diff options
Diffstat (limited to 'user/sdl2/altivec-detection.patch')
| -rw-r--r-- | user/sdl2/altivec-detection.patch | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/user/sdl2/altivec-detection.patch b/user/sdl2/altivec-detection.patch new file mode 100644 index 000000000..ccb60a375 --- /dev/null +++ b/user/sdl2/altivec-detection.patch @@ -0,0 +1,22 @@ +Use getauxval on Linux if available. + +--- SDL2-2.0.22/src/cpuinfo/SDL_cpuinfo.c.old 2022-01-08 02:29:52.000000000 +0000 ++++ SDL2-2.0.22/src/cpuinfo/SDL_cpuinfo.c 2025-04-27 18:58:12.097867624 +0000 +@@ -113,7 +113,7 @@ + #define CPU_HAS_AVX512F (1 << 12) + #define CPU_HAS_ARM_SIMD (1 << 13) + +-#if SDL_ALTIVEC_BLITTERS && HAVE_SETJMP && !__MACOSX__ && !__OpenBSD__ && !__FreeBSD__ ++#if SDL_ALTIVEC_BLITTERS && HAVE_SETJMP && !__MACOSX__ && !__OpenBSD__ && !__FreeBSD__ && !__linux__ + /* This is the brute force way of detecting instruction sets... + the idea is borrowed from the libmpeg2 library - thanks! + */ +@@ -333,6 +333,8 @@ + elf_aux_info(AT_HWCAP, &cpufeatures, sizeof(cpufeatures)); + altivec = cpufeatures & PPC_FEATURE_HAS_ALTIVEC; + return altivec; ++#elif defined(__linux__) && defined(__powerpc__) && HAVE_GETAUXVAL ++ altivec = getauxval(AT_HWCAP) & PPC_FEATURE_HAS_ALTIVEC; + #elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP + void (*handler) (int sig); + handler = signal(SIGILL, illegal_instruction); |