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Clean up some code

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- Use good ELF technique in cosmo_dlopen()
- Make strerror() conform more to other libc impls
- Introduce __clear_cache() and use it in cosmo_dlopen()
- Remove libc/fmt/fmt.h header (trying to kill off LIBC_FMT)
This commit is contained in:
Justine Tunney 2023-11-16 16:34:53 -08:00
parent 7010a8081e
commit 68c7c9c1e0
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GPG key ID: BE714B4575D6E328
244 changed files with 378 additions and 588 deletions
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17
libc/intrin/strsignal_r.c
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@ -16,7 +16,6 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/fmt/itoa.h"
#include "libc/fmt/magnumstrs.internal.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sig.h"
@ -26,8 +25,7 @@
*
* This returns `"0"` for 0 which is the empty value. Symbolic names
* should be available for signals 1 through 32. If the system supports
* real-time signals, they're returned as `SIGRTMIN+%d`. For all other
* 32-bit signed integer, a plain integer representation is returned.
* real-time signals, they're returned as `SIGRTMIN+%d`.
*
* @param sig is signal number which should be in range 1 through 128
* @param buf may be used to store output having at least 15 bytes
@ -35,13 +33,14 @@
* @see sigaction()
* @asyncsignalsafe
*/
privileged char *strsignal_r(int sig, char buf[21]) {
privileged const char *strsignal_r(int sig, char buf[21]) {
char *p;
const char *s;
if (!sig) {
return "0";
}
if ((s = GetMagnumStr(kSignalNames, sig))) {
return (char *)s;
return s;
}
if (SIGRTMIN <= sig && sig <= SIGRTMAX) {
sig -= SIGRTMIN;
@ -54,9 +53,13 @@ privileged char *strsignal_r(int sig, char buf[21]) {
buf[6] = 'I';
buf[7] = 'N';
buf[8] = '+';
FormatInt32(buf + 9, sig);
p = buf + 9;
} else {
FormatInt32(buf, sig);
p = buf;
}
if (sig >= 100) *p++ = '0' + (unsigned char)sig / 100 % 10;
if (sig >= 10) *p++ = '0' + (unsigned char)sig / 10 % 10;
*p++ = '0' + (unsigned char)sig % 10;
*p = 0;
return buf;
}