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debug: fixup have_getcontext

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kcbanner 2023-07-11 01:06:41 -04:00
parent e5aa2bb224
commit 9b25bee42c
1 changed files with 13 additions and 13 deletions
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26
lib/std/debug.zig
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@ -171,8 +171,10 @@ pub fn relocateContext(context: *ThreadContext) void {
pub const have_getcontext = @hasDecl(os.system, "getcontext") and
(builtin.os.tag != .linux or switch (builtin.cpu.arch) {
.x86, .x86_64 => true,
else => false,
.x86,
.x86_64,
=> true,
else => builtin.link_libc and !builtin.target.isMusl(),
});
/// Capture the current context. The register values in the context will reflect the
@ -652,18 +654,16 @@ pub const StackIterator = struct {
if (self.unwind_state) |*unwind_state| {
if (!unwind_state.failed) {
if (unwind_state.dwarf_context.pc == 0) return null;
if (unwind_state.last_error == null) {
if (self.next_unwind()) |return_address| {
return return_address;
} else |err| {
unwind_state.last_error = err;
unwind_state.failed = true;
if (self.next_unwind()) |return_address| {
return return_address;
} else |err| {
unwind_state.last_error = err;
unwind_state.failed = true;
// Fall back to fp-based unwinding on the first failure.
// We can't attempt it for other modules later in the
// stack because the full register state won't be unwound.
self.fp = unwind_state.dwarf_context.getFp() catch 0;
}
// Fall back to fp-based unwinding on the first failure.
// We can't attempt it for other modules later in the
// stack because the full register state won't be unwound.
self.fp = unwind_state.dwarf_context.getFp() catch 0;
}
}
}