lxdream 0.9.1| filename | src/sh4/ia32mac.h |
| changeset | 906:268ea359f884 |
| prev | 905:4c17ebd9ef5e |
| author | nkeynes |
| date | Thu Dec 11 23:26:03 2008 +0000 (15 years ago) |
| permissions | -rw-r--r-- |
| last change | Disable the generational translation cache - I've got no evidence that it actually helps performance, and it simplifies things to get rid of it (in particular, translated code doesn't have to worry about being moved now). |
| file | annotate | diff | log | raw |
1.1 --- a/src/sh4/ia32mac.h Wed Oct 29 23:51:58 2008 +00001.2 +++ b/src/sh4/ia32mac.h Thu Dec 11 23:26:03 2008 +00001.3 @@ -343,39 +343,37 @@1.4 #include <unwind.h>1.6 struct UnwindInfo {1.7 - int have_result;1.8 + uintptr_t block_start;1.9 + uintptr_t block_end;1.10 void *pc;1.11 };1.13 _Unwind_Reason_Code xlat_check_frame( struct _Unwind_Context *context, void *arg )1.14 {1.15 - void *ebp = (void *)_Unwind_GetGR(context, 5);1.16 - void *expect = (((uint8_t *)&sh4r) + 128 );1.17 struct UnwindInfo *info = arg;1.18 - if( ebp == expect ) {1.19 - info->have_result = 1;1.20 - info->pc = (void *)_Unwind_GetIP(context);1.21 - } else if( info->have_result ) {1.22 + void *pc = (void *)_Unwind_GetIP(context);1.23 + if( ((uintptr_t)pc) >= info->block_start && ((uintptr_t)pc) < info->block_end ) {1.24 + info->pc = pc;1.25 return _URC_NORMAL_STOP;1.26 }1.28 return _URC_NO_REASON;1.29 }1.31 -void *xlat_get_native_pc()1.32 +void *xlat_get_native_pc( void *code, uint32_t code_size )1.33 {1.34 struct _Unwind_Exception exc;1.35 struct UnwindInfo info;1.37 - info.have_result = 0;1.38 + info.pc = NULL;1.39 + info.block_start = (uintptr_t)code;1.40 + info.block_end = info.block_start + code_size;1.41 void *result = NULL;1.42 _Unwind_Backtrace( xlat_check_frame, &info );1.43 - if( info.have_result )1.44 - return info.pc;1.45 - return NULL;1.46 + return info.pc;1.47 }1.48 #else1.49 -void *xlat_get_native_pc()1.50 +void *xlat_get_native_pc( void *code, uint32_t code_size )1.51 {1.52 void *result = NULL;1.53 asm(
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