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| author | Warner Losh <imp@FreeBSD.org> | 2014-04-01 14:24:20 +0000 |
|---|---|---|
| committer | Warner Losh <imp@FreeBSD.org> | 2014-04-01 14:24:20 +0000 |
| commit | 647a9d043b5d16782ce8fbf76ae8e569245d1b1e (patch) | |
| tree | 28f499e3f8c02dae2b505988243e9f79a51a849c /sys/conf/kern.mk | |
| parent | fffba3dbc239061e8fdf280f88ac17d2df09a3c0 (diff) | |
| download | src-test2-647a9d043b5d16782ce8fbf76ae8e569245d1b1e.tar.gz src-test2-647a9d043b5d16782ce8fbf76ae8e569245d1b1e.zip | |
Remove check for clang and expand the comment. Newer versions of gcc
generate dwarf4 by default as well, so always force dwarf2 when
generating debugging data. It is harmless on older versions of both
clang and gcc, but required on newer ones.
Notes
Notes:
svn path=/head/; revision=263995
Diffstat (limited to 'sys/conf/kern.mk')
| -rw-r--r-- | sys/conf/kern.mk | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sys/conf/kern.mk b/sys/conf/kern.mk index 1ba7ec37de35..1571f8360512 100644 --- a/sys/conf/kern.mk +++ b/sys/conf/kern.mk @@ -164,10 +164,12 @@ CFLAGS+= -fstack-protector .endif # -# Add -gdwarf-2 when compiling -g on clang. The default starting in v3.4 -# is to generate DWARF version 4. However, our tools don't cope well with -# DWARF 4, so force it to genereate DWARF2, which they understand. +# Add -gdwarf-2 when compiling -g. The default starting in clang v3.4 +# and gcc 4.8 is to generate DWARF version 4. However, our tools don't +# cope well with DWARF 4, so force it to genereate DWARF2, which they +# understand. Do this unconditionally as it is harmless when not needed, +# but critical for these newer versions. # -.if ${COMPILER_TYPE} == "clang" && ${CFLAGS:M-g} != "" && ${CFLAGS:M-gdwarf*} == "" +.if ${CFLAGS:M-g} != "" && ${CFLAGS:M-gdwarf*} == "" CFLAGS+= -gdwarf-2 .endif |