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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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26
libc/calls/read.c
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@ -16,9 +16,16 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/iovec.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/sock/internal.h"
#include "libc/sock/sock.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
/**
* Reads data from file descriptor.
@ -32,5 +39,22 @@
* @asyncsignalsafe
*/
ssize_t read(int fd, void *buf, size_t size) {
return readv(fd, &(struct iovec){buf, size}, 1);
if (fd >= 0) {
if (IsAsan() && !__asan_is_valid(buf, size)) return efault();
if (fd < g_fds.n && g_fds.p[fd].kind == kFdZip) {
return weaken(__zipos_read)(
(struct ZiposHandle *)(intptr_t)g_fds.p[fd].handle,
&(struct iovec){buf, size}, 1, -1);
} else if (!IsWindows() && !IsMetal()) {
return sys_read(fd, buf, size);
} else if (fd >= g_fds.n) {
return ebadf();
} else if (IsMetal()) {
return sys_readv_metal(g_fds.p + fd, &(struct iovec){buf, size}, 1);
} else {
return sys_readv_nt(g_fds.p + fd, &(struct iovec){buf, size}, 1);
}
} else {
return einval();
}
}