Masahiro Yamada bbda5ec671 kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS ... My main motivation of this commit is to clean up scripts/Kbuild.include and scripts/Makefile.build. Currently, CONFIG_TRIM_UNUSED_KSYMS works with a tricky gimmick; possibly exported symbols are detected by letting $(CPP) replace EXPORT_SYMBOL* with a special string '=== __KSYM_*===', which is post-processed by sed, and passed to fixdep. The extra preprocessing is costly, and hacking cmd_and_fixdep is ugly. I came up with a new way to find exported symbols; insert a dummy symbol __ksym_marker_* to each potentially exported symbol. Those dummy symbols are picked up by $(NM), post-processed by sed, then appended to .*.cmd files. I collected the post-process part to a new shell script scripts/gen_ksymdeps.sh for readability. The dummy symbols are put into the .discard.* section so that the linker script rips them off the final vmlinux or modules. A nice side-effect is building with CONFIG_TRIM_UNUSED_KSYMS will be much faster. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Nicolas Pitre <nico@linaro.org>		2018-12-01 23:13:14 +09:00
..
basic	kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS	2018-12-01 23:13:14 +09:00
coccinelle	Coccinelle: remove pci_alloc_consistent semantic to detect in zalloc-simple.cocci	2018-08-22 23:21:43 +09:00
dtc	Merge branch 'all-dtbs' into dt/next	2018-10-04 14:16:15 -05:00
gcc-plugins	stackleak: Allow runtime disabling of kernel stack erasing	2018-09-04 10:35:48 -07:00
gdb
genksyms
kconfig	kconfig: merge_config: avoid false positive matches from comment lines	2018-11-11 23:04:51 +09:00
ksymoops
mod	kbuild: move modpost out of 'scripts' target	2018-12-01 23:09:34 +09:00
package	builddeb: Fix inclusion of dtbs in debian package	2018-11-11 23:04:53 +09:00
selinux
tracing
.gitignore
adjust_autoksyms.sh
asn1_compiler.c	ASN.1: Remove unnecessary shadowed local variable	2018-10-29 00:19:41 +09:00
bin2c.c
bloat-o-meter
bootgraph.pl
bpf_helpers_doc.py
cc-can-link.sh
check_extable.sh
checkincludes.pl
checkkconfigsymbols.py
checkpatch.pl	checkpatch: remove GCC_BINARY_CONSTANT warning	2018-10-31 08:54:13 -07:00
checkstack.pl
checksyscalls.sh
checkversion.pl
clang-version.sh	kbuild: Add a space after ! to prevent parsing as file pattern	2018-08-22 23:21:40 +09:00
cleanfile
cleanpatch
coccicheck
config
conmakehash.c
const_structs.checkpatch
decode_stacktrace.sh
decodecode
depmod.sh	kbuild: modules_install: warn when missing System.map file	2018-09-09 09:14:07 +09:00
diffconfig
documentation-file-ref-check
export_report.pl
extract-cert.c
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux	extract-vmlinux: Check for uncompressed image as fallback	2018-10-17 08:18:01 +02:00
extract_xc3028.pl
faddr2line
file-size.sh
find-unused-docs.sh
gcc-goto.sh
gcc-ld
gcc-plugin.sh
gcc-version.sh
gcc-x86_32-has-stack-protector.sh
gcc-x86_64-has-stack-protector.sh
gen_ksymdeps.sh	kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS	2018-12-01 23:13:14 +09:00
get_dvb_firmware
get_maintainer.pl	get_maintainer: allow option --mpath <directory> to read all files in <directory>	2018-08-22 10:52:48 -07:00
gfp-translate
headerdep.pl
headers.sh
headers_check.pl
headers_install.sh
insert-sys-cert.c
kallsyms.c	kallsyms: remove left-over Blackfin code	2018-09-10 22:54:33 +09:00
Kbuild.include	kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS	2018-12-01 23:13:14 +09:00
Kconfig.include
kernel-doc	kernel-doc: fix declaration type determination	2018-10-18 12:20:35 -06:00
ld-version.sh
leaking_addresses.pl
Lindent
link-vmlinux.sh	kbuild: rename LDFLAGS to KBUILD_LDFLAGS	2018-08-24 08:22:08 +09:00
Makefile	kbuild: descend into scripts/gcc-plugins/ via scripts/Makefile	2018-12-01 23:09:38 +09:00
Makefile.asm-generic
Makefile.build	kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS	2018-12-01 23:13:14 +09:00
Makefile.clean
Makefile.dtbinst
Makefile.extrawarn	Kbuild updates for v4.20 (2nd)	2018-11-03 10:47:33 -07:00
Makefile.gcc-plugins	kbuild: descend into scripts/gcc-plugins/ via scripts/Makefile	2018-12-01 23:09:38 +09:00
Makefile.headersinst
Makefile.host
Makefile.kasan
Makefile.kcov
Makefile.lib	kbuild: remove redundant 'set -e' from filechk_offsets	2018-12-01 23:13:14 +09:00
Makefile.modbuiltin
Makefile.modinst
Makefile.modpost	kbuild: rename LDFLAGS to KBUILD_LDFLAGS	2018-08-24 08:22:08 +09:00
Makefile.modsign
Makefile.ubsan
makelst
markup_oops.pl
mkcompile_h
mkmakefile	kbuild: simplify command line creation in scripts/mkmakefile	2018-10-04 22:56:02 +09:00
mksysmap
mkuboot.sh
module-common.lds
namespace.pl
objdiff
parse-maintainers.pl
patch-kernel
pnmtologo.c
profile2linkerlist.pl
prune-kernel
recordmcount.c
recordmcount.h
recordmcount.pl	nds32/ftrace: Add RECORD_MCOUNT support	2018-09-04 14:45:18 +08:00
setlocalversion	scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks	2018-11-21 23:57:33 +09:00
show_delta
sign-file.c
sortextable.c
sortextable.h
spdxcheck.py
spelling.txt	treewide: correct "differenciate" and "instanciate" typos	2018-08-23 18:48:43 -07:00
sphinx-pre-install
split-man.pl
stackdelta
stackusage
subarch.include	selftests: add headers_install to lib.mk	2018-09-05 08:12:09 -06:00
tags.sh	scripts/tags.sh: add DECLARE_HASHTABLE()	2018-10-26 16:25:18 -07:00
unifdef.c
ver_linux
xen-hypercalls.sh
xz_wrap.sh