diff options
Diffstat (limited to 'user/dosbox/gcc8-pmmx.patch')
| -rw-r--r-- | user/dosbox/gcc8-pmmx.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/user/dosbox/gcc8-pmmx.patch b/user/dosbox/gcc8-pmmx.patch new file mode 100644 index 000000000..3b86802ed --- /dev/null +++ b/user/dosbox/gcc8-pmmx.patch @@ -0,0 +1,32 @@ +From 771f1c8304253fcb95aef54da739f43712aea726 Mon Sep 17 00:00:00 2001 +From: Jonathan Campbell <jonathan@castus.tv> +Date: Sun, 20 May 2018 19:30:58 -0700 +Subject: [PATCH] Suddenly MinGW GCC 7.3.0 does not allow the dynamic core to + declare EBP clobbered. Fix dynamic core entry appropriately + +--- + src/cpu/core_dyn_x86/risc_x86.h | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +diff --git a/src/cpu/core_dyn_x86/risc_x86.h b/src/cpu/core_dyn_x86/risc_x86.h +index dea5ae0ca..d2a847a4f 100644 +--- a/src/cpu/core_dyn_x86/risc_x86.h ++++ b/src/cpu/core_dyn_x86/risc_x86.h +@@ -130,13 +130,15 @@ static BlockReturn gen_runcode(Bit8u * code) { + #else + register Bit32u tempflags=reg_flags & FMASK_TEST; + __asm__ volatile ( ++ "pushl %%ebp \n" +- "call 1f ; 1: addl $run_return_adress-.,(%%esp) \n" ++ "pushl $(run_return_adress) \n" + "pushl %2 \n" + "jmp *%3 \n" + "run_return_adress: \n" ++ "popl %%ebp \n" + :"=a" (retval), "=c" (tempflags) + :"r" (tempflags),"r" (code) +- :"%edx","%ebx","%edi","%esi","%ebp","cc","memory" ++ :"%edx","%ebx","%edi","%esi"/*,"%ebp"*/,"cc","memory" /* NTS: GCC 7.3.0 MinGW suddenly will not allow this code to declare EBP clobbered */ + ); + reg_flags=(reg_flags & ~FMASK_TEST) | (tempflags & FMASK_TEST); + #endif |