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android_memset.c: Use __attribute__((no_sanitize("integer"))) 

Turn off integer sanitization on android_memset. memset()ing is
expected to be a fast operation.

Avoid the use of the "while (size--) { }" construct, which harmlessly
underflows.

Change-Id: Ia61ff2323c759bf52df7e70b8be2fae0b0366dda
This commit is contained in:
Nick Kralevich 2015-08-27 13:14:36 -07:00
parent f306812303
commit d9eda62875
1 changed files with 8 additions and 1 deletions
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9
libcutils/arch-mips/android_memset.c
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@ -30,6 +30,9 @@
#include <cutils/memory.h>
#ifdef __clang__
__attribute__((no_sanitize("integer")))
#endif
void android_memset16(uint16_t* dst, uint16_t value, size_t size)
{
/* optimized version of
@ -54,6 +57,9 @@ void android_memset16(uint16_t* dst, uint16_t value, size_t size)
}
#ifdef __clang__
__attribute__((no_sanitize("integer")))
#endif
void android_memset32(uint32_t* dst, uint32_t value, size_t size)
{
/* optimized version of
@ -86,7 +92,8 @@ void android_memset32(uint32_t* dst, uint32_t value, size_t size)
/* fill remainder with original 32-bit single-elem loop */
dst = (uint32_t*) dst64;
while (size--) {
while (size != 0) {
size--;
*dst++ = value;
}