zig

commit d1a9bb1fea6491fb9ad4ad7552d8edf816c59aef (tree)
parent a325d7f6d197f7ec1bb6b658075feb8b9e30a264
Author: kcbanner <kcbanner@gmail.com>
Date:   Thu, 25 May 2023 09:52:58 -0400

debug: fixup context detection for wasi

Diffstat:
M
lib/std/debug.zig
 | 
5
+++--

1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/std/debug.zig b/lib/std/debug.zig
@@ -411,7 +411,8 @@ pub const StackIterator = struct {
     // When DebugInfo and a register context is available, this iterator can unwind
     // stacks with frames that don't use a frame pointer (ie. -fomit-frame-pointer).
     debug_info: ?*DebugInfo,
-    dwarf_context: if (@hasDecl(os, "ucontext_t")) DW.UnwindContext else void = undefined,
+    dwarf_context: if (supports_context) DW.UnwindContext else void = undefined,
+    const supports_context = @hasDecl(os.system, "ucontext_t");
 
     pub fn init(first_address: ?usize, fp: ?usize) StackIterator {
         if (native_arch == .sparc64) {
@@ -526,7 +527,7 @@ pub const StackIterator = struct {
     }
 
     fn next_internal(self: *StackIterator) ?usize {
-        if (self.debug_info != null) {
+        if (supports_context and self.debug_info != null) {
             if (self.next_dwarf()) |_| {
                 return self.dwarf_context.pc;
             } else |err| {