Skip to content

[ubsan_minimal] Add __ubsan_report_error_fatal #138999

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
vitalybuka merged 2 commits into from
May 8, 2025
Merged

[ubsan_minimal] Add __ubsan_report_error_fatal #138999

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
95316c9
[𝘀𝗽𝗿] initial version
vitalybuka May 8, 2025
9f5f52d
another test
vitalybuka May 8, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 7 additions & 1 deletion compiler-rt/lib/ubsan_minimal/ubsan_minimal_handlers.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,12 @@ SANITIZER_INTERFACE_WEAK_DEF(void, __ubsan_report_error, const char *kind,
}
}

SANITIZER_INTERFACE_WEAK_DEF(void, __ubsan_report_error_fatal, const char *kind,
uintptr_t caller) {
// Use another handlers, in case it's already overriden.
__ubsan_report_error(kind, caller);
}

#if defined(__ANDROID__)
extern "C" __attribute__((weak)) void android_set_abort_message(const char *);
static void abort_with_message(const char *kind, uintptr_t caller) {
Expand Down Expand Up @@ -121,7 +127,7 @@ void NORETURN CheckFailed(const char *file, int, const char *cond, u64, u64) {
#define HANDLER_NORECOVER(name, kind) \
INTERFACE void __ubsan_handle_##name##_minimal_abort() { \
uintptr_t caller = GET_CALLER_PC(); \
__ubsan_report_error(kind, caller); \
__ubsan_report_error_fatal(kind, caller); \
abort_with_message(kind, caller); \
}

Expand Down
9 changes: 8 additions & 1 deletion compiler-rt/test/ubsan_minimal/TestCases/override-callback.c
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
// RUN: %clang -fsanitize=implicit-integer-sign-change %s -o %t && %run %t 0 2>&1 | FileCheck %s
// RUN: %clang -fsanitize=implicit-integer-sign-change %s -o %t && %run %t 2>&1 | FileCheck %s
// RUN: %clang -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=all %s -o %t && not --crash %run %t 2>&1 | FileCheck %s --check-prefixes=FATAL

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
Expand All @@ -9,7 +11,12 @@ void __ubsan_report_error(const char *kind, uintptr_t caller) {
fprintf(stderr, "CUSTOM_CALLBACK: %s\n", kind);
}

void __ubsan_report_error_fatal(const char *kind, uintptr_t caller) {
fprintf(stderr, "FATAL_CALLBACK: %s\n", kind);
}

int main(int argc, const char **argv) {
int32_t t0 = (~((uint32_t)0));
// CHECK: CUSTOM_CALLBACK: implicit-conversion
// FATAL: FATAL_CALLBACK: implicit-conversion
}
Loading