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Use compressed debug in standalone userland debug files by default

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The compiler supports CFLAGS=-gz=zlib to compress .debug sections in
object files, libraries, and binaries.  Enable it to reduce disk usage
for standalone debug files (and /usr/obj).

Reviewed by:	dim, kevans
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D29002
This commit is contained in:
Ed Maste 2021-03-01 12:25:22 -05:00
parent a0d701f614
commit c910570e75
4 changed files with 11 additions and 2 deletions
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2
share/mk/bsd.compiler.mk
View File

@ -235,7 +235,7 @@ ${X_}COMPILER_FEATURES+= c++11 c++14
${X_}COMPILER_FEATURES+= c++17
.endif
.if ${${X_}COMPILER_TYPE} == "clang"
${X_}COMPILER_FEATURES+= retpoline init-all
${X_}COMPILER_FEATURES+= compressed-debug retpoline init-all
.endif
.if ${${X_}COMPILER_TYPE} == "clang" && ${${X_}COMPILER_VERSION} >= 100000 || \
(${${X_}COMPILER_TYPE} == "gcc" && ${${X_}COMPILER_VERSION} >= 80100)

5
share/mk/bsd.lib.mk
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@ -113,8 +113,13 @@ CXXFLAGS+= -ftrivial-auto-var-init=pattern
.if ${MK_DEBUG_FILES} != "no" && empty(DEBUG_FLAGS:M-g) && \
empty(DEBUG_FLAGS:M-gdwarf*)
.if !${COMPILER_FEATURES:Mcompressed-debug}
CFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
CXXFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
.else
CFLAGS+= ${DEBUG_FILES_CFLAGS}
CXXFLAGS+= ${DEBUG_FILES_CFLAGS}
.endif
CTFFLAGS+= -g
.endif

4
share/mk/bsd.prog.mk
View File

@ -93,7 +93,11 @@ CFLAGS+=${CRUNCH_CFLAGS}
.else
.if ${MK_DEBUG_FILES} != "no" && empty(DEBUG_FLAGS:M-g) && \
empty(DEBUG_FLAGS:M-gdwarf-*)
.if !${COMPILER_FEATURES:Mcompressed-debug}
CFLAGS+= ${DEBUG_FILES_CFLAGS:N-gz*}
.else
CFLAGS+= ${DEBUG_FILES_CFLAGS}
.endif
CTFFLAGS+= -g
.endif
.endif

2
share/mk/bsd.sys.mk
View File

@ -247,7 +247,7 @@ CFLAGS+= ${SSP_CFLAGS}
# Additional flags passed in CFLAGS and CXXFLAGS when MK_DEBUG_FILES is
# enabled.
DEBUG_FILES_CFLAGS?= -g
DEBUG_FILES_CFLAGS?= -g -gz=zlib
# Allow user-specified additional warning flags, plus compiler and file
# specific flag overrides, unless we've overridden this...