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--- base/debug/stack_trace_posix.cc.orig 2024-04-19 13:02:56 UTC
+++ base/debug/stack_trace_posix.cc
@@ -41,7 +41,7 @@
// execinfo.h and backtrace(3) are really only present in glibc and in macOS
// libc.
#if BUILDFLAG(IS_APPLE) || \
- (defined(__GLIBC__) && !defined(__UCLIBC__) && !defined(__AIX))
+ (defined(__GLIBC__) && !defined(__UCLIBC__) && !defined(__AIX) && !BUILDFLAG(IS_BSD))
#define HAVE_BACKTRACE
#include <execinfo.h>
#endif
@@ -59,8 +59,10 @@
#include <AvailabilityMacros.h>
#endif
-#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_BSD)
+#if !BUILDFLAG(IS_BSD)
#include <sys/prctl.h>
+#endif
#include "base/debug/proc_maps_linux.h"
#endif
@@ -301,7 +303,7 @@ void PrintToStderr(const char* output) {
std::ignore = HANDLE_EINTR(write(STDERR_FILENO, output, strlen(output)));
}
-#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_CHROMEOS)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_BSD)
void AlarmSignalHandler(int signal, siginfo_t* info, void* void_context) {
// We have seen rare cases on AMD linux where the default signal handler
// either does not run or a thread (Probably an AMD driver thread) prevents
@@ -318,7 +320,11 @@ void AlarmSignalHandler(int signal, siginfo_t* info, v
"Warning: Default signal handler failed to terminate process.\n");
PrintToStderr("Calling exit_group() directly to prevent timeout.\n");
// See: https://man7.org/linux/man-pages/man2/exit_group.2.html
+#if BUILDFLAG(IS_BSD)
+ _exit(EXIT_FAILURE);
+#else
syscall(SYS_exit_group, EXIT_FAILURE);
+#endif
}
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_ANDROID) ||
// BUILDFLAG(IS_CHROMEOS)
@@ -535,7 +541,7 @@ void StackDumpSignalHandler(int signal, siginfo_t* inf
_exit(EXIT_FAILURE);
}
-#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_CHROMEOS)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_BSD)
// Set an alarm to trigger in case the default handler does not terminate
// the process. See 'AlarmSignalHandler' for more details.
struct sigaction action;
@@ -560,6 +566,7 @@ void StackDumpSignalHandler(int signal, siginfo_t* inf
// signals that do not re-raise autonomously), such as signals delivered via
// kill() and asynchronous hardware faults such as SEGV_MTEAERR, which would
// otherwise be lost when re-raising the signal via raise().
+#if !BUILDFLAG(IS_BSD)
long retval = syscall(SYS_rt_tgsigqueueinfo, getpid(), syscall(SYS_gettid),
info->si_signo, info);
if (retval == 0) {
@@ -574,6 +581,7 @@ void StackDumpSignalHandler(int signal, siginfo_t* inf
if (errno != EPERM) {
_exit(EXIT_FAILURE);
}
+#endif
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_ANDROID) ||
// BUILDFLAG(IS_CHROMEOS)
@@ -763,6 +771,7 @@ class SandboxSymbolizeHelper {
return -1;
}
+#if !BUILDFLAG(IS_BSD)
// This class is copied from
// third_party/crashpad/crashpad/util/linux/scoped_pr_set_dumpable.h.
// It aims at ensuring the process is dumpable before opening /proc/self/mem.
@@ -855,11 +864,15 @@ class SandboxSymbolizeHelper {
r.base = cur_base;
}
}
+#endif
// Parses /proc/self/maps in order to compile a list of all object file names
// for the modules that are loaded in the current process.
// Returns true on success.
bool CacheMemoryRegions() {
+#if BUILDFLAG(IS_BSD)
+ return false;
+#else
// Reads /proc/self/maps.
std::string contents;
if (!ReadProcMaps(&contents)) {
@@ -877,6 +890,7 @@ class SandboxSymbolizeHelper {
is_initialized_ = true;
return true;
+#endif
}
// Opens all object files and caches their file descriptors.
|
