Bryan Levin reported a problem of the FreeBSD flac port dumping core on FreeBSD 4.x:
http://sourceforge.net/tracker/index.php?func=detail&aid=1099004&group_id=13478&atid=113478 It turns out that the port enabled SSE support, but FreeBSD 4.x does not support SSE by default. (FreeBSD 5.x and later do.) I have added a small patch to the port to check at runtime whether the system handles SSE. (The semantics of hw.instruction_sse are that a value of 1 means that the kernel includes SSE handling *and* the CPU supports SSE. A value of 0 means that the kernel will not handle SSE so it can't be used, although the system CPU may or may not support it.) --- src/libFLAC/cpu.c.orig +++ src/libFLAC/cpu.c @@ -25,6 +25,11 @@ #include <config.h> #endif +#ifdef __FreeBSD__ +#include <sys/types.h> +#include <sys/sysctl.h> +#endif + const unsigned FLAC__CPUINFO_IA32_CPUID_CMOV = 0x00008000; const unsigned FLAC__CPUINFO_IA32_CPUID_MMX = 0x00800000; const unsigned FLAC__CPUINFO_IA32_CPUID_FXSR = 0x01000000; @@ -52,6 +57,15 @@ #ifndef FLAC__SSE_OS info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = false; +#else +#if defined(__FreeBSD__) + { + int sse; + size_t len = sizeof(sse); + if (sysctlbyname("hw.instruction_sse", &sse, &len, NULL, 0) || !sse) + info->data.ia32.fxsr = info->data.ia32.sse = info->data.ia32.sse2 = false; + } +#endif #endif #ifdef FLAC__USE_3DNOW -- Christian "naddy" Weisgerber [EMAIL PROTECTED] _______________________________________________ Flac-dev mailing list Flac-dev@xiph.org http://lists.xiph.org/mailman/listinfo/flac-dev
