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Delete LIBC_CALLS_HEFTY

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- fork() no longer requires malloc()
- readdir() moved to LIBC_STDIO
- Custom APIs moved to LIBC_X
This commit is contained in:
Justine Tunney 2021-02-02 22:17:53 -08:00
parent c843243322
commit 23a14b537c
44 changed files with 95 additions and 168 deletions
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10
libc/log/backtrace2.c
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@ -48,7 +48,6 @@ static int PrintBacktraceUsingAddr2line(int fd, const struct StackFrame *bp) {
struct Garbages *garbage;
sigset_t chldmask, savemask;
const struct StackFrame *frame;
struct sigaction ignore, saveint, savequit;
const char *debugbin, *p1, *p2, *p3, *addr2line;
char buf[kBacktraceBufSize], *argv[kBacktraceMaxFrames];
if (IsOpenbsd()) return -1;
@ -77,18 +76,11 @@ static int PrintBacktraceUsingAddr2line(int fd, const struct StackFrame *bp) {
j += uint64toarray_radix16(addr - 1, buf + j) + 1;
}
argv[i++] = NULL;
ignore.sa_flags = 0;
ignore.sa_handler = SIG_IGN;
sigemptyset(&ignore.sa_mask);
sigaction(SIGINT, &ignore, &saveint);
sigaction(SIGQUIT, &ignore, &savequit);
sigemptyset(&chldmask);
sigaddset(&chldmask, SIGCHLD);
sigprocmask(SIG_BLOCK, &chldmask, &savemask);
pipe(pipefds);
if (!(pid = vfork())) {
sigaction(SIGINT, &saveint, NULL);
sigaction(SIGQUIT, &savequit, NULL);
sigprocmask(SIG_SETMASK, &savemask, NULL);
dup2(pipefds[1], 1);
close(pipefds[0]);
@ -124,8 +116,6 @@ static int PrintBacktraceUsingAddr2line(int fd, const struct StackFrame *bp) {
if (errno == EINTR) continue;
return -1;
}
sigaction(SIGINT, &saveint, NULL);
sigaction(SIGQUIT, &savequit, NULL);
sigprocmask(SIG_SETMASK, &savemask, NULL);
if (WIFEXITED(ws) && !WEXITSTATUS(ws)) {
return 0;