[ASan] Moved optimized callbacks out of asan_static to avoid DSO size increase.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D121405

Author: kstoimenov

clang/lib/Driver/ToolChains/CommonArgs.cpp

@@ -842,10 +842,6 @@ collectSanitizerRuntimes(const ToolChain &TC, const ArgList &Args,
   if (SanArgs.needsStatsRt() && SanArgs.linkRuntimes())
     StaticRuntimes.push_back("stats_client");
 
-  // Always link the static runtime regardless of DSO or executable.
-  if (SanArgs.needsAsanRt())
-    HelperStaticRuntimes.push_back("asan_static");
-
   // Collect static runtimes.
   if (Args.hasArg(options::OPT_shared)) {
     // Don't link static runtimes into DSOs.

clang/test/Driver/sanitizer-ld.c

@@ -30,7 +30,6 @@
 // RUN:     --sysroot=%S/Inputs/basic_linux_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-ASAN-EXECUTABLE-LINUX %s
 //
-// CHECK-ASAN-EXECUTABLE-LINUX: libclang_rt.asan_static-x86_64
 // CHECK-ASAN-EXECUTABLE-LINUX: libclang_rt.asan-x86_64
 
 // RUN: %clang -fsanitize=address -shared %s -### -o %t.o 2>&1  \
@@ -39,7 +38,6 @@
 // RUN:     --sysroot=%S/Inputs/basic_linux_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-ASAN-SHARED-LINUX %s
 //
-// CHECK-ASAN-SHARED-LINUX: libclang_rt.asan_static-x86_64
 // CHECK-ASAN-SHARED-LINUX-NOT: libclang_rt.asan-x86_64
 
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \

compiler-rt/lib/asan/CMakeLists.txt

@@ -34,6 +34,7 @@ set(ASAN_SOURCES
 
 if (NOT WIN32 AND NOT APPLE)
   list(APPEND ASAN_SOURCES
+    asan_rtl_x86_64.S
     asan_interceptors_vfork.S
     )
 endif()
@@ -48,7 +49,6 @@ set(ASAN_STATIC_SOURCES
 
 if (NOT WIN32 AND NOT APPLE)
   list(APPEND ASAN_STATIC_SOURCES
-    asan_rtl_x86_64.S
   )
 endif()
 

compiler-rt/lib/asan/asan_rtl_x86_64.S

@@ -42,7 +42,7 @@ CLABEL(reg, op, 1, i): ;\
         pop    %rcx ;\
         jl     RLABEL(reg, op, 1, i);\
         mov    %##reg,%rdi ;\
-        jmp    __asan_report_##op##1_asm ;\
+        jmp    __asan_report_##op##1 ;\
 
 #define ASAN_MEMORY_ACCESS_EXTRA_CHECK_2(reg, op, i) \
 CLABEL(reg, op, 2, i): ;\
@@ -54,7 +54,7 @@ CLABEL(reg, op, 2, i): ;\
         pop    %rcx ;\
         jl     RLABEL(reg, op, 2, i);\
         mov    %##reg,%rdi ;\
-        jmp    __asan_report_##op##2_asm ;\
+        jmp    __asan_report_##op##2 ;\
 
 #define ASAN_MEMORY_ACCESS_EXTRA_CHECK_4(reg, op, i) \
 CLABEL(reg, op, 4, i): ;\
@@ -66,7 +66,7 @@ CLABEL(reg, op, 4, i): ;\
         pop    %rcx ;\
         jl     RLABEL(reg, op, 4, i);\
         mov    %##reg,%rdi ;\
-        jmp    __asan_report_##op##4_asm ;\
+        jmp    __asan_report_##op##4 ;\
 
 #define ASAN_MEMORY_ACCESS_CALLBACK_ADD_1(reg, op) \
 BEGINF(reg, op, 1, add) ;\
@@ -97,7 +97,7 @@ ENDF
 #define ASAN_MEMORY_ACCESS_FAIL(reg, op, s, i) \
 FLABEL(reg, op, s, i): ;\
         mov    %##reg,%rdi ;\
-        jmp    __asan_report_##op##s##_asm;\
+        jmp    __asan_report_##op##s##;\
 
 #define ASAN_MEMORY_ACCESS_CALLBACK_ADD_8(reg, op) \
 BEGINF(reg, op, 8, add) ;\