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Restart CI for New Technology and UBSAN hunting

Browse source 
Continuous Integration (via runit and runitd) is now re-enabled on win7
and win10. The `make test` command, which runs the tests on all systems
is now the fastest and most stable it's been since the project started.

UBSAN is now enabled in MODE=dbg in addition to ASAN. Many instances of
undefined behavior have been removed. Mostly things like passing a NULL
argument to memcpy(), which works fine with Cosmopolitan Libc, but that
doesn't prevents the compiler from being unhappy. There was an issue w/
GNU make where static analysis claims a sprintf() call can overflow. We
also now have nicer looking crash reports on Windows since uname should
now be supported and msys64 addr2line works reliably.
This commit is contained in:
Justine Tunney 2022-03-21 03:46:16 -07:00
parent d5ff2c3fb9
commit 5e8ae2d5bc
80 changed files with 506 additions and 249 deletions
Download patch file Download diff file Expand all files Collapse all files

38
libc/calls/wincrash.c
View file

@ -24,9 +24,10 @@
#include "libc/nt/enum/signal.h"
#include "libc/nt/struct/ntexceptionpointers.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sicode.h"
textwindows unsigned __wincrash(struct NtExceptionPointers *ep) {
int sig, rva;
int sig, rva, code;
struct Goodies {
ucontext_t ctx;
struct siginfo si;
@ -34,44 +35,69 @@ textwindows unsigned __wincrash(struct NtExceptionPointers *ep) {
STRACE("__wincrash");
switch (ep->ExceptionRecord->ExceptionCode) {
case kNtSignalBreakpoint:
code = TRAP_BRKPT;
sig = SIGTRAP;
break;
case kNtSignalIllegalInstruction:
code = ILL_ILLOPC;
sig = SIGILL;
break;
case kNtSignalPrivInstruction:
code = ILL_PRVOPC;
sig = SIGILL;
break;
case kNtSignalGuardPage:
case kNtSignalAccessViolation:
case kNtSignalInPageError:
code = SEGV_MAPERR;
sig = SIGSEGV;
break;
case kNtSignalAccessViolation:
code = SEGV_ACCERR;
sig = SIGSEGV;
break;
case kNtSignalInvalidHandle:
case kNtSignalInvalidParameter:
case kNtSignalAssertionFailure:
code = SI_USER;
sig = SIGABRT;
break;
case kNtSignalFltDenormalOperand:
case kNtSignalFltDivideByZero:
case kNtSignalFltInexactResult:
case kNtSignalFltInvalidOperation:
code = FPE_FLTDIV;
sig = SIGFPE;
break;
case kNtSignalFltOverflow:
case kNtSignalFltStackCheck:
code = FPE_FLTOVF;
sig = SIGFPE;
break;
case kNtSignalFltUnderflow:
code = FPE_FLTUND;
sig = SIGFPE;
break;
case kNtSignalFltInexactResult:
code = FPE_FLTRES;
sig = SIGFPE;
break;
case kNtSignalFltDenormalOperand:
case kNtSignalFltInvalidOperation:
case kNtSignalFltStackCheck:
case kNtSignalIntegerDivideByZero:
case kNtSignalFloatMultipleFaults:
case kNtSignalFloatMultipleTraps:
code = FPE_FLTINV;
sig = SIGFPE;
break;
case kNtSignalDllNotFound:
case kNtSignalOrdinalNotFound:
case kNtSignalEntrypointNotFound:
case kNtSignalDllInitFailed:
code = SI_KERNEL;
sig = SIGSYS;
break;
default:
return kNtExceptionContinueSearch;
}
bzero(&g, sizeof(g));
g.si.si_code = code;
rva = __sighandrvas[sig];
if (rva >= kSigactionMinRva) {
ntcontext2linux(&g.ctx, ep->ContextRecord);