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debug: print unwind errors if they occur on the first iteration, and differentiate between missing info and an actual unwind error in the message

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This commit is contained in:
kcbanner 2023-07-23 14:06:35 -04:00
parent 1aacfa7186
commit a84826115f
1 changed files with 11 additions and 1 deletions
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12
lib/std/debug.zig
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@ -252,6 +252,9 @@ pub fn dumpStackTraceFromBase(context: *const ThreadContext) void {
// same behaviour for x86-windows-msvc
const address = if (return_address == 0) return_address else return_address - 1;
printSourceAtAddress(debug_info, stderr, address, tty_config) catch return;
} else {
if (it.getLastError()) |unwind_error|
printUnwindError(debug_info, stderr, unwind_error.address, unwind_error.err, tty_config) catch {};
}
}
}
@ -741,6 +744,9 @@ pub fn writeCurrentStackTrace(
// same behaviour for x86-windows-msvc
const address = if (return_address == 0) return_address else return_address - 1;
try printSourceAtAddress(debug_info, out_stream, address, tty_config);
} else {
if (it.getLastError()) |unwind_error|
try printUnwindError(debug_info, out_stream, unwind_error.address, unwind_error.err, tty_config);
}
}
@ -882,7 +888,11 @@ fn printUnknownSource(debug_info: *DebugInfo, out_stream: anytype, address: usiz
pub fn printUnwindError(debug_info: *DebugInfo, out_stream: anytype, address: usize, err: UnwindError, tty_config: io.tty.Config) !void {
const module_name = debug_info.getModuleNameForAddress(address) orelse "???";
try tty_config.setColor(out_stream, .dim);
try out_stream.print("Unwind information for `{s}:0x{x}` was not available ({}), trace may be incomplete\n\n", .{ module_name, address, err });
if (err == error.MissingDebugInfo) {
try out_stream.print("Unwind information for `{s}:0x{x}` was not available, trace may be incomplete\n\n", .{ module_name, address });
} else {
try out_stream.print("Unwind error at address `{s}:0x{x}` ({}), trace may be incomplete\n\n", .{ module_name, address, err });
}
try tty_config.setColor(out_stream, .reset);
}