Date: Wed, 17 Feb 2021 22:27:21 GMT From: Brooks Davis <brooks@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: d616ae46b484 - main - Add fileprefixmap compiler feature Message-ID: <202102172227.11HMRLYi099679@gitrepo.freebsd.org>
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The branch main has been updated by brooks: URL: https://cgit.FreeBSD.org/src/commit/?id=d616ae46b4849b0678326dfacbba5fd7c8febbea commit d616ae46b4849b0678326dfacbba5fd7c8febbea Author: Dan McGregor <dan.mcgregor@usask.ca> AuthorDate: 2021-02-17 22:26:49 +0000 Commit: Brooks Davis <brooks@FreeBSD.org> CommitDate: 2021-02-17 22:26:49 +0000 Add fileprefixmap compiler feature -ffile-prefix-map=<old>=<new> is a compiler feature first added in GCC 8, and implemented for clang 10. It remaps old paths to new paths in both debug information and __FILE__ and __BASE_FILE__ macros. It can be used to improve reproducibility or to hide local system directories. I intend to use it to replace the real source directory and real object directory with constant values across all builds. Reviewed by: brooks Differential Revision: https://reviews.freebsd.org/D28632 --- share/mk/bsd.compiler.mk | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/share/mk/bsd.compiler.mk b/share/mk/bsd.compiler.mk index fa8e6c44a17e..0d8f02489f00 100644 --- a/share/mk/bsd.compiler.mk +++ b/share/mk/bsd.compiler.mk @@ -226,6 +226,10 @@ ${X_}COMPILER_FEATURES+= c++17 .if ${${X_}COMPILER_TYPE} == "clang" ${X_}COMPILER_FEATURES+= retpoline init-all .endif +.if ${${X_}COMPILER_TYPE} == "clang" && ${${X_}COMPILER_VERSION} >= 100000 || \ + (${${X_}COMPILER_TYPE} == "gcc" && ${${X_}COMPILER_VERSION} >= 80100) +${X_}COMPILER_FEATURES+= fileprefixmap +.endif .else # Use CC's values
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