Sinipelto
/
banan-os
forked from Bananymous/banan-os
1
0
Fork 0
Code Pull Requests Activity

LibC: Make memcpy and memset not optimized 

GCC does some weird optimizations and breaks these functions
This commit is contained in:
Bananymous 2023-12-19 10:28:40 +02:00
parent 5edbb1d5c4
commit 637397dd2f
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libc/string.cpp
View File

@ -17,7 +17,8 @@ int memcmp(const void* s1, const void* s2, size_t n)
return 0;
}
void* memcpy(void* dstp, const void* srcp, size_t n)
__attribute__((optimize("-O0")))
void* memcpy(void* __restrict__ dstp, const void* __restrict__ srcp, size_t n)
{
unsigned char* dst = static_cast<unsigned char*>(dstp);
const unsigned char* src = static_cast<const unsigned char*>(srcp);
@ -45,6 +46,7 @@ void* memmove(void* destp, const void* srcp, size_t n)
return destp;
}
__attribute__((optimize("-O0")))
void* memset(void* s, int c, size_t n)
{
unsigned char* p = static_cast<unsigned char*>(s);