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Get --ftrace working on aarch64

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This change implements a new approach to function call logging, that's
based on the GCC flag: -fpatchable-function-entry. Read the commentary
in build/config.mk to learn how it works.
This commit is contained in:
Justine Tunney 2023-06-05 23:35:31 -07:00
parent 5b908bc756
commit eb40cb371d
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GPG key ID: BE714B4575D6E328
934 changed files with 2259 additions and 1268 deletions
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5
libc/intrin/strcmp.c
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@ -19,6 +19,7 @@
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/str/str.h"
#ifndef __aarch64__
/**
* Compares NUL-terminated strings.
@ -28,7 +29,7 @@
* @return is <0, 0, or >0 based on uint8_t comparison
* @asyncsignalsafe
*/
noasan int strcmp(const char *a, const char *b) {
int strcmp(const char *a, const char *b) {
int c;
size_t i = 0;
uint64_t v, w, d;
@ -58,3 +59,5 @@ noasan int strcmp(const char *a, const char *b) {
}
return (a[i] & 255) - (b[i] & 255);
}
#endif /* __aarch64__ */