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| author | Akira Hatanaka <ahatanaka@apple.com> | 2022-11-16 14:20:23 -0800 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@apple.com> | 2022-12-07 15:30:19 -0800 |
| commit | 3738ce05a70cf97fc73a07b158a1726f61aed28b (patch) | |
| tree | 9eb6899ba3d2924b69b037af42b3ed84453a3203 /clang/lib/Driver/Driver.cpp | |
| parent | 49e75ebd854dee1fcf5729c264f4cfadf76e952d (diff) | |
| download | llvm-3738ce05a70cf97fc73a07b158a1726f61aed28b.zip llvm-3738ce05a70cf97fc73a07b158a1726f61aed28b.tar.gz llvm-3738ce05a70cf97fc73a07b158a1726f61aed28b.tar.bz2 | |
Add support for a backdoor driver option that enables emitting header
usage information in JSON to a file
Each line in the file is a JSON object that has the name of the main
source file followed by the list of system header files included
directly or indirectly from that file.
For example:
{"source":"/tmp/foo.c",
"includes":["/usr/include/stdio.h", "/usr/include/stdlib.h"]}
To reduce the amount of data written to the file, only the system
headers that are directly included from a non-system header file are
recorded.
In order to emit the header information in JSON, it is necessary to set
the following environment variables:
CC_PRINT_HEADERS_FORMAT=json CC_PRINT_HEADERS_FILTERING=only-direct-system
The following combination is equivalent to setting CC_PRINT_HEADERS=1:
CC_PRINT_HEADERS_FORMAT=textual CC_PRINT_HEADERS_FILTERING=none
Differential Revision: https://reviews.llvm.org/D137996
Diffstat (limited to 'clang/lib/Driver/Driver.cpp')
| -rw-r--r-- | clang/lib/Driver/Driver.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp index cf0a596..969d385 100644 --- a/clang/lib/Driver/Driver.cpp +++ b/clang/lib/Driver/Driver.cpp @@ -198,7 +198,7 @@ Driver::Driver(StringRef ClangExecutable, StringRef TargetTriple, ModulesModeCXX20(false), LTOMode(LTOK_None), ClangExecutable(ClangExecutable), SysRoot(DEFAULT_SYSROOT), DriverTitle(Title), CCCPrintBindings(false), CCPrintOptions(false), - CCPrintHeaders(false), CCLogDiagnostics(false), CCGenDiagnostics(false), + CCLogDiagnostics(false), CCGenDiagnostics(false), CCPrintProcessStats(false), TargetTriple(TargetTriple), Saver(Alloc), CheckInputsExist(true), ProbePrecompiled(true), SuppressMissingInputWarning(false) { |