diff options
| author | Keith Whitwell <keith@tungstengraphics.com> | 2008-02-13 12:35:16 +0000 |
|---|---|---|
| committer | Keith Whitwell <keith@tungstengraphics.com> | 2008-02-13 12:36:32 +0000 |
| commit | 8162d317d2f6f2dcc31f31c0c2d663c33dfee053 (patch) | |
| tree | fca0447312e47867d8cea4d4e828b9bc58166352 /src/mesa/x86/rtasm | |
| parent | a3534a27bfc9827a12d83f7b6464af98424cf8d4 (diff) | |
x86: emit absolute calls, as reallocating exec mem breaks relative ones
Diffstat (limited to 'src/mesa/x86/rtasm')
| -rw-r--r-- | src/mesa/x86/rtasm/x86sse.c | 13 | ||||
| -rw-r--r-- | src/mesa/x86/rtasm/x86sse.h | 3 |
2 files changed, 15 insertions, 1 deletions
diff --git a/src/mesa/x86/rtasm/x86sse.c b/src/mesa/x86/rtasm/x86sse.c index 385fb84c01..e944d00f9e 100644 --- a/src/mesa/x86/rtasm/x86sse.c +++ b/src/mesa/x86/rtasm/x86sse.c @@ -278,11 +278,24 @@ void x86_jmp( struct x86_function *p, unsigned char *label) emit_1i(p, label - x86_get_label(p) - 4); } +#if 0 +/* This doesn't work once we start reallocating & copying the + * generated code on buffer fills, because the call is relative to the + * current pc. + */ void x86_call( struct x86_function *p, void (*label)()) { emit_1ub(p, 0xe8); emit_1i(p, cptr(label) - x86_get_label(p) - 4); } +#else +void x86_call( struct x86_function *p, struct x86_reg reg) +{ + emit_1ub(p, 0xff); + emit_modrm(p, reg, reg); +} +#endif + /* michal: * Temporary. As I need immediate operands, and dont want to mess with the codegen, diff --git a/src/mesa/x86/rtasm/x86sse.h b/src/mesa/x86/rtasm/x86sse.h index d53b6d71a6..c2aa416492 100644 --- a/src/mesa/x86/rtasm/x86sse.h +++ b/src/mesa/x86/rtasm/x86sse.h @@ -119,7 +119,8 @@ void x86_fixup_fwd_jump( struct x86_function *p, void x86_jmp( struct x86_function *p, unsigned char *label ); -void x86_call( struct x86_function *p, void (*label)() ); +/* void x86_call( struct x86_function *p, void (*label)() ); */ +void x86_call( struct x86_function *p, struct x86_reg reg); /* michal: * Temporary. As I need immediate operands, and dont want to mess with the codegen, |