gcc/0016-libsanitizer-fix-isoc23-function-interception.patch

From add6d92567cfdc16e0acfaf73fb4b8cbc213661f Mon Sep 17 00:00:00 2001
From: swcompiler <lc@wxiat.com>
Date: Mon, 25 Nov 2024 17:15:16 +0800
Subject: [PATCH 16/16] libsanitizer: fix isoc23 function interception for
 glibc-2.38

---
 libsanitizer/asan/asan_interceptors.cpp | 55 +++++++++++++++----------
 1 file changed, 33 insertions(+), 22 deletions(-)

diff --git a/libsanitizer/asan/asan_interceptors.cpp b/libsanitizer/asan/asan_interceptors.cpp
index b28909152..ae1c9bfcb 100644
--- a/libsanitizer/asan/asan_interceptors.cpp
+++ b/libsanitizer/asan/asan_interceptors.cpp
@@ -41,6 +41,8 @@
 #    define ASAN_PTHREAD_CREATE_VERSION "GLIBC_2.1"
 #  elif defined(__mips__) && SANITIZER_LINUX
 #    define ASAN_PTHREAD_CREATE_VERSION "GLIBC_2.2"
+#  elif defined(__sw_64__)
+#    define ASAN_PTHREAD_CREATE_VERSION "GLIBC_2.1"
 #  endif
 
 namespace __asan {
@@ -472,19 +474,32 @@ INTERCEPTOR(char*, strncpy, char *to, const char *from, uptr size) {
   return REAL(strncpy)(to, from, size);
 }
 
-INTERCEPTOR(long, strtol, const char *nptr, char **endptr, int base) {
-  void *ctx;
-  ASAN_INTERCEPTOR_ENTER(ctx, strtol);
-  ENSURE_ASAN_INITED();
-  if (!flags()->replace_str) {
-    return REAL(strtol)(nptr, endptr, base);
-  }
+template <typename Fn>
+static ALWAYS_INLINE auto StrtolImpl(void *ctx, Fn real, const char *nptr,
+                                     char **endptr, int base)
+    -> decltype(real(nullptr, nullptr, 0)) {
+  if (!flags()->replace_str)
+    return real(nptr, endptr, base);
   char *real_endptr;
-  long result = REAL(strtol)(nptr, &real_endptr, base);
+  auto res = real(nptr, &real_endptr, base);
   StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
-  return result;
+  return res;
 }
 
+#  define INTERCEPTOR_STRTO_BASE(ret_type, func)                             \
+    INTERCEPTOR(ret_type, func, const char *nptr, char **endptr, int base) { \
+      void *ctx;                                                             \
+      ASAN_INTERCEPTOR_ENTER(ctx, func);                                     \
+      ENSURE_ASAN_INITED();                                                  \
+      return StrtolImpl(ctx, REAL(func), nptr, endptr, base);                \
+    }
+
+INTERCEPTOR_STRTO_BASE(long, strtol)
+
+#if SANITIZER_GLIBC
+INTERCEPTOR_STRTO_BASE(long, __isoc23_strtol)
+#endif
+
 INTERCEPTOR(int, atoi, const char *nptr) {
   void *ctx;
   ASAN_INTERCEPTOR_ENTER(ctx, atoi);
@@ -524,18 +539,11 @@ INTERCEPTOR(long, atol, const char *nptr) {
 }
 
 #if ASAN_INTERCEPT_ATOLL_AND_STRTOLL
-INTERCEPTOR(long long, strtoll, const char *nptr, char **endptr, int base) {
-  void *ctx;
-  ASAN_INTERCEPTOR_ENTER(ctx, strtoll);
-  ENSURE_ASAN_INITED();
-  if (!flags()->replace_str) {
-    return REAL(strtoll)(nptr, endptr, base);
-  }
-  char *real_endptr;
-  long long result = REAL(strtoll)(nptr, &real_endptr, base);
-  StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
-  return result;
-}
+INTERCEPTOR_STRTO_BASE(long long, strtoll)
+
+#if SANITIZER_GLIBC
+INTERCEPTOR_STRTO_BASE(long long, __isoc23_strtoll)
+#endif
 
 INTERCEPTOR(long long, atoll, const char *nptr) {
   void *ctx;
@@ -639,7 +647,10 @@ void InitializeAsanInterceptors() {
   ASAN_INTERCEPT_FUNC(atoll);
   ASAN_INTERCEPT_FUNC(strtoll);
 #endif
-
+#if SANITIZER_GLIBC
+  ASAN_INTERCEPT_FUNC(__isoc23_strtol);
+  ASAN_INTERCEPT_FUNC(__isoc23_strtoll);
+#endif
   // Intecept jump-related functions.
   ASAN_INTERCEPT_FUNC(longjmp);
 
-- 
2.25.1