| Message ID | 20180710004602.21599-8-labbott@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
2018-07-10 9:46 GMT+09:00 Laura Abbott <labbott@redhat.com>: > > Now that we have the rename in place, reuse the HOST*FLAGS options as > something that can be set from the command line and included with the > rest of the flags. > > Signed-off-by: Laura Abbott <labbott@redhat.com> > --- > v2: Use the correct name for HOSTLDLIBS, update documentation. > --- > Documentation/kbuild/kbuild.txt | 16 ++++++++++++++++ > Makefile | 9 +++++---- > 2 files changed, 21 insertions(+), 4 deletions(-) > > +HOSTLDFLAGS > +-------------------------------------------------- > +Additional flags to be passed to $(HOSTLD) when building host programs. Strictly speaking, $(CC) or $(CXX) is used when linking host programs. See this. https://github.com/torvalds/linux/blob/v4.17/scripts/Makefile.host#L95 https://github.com/torvalds/linux/blob/v4.17/scripts/Makefile.host#L112 In fact, there is no definition of 'HOSTLD' in the top Makefile. I will reword it to: HOSTLDFLAGS -------------------------------------------------- Additional flags to be passed when linking host programs. I will also move this hunk up after LDFLAGS_MODULE.
diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt index 6c9c69ec3986..9847a5974826 100644 --- a/Documentation/kbuild/kbuild.txt +++ b/Documentation/kbuild/kbuild.txt @@ -238,3 +238,19 @@ KBUILD_VMLINUX_LIBS All .a "lib" files for vmlinux. KBUILD_VMLINUX_INIT, KBUILD_VMLINUX_MAIN, and KBUILD_VMLINUX_LIBS together specify all the object files used to link vmlinux. + +HOSTCFLAGS +-------------------------------------------------- +Additional flags to be passed to $(HOSTCC) when building host programs. + +HOSTLDFLAGS +-------------------------------------------------- +Additional flags to be passed to $(HOSTLD) when building host programs. + +HOSTCXXFLAGS +-------------------------------------------------- +Additional flags to be passed to $(HOSTCXX) when building host programs. + +HOSTLDLIBS +-------------------------------------------------- +Additional libraries to link against when building host programs. diff --git a/Makefile b/Makefile index 96e34381d9ee..c2ee1d4c12c9 100644 --- a/Makefile +++ b/Makefile @@ -360,10 +360,11 @@ HOST_LFS_LIBS := $(shell getconf LFS_LIBS) HOSTCC = gcc HOSTCXX = g++ KBUILD_HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \ - -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) -KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) -KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) -KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) + -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \ + $(HOSTCFLAGS) +KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) +KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS) +KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS) # Make variables (CC, etc...) AS = $(CROSS_COMPILE)as
Now that we have the rename in place, reuse the HOST*FLAGS options as something that can be set from the command line and included with the rest of the flags. Signed-off-by: Laura Abbott <labbott@redhat.com> --- v2: Use the correct name for HOSTLDLIBS, update documentation. --- Documentation/kbuild/kbuild.txt | 16 ++++++++++++++++ Makefile | 9 +++++---- 2 files changed, 21 insertions(+), 4 deletions(-)