[compiler-rt] caaafe4 - [compiler-rt][builtins] Revert all the recent changes I made for adding

Akira Hatanaka via llvm-commits llvm-commits at lists.llvm.org
Thu Aug 25 13:38:01 PDT 2022


Author: Akira Hatanaka
Date: 2022-08-25T13:37:36-07:00
New Revision: caaafe4ae250cdb24d69e0478710b2a01844ee7e

URL: https://github.com/llvm/llvm-project/commit/caaafe4ae250cdb24d69e0478710b2a01844ee7e
DIFF: https://github.com/llvm/llvm-project/commit/caaafe4ae250cdb24d69e0478710b2a01844ee7e.diff

LOG: [compiler-rt][builtins] Revert all the recent changes I made for adding
security-related compiler flags

The changes broke Fuchsia builders.

Added: 
    

Modified: 
    compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
    compiler-rt/cmake/Modules/CompilerRTUtils.cmake
    compiler-rt/cmake/config-ix.cmake
    compiler-rt/include/profile/InstrProfData.inc
    compiler-rt/lib/builtins/CMakeLists.txt
    compiler-rt/lib/builtins/eprintf.c
    compiler-rt/lib/profile/InstrProfiling.c
    compiler-rt/lib/profile/InstrProfilingWriter.c

Removed: 
    


################################################################################
diff  --git a/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake b/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
index 57e913ad81c8a..2c9983c6a1ae3 100644
--- a/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
+++ b/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
@@ -413,12 +413,6 @@ macro(darwin_add_builtin_libraries)
                       ../profile/InstrProfilingInternal.c
                       ../profile/InstrProfilingVersionVar.c)
   foreach (os ${ARGN})
-    set(macosx_sdk_version 0)
-    if ("${os}" STREQUAL "osx")
-      find_darwin_sdk_version(macosx_sdk_version "macosx")
-    endif()
-    add_security_warnings(CFLAGS ${macosx_sdk_version})
-
     list_intersect(DARWIN_BUILTIN_ARCHS DARWIN_${os}_BUILTIN_ARCHS BUILTIN_SUPPORTED_ARCH)
 
     if((arm64 IN_LIST DARWIN_BUILTIN_ARCHS OR arm64e IN_LIST DARWIN_BUILTIN_ARCHS) AND NOT TARGET lse_builtin_symlinks)

diff  --git a/compiler-rt/cmake/Modules/CompilerRTUtils.cmake b/compiler-rt/cmake/Modules/CompilerRTUtils.cmake
index d57f4d28eb23c..9b5e03a6607ba 100644
--- a/compiler-rt/cmake/Modules/CompilerRTUtils.cmake
+++ b/compiler-rt/cmake/Modules/CompilerRTUtils.cmake
@@ -593,33 +593,3 @@ function(add_compiler_rt_install_targets name)
     endif()
   endif()
 endfunction()
-
-# Add warnings to catch potential errors that can lead to security
-# vulnerabilities.
-function(add_security_warnings out_flags macosx_sdk_version)
-  set(flags "${${out_flags}}")
-
-  append_list_if(COMPILER_RT_HAS_ARRAY_BOUNDS_FLAG -Werror=array-bounds flags)
-  append_list_if(COMPILER_RT_HAS_UNINITIALIZED_FLAG -Werror=uninitialized flags)
-  append_list_if(COMPILER_RT_HAS_SHADOW_FLAG -Werror=shadow flags)
-  append_list_if(COMPILER_RT_HAS_EMPTY_BODY_FLAG -Werror=empty-body flags)
-  append_list_if(COMPILER_RT_HAS_SIZEOF_POINTER_MEMACCESS_FLAG -Werror=sizeof-pointer-memaccess flags)
-  append_list_if(COMPILER_RT_HAS_SIZEOF_ARRAY_ARGUMENT_FLAG -Werror=sizeof-array-argument flags)
-  append_list_if(COMPILER_RT_HAS_MEMSET_TRANSPOSED_ARGS_FLAG -Werror=memset-transposed-args flags)
-  append_list_if(COMPILER_RT_HAS_BUILTIN_MEMCPY_CHK_SIZE_FLAG -Werror=builtin-memcpy-chk-size flags)
-  append_list_if(COMPILER_RT_HAS_ARRAY_BOUNDS_POINTER_ARITHMETIC_FLAG -Werror=array-bounds-pointer-arithmetic flags)
-  append_list_if(COMPILER_RT_HAS_RETURN_STACK_ADDRESS_FLAG -Werror=return-stack-address flags)
-  append_list_if(COMPILER_RT_HAS_SIZEOF_ARRAY_DECAY_FLAG -Werror=sizeof-array-decay flags)
-  append_list_if(COMPILER_RT_HAS_FORMAT_INSUFFICIENT_ARGS_FLAG -Werror=format-insufficient-args flags)
-  append_list_if(COMPILER_RT_HAS_BUILTIN_FORMAL_SECURITY_FLAG -Werror=format-security flags)
-
-  # Add -Wformat-nonliteral only if we can avoid adding the defintion of
-  # eprintf. On Apple platforms, eprintf is needed only on macosx and only if
-  # its version is older than 10.7.
-  if ("${macosx_sdk_version}" VERSION_GREATER_EQUAL 10.7 OR
-      "${macosx_sdk_version}" EQUAL 0)
-    list(APPEND flags -Werror=format-nonliteral -DDONT_DEFINE_EPRINTF)
-  endif()
-
-  set(${out_flags} "${flags}" PARENT_SCOPE)
-endfunction()

diff  --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
index a1f8a200ef3be..afa3596b1aa79 100644
--- a/compiler-rt/cmake/config-ix.cmake
+++ b/compiler-rt/cmake/config-ix.cmake
@@ -137,20 +137,6 @@ check_cxx_compiler_flag(/wd4391 COMPILER_RT_HAS_WD4391_FLAG)
 check_cxx_compiler_flag(/wd4722 COMPILER_RT_HAS_WD4722_FLAG)
 check_cxx_compiler_flag(/wd4800 COMPILER_RT_HAS_WD4800_FLAG)
 
-check_cxx_compiler_flag(-Warray-bounds COMPILER_RT_HAS_ARRAY_BOUNDS_FLAG)
-check_cxx_compiler_flag(-Wuninitialized COMPILER_RT_HAS_UNINITIALIZED_FLAG)
-check_cxx_compiler_flag(-Wshadow COMPILER_RT_HAS_SHADOW_FLAG)
-check_cxx_compiler_flag(-Wempty-body COMPILER_RT_HAS_EMPTY_BODY_FLAG)
-check_cxx_compiler_flag(-Wsizeof-pointer-memaccess COMPILER_RT_HAS_SIZEOF_POINTER_MEMACCESS_FLAG)
-check_cxx_compiler_flag(-Wsizeof-array-argument COMPILER_RT_HAS_SIZEOF_ARRAY_ARGUMENT_FLAG)
-check_cxx_compiler_flag(-Wmemset-transposed-args COMPILER_RT_HAS_MEMSET_TRANSPOSED_ARGS_FLAG)
-check_cxx_compiler_flag(-Wbuiltin-memcpy-chk-size COMPILER_RT_HAS_BUILTIN_MEMCPY_CHK_SIZE_FLAG)
-check_cxx_compiler_flag(-Warray-bounds-pointer-arithmetic COMPILER_RT_HAS_ARRAY_BOUNDS_POINTER_ARITHMETIC_FLAG)
-check_cxx_compiler_flag(-Wreturn-stack-address COMPILER_RT_HAS_RETURN_STACK_ADDRESS_FLAG)
-check_cxx_compiler_flag(-Wsizeof-array-decay COMPILER_RT_HAS_SIZEOF_ARRAY_DECAY_FLAG)
-check_cxx_compiler_flag(-Wformat-insufficient-args COMPILER_RT_HAS_FORMAT_INSUFFICIENT_ARGS_FLAG)
-check_cxx_compiler_flag(-Wformat-security COMPILER_RT_HAS_BUILTIN_FORMAL_SECURITY_FLAG)
-
 # Symbols.
 check_symbol_exists(__func__ "" COMPILER_RT_HAS_FUNC_SYMBOL)
 

diff  --git a/compiler-rt/include/profile/InstrProfData.inc b/compiler-rt/include/profile/InstrProfData.inc
index a92f5f62b18af..282620d8b5dc0 100644
--- a/compiler-rt/include/profile/InstrProfData.inc
+++ b/compiler-rt/include/profile/InstrProfData.inc
@@ -129,10 +129,10 @@ INSTR_PROF_RAW_HEADER(uint64_t, Magic, __llvm_profile_get_magic())
 INSTR_PROF_RAW_HEADER(uint64_t, Version, __llvm_profile_get_version())
 INSTR_PROF_RAW_HEADER(uint64_t, BinaryIdsSize, __llvm_write_binary_ids(NULL))
 /* FIXME: A more accurate name is NumData */
-INSTR_PROF_RAW_HEADER(uint64_t, DataSize, DataSizeInitVal)
+INSTR_PROF_RAW_HEADER(uint64_t, DataSize, DataSize)
 INSTR_PROF_RAW_HEADER(uint64_t, PaddingBytesBeforeCounters, PaddingBytesBeforeCounters)
 /* FIXME: A more accurate name is NumCounters */
-INSTR_PROF_RAW_HEADER(uint64_t, CountersSize, CountersSizeInitVal)
+INSTR_PROF_RAW_HEADER(uint64_t, CountersSize, CountersSize)
 INSTR_PROF_RAW_HEADER(uint64_t, PaddingBytesAfterCounters, PaddingBytesAfterCounters)
 INSTR_PROF_RAW_HEADER(uint64_t, NamesSize,  NamesSize)
 INSTR_PROF_RAW_HEADER(uint64_t, CountersDelta,

diff  --git a/compiler-rt/lib/builtins/CMakeLists.txt b/compiler-rt/lib/builtins/CMakeLists.txt
index 8baf4f51a5888..bbba2497fce30 100644
--- a/compiler-rt/lib/builtins/CMakeLists.txt
+++ b/compiler-rt/lib/builtins/CMakeLists.txt
@@ -699,7 +699,6 @@ if (APPLE)
   darwin_add_builtin_libraries(${BUILTIN_SUPPORTED_OS})
 else ()
   set(BUILTIN_CFLAGS "")
-  add_security_warnings(BUILTIN_CFLAGS -1)
 
   if (COMPILER_RT_HAS_FCF_PROTECTION_FLAG)
     append_list_if(COMPILER_RT_ENABLE_CET -fcf-protection=full BUILTIN_CFLAGS)

diff  --git a/compiler-rt/lib/builtins/eprintf.c b/compiler-rt/lib/builtins/eprintf.c
index daf90b4993eca..89fb0e315b2ee 100644
--- a/compiler-rt/lib/builtins/eprintf.c
+++ b/compiler-rt/lib/builtins/eprintf.c
@@ -15,7 +15,6 @@
 //
 // It should never be exported from a dylib, so it is marked
 // visibility hidden.
-#ifndef DONT_DEFINE_EPRINTF
 #ifndef _WIN32
 __attribute__((visibility("hidden")))
 #endif
@@ -26,4 +25,3 @@ __eprintf(const char *format, const char *assertion_expression,
   fflush(stderr);
   compilerrt_abort();
 }
-#endif

diff  --git a/compiler-rt/lib/profile/InstrProfiling.c b/compiler-rt/lib/profile/InstrProfiling.c
index fdb7b7cd806ce..4bf8463f1ef9c 100644
--- a/compiler-rt/lib/profile/InstrProfiling.c
+++ b/compiler-rt/lib/profile/InstrProfiling.c
@@ -64,11 +64,11 @@ COMPILER_RT_VISIBILITY void __llvm_profile_reset_counters(void) {
       CurrentVSiteCount += DI->NumValueSites[VKI];
 
     for (i = 0; i < CurrentVSiteCount; ++i) {
-      ValueProfNode *CurrVNode = ValueCounters[i];
+      ValueProfNode *CurrentVNode = ValueCounters[i];
 
-      while (CurrVNode) {
-        CurrVNode->Count = 0;
-        CurrVNode = CurrVNode->Next;
+      while (CurrentVNode) {
+        CurrentVNode->Count = 0;
+        CurrentVNode = CurrentVNode->Next;
       }
     }
   }

diff  --git a/compiler-rt/lib/profile/InstrProfilingWriter.c b/compiler-rt/lib/profile/InstrProfilingWriter.c
index 1209f753773b6..800103d199ab0 100644
--- a/compiler-rt/lib/profile/InstrProfilingWriter.c
+++ b/compiler-rt/lib/profile/InstrProfilingWriter.c
@@ -291,8 +291,8 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin,
     // TODO: Unfortunately the header's fields are named DataSize and
     // CountersSize when they should be named NumData and NumCounters,
     // respectively.
-    const uint64_t CountersSizeInitVal = NumCounters;
-    const uint64_t DataSizeInitVal = NumData;
+    const uint64_t CountersSize = NumCounters;
+    const uint64_t DataSize = NumData;
 /* Initialize header structure.  */
 #define INSTR_PROF_RAW_HEADER(Type, Name, Init) Header.Name = Init;
 #include "profile/InstrProfData.inc"


        


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