byte from memory in native debugger. Add stubs for GDB commands qThreadExtraInfo and qP
author Eric Fry <yuv422@users.noreply.github.com>
date Tue, 28 Apr 2020 22:03:04 +1000
parents 5a76a7373823
children 3a46ff899fa6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
467
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 456
diff changeset
1 /*
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 456
diff changeset
2 Copyright 2013 Michael Pavone
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
3 This file is part of BlastEm.
467
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 456
diff changeset
4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 456
diff changeset
5 */
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
6 #ifdef _WIN32
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
7 #define WINVER 0x501
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
8 #include <winsock2.h>
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
9 #include <ws2tcpip.h>
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
10
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
11 int gdb_sock;
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
12 #define GDB_IN_FD gdb_sock
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
13 #define GDB_OUT_FD gdb_sock
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
14 #define GDB_READ(fd, buf, bufsize) recv(fd, buf, bufsize, 0)
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
15 #define GDB_WRITE(fd, buf, bufsize) send(fd, buf, bufsize, 0)
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
16 #else
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
17 #define GDB_IN_FD STDIN_FILENO
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
18 #define GDB_OUT_FD STDOUT_FILENO
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
19 #define GDB_READ read
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
20 #define GDB_WRITE write
1949
5a76a7373823 Get WIP net play code compiling on Windows and cleanup some unistd.h includes
Michael Pavone <pavone@retrodev.com>
parents: 1945
diff changeset
21 #include <unistd.h>
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
22 #endif
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
23
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
24 #include "gdb_remote.h"
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
25 #include "68kinst.h"
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
26 #include "debug.h"
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 757
diff changeset
27 #include "util.h"
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
28 #include <fcntl.h>
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
29 #include <stddef.h>
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
30 #include <stdlib.h>
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
31 #include <stdio.h>
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
32 #include <string.h>
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
33
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
34
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
35
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
36 #define INITIAL_BUFFER_SIZE (16*1024)
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
37
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
38 #ifdef DO_DEBUG_PRINT
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
39 #define dfprintf fprintf
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
40 #else
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
41 #define dfprintf
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
42 #endif
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
43
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
44 char * buf = NULL;
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
45 char * curbuf = NULL;
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
46 char * end = NULL;
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
47 size_t bufsize;
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
48 int cont = 0;
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
49 int expect_break_response=0;
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
50 uint32_t resume_pc;
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
51
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
52
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
53 static uint16_t branch_t;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
54 static uint16_t branch_f;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
55
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
56 static bp_def * breakpoints = NULL;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
57 static uint32_t bp_index = 0;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
58
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
59
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
60 void hex_32(uint32_t num, char * out)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
61 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
62 for (int32_t shift = 28; shift >= 0; shift -= 4)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
63 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
64 uint8_t nibble = num >> shift & 0xF;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
65 *(out++) = nibble > 9 ? nibble - 0xA + 'A' : nibble + '0';
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
66 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
67 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
68
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
69 void hex_16(uint16_t num, char * out)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
70 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
71 for (int16_t shift = 14; shift >= 0; shift -= 4)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
72 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
73 uint8_t nibble = num >> shift & 0xF;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
74 *(out++) = nibble > 9 ? nibble - 0xA + 'A' : nibble + '0';
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
75 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
76 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
77
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
78 void hex_8(uint8_t num, char * out)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
79 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
80 uint8_t nibble = num >> 4;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
81 *(out++) = nibble > 9 ? nibble - 0xA + 'A' : nibble + '0';
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
82 nibble = num & 0xF;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
83 *out = nibble > 9 ? nibble - 0xA + 'A' : nibble + '0';
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
84 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
85
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
86 void gdb_calc_checksum(char * command, char *out)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
87 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
88 uint8_t checksum = 0;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
89 while (*command)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
90 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
91 checksum += *(command++);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
92 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
93 hex_8(checksum, out);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
94 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
95
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
96 void write_or_die(int fd, const void *buf, size_t count)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
97 {
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
98 if (GDB_WRITE(fd, buf, count) < count) {
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 757
diff changeset
99 fatal_error("Error writing to stdout\n");
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
100 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
101 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
102
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
103 void gdb_send_command(char * command)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
104 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
105 char end[3];
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
106 write_or_die(GDB_OUT_FD, "$", 1);
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
107 write_or_die(GDB_OUT_FD, command, strlen(command));
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
108 end[0] = '#';
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
109 gdb_calc_checksum(command, end+1);
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
110 write_or_die(GDB_OUT_FD, end, 3);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
111 dfprintf(stderr, "Sent $%s#%c%c\n", command, end[1], end[2]);
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
112 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
113
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
114 uint32_t calc_status(m68k_context * context)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
115 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
116 uint32_t status = context->status << 3;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
117 for (int i = 0; i < 5; i++)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
118 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
119 status <<= 1;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
120 status |= context->flags[i];
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
121 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
122 return status;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
123 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
124
526
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
125 void update_status(m68k_context * context, uint16_t value)
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
126 {
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
127 context->status = value >> 8;
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
128 for (int i = 4; i >= 0; i--)
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
129 {
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
130 context->flags[i] = value & 1;
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
131 value >>= 1;
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
132 }
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
133 }
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
134
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1329
diff changeset
135 uint8_t m68k_read_byte(m68k_context * context, uint32_t address)
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
136 {
801
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
137
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
138 genesis_context *gen = context->system;
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
139 //TODO: Use generated read/write functions to support access to hardware that is not ROM or RAM
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
140 uint16_t * word = get_native_pointer(address & 0xFFFFFFFE, (void **)context->mem_pointers, &context->options->gen);
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
141 if (word) {
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
142 if (address & 1) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
143 return *word;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
144 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
145 return *word >> 8;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
146 }
801
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
147 if (address >= 0xA00000 && address < 0xA04000) {
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
148 return gen->zram[address & 0x1FFF];
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
149 }
801
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
150 return 0;
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
151 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
152
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1329
diff changeset
153 void m68k_write_byte(m68k_context * context, uint32_t address, uint8_t value)
530
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
154 {
801
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
155 genesis_context *gen = context->system;
530
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
156 //TODO: Use generated read/write functions so that memory map is properly respected
801
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
157 uint16_t * word = get_native_pointer(address & 0xFFFFFFFE, (void **)context->mem_pointers, &context->options->gen);
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
158 if (word) {
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
159 if (address & 1) {
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
160 *word = (*word & 0xFF00) | value;
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
161 } else {
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
162 *word = (*word & 0xFF) | value << 8;
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
163 }
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
164 //TODO: Deal with this more generally once m68k_handle_code_write can handle it
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
165 if (address >= 0xE00000) {
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
166 m68k_handle_code_write(address, context);
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
167 }
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
168 return;
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
169 }
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
170 if (address >= 0xA00000 && address < 0xA04000) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents: 804
diff changeset
171 gen->zram[address & 0x1FFF] = value;
530
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
172 genesis_context * gen = context->system;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1329
diff changeset
173 #if !defined(NO_Z80) && !defined(NEW_CORE)
804
59e664fa2da8 Fix a search/replace bug from the old Win32 GDB remote debugging work and replace some more print+exit combos with fatal_error
Michael Pavone <pavone@retrodev.com>
parents: 803
diff changeset
174 z80_handle_code_write(address & 0x1FFF, gen->z80);
548
a3afee2271ce Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents: 530
diff changeset
175 #endif
530
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
176 return;
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
177 } else {
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
178 return;
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
179 }
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
180 }
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
181
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
182 void gdb_run_command(m68k_context * context, uint32_t pc, char * command)
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
183 {
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
184 char send_buf[512];
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
185 dfprintf(stderr, "Received command %s\n", command);
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
186 switch(*command)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
187 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
188
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
189 case 'c':
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
190 if (*(command+1) != 0) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
191 //TODO: implement resuming at an arbitrary address
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
192 goto not_impl;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
193 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
194 cont = 1;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
195 expect_break_response = 1;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
196 break;
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
197 case 's': {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
198 if (*(command+1) != 0) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
199 //TODO: implement resuming at an arbitrary address
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
200 goto not_impl;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
201 }
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
202 m68kinst inst;
801
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
203 genesis_context *gen = context->system;
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
204 uint16_t * pc_ptr = get_native_pointer(pc, (void **)context->mem_pointers, &context->options->gen);
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
205 if (!pc_ptr) {
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 757
diff changeset
206 fatal_error("Entered gdb remote debugger stub at address %X\n", pc);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
207 }
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
208 uint16_t * after_pc = m68k_decode(pc_ptr, &inst, pc & 0xFFFFFF);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
209 uint32_t after = pc + (after_pc-pc_ptr)*2;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
210
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
211 if (inst.op == M68K_RTS) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
212 after = (read_dma_value(context->aregs[7]/2) << 16) | read_dma_value(context->aregs[7]/2 + 1);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
213 } else if (inst.op == M68K_RTE || inst.op == M68K_RTR) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
214 after = (read_dma_value((context->aregs[7]+2)/2) << 16) | read_dma_value((context->aregs[7]+2)/2 + 1);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
215 } else if(m68k_is_branch(&inst)) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
216 if (inst.op == M68K_BCC && inst.extra.cond != COND_TRUE) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
217 branch_f = after;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
218 branch_t = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
219 insert_breakpoint(context, branch_t, gdb_debug_enter);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
220 } else if(inst.op == M68K_DBCC && inst.extra.cond != COND_FALSE) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
221 branch_t = after;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
222 branch_f = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
223 insert_breakpoint(context, branch_f, gdb_debug_enter);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
224 } else {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
225 after = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
226 }
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
227 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
228 insert_breakpoint(context, after, gdb_debug_enter);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
229
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
230 cont = 1;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
231 expect_break_response = 1;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
232 break;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
233 }
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
234 case 'H':
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
235 if (command[1] == 'g' || command[1] == 'c') {;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
236 //no thread suport, just acknowledge
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
237 gdb_send_command("OK");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
238 } else {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
239 goto not_impl;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
240 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
241 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
242 case 'Z': {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
243 uint8_t type = command[1];
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
244 if (type < '2') {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
245 uint32_t address = strtoul(command+3, NULL, 16);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
246 insert_breakpoint(context, address, gdb_debug_enter);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
247 bp_def *new_bp = malloc(sizeof(bp_def));
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
248 new_bp->next = breakpoints;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
249 new_bp->address = address;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
250 new_bp->index = bp_index++;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
251 breakpoints = new_bp;
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
252 gdb_send_command("OK");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
253 } else {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
254 //watchpoints are not currently supported
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
255 gdb_send_command("");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
256 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
257 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
258 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
259 case 'z': {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
260 uint8_t type = command[1];
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
261 if (type < '2') {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
262 uint32_t address = strtoul(command+3, NULL, 16);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
263 remove_breakpoint(context, address);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
264 bp_def **found = find_breakpoint(&breakpoints, address);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
265 if (*found)
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
266 {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
267 bp_def * to_remove = *found;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
268 *found = to_remove->next;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
269 free(to_remove);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
270 }
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
271 gdb_send_command("OK");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
272 } else {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
273 //watchpoints are not currently supported
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
274 gdb_send_command("");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
275 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
276 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
277 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
278 case 'g': {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
279 char * cur = send_buf;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
280 for (int i = 0; i < 8; i++)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
281 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
282 hex_32(context->dregs[i], cur);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
283 cur += 8;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
284 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
285 for (int i = 0; i < 8; i++)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
286 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
287 hex_32(context->aregs[i], cur);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
288 cur += 8;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
289 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
290 hex_32(calc_status(context), cur);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
291 cur += 8;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
292 hex_32(pc, cur);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
293 cur += 8;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
294 *cur = 0;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
295 gdb_send_command(send_buf);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
296 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
297 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
298 case 'm': {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
299 char * rest;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
300 uint32_t address = strtoul(command+1, &rest, 16);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
301 uint32_t size = strtoul(rest+1, NULL, 16);
757
483f7e7926a6 More clang warning cleanup
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
302 if (size > (sizeof(send_buf)-1)/2) {
483f7e7926a6 More clang warning cleanup
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
303 size = (sizeof(send_buf)-1)/2;
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
304 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
305 char *cur = send_buf;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
306 while (size)
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
307 {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1329
diff changeset
308 hex_8(m68k_read_byte(context, address), cur);
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
309 cur += 2;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
310 address++;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
311 size--;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
312 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
313 *cur = 0;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
314 gdb_send_command(send_buf);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
315 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
316 }
530
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
317 case 'M': {
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
318 char * rest;
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
319 uint32_t address = strtoul(command+1, &rest, 16);
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
320 uint32_t size = strtoul(rest+1, &rest, 16);
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
321
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
322 char *cur = rest+1;
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
323 while (size)
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
324 {
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
325 char tmp[3];
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
326 tmp[0] = *(cur++);
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
327 tmp[1] = *(cur++);
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
328 tmp[2] = 0;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1329
diff changeset
329 m68k_write_byte(context, address, strtoul(tmp, NULL, 16));
530
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
330 address++;
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
331 size--;
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
332 }
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
333 gdb_send_command("OK");
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
334 break;
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
335 }
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
336 case 'X':
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
337 //binary transfers aren't supported currently as I don't feel like dealing with the escaping
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
338 gdb_send_command("");
92606a032d56 Implement memory writes in GDB remote debugging stub
Mike Pavone <pavone@retrodev.com>
parents: 526
diff changeset
339 break;
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
340 case 'p': {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
341 unsigned long reg = strtoul(command+1, NULL, 16);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
342
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
343 if (reg < 8) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
344 hex_32(context->dregs[reg], send_buf);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
345 } else if (reg < 16) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
346 hex_32(context->aregs[reg-8], send_buf);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
347 } else if (reg == 16) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
348 hex_32(calc_status(context), send_buf);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
349 } else if (reg == 17) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
350 hex_32(pc, send_buf);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
351 } else {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
352 send_buf[0] = 0;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
353 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
354 send_buf[8] = 0;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
355 gdb_send_command(send_buf);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
356 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
357 }
526
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
358 case 'P': {
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
359 char *after = NULL;
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
360 unsigned long reg = strtoul(command+1, &after, 16);
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
361 uint32_t value = strtoul(after+1, NULL, 16);
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
362
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
363 if (reg < 8) {
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
364 context->dregs[reg] = value;
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
365 } else if (reg < 16) {
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
366 context->aregs[reg-8] = value;
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
367 } else if (reg == 16) {
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
368 update_status(context, value);
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
369 } else {
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
370 //supporting updates to PC is going to be a pain
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
371 gdb_send_command("E01");
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
372 break;
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
373 }
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
374 gdb_send_command("OK");
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
375 break;
6fe73296938a Support setting registers in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 525
diff changeset
376 }
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
377 case 'q':
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
378 if (!memcmp("Supported", command+1, strlen("Supported"))) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
379 sprintf(send_buf, "PacketSize=%X", (int)bufsize);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
380 gdb_send_command(send_buf);
1166
73e36dac5be7 Fix GDB remote protocol support
Michael Pavone <pavone@retrodev.com>
parents: 1111
diff changeset
381 } else if (!memcmp("Attached", command+1, strlen("Attached"))) {
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
382 //not really meaningful for us, but saying we spawned a new process
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
383 //is probably closest to the truth
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
384 gdb_send_command("0");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
385 } else if (!memcmp("Offsets", command+1, strlen("Offsets"))) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
386 //no relocations, so offsets are all 0
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
387 gdb_send_command("Text=0;Data=0;Bss=0");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
388 } else if (!memcmp("Symbol", command+1, strlen("Symbol"))) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
389 gdb_send_command("");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
390 } else if (!memcmp("TStatus", command+1, strlen("TStatus"))) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
391 //TODO: actual tracepoint support
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
392 gdb_send_command("T0;tnotrun:0");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
393 } else if (!memcmp("TfV", command+1, strlen("TfV")) || !memcmp("TfP", command+1, strlen("TfP"))) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
394 //TODO: actual tracepoint support
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
395 gdb_send_command("");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
396 } else if (command[1] == 'C') {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
397 //we only support a single thread currently, so send 1
1166
73e36dac5be7 Fix GDB remote protocol support
Michael Pavone <pavone@retrodev.com>
parents: 1111
diff changeset
398 gdb_send_command("QC1");
73e36dac5be7 Fix GDB remote protocol support
Michael Pavone <pavone@retrodev.com>
parents: 1111
diff changeset
399 } else if (!strcmp("fThreadInfo", command + 1)) {
73e36dac5be7 Fix GDB remote protocol support
Michael Pavone <pavone@retrodev.com>
parents: 1111
diff changeset
400 //we only support a single thread currently, so send 1
73e36dac5be7 Fix GDB remote protocol support
Michael Pavone <pavone@retrodev.com>
parents: 1111
diff changeset
401 gdb_send_command("m1");
73e36dac5be7 Fix GDB remote protocol support
Michael Pavone <pavone@retrodev.com>
parents: 1111
diff changeset
402 } else if (!strcmp("sThreadInfo", command + 1)) {
73e36dac5be7 Fix GDB remote protocol support
Michael Pavone <pavone@retrodev.com>
parents: 1111
diff changeset
403 gdb_send_command("l");
1963
495569c1dc61 Add support for printing a byte from memory in native debugger. Add stubs for GDB commands qThreadExtraInfo and qP
Eric Fry <yuv422@users.noreply.github.com>
parents: 1949
diff changeset
404 } else if (!memcmp("ThreadExtraInfo", command+1, strlen("ThreadExtraInfo"))) {
495569c1dc61 Add support for printing a byte from memory in native debugger. Add stubs for GDB commands qThreadExtraInfo and qP
Eric Fry <yuv422@users.noreply.github.com>
parents: 1949
diff changeset
405 gdb_send_command("");
495569c1dc61 Add support for printing a byte from memory in native debugger. Add stubs for GDB commands qThreadExtraInfo and qP
Eric Fry <yuv422@users.noreply.github.com>
parents: 1949
diff changeset
406 } else if (command[1] == 'P') {
495569c1dc61 Add support for printing a byte from memory in native debugger. Add stubs for GDB commands qThreadExtraInfo and qP
Eric Fry <yuv422@users.noreply.github.com>
parents: 1949
diff changeset
407 gdb_send_command("");
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
408 } else {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
409 goto not_impl;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
410 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
411 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
412 case 'v':
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
413 if (!memcmp("Cont?", command+1, strlen("Cont?"))) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
414 gdb_send_command("vCont;c;C;s;S");
1166
73e36dac5be7 Fix GDB remote protocol support
Michael Pavone <pavone@retrodev.com>
parents: 1111
diff changeset
415 } else if (!strcmp("MustReplyEmpty", command + 1)) {
73e36dac5be7 Fix GDB remote protocol support
Michael Pavone <pavone@retrodev.com>
parents: 1111
diff changeset
416 gdb_send_command("");
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
417 } else if (!memcmp("Cont;", command+1, strlen("Cont;"))) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
418 switch (*(command + 1 + strlen("Cont;")))
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
419 {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
420 case 'c':
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
421 case 'C':
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
422 //might be interesting to have continue with signal fire a
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
423 //trap exception or something, but for no we'll treat it as
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
424 //a normal continue
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
425 cont = 1;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
426 expect_break_response = 1;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
427 break;
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
428 case 's':
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
429 case 'S': {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
430 m68kinst inst;
801
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
431 genesis_context *gen = context->system;
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
432 uint16_t * pc_ptr = get_native_pointer(pc, (void **)context->mem_pointers, &context->options->gen);
092524bb2e8f Fix GDB remote debugging support
Michael Pavone <pavone@retrodev.com>
parents: 792
diff changeset
433 if (!pc_ptr) {
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 757
diff changeset
434 fatal_error("Entered gdb remote debugger stub at address %X\n", pc);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
435 }
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
436 uint16_t * after_pc = m68k_decode(pc_ptr, &inst, pc & 0xFFFFFF);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
437 uint32_t after = pc + (after_pc-pc_ptr)*2;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
438
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
439 if (inst.op == M68K_RTS) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
440 after = (read_dma_value(context->aregs[7]/2) << 16) | read_dma_value(context->aregs[7]/2 + 1);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
441 } else if (inst.op == M68K_RTE || inst.op == M68K_RTR) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
442 after = (read_dma_value((context->aregs[7]+2)/2) << 16) | read_dma_value((context->aregs[7]+2)/2 + 1);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
443 } else if(m68k_is_branch(&inst)) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
444 if (inst.op == M68K_BCC && inst.extra.cond != COND_TRUE) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
445 branch_f = after;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
446 branch_t = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
447 insert_breakpoint(context, branch_t, gdb_debug_enter);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
448 } else if(inst.op == M68K_DBCC && inst.extra.cond != COND_FALSE) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
449 branch_t = after;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
450 branch_f = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
451 insert_breakpoint(context, branch_f, gdb_debug_enter);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
452 } else {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
453 after = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
454 }
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
455 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
456 insert_breakpoint(context, after, gdb_debug_enter);
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
457
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
458 cont = 1;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
459 expect_break_response = 1;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
460 break;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
461 }
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
462 default:
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
463 goto not_impl;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
464 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
465 } else {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
466 goto not_impl;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
467 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
468 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
469 case '?':
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
470 gdb_send_command("S05");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
471 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
472 default:
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
473 goto not_impl;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
474
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
475 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
476 return;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
477 not_impl:
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 757
diff changeset
478 fatal_error("Command %s is not implemented, exiting...\n", command);
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
479 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
480
1329
85a90964b557 Fix interaction between 68K debugger and instruction retranslation due to self modifying code or bank switching
Michael Pavone <pavone@retrodev.com>
parents: 1245
diff changeset
481 void gdb_debug_enter(m68k_context * context, uint32_t pc)
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
482 {
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
483 dfprintf(stderr, "Entered debugger at address %X\n", pc);
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
484 if (expect_break_response) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
485 gdb_send_command("S05");
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
486 expect_break_response = 0;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
487 }
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
488 if ((pc & 0xFFFFFF) == branch_t) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
489 bp_def ** f_bp = find_breakpoint(&breakpoints, branch_f);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
490 if (!*f_bp) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
491 remove_breakpoint(context, branch_f);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
492 }
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
493 branch_t = branch_f = 0;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
494 } else if((pc & 0xFFFFFF) == branch_f) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
495 bp_def ** t_bp = find_breakpoint(&breakpoints, branch_t);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
496 if (!*t_bp) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
497 remove_breakpoint(context, branch_t);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
498 }
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
499 branch_t = branch_f = 0;
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
500 }
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
501 //Check if this is a user set breakpoint, or just a temporary one
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
502 bp_def ** this_bp = find_breakpoint(&breakpoints, pc & 0xFFFFFF);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
503 if (!*this_bp) {
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
504 remove_breakpoint(context, pc & 0xFFFFFF);
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
505 }
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
506 resume_pc = pc;
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
507 cont = 0;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
508 uint8_t partial = 0;
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
509 while(!cont)
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
510 {
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
511 if (!curbuf) {
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
512 int numread = GDB_READ(GDB_IN_FD, buf, bufsize);
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
513 if (numread < 0) {
804
59e664fa2da8 Fix a search/replace bug from the old Win32 GDB remote debugging work and replace some more print+exit combos with fatal_error
Michael Pavone <pavone@retrodev.com>
parents: 803
diff changeset
514 fatal_error("Failed to read on GDB input file descriptor\n");
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
515 }
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
516 dfprintf(stderr, "read %d bytes\n", numread);
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
517 curbuf = buf;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
518 end = buf + numread;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
519 } else if (partial) {
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
520 if (curbuf != buf) {
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
521 memmove(curbuf, buf, end-curbuf);
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
522 end -= curbuf - buf;
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
523 }
1245
42fb3ee1e92c Fix direct usage of read rather than GDB_READ in gdb_remote.c
Michael Pavone <pavone@retrodev.com>
parents: 1189
diff changeset
524 int numread = GDB_READ(GDB_IN_FD, end, bufsize - (end-buf));
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
525 end += numread;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
526 curbuf = buf;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
527 }
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
528 for (; curbuf < end; curbuf++)
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
529 {
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
530 if (*curbuf == '$')
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
531 {
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
532 curbuf++;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
533 char * start = curbuf;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
534 while (curbuf < end && *curbuf != '#') {
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
535 curbuf++;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
536 }
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
537 if (*curbuf == '#') {
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
538 //check to make sure we've received the checksum bytes
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
539 if (end-curbuf >= 2) {
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
540 //TODO: verify checksum
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
541 //Null terminate payload
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
542 *curbuf = 0;
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
543 //send acknowledgement
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
544 if (GDB_WRITE(GDB_OUT_FD, "+", 1) < 1) {
792
724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents: 757
diff changeset
545 fatal_error("Error writing to stdout\n");
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
546 }
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
547 gdb_run_command(context, pc, start);
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
548 curbuf += 2;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
549 }
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
550 } else {
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
551 curbuf--;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
552 partial = 1;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
553 break;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
554 }
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
555 } else {
525
62860044337d Support single stepping in gdb remote debugger
Mike Pavone <pavone@retrodev.com>
parents: 515
diff changeset
556 dfprintf(stderr, "Ignoring character %c\n", *curbuf);
505
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
557 }
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
558 }
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
559 if (curbuf == end) {
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
560 curbuf = NULL;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
561 }
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
562 }
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
563 }
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
564
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
565 void gdb_remote_init(void)
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
566 {
515
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
567 buf = malloc(INITIAL_BUFFER_SIZE);
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
568 curbuf = NULL;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents: 505
diff changeset
569 bufsize = INITIAL_BUFFER_SIZE;
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
570 #ifdef _WIN32
1949
5a76a7373823 Get WIP net play code compiling on Windows and cleanup some unistd.h includes
Michael Pavone <pavone@retrodev.com>
parents: 1945
diff changeset
571 socket_init();
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
572
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
573 struct addrinfo request, *result;
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
574 memset(&request, 0, sizeof(request));
1189
75ba222877f7 Force IPV4 for GDB remote debugging on Windows. Bind to localhost instead of unspecified address since listening on external ports probably isn't a good idea in the general case
Michael Pavone <pavone@retrodev.com>
parents: 1166
diff changeset
575 request.ai_family = AF_INET;
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
576 request.ai_socktype = SOCK_STREAM;
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
577 request.ai_flags = AI_PASSIVE;
1189
75ba222877f7 Force IPV4 for GDB remote debugging on Windows. Bind to localhost instead of unspecified address since listening on external ports probably isn't a good idea in the general case
Michael Pavone <pavone@retrodev.com>
parents: 1166
diff changeset
578 getaddrinfo("localhost", "1234", &request, &result);
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
579
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
580 int listen_sock = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
581 if (listen_sock < 0) {
804
59e664fa2da8 Fix a search/replace bug from the old Win32 GDB remote debugging work and replace some more print+exit combos with fatal_error
Michael Pavone <pavone@retrodev.com>
parents: 803
diff changeset
582 fatal_error("Failed to open GDB remote debugging socket");
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
583 }
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
584 if (bind(listen_sock, result->ai_addr, result->ai_addrlen) < 0) {
804
59e664fa2da8 Fix a search/replace bug from the old Win32 GDB remote debugging work and replace some more print+exit combos with fatal_error
Michael Pavone <pavone@retrodev.com>
parents: 803
diff changeset
585 fatal_error("Failed to bind GDB remote debugging socket");
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
586 }
1945
ba7231d2411c Fix addrinfo leak in GDB remote debug support
Michael Pavone <pavone@retrodev.com>
parents: 1792
diff changeset
587 freeaddrinfo(result);
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
588 if (listen(listen_sock, 1) < 0) {
804
59e664fa2da8 Fix a search/replace bug from the old Win32 GDB remote debugging work and replace some more print+exit combos with fatal_error
Michael Pavone <pavone@retrodev.com>
parents: 803
diff changeset
589 fatal_error("Failed to listen on GDB remote debugging socket");
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
590 }
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
591 gdb_sock = accept(listen_sock, NULL, NULL);
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
592 if (gdb_sock < 0) {
804
59e664fa2da8 Fix a search/replace bug from the old Win32 GDB remote debugging work and replace some more print+exit combos with fatal_error
Michael Pavone <pavone@retrodev.com>
parents: 803
diff changeset
593 fatal_error("accept returned an error while listening on GDB remote debugging socket");
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
594 }
1949
5a76a7373823 Get WIP net play code compiling on Windows and cleanup some unistd.h includes
Michael Pavone <pavone@retrodev.com>
parents: 1945
diff changeset
595 socket_close(listen_sock);
1792
52a47611a273 Avoid printing a bunch of junk to stdout when GDB remote debugging is enabled as this can confuse GDB
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
596 #else
52a47611a273 Avoid printing a bunch of junk to stdout when GDB remote debugging is enabled as this can confuse GDB
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
597 disable_stdout_messages();
802
6811f601008f Old changes for GDB remote debugging on Windows I forgot to commit
Michael Pavone <pavone@retrodev.com>
parents: 565
diff changeset
598 #endif
456
249d24973682 Initial work on GDB remote debugging support
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
599 }