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ubsan: update wording

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This commit is contained in:
David Rubin
2025-02-24 03:49:45 -08:00
committed by David Rubin
parent 2447b87d98
commit ca83f52fd9
3 changed files with 14 additions and 8 deletions
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lib/ubsan_rt.zig
+8 -5
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@@ -127,6 +127,7 @@ const Value = extern struct {
) !void {
comptime assert(fmt.len == 0);
// Work around x86_64 backend limitation.
if (builtin.zig_backend == .stage2_x86_64 and builtin.os.tag == .windows) {
try writer.writeAll("(unknown)");
return;
@@ -646,6 +647,7 @@ fn exportHandler(
handler: anytype,
comptime sym_name: []const u8,
) void {
// Work around x86_64 backend limitation.
const linkage = if (builtin.zig_backend == .stage2_x86_64 and builtin.os.tag == .windows) .internal else .weak;
const N = "__ubsan_handle_" ++ sym_name;
@export(handler, .{ .name = N, .linkage = linkage });
@@ -656,6 +658,7 @@ fn exportHandlerWithAbort(
abort_handler: anytype,
comptime sym_name: []const u8,
) void {
// Work around x86_64 backend limitation.
const linkage = if (builtin.zig_backend == .stage2_x86_64 and builtin.os.tag == .windows) .internal else .weak;
{
const N = "__ubsan_handle_" ++ sym_name;
@@ -697,12 +700,12 @@ comptime {
exportHandler(&missingReturn, "missing_return");
}
// these checks are nearly impossible to duplicate in zig, as they rely on nuances
// these checks are nearly impossible to replicate in zig, as they rely on nuances
// in the Itanium C++ ABI.
// exportHelper("dynamic_type_cache_miss", "dynamic-type-cache-miss", true);
// exportHelper("vptr_type_cache", "vptr-type-cache", true);
// exportHandlerWithAbort(&dynamicTypeCacheMiss, &dynamicTypeCacheMissAbort, "dynamic-type-cache-miss");
// exportHandlerWithAbort(&vptrTypeCache, &vptrTypeCacheAbort, "vptr-type-cache");
// we disable -fsanitize=function for reasons explained in src/Compilation.zig
// exportHelper("function-type-mismatch", "function_type_mismatch", true);
// exportHelper("function-type-mismatch-v1", "function_type_mismatch_v1", true);
// exportHandlerWithAbort(&functionTypeMismatch, &functionTypeMismatchAbort, "function-type-mismatch");
// exportHandlerWithAbort(&functionTypeMismatchV1, &functionTypeMismatchV1Abort, "function-type-mismatch-v1");
}