Mercurial > repos > blastem
diff m68k_to_x86.c @ 485:b449af228c63
Follow amd64 ABI stack alignment requirements in places it matters so we can call sprintf with floating point arguments without crashing
| author | Mike Pavone <pavone@retrodev.com> |
|---|---|
| date | Thu, 03 Oct 2013 21:21:47 -0700 |
| parents | 140af5509ce7 |
| children | 7f54f1773e84 |
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--- a/m68k_to_x86.c Thu Oct 03 21:20:29 2013 -0700 +++ b/m68k_to_x86.c Thu Oct 03 21:21:47 2013 -0700 @@ -1,6 +1,6 @@ /* Copyright 2013 Michael Pavone - This file is part of BlastEm. + This file is part of BlastEm. BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. */ #include "gen_x86.h" @@ -4246,7 +4246,17 @@ dst = push_r(dst, CONTEXT); dst = mov_rr(dst, SCRATCH1, RDI, SZ_D); } + dst = test_ir(dst, 8, RSP, SZ_D); + uint8_t *adjust_rsp = dst+1; + dst = jcc(dst, CC_NZ, dst+2); dst = call(dst, cfun); + uint8_t *no_adjust = dst+1; + dst = jmp(dst, dst+2); + *adjust_rsp = dst - (adjust_rsp + 1); + dst = sub_ir(dst, 8, RSP, SZ_Q); + dst = call(dst, cfun); + dst = add_ir(dst, 8, RSP, SZ_Q); + *no_adjust = dst - (no_adjust + 1); if (is_write) { dst = mov_rr(dst, RAX, CONTEXT, SZ_Q); } else { @@ -4339,7 +4349,17 @@ dst = push_r(dst, CONTEXT); dst = mov_rr(dst, SCRATCH1, RDI, SZ_D); } + dst = test_ir(dst, 8, RSP, SZ_D); + uint8_t *adjust_rsp = dst+1; + dst = jcc(dst, CC_NZ, dst+2); dst = call(dst, cfun); + uint8_t *no_adjust = dst+1; + dst = jmp(dst, dst+2); + *adjust_rsp = dst - (adjust_rsp + 1); + dst = sub_ir(dst, 8, RSP, SZ_Q); + dst = call(dst, cfun); + dst = add_ir(dst, 8, RSP, SZ_Q); + *no_adjust = dst - (no_adjust+1); if (is_write) { dst = mov_rr(dst, RAX, CONTEXT, SZ_Q); } else { @@ -4444,7 +4464,17 @@ dst = call(dst, (uint8_t *)m68k_save_context); dst = mov_rr(dst, CONTEXT, RDI, SZ_Q); dst = mov_rr(dst, SCRATCH1, RSI, SZ_D); + dst = test_ir(dst, 8, RSP, SZ_D); + uint8_t *adjust_rsp = dst+1; + dst = jcc(dst, CC_NZ, dst+2); dst = call(dst, (uint8_t *)sync_components); + uint8_t *no_adjust = dst+1; + dst = jmp(dst, dst+2); + *adjust_rsp = dst - (adjust_rsp + 1); + dst = sub_ir(dst, 8, RSP, SZ_Q); + dst = call(dst, (uint8_t *)sync_components); + dst = add_ir(dst, 8, RSP, SZ_Q); + *no_adjust = dst - (no_adjust+1); dst = mov_rr(dst, RAX, CONTEXT, SZ_Q); dst = jmp(dst, (uint8_t *)m68k_load_context); *skip_sync = dst - (skip_sync+1);