No line number information printed on Mac OS X

[emeryberger]

Description of issue

Neither automatic (linking with backward.cpp and printing a stack trace on SEGV) or manual (programmatically using StackTrace and TraceResolver) produce line numbers, even when compiling with -O0 -g. Verified on Catalina and Monterey, clang 12 and 13, x86 and M1. I'm not sure if this is a known limitation on Mac OS X.

To reproduce

Compile this program as testme.cpp with the command line clang++ -O0 -g -std=c++17 testme.cpp backward.cpp, then run a.out:

void baz() {
  int * p = nullptr;
  *p = 42;
}

void bar() {
  baz();
}

void foo() {
  bar();
}

int main() {
  foo();
}

Actual output

Stack trace (most recent call last):
#8    Object "a.out", at 0x1048da83b, in main + 11
#7    Object "a.out", at 0x1048da827, in foo() + 11
#6    Object "a.out", at 0x1048da813, in bar() + 11
#5    Object "libsystem_platform.dylib", at 0x19b63c4e3, in _sigtramp + 55
#4    Object "a.out", at 0x1048dbb27, in backward::SignalHandling::sig_handler(int, __siginfo*, void*) + 39
#3    Object "a.out", at 0x1048dbdb7, in backward::SignalHandling::handleSignal(int, __siginfo*, void*) + 95
#2    Object "a.out", at 0x1048dbeb3, in backward::StackTraceImpl<backward::system_tag::darwin_tag>::load_from(void*, unsigned long, void*, void*) + 59
#1    Object "a.out", at 0x1048dbfff, in backward::StackTraceImpl<backward::system_tag::darwin_tag>::load_here(unsigned long, void*, void*) + 119
#0    Object "a.out", at 0x1048dd907, in unsigned long backward::details::unwind<backward::StackTraceImpl<backward::system_tag::darwin_tag>::callback>(backward::StackTraceImpl<backward::system_tag::darwin_tag>::callback, unsigned long) + 39

Expected output

Line numbers for each frame.

[QiangZiBro]

I also got such a problem, by installing binutils-dev on ubuntu, the lines can be shown, but on Mac OS X not.

[rollysys]

I have the same issue on my 2023 M2 macbook pro