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Make signal handling work well across platforms

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- Fix sigsuspend() on XNU
- Fix strsignal() on non-Linux
- Add unit tests for strsignal()
- Add unit tests for setitimer()
- Add unit tests for sigsuspend()
- Rewrite setitimer() for New Technology
- Rewrite nanosleep() for New Technology
- Polyfill SIGALRM on the New Technology
- select(0,0,0,0) on NT now calls pause()
- Remove some NTDLL calls that aren't needed
- Polyfill SA_NOCLDWAIT on the New Technology
- Polyfill SA_RESETHAND on the New Technology
- Polyfill sigprocmask() on the New Technology
- Polyfill SIGCHLD+SIG_IGN on the New Technology
- Polyfill SA_RESTART masking on the New Technology
- Deliver console signals from main thread on New Technology
- Document SA_RESTART behavior w/ @sarestartable / @norestart
- System call trace in MODE=dbg now prints inherited FDs and signal mask
This commit is contained in:
Justine Tunney 2022-03-25 07:11:44 -07:00
parent 3b9e66ecba
commit 072e1d2910
82 changed files with 1388 additions and 450 deletions
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36
libc/calls/uname.c
View file

@ -56,17 +56,33 @@ int uname(struct utsname *lool) {
} else {
bzero(tmp, sizeof(tmp));
if (!IsWindows()) {
if ((rc = sys_uname(tmp)) != -1) {
out = (char *)lool;
for (i = j = 0;;) {
len = strlen(&tmp[j]);
if (len >= sizeof(struct utsname) - i) break;
memcpy(&out[i], &tmp[j], len + 1);
i += SYS_NMLN;
j += len;
while (j < sizeof(tmp) && tmp[j] == '\0') ++j;
if (j == sizeof(tmp)) break;
if (IsLinux() || IsFreebsd()) {
if ((rc = sys_uname(tmp)) != -1) {
out = (char *)lool;
for (i = j = 0;;) {
len = strlen(&tmp[j]);
if (len >= sizeof(struct utsname) - i) break;
memcpy(&out[i], &tmp[j], len + 1);
i += SYS_NMLN;
j += len;
while (j < sizeof(tmp) && tmp[j] == '\0') ++j;
if (j == sizeof(tmp)) break;
}
}
} else if (IsXnu()) {
strcpy(lool->sysname, "XNU's Not UNIX!");
gethostname_bsd(lool->nodename, sizeof(lool->nodename));
rc = 0;
} else if (IsOpenbsd()) {
strcpy(lool->sysname, "OpenBSD");
gethostname_bsd(lool->nodename, sizeof(lool->nodename));
rc = 0;
} else if (IsNetbsd()) {
strcpy(lool->sysname, "NetBSD");
gethostname_bsd(lool->nodename, sizeof(lool->nodename));
rc = 0;
} else {
rc = enosys();
}
} else {
v = NtGetVersion();