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Improve stack overflow recovery

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It's now possible to use sigaltstack() to recover from stack overflows
on Windows. Several bugs in sigaltstack() have been fixed, for all our
supported platforms. There's a newer better example showing how to use
this, along with three independent unit tests just to further showcase
the various techniques.
This commit is contained in:
Justine Tunney 2023-10-04 07:07:43 -07:00
parent 1694edf85c
commit 4631d34d0d
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GPG key ID: BE714B4575D6E328
24 changed files with 590 additions and 274 deletions
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1
libc/log/internal.h
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@ -5,7 +5,6 @@
COSMOPOLITAN_C_START_
extern bool __nocolor;
extern bool _wantcrashreports;
extern bool g_isrunningundermake;
void __start_fatal(const char *, int);

1
libc/log/showcrashreports.c
View file

@ -91,7 +91,6 @@ void ShowCrashReports(void) {
InstallCrashHandler(SIGBUS, SA_RESETHAND);
InstallCrashHandler(SIGABRT, SA_RESETHAND);
InstallCrashHandler(SIGSEGV, SA_RESETHAND | SA_ONSTACK);
_wantcrashreports = true;
}
IGNORE_LEAKS(ShowCrashReports)