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Ninja Multi-Config: Fix custom command target dependencies in cross-configs

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Generator expressions in a non-cross custom command's `COMMAND`
arguments are evaluated in the command config.  Target-level
dependencies implied by `TARGET_FILE` must therefore be cross
dependencies.  This is important to generate proper target-level
dependencies on the cross-config build statements for the target to
which the custom command is attached.

Fixes: #22855
This commit is contained in:
Brad King
2021-11-04 12:02:10 -04:00
parent a883363935
commit 95f44e00cd
6 changed files with 34 additions and 4 deletions
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12
Source/cmCustomCommandGenerator.cxx
View File

@@ -91,7 +91,7 @@ std::string EvaluateSplitConfigGenex(
// Record targets referenced by the genex.
if (utils) {
// FIXME: What is the proper condition for a cross-dependency?
// Use a cross-dependency if we referenced the command config.
bool const cross = !useOutputConfig;
for (cmGeneratorTarget* gt : cge->GetTargets()) {
utils->emplace(BT<std::pair<std::string, bool>>(
@@ -176,6 +176,8 @@ cmCustomCommandGenerator::cmCustomCommandGenerator(
cmGeneratorTarget const* target{ lg->FindGeneratorTargetToUse(
this->Target) };
bool const distinctConfigs = this->OutputConfig != this->CommandConfig;
const cmCustomCommandLines& cmdlines = this->CC->GetCommandLines();
for (cmCustomCommandLine const& cmdline : cmdlines) {
cmCustomCommandLine argv;
@@ -191,8 +193,10 @@ cmCustomCommandGenerator::cmCustomCommandGenerator(
argv.push_back(std::move(parsed_arg));
}
// For remaining arguments, we default to the OUTPUT_CONFIG.
useOutputConfig = true;
if (distinctConfigs) {
// For remaining arguments, we default to the OUTPUT_CONFIG.
useOutputConfig = true;
}
}
if (!argv.empty()) {
@@ -200,7 +204,7 @@ cmCustomCommandGenerator::cmCustomCommandGenerator(
// collect the target to add a target-level dependency on it.
cmGeneratorTarget* gt = this->LG->FindGeneratorTargetToUse(argv.front());
if (gt && gt->GetType() == cmStateEnums::EXECUTABLE) {
// FIXME: What is the proper condition for a cross-dependency?
// GetArgv0Location uses the command config, so use a cross-dependency.
bool const cross = true;
this->Utilities.emplace(BT<std::pair<std::string, bool>>(
{ gt->GetName(), cross }, cc.GetBacktrace()));

2
Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex-echo_depend_target-debug-in-release-graph-ninja-stdout.txt Normal file
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@@ -0,0 +1,2 @@
^\[1/1\] Generating echo_depend_target\.txt
'[^']*[\/]Tests[\/]RunCMake[\/]NinjaMultiConfig[\/]CustomCommandOutputGenex-build'\$ '[^']*[\/]Tests[\/]RunCMake[\/]NinjaMultiConfig[\/]CustomCommandOutputGenex-build[\/]Release[\/]echo(\.exe)?' 'Release'$

2
Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex-echo_depend_target-debug-ninja-stdout.txt Normal file
View File

@@ -0,0 +1,2 @@
^\[1/1\] Generating echo_depend_target\.txt
'[^']*[\/]Tests[\/]RunCMake[\/]NinjaMultiConfig[\/]CustomCommandOutputGenex-build'\$ '[^']*[\/]Tests[\/]RunCMake[\/]NinjaMultiConfig[\/]CustomCommandOutputGenex-build[\/]Debug[\/]echo(\.exe)?' 'Debug'$

2
Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex-echo_depend_target-release-ninja-stdout.txt Normal file
View File

@@ -0,0 +1,2 @@
^\[1/1\] Generating echo_depend_target\.txt
'[^']*[\/]Tests[\/]RunCMake[\/]NinjaMultiConfig[\/]CustomCommandOutputGenex-build'\$ '[^']*[\/]Tests[\/]RunCMake[\/]NinjaMultiConfig[\/]CustomCommandOutputGenex-build[\/]Release[\/]echo(\.exe)?' 'Release'$

10
Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex.cmake
View File

@@ -143,6 +143,16 @@ add_custom_command(
PROPERTY SYMBOLIC 1)
add_custom_target(echo_dbgx DEPENDS "$<$<CONFIG:Debug>:echo_dbgx_Debug.txt>")
# A non-cross-config custom command expresses target dependencies in command config.
add_custom_command(
OUTPUT echo_depend_target.txt
COMMAND ${CMAKE_COMMAND} -E env $<TARGET_FILE:echo> $<CONFIG>
# A real project should do:
# DEPENDS $<TARGET_FILE:echo>
# but here we are testing the target-level dependency implied by TARGET_FILE.
)
add_custom_target(echo_depend_target DEPENDS echo_depend_target.txt)
add_custom_target(echo_target_raw
BYPRODUCTS echo_target_raw_$<CONFIG>.txt
COMMENT echo_target_raw

10
Tests/RunCMake/NinjaMultiConfig/RunCMakeTest.cmake
View File

@@ -344,6 +344,16 @@ run_ninja(CustomCommandOutputGenex echo_dbgx-release build-Release.ninja echo_db
run_ninja(CustomCommandOutputGenex clean-release-graph build-Release.ninja -t clean)
run_ninja(CustomCommandOutputGenex echo_dbgx-debug-in-release-graph build-Release.ninja echo_dbgx:Debug)
run_ninja(CustomCommandOutputGenex clean-release-graph build-Release.ninja -t clean)
# echo_depend_target
run_ninja(CustomCommandOutputGenex echo_depend_target-debug-prep build-Debug.ninja echo:Debug)
run_ninja(CustomCommandOutputGenex echo_depend_target-debug build-Debug.ninja echo_depend_target)
run_ninja(CustomCommandOutputGenex clean-debug-graph build-Debug.ninja -t clean)
run_ninja(CustomCommandOutputGenex echo_depend_target-release-prep build-Release.ninja echo:Release)
run_ninja(CustomCommandOutputGenex echo_depend_target-release build-Release.ninja echo_depend_target)
run_ninja(CustomCommandOutputGenex clean-release-graph build-Release.ninja -t clean)
run_ninja(CustomCommandOutputGenex echo_depend_target-debug-in-release-graph-prep build-Release.ninja echo:Release)
run_ninja(CustomCommandOutputGenex echo_depend_target-debug-in-release-graph build-Release.ninja echo_depend_target:Debug)
run_ninja(CustomCommandOutputGenex clean-release-graph build-Release.ninja -t clean)
# echo_target_raw
run_ninja(CustomCommandOutputGenex echo_target_raw-debug build-Debug.ninja echo_target_raw:Debug)
run_ninja(CustomCommandOutputGenex clean-debug-graph build-Debug.ninja -t clean)