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Add MODE=optlinux build mode (#141)

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This commit is contained in:
Justine Tunney 2021-10-14 19:36:49 -07:00
parent 226aaf3547
commit 67b5200a0b
111 changed files with 934 additions and 854 deletions
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15
libc/runtime/munmap.c
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@ -20,6 +20,7 @@
#include "libc/calls/internal.h"
#include "libc/calls/sysdebug.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/intrin/asan.internal.h"
#include "libc/log/libfatal.internal.h"
#include "libc/macros.internal.h"
@ -32,7 +33,6 @@
#define IP(X) (intptr_t)(X)
#define SMALL(n) ((n) <= 0xffffffffffff)
#define ALIGNED(p) (!(IP(p) & (FRAMESIZE - 1)))
#define LEGAL(p) (-0x800000000000 <= IP(p) && IP(p) <= 0x7fffffffffff)
#define ADDR(x) ((int64_t)((uint64_t)(x) << 32) >> 16)
#define SHADE(x) (((intptr_t)(x) >> 3) + 0x7fff8000)
#define FRAME(x) ((int)((intptr_t)(x) >> 16))
@ -64,11 +64,11 @@ noasan int munmap(void *v, size_t n) {
SYSDEBUG("munmap(0x%p, 0x%x) EINVAL (n isn't 48-bit)", p, n);
return einval();
}
if (UNLIKELY(!LEGAL(p))) {
if (UNLIKELY(!IsLegalPointer(p))) {
SYSDEBUG("munmap(0x%p, 0x%x) EINVAL (p isn't 48-bit)", p, n);
return einval();
}
if (UNLIKELY(!LEGAL(p + (n - 1)))) {
if (UNLIKELY(!IsLegalPointer(p + (n - 1)))) {
SYSDEBUG("munmap(0x%p, 0x%x) EINVAL (p+(n-1) isn't 48-bit)", p, n);
return einval();
}
@ -80,7 +80,6 @@ noasan int munmap(void *v, size_t n) {
SYSDEBUG("munmap(0x%p, 0x%x) EFAULT (interval not tracked)", p, n);
return efault();
}
SYSDEBUG("munmap(0x%p, 0x%x)", p, n);
if (UntrackMemoryIntervals(p, n) != -1) {
if (!IsWindows()) {
rc = sys_munmap(p, n);
@ -105,11 +104,13 @@ noasan int munmap(void *v, size_t n) {
}
}
}
return rc;
} else {
return 0; /* UntrackMemoryIntervals does it for NT */
rc = 0; /* UntrackMemoryIntervals does it for NT */
}
} else {
return -1;
rc = -1;
}
SYSDEBUG("munmap(0x%p, 0x%x) -> %d %s", p, n, (long)rc,
rc == -1 ? strerror(errno) : "");
return rc;
}