Changes imported from Abseil "staging" branch:

- deb12f2a67aafb3568bf83109b6814e69a70473d Add tests to check symbolization with linker flag: -z,kee... by Abseil Team <absl-team@google.com>

GitOrigin-RevId: deb12f2a67aafb3568bf83109b6814e69a70473d
Change-Id: I4139e27395610734ccd21fa80b70b03deff786f8

absl/debugging/symbolize_test.cc

@@ -51,6 +51,28 @@ void ABSL_ATTRIBUTE_NOINLINE Foo::func(int) {
   ABSL_BLOCK_TAIL_CALL_OPTIMIZATION();
 }
 
+// Create functions that will remain in different text sections in the
+// final binary when linker option "-z,keep-text-section-prefix" is used.
+int ABSL_ATTRIBUTE_SECTION_VARIABLE(.text.unlikely) unlikely_func() {
+  return 0;
+}
+
+int ABSL_ATTRIBUTE_SECTION_VARIABLE(.text.hot) hot_func() {
+  return 0;
+}
+
+int ABSL_ATTRIBUTE_SECTION_VARIABLE(.text.startup) startup_func() {
+  return 0;
+}
+
+int ABSL_ATTRIBUTE_SECTION_VARIABLE(.text.exit) exit_func() {
+  return 0;
+}
+
+int ABSL_ATTRIBUTE_SECTION_VARIABLE(.text) regular_func() {
+  return 0;
+}
+
 // Thread-local data may confuse the symbolizer, ensure that it does not.
 // Variable sizes and order are important.
 #if ABSL_PER_THREAD_TLS
@@ -136,6 +158,14 @@ TEST(Symbolize, SymbolizeWithDemangling) {
   EXPECT_STREQ("Foo::func()", TrySymbolize((void *)(&Foo::func)));
 }
 
+TEST(Symbolize, SymbolizeSplitTextSections) {
+  EXPECT_STREQ("unlikely_func()", TrySymbolize((void *)(&unlikely_func)));
+  EXPECT_STREQ("hot_func()", TrySymbolize((void *)(&hot_func)));
+  EXPECT_STREQ("startup_func()", TrySymbolize((void *)(&startup_func)));
+  EXPECT_STREQ("exit_func()", TrySymbolize((void *)(&exit_func)));
+  EXPECT_STREQ("regular_func()", TrySymbolize((void *)(&regular_func)));
+}
+
 // Tests that verify that Symbolize stack footprint is within some limit.
 #ifdef ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION