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| author | dim <dim@FreeBSD.org> | 2012-06-03 20:35:41 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2012-06-03 20:35:41 +0000 |
| commit | a0a31e8b37066f40c455b46339ef12ec8a9ad5e0 (patch) | |
| tree | 37e981a92a2453b2d59fd54246a225fcf318f59f /share/mk | |
| parent | c875946e795a2d59b25dfe0f44ff168c598074d7 (diff) | |
| download | FreeBSD-src-a0a31e8b37066f40c455b46339ef12ec8a9ad5e0.zip FreeBSD-src-a0a31e8b37066f40c455b46339ef12ec8a9ad5e0.tar.gz | |
During buildworld and buildkernel, define EARLY_BUILD in the earlier
stages (build-tools, cross-tools, etc) of the build, so we can detect in
bsd.*.mk whether to pass compiler-specific flags to ${CC}.
In particular, this commit will allow using WITH_CLANG_IS_CC when the
base compiler is still gcc, and when ${CC}, ${CXX} and ${CPP} are left
at their defaults. The early stages will then be built using gcc, and
no clang-specific flags will be passed to it. The later stages will be
built as usual.
The EARLY_BUILD define can also serve other uses, such as building the
world stage C++ executables with libc++ instead of libstdc++: during the
early build stages, we cannot assume libc++ is already available, so we
must still build with libstdc++ at that time.
MFC after: 1 week
Diffstat (limited to 'share/mk')
| -rw-r--r-- | share/mk/bsd.sys.mk | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk index f023750..28c1a18 100644 --- a/share/mk/bsd.sys.mk +++ b/share/mk/bsd.sys.mk @@ -61,7 +61,8 @@ CWARNFLAGS+= -Wno-uninitialized CWARNFLAGS+= -Wno-pointer-sign # Clang has more warnings enabled by default, and when using -Wall, so if WARNS # is set to low values, these have to be disabled explicitly. -.if ${MK_CLANG_IS_CC} != "no" || ${CC:T:Mclang} == "clang" +.if (${MK_CLANG_IS_CC} != "no" || ${CC:T:Mclang} == "clang") && \ + !defined(EARLY_BUILD) .if ${WARNS} <= 6 CWARNFLAGS+= -Wno-empty-body -Wno-string-plus-int .endif # WARNS <= 6 @@ -88,7 +89,8 @@ WFORMAT= 1 .if ${WFORMAT} > 0 #CWARNFLAGS+= -Wformat-nonliteral -Wformat-security -Wno-format-extra-args CWARNFLAGS+= -Wformat=2 -Wno-format-extra-args -.if ${MK_CLANG_IS_CC} != "no" || ${CC:T:Mclang} == "clang" +.if (${MK_CLANG_IS_CC} != "no" || ${CC:T:Mclang} == "clang") && \ + !defined(EARLY_BUILD) .if ${WARNS} <= 3 CWARNFLAGS+= -Wno-format-nonliteral .endif # WARNS <= 3 @@ -109,7 +111,8 @@ CWARNFLAGS+= -Wno-format CWARNFLAGS+= -Wno-unknown-pragmas .endif # IGNORE_PRAGMA -.if ${MK_CLANG_IS_CC} != "no" || ${CC:T:Mclang} == "clang" +.if (${MK_CLANG_IS_CC} != "no" || ${CC:T:Mclang} == "clang") && \ + !defined(EARLY_BUILD) CLANG_NO_IAS= -no-integrated-as CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\ -mllvm -enable-load-pre=false -mllvm -simplifycfg-dup-ret |
