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Get address sanitizer mostly working

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This commit is contained in:
Justine Tunney 2020-09-03 05:44:37 -07:00
parent 1f1f3cd477
commit 7327c345f9
149 changed files with 3777 additions and 3457 deletions
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11
libc/nexgen32e/memcpy.S
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@ -25,9 +25,8 @@
world's most popular function──one all programmers love.
This implementation is the fastest and nearly the tiniest too.
It doesn't clobber general registers. It won't break down on old
computers or misaligned data. It's so easy that even a child
could use it──and they do.
It doesn't break when copying backwards or on misaligned data.
It's so easy that even a child could use it, and they do.
*/
#include "libc/nexgen32e/x86feature.h"
#include "libc/macros.h"
@ -53,11 +52,10 @@ memcpy: mov %rdi,%rax
/ @param rdi is dest
/ @param rsi is src
/ @param rdx is number of bytes
/ @clob flags,xmm3,xmm4
/ @clob flags,rcx,xmm3,xmm4
/ @mode long
.align 16
MemCpy: .leafprologue
push %rcx
mov $.Lmemcpytab.ro.size,%ecx
cmp %rcx,%rdx
cmovb %rdx,%rcx
@ -95,8 +93,7 @@ MemCpy: .leafprologue
mov %rcx,(%rdi)
mov %rbx,-8(%rdi,%rdx)
1: pop %rbx
.L0: pop %rcx
.leafepilogue
.L0: .leafepilogue
.L4: push %rbx
mov (%rsi),%ecx
mov -4(%rsi,%rdx),%ebx