RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 09:38:11 +00:00
Code Issues Activity Actions

Kernel: Add optional userspace backtrace to Process::crash

Browse source 
This is very useful for debugging the initial userspace applications, as
the CrashReporter is not yet running.
This commit is contained in:
Timon Kruiper 2023-01-30 12:10:29 +01:00 • committed by Linus Groh
parent 3611427ce2
commit 3295137224
6 changed files with 23 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

18
Kernel/Process.cpp
View file

@ -456,11 +456,13 @@ void create_signal_trampoline()
g_signal_trampoline_region->remap();
}
void Process::crash(int signal, FlatPtr ip, bool out_of_memory)
void Process::crash(int signal, Optional<RegisterState const&> regs, bool out_of_memory)
{
VERIFY(!is_dead());
VERIFY(&Process::current() == this);
auto ip = regs.has_value() ? regs->ip() : 0;
if (out_of_memory) {
dbgln("\033[31;1mOut of memory\033[m, killing: {}", *this);
} else {
@ -470,6 +472,20 @@ void Process::crash(int signal, FlatPtr ip, bool out_of_memory)
} else {
dbgln("\033[31;1m{:p} (?)\033[0m\n", ip);
}
#if ARCH(X86_64)
constexpr bool userspace_backtrace = false;
#elif ARCH(AARCH64)
constexpr bool userspace_backtrace = true;
#else
# error "Unknown architecture"
#endif
if constexpr (userspace_backtrace) {
dbgln("Userspace backtrace:");
auto bp = regs.has_value() ? regs->bp() : 0;
dump_backtrace_from_base_pointer(bp);
}
dbgln("Kernel backtrace:");
dump_backtrace();
}
with_mutable_protected_data([&](auto& protected_data) {