Marcus Meissner
bc75c7eb79
- package fails to build with PIE globally enabled, due to error: inconsistent operand constraints in an 'asm'. Turns out there is a GCC builtin for doing the operation cleanly. (numactl-clearcache-pie.patch) OBS-URL: https://build.opensuse.org/request/show/287374 OBS-URL: https://build.opensuse.org/package/show/Base:System/numactl?expand=0&rev=58
29 lines
997 B
Diff
29 lines
997 B
Diff
--- numactl-2.0.10.orig/clearcache.c
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+++ numactl-2.0.10/clearcache.c
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@@ -54,24 +54,5 @@ void fallback_clearcache(void)
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void clearcache(unsigned char *mem, unsigned size)
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{
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-#if defined(__i386__) || defined(__x86_64__)
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- unsigned i, cl, eax, feat;
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- /* get clflush unit and feature */
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- asm("cpuid" : "=a" (eax), "=b" (cl), "=d" (feat) : "0" (1) : "cx");
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- if (!(feat & (1 << 19)))
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- fallback_clearcache();
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- cl = ((cl >> 8) & 0xff) * 8;
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- for (i = 0; i < size; i += cl)
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- asm("clflush %0" :: "m" (mem[i]));
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-#elif defined(__ia64__)
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- unsigned long cl, endcl;
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- // flush probable 128 byte cache lines (but possibly 64 bytes)
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- cl = (unsigned long)mem;
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- endcl = (unsigned long)(mem + (size-1));
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- for (; cl <= endcl; cl += 64)
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- asm ("fc %0" :: "r"(cl) : "memory" );
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-#else
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-#warning "Consider adding a clearcache implementation for your architecture"
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- fallback_clearcache();
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-#endif
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+ __builtin___clear_cache(mem, (mem + (size-1)));
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}
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