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fix for compiling on ppc64le, bug #69744 at https://bugs.php.net/bug.php?id=69744 #97

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fix for compiling on ppc64le, bug #69744 at https://bugs.php.net/bug.php?id=69744 #97

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a000b06
doesn't compile. gives error
jcomeauictx Jun 16, 2017
6197037
compiles but incorrect, errors if tb overflows
jcomeauictx Jun 16, 2017
6b8d28c
updated README
jcomeauictx Jun 16, 2017
cdd69cb
added top-level Makefile
jcomeauictx Jun 16, 2017
70eed64
complete but known to fail compilation
jcomeauictx Jun 16, 2017
58081ca
trying "b" constraint
jcomeauictx Jun 16, 2017
41dd4f7
trying with specifed register r0
jcomeauictx Jun 16, 2017
08f1ca0
Error: unsupported relocation against r0
jcomeauictx Jun 16, 2017
2e6a333
workaround for bug in php5-dev package phpize
jcomeauictx Jun 16, 2017
740ed7d
fixed tests on my (x86) box
jcomeauictx Jun 16, 2017
54335b2
added diff rule to clean up my pull request
jcomeauictx Jun 26, 2017
022a129
removed changes unnecessary for the patch
jcomeauictx Jun 26, 2017
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11 changes: 11 additions & 0 deletions extension/xhprof.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1232,7 +1232,18 @@ void hp_sample_check(hp_entry_t **entries TSRMLS_DC) {
static inline uint64 cycle_timer() {
uint32 __a,__d;
uint64 val;
#ifdef _ARCH_PPC64
asm volatile(
"0: mftbu %0\n\t"
" mftb %1\n\t"
" mftbu 0\n\t"
" cmpw %0,0\n\t"
" bne 0b\n\t"
: "=r" (__d), "=r" (__a)
: : "r0", "cc");
#else
asm volatile("rdtsc" : "=a" (__a), "=d" (__d));
#endif
(val) = ((uint64)__a) | (((uint64)__d)<<32);
return val;
}
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