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author | imp <imp@FreeBSD.org> | 2014-07-17 22:31:46 +0000 |
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committer | imp <imp@FreeBSD.org> | 2014-07-17 22:31:46 +0000 |
commit | 07bb5d08f32b7d5d09ea862fb77c1b20ce9b9bcd (patch) | |
tree | 544dd6176b94f67f27aedf30b8bd0348f28f95fc /sys/conf | |
parent | 08c695a76f98c90f35979e8662000d622d38223f (diff) | |
download | FreeBSD-src-07bb5d08f32b7d5d09ea862fb77c1b20ce9b9bcd.zip FreeBSD-src-07bb5d08f32b7d5d09ea862fb77c1b20ce9b9bcd.tar.gz |
MFC r263749,267146:
>r267146 | imp | 2014-06-05 22:08:55 -0600 (Thu, 05 Jun 2014) | 4 lines
>Restore comments accidentally removed.
>r263749 | imp | 2014-03-25 16:08:31 -0600 (Tue, 25 Mar 2014) | 18 lines
>Rather than require a makeoptions DEBUG to get debug correct,
>add it in kern.mk, but only if we're using clang. While this
>option is supported by both clang and gcc, in the future there
>may be changes to clang which change the defaults that require
>a tweak to build our kernel such that other tools in our tree
>will work. Set a good example by forcing -gdwarf-2 only for
>clang builds, and only if the user hasn't specified another
>dwarf level already. Update UPDATING to reflect the changed
>state of affairs. This also keeps us from having to update
>all the ARM kernels to add this, and also keeps us from
>in the future having to update all the MIPS kernels and is
>one less place the user will have to know to do something
>special for clang and one less thing developers will need
>to do when moving an architecture to clang.
Diffstat (limited to 'sys/conf')
-rw-r--r-- | sys/conf/kern.mk | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/conf/kern.mk b/sys/conf/kern.mk index e49cf6d..7f3f394 100644 --- a/sys/conf/kern.mk +++ b/sys/conf/kern.mk @@ -159,3 +159,10 @@ CFLAGS+= -ffreestanding ${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips" CFLAGS+= -fstack-protector .endif + +# +# Add -gdwarf-2 when compiling -g +# +.if ${COMPILER_TYPE} == "clang" && ${CFLAGS:M-g} != "" && ${CFLAGS:M-gdwarf} == "" +CFLAGS+= -gdwarf-2 +.endif |