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authorBrad King <brad.king@kitware.com>2020-11-20 14:45:14 (GMT)
committerBrad King <brad.king@kitware.com>2020-11-20 14:45:14 (GMT)
commit67e2130c963bb3d9d437f00f5d6b8e95d2f5fb18 (patch)
tree56c0932de6d8ab4f49ae293a9a73bda85e7a3c87
parent1d1d78bbe1ed7113927fd0dd078741de3c722b14 (diff)
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Makefiles: Fix CMAKE_EXPORT_COMPILE_COMMANDS crash with custom compile rule
Fixes: #21471
-rw-r--r--Source/cmMakefileTargetGenerator.cxx16
-rw-r--r--Tests/RunCMake/ExportCompileCommands/CustomCompileRule.cmake5
-rw-r--r--Tests/RunCMake/ExportCompileCommands/RunCMakeTest.cmake1
3 files changed, 16 insertions, 6 deletions
diff --git a/Source/cmMakefileTargetGenerator.cxx b/Source/cmMakefileTargetGenerator.cxx
index 5f97d86..6e6c8df 100644
--- a/Source/cmMakefileTargetGenerator.cxx
+++ b/Source/cmMakefileTargetGenerator.cxx
@@ -838,13 +838,17 @@ void cmMakefileTargetGenerator::WriteObjectRuleFiles(
compileCommand.replace(compileCommand.find(langFlags), langFlags.size(),
this->GetFlags(lang, this->GetConfigName()));
std::string langDefines = std::string("$(") + lang + "_DEFINES)";
- compileCommand.replace(compileCommand.find(langDefines),
- langDefines.size(),
- this->GetDefines(lang, this->GetConfigName()));
+ std::string::size_type ldPos = compileCommand.find(langDefines);
+ if (ldPos != std::string::npos) {
+ compileCommand.replace(ldPos, langDefines.size(),
+ this->GetDefines(lang, this->GetConfigName()));
+ }
std::string langIncludes = std::string("$(") + lang + "_INCLUDES)";
- compileCommand.replace(compileCommand.find(langIncludes),
- langIncludes.size(),
- this->GetIncludes(lang, this->GetConfigName()));
+ std::string::size_type liPos = compileCommand.find(langIncludes);
+ if (liPos != std::string::npos) {
+ compileCommand.replace(liPos, langIncludes.size(),
+ this->GetIncludes(lang, this->GetConfigName()));
+ }
cmProp eliminate[] = {
this->Makefile->GetDefinition("CMAKE_START_TEMP_FILE"),
diff --git a/Tests/RunCMake/ExportCompileCommands/CustomCompileRule.cmake b/Tests/RunCMake/ExportCompileCommands/CustomCompileRule.cmake
new file mode 100644
index 0000000..12368a2
--- /dev/null
+++ b/Tests/RunCMake/ExportCompileCommands/CustomCompileRule.cmake
@@ -0,0 +1,5 @@
+enable_language(C)
+add_library(empty STATIC empty.c)
+string(REPLACE "<DEFINES>" "" CMAKE_C_COMPILE_OBJECT "${CMAKE_C_COMPILE_OBJECT}")
+string(REPLACE "<INCLUDES>" "" CMAKE_C_COMPILE_OBJECT "${CMAKE_C_COMPILE_OBJECT}")
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
diff --git a/Tests/RunCMake/ExportCompileCommands/RunCMakeTest.cmake b/Tests/RunCMake/ExportCompileCommands/RunCMakeTest.cmake
index b540a04..9e7e732 100644
--- a/Tests/RunCMake/ExportCompileCommands/RunCMakeTest.cmake
+++ b/Tests/RunCMake/ExportCompileCommands/RunCMakeTest.cmake
@@ -1,3 +1,4 @@
include(RunCMake)
run_cmake_with_options(BeforeProject -DCMAKE_PROJECT_INCLUDE_BEFORE=BeforeProjectBEFORE.cmake)
+run_cmake(CustomCompileRule)