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| author | Andreas Schwab <schwab@linux-m68k.org> | 2013-01-20 17:58:47 +0100 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2013-01-24 22:48:04 +0100 |
| commit | 6543becf26fff612cdadeed7250ccc8d49f67f27 (patch) | |
| tree | bcba277bb0c03a81aae46965f3ddc76e582b51f1 /scripts/mod/Makefile | |
| parent | a49f0d1ea3ec94fc7cf33a7c36a16343b74bd565 (diff) | |
| download | op-kernel-dev-6543becf26fff612cdadeed7250ccc8d49f67f27.zip op-kernel-dev-6543becf26fff612cdadeed7250ccc8d49f67f27.tar.gz | |
mod/file2alias: make modalias generation safe for cross compiling
Use the target compiler to compute the offsets for the fields of the
device_id structures, so that it won't be broken by different alignments
between the host and target ABIs.
This also fixes missing endian corrections for some modaliases.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/mod/Makefile')
| -rw-r--r-- | scripts/mod/Makefile | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile index ff954f8..9415b56 100644 --- a/scripts/mod/Makefile +++ b/scripts/mod/Makefile @@ -3,9 +3,44 @@ always := $(hostprogs-y) empty.o modpost-objs := modpost.o file2alias.o sumversion.o +devicetable-offsets-file := devicetable-offsets.h + +define sed-y + "/^->/{s:->#\(.*\):/* \1 */:; \ + s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:->::; p;}" +endef + +quiet_cmd_offsets = GEN $@ +define cmd_offsets + (set -e; \ + echo "#ifndef __DEVICEVTABLE_OFFSETS_H__"; \ + echo "#define __DEVICEVTABLE_OFFSETS_H__"; \ + echo "/*"; \ + echo " * DO NOT MODIFY."; \ + echo " *"; \ + echo " * This file was generated by Kbuild"; \ + echo " *"; \ + echo " */"; \ + echo ""; \ + sed -ne $(sed-y) $<; \ + echo ""; \ + echo "#endif" ) > $@ +endef + +# We use internal kbuild rules to avoid the "is up to date" message from make +scripts/mod/devicetable-offsets.s: scripts/mod/devicetable-offsets.c FORCE + $(Q)mkdir -p $(dir $@) + $(call if_changed_dep,cc_s_c) + +$(obj)/$(devicetable-offsets-file): scripts/mod/devicetable-offsets.s + $(call cmd,offsets) + # dependencies on generated files need to be listed explicitly $(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o: $(obj)/elfconfig.h +$(obj)/file2alias.o: $(obj)/$(devicetable-offsets-file) quiet_cmd_elfconfig = MKELF $@ cmd_elfconfig = $(obj)/mk_elfconfig < $< > $@ |
