I'm searching for signals call in a Mach-O mutliarch using radare2. This is what I start with:
file sample
/tmp/sample (for architecture x86_64): Mach-O 64-bit executable x86_64
/tmp/sample (for architecture arm64): Mach-O 64-bit executable arm64
As I'm interested by the arm64 arch, I load the program in radare2 with:
r2 -a arm -b 64 -A sample
Then trying to find the signal calls I'm surprise by the results:
> asl~signal,sigaction
sigaction = 0x80.46
Why is radare2 talking about the 0x80 interruption although arm64 should use svc instruction as stated by man 2 syscall ?
From there how can I find all functions calling a SIGTRAP ?
