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HAL_SITL: catch ubsan errors into a log file

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This commit is contained in:
Andrew Tridgell 2022-07-11 13:30:34 +10:00
parent 88f0a324fd
commit 9b0c8674d6
1 changed files with 42 additions and 0 deletions
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42
libraries/AP_HAL_SITL/Scheduler.cpp
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@ -13,6 +13,9 @@
#include <malloc.h>
#endif
#include <AP_RCProtocol/AP_RCProtocol.h>
#ifdef UBSAN_ENABLED
#include <sanitizer/asan_interface.h>
#endif
using namespace HALSITL;
@ -49,6 +52,45 @@ Scheduler::Scheduler(SITL_State *sitlState) :
{
}
#ifdef UBSAN_ENABLED
/*
catch ubsan errors and append to a log file
*/
extern "C" {
void __ubsan_get_current_report_data(const char **OutIssueKind,
const char **OutMessage,
const char **OutFilename, unsigned *OutLine,
unsigned *OutCol, char **OutMemoryAddr);
void __ubsan_on_report()
{
static int fd = -1;
if (fd == -1) {
const char *ubsan_log_path = getenv("UBSAN_LOG_PATH");
if (ubsan_log_path == nullptr) {
ubsan_log_path = "ubsan.log";
}
if (ubsan_log_path != nullptr) {
fd = open(ubsan_log_path, O_APPEND|O_CREAT|O_WRONLY, 0644);
}
}
if (fd != -1) {
const char *OutIssueKind = nullptr;
const char *OutMessage = nullptr;
const char *OutFilename = nullptr;
unsigned OutLine=0;
unsigned OutCol=0;
char *OutMemoryAddr=nullptr;
__ubsan_get_current_report_data(&OutIssueKind, &OutMessage, &OutFilename,
&OutLine, &OutCol, &OutMemoryAddr);
dprintf(fd, "ubsan error: %s:%u:%u %s:%s\n",
OutFilename, OutLine, OutCol,
OutIssueKind, OutMessage);
}
}
}
#endif
void Scheduler::init()
{
_main_ctx = pthread_self();