[PATCH v3 1/6] kbuild: add mod(name,file)_flags to assembler flags for module objects

From: Kris Van Hees
Date: Fri May 17 2024 - 00:30:08 EST


Module objects compiled from C source can be identified by the presence
of -DKBUILD_MODFILE and -DKBUILD_MODNAME on their compile command lines.
However, module objects from assembler source do not have this defines.

Add $(modfile_flags) to modkern_aflags (similar to modkern_cflahs), and
add $(modname_flags) to a_flags (similar to c_flags).

Signed-off-by: Kris Van Hees <kris.van.hees@xxxxxxxxxx>
---
scripts/Makefile.lib | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 3179747cbd2cc..a2524ffd046f4 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -234,7 +234,7 @@ modkern_rustflags = \

modkern_aflags = $(if $(part-of-module), \
$(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE), \
- $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL))
+ $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL) $(modfile_flags))

c_flags = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
-include $(srctree)/include/linux/compiler_types.h \
@@ -244,7 +244,7 @@ c_flags = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
rust_flags = $(_rust_flags) $(modkern_rustflags) @$(objtree)/include/generated/rustc_cfg

a_flags = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
- $(_a_flags) $(modkern_aflags)
+ $(_a_flags) $(modkern_aflags) $(modname_flags)

cpp_flags = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
$(_cpp_flags)
--
2.43.0