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LibCoreDump: Don't subtract one from the first stack frame's EIP

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The first stack frame represents the current instruction pointer
rather than the return address so we shouldn't subtract one
from it.

Fixes #8162.
This commit is contained in:
Gunnar Beutner 2021-06-20 02:35:58 +02:00 • committed by Linus Groh
parent 995594b403
commit 25c73159ce
2 changed files with 12 additions and 2 deletions
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7
Userland/Libraries/LibSymbolication/Symbolication.cpp
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@ -148,6 +148,7 @@ Vector<Symbol> symbolicate_thread(pid_t pid, pid_t tid)
}
Vector<Symbol> symbols;
bool first_frame = true;
for (auto address : stack) {
const RegionWithSymbols* found_region = nullptr;
@ -171,7 +172,11 @@ Vector<Symbol> symbolicate_thread(pid_t pid, pid_t tid)
// We're subtracting 1 from the address because this is the return address,
// i.e. it is one instruction past the call instruction.
auto result = symbolicate(found_region->path, adjusted_address - 1);
// However, because the first frame represents the current
// instruction pointer rather than the return address we don't
// subtract 1 for that.
auto result = symbolicate(found_region->path, adjusted_address - (first_frame ? 0 : 1));
first_frame = false;
if (!result.has_value()) {
symbols.append(Symbol {
.address = address,