[clang] [compiler-rt] [ubsan_minimal] Allow UBSan handler from Minimal runtime to acceprt arguments (PR #152192)

[Vitaly Buka via llvm-commits]

================
@@ -34,20 +34,25 @@ static char *append_hex(uintptr_t d, char *buf, const char *end) {
   return buf;
 }
 
-static void format_msg(const char *kind, uintptr_t caller, char *buf,
-                       const char *end) {
+static void format_msg(const char *kind, uintptr_t caller,
+                       const uintptr_t *address, char *buf, const char *end) {
   buf = append_str("ubsan: ", buf, end);
   buf = append_str(kind, buf, end);
   buf = append_str(" by 0x", buf, end);
   buf = append_hex(caller, buf, end);
+  if (address) {
+    buf = append_str(" address 0x", buf, end);
+    buf = append_hex(*address, buf, end);
+  }
   buf = append_str("\n", buf, end);
   if (buf == end)
     --buf; // Make sure we don't cause a buffer overflow.
   *buf = '\0';
 }
 
-SANITIZER_INTERFACE_WEAK_DEF(void, __ubsan_report_error, const char *kind,
-                             uintptr_t caller) {
+SANITIZER_INTERFACE_WEAK_DEF(void, __ubsan_minimal_report_error,
+                             const char *kind, uintptr_t caller,
+                             const uintptr_t *address) {
----------------
vitalybuka wrote:

Let's not rename in this patch.

https://github.com/llvm/llvm-project/pull/152192