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| author | Brian Paul <brian.paul@tungstengraphics.com> | 2001-06-06 18:12:50 +0000 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2001-06-06 18:12:50 +0000 |
| commit | faada79f82144b67e7bc085fa13e935a4f89d73f (patch) | |
| tree | 70973ebdd43a1c8cfb4c63c35af407bd03f95b20 | |
| parent | 025dd4a0fce4b4f5c98bc3618c4a2f91797ba209 (diff) | |
| download | mesa-faada79f82144b67e7bc085fa13e935a4f89d73f.tar.gz | |
test for X86_FXSR_MAGIC to be sure we have the _fpstate.magic field, needed for SSE signal handler
| -rw-r--r-- | src/mesa/x86/common_x86.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/mesa/x86/common_x86.c b/src/mesa/x86/common_x86.c index b48fcce4061..3bf1ca3f28c 100644 --- a/src/mesa/x86/common_x86.c +++ b/src/mesa/x86/common_x86.c @@ -1,4 +1,4 @@ -/* $Id: common_x86.c,v 1.6.4.6 2000/12/07 02:36:07 gareth Exp $ */ +/* $Id: common_x86.c,v 1.6.4.7 2001/06/06 18:12:50 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -88,7 +88,7 @@ static void message( const char *msg ) extern void gl_test_os_katmai_support( void ); extern void gl_test_os_katmai_exception_support( void ); -#if defined(__linux__) && defined(_POSIX_SOURCE) +#if defined(__linux__) && defined(_POSIX_SOURCE) && defined(X86_FXSR_MAGIC) static void sigill_handler( int signal, struct sigcontext sc ) { message( "SIGILL, " ); @@ -126,7 +126,7 @@ static void sigfpe_handler( int signal, struct sigcontext sc ) gl_problem( NULL, "SSE enabling test failed badly!" ); } } -#endif /* __linux__ && _POSIX_SOURCE */ +#endif /* __linux__ && _POSIX_SOURCE && X86_FXSR_MAGIC */ /* If we're running on a processor that can do SSE, let's see if we * are allowed to or not. This will catch 2.4.0 or later kernels that @@ -139,7 +139,7 @@ static void sigfpe_handler( int signal, struct sigcontext sc ) static void check_os_katmai_support( void ) { #if defined(__linux__) -#if defined(_POSIX_SOURCE) +#if defined(_POSIX_SOURCE) && defined(X86_FXSR_MAGIC) struct sigaction saved_sigill; struct sigaction saved_sigfpe; @@ -213,7 +213,7 @@ static void check_os_katmai_support( void ) */ message( "Cannot test OS support for SSE, disabling to be safe.\n" ); gl_x86_cpu_features &= ~(X86_FEATURE_XMM); -#endif /* _POSIX_SOURCE */ +#endif /* _POSIX_SOURCE && X86_FXSR_MAGIC */ #else /* Do nothing on non-Linux platforms for now. */ |