lkml.org 
[lkml]   [2006]   [Oct]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 11/13] kbuild: make modpost processing configurable
Date
From: Sam Ravnborg <sam@neptun.ravnborg.org>

On request from Al Viro make modpost processing configurable.

KBUILD_MODPOST_WARN can be set to make modpost warn instead of
error out in case on unresolved symbols in final module link.

KBUILD_MODPOST_NOFINAL can be set to avoid the final and timeconsuming
.c file generation and link of .ko files. This is solely useful for
speeding up when doing compile checks with for example allmodconfig

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
scripts/Makefile.modpost | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 4b2721c..6c5469b 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -32,6 +32,10 @@ # - See include/linux/module.h for m
# Step 4 is solely used to allow module versioning in external modules,
# where the CRC of each module is retrieved from the Module.symers file.

+# KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined
+# symbols in the final module linking stage
+# KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules.
+# This is solely usefull to speed up test compiles
PHONY := _modpost
_modpost: __modpost

@@ -46,7 +50,8 @@ # Step 1), find all modules listed in $(
__modules := $(sort $(shell grep -h '\.ko' /dev/null $(wildcard $(MODVERDIR)/*.mod)))
modules := $(patsubst %.o,%.ko, $(wildcard $(__modules:.ko=.o)))

-_modpost: $(modules)
+# Stop after building .o files if NOFINAL is set. Makes compile tests quicker
+_modpost: $(if $(KBUILD_MODPOST_NOFINAL), $(modules:.ko:.o),$(modules))


# Step 2), invoke modpost
@@ -58,7 +63,7 @@ quiet_cmd_modpost = MODPOST $(words $(fi
$(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \
$(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \
$(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \
- $(if $(KBUILD_EXTMOD),-w) \
+ $(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w) \
$(wildcard vmlinux) $(filter-out FORCE,$^)

PHONY += __modpost
@@ -92,7 +97,7 @@ targets += $(modules:.ko=.mod.o)

# Step 6), final link of the modules
quiet_cmd_ld_ko_o = LD [M] $@
- cmd_ld_ko_o = $(LD) $(LDFLAGS) $(LDFLAGS_MODULE) -o $@ \
+ cmd_ld_ko_o = $(LD) $(LDFLAGS) $(LDFLAGS_MODULE) -o $@ \
$(filter-out FORCE,$^)

$(modules): %.ko :%.o %.mod.o FORCE
--
1.4.1
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-10-01 12:59    [W:0.144 / U:0.340 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site