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Masahiro Yamada 48a90a9e56 kbuild: add .DELETE_ON_ERROR special target 
[ Upstream commit 9c2af1c737 ]

If Make gets a fatal signal while a shell is executing, it may delete
the target file that the recipe was supposed to update.  This is needed
to make sure that it is remade from scratch when Make is next run; if
Make is interrupted after the recipe has begun to write the target file,
it results in an incomplete file whose time stamp is newer than that
of the prerequisites files.  Make automatically deletes the incomplete
file on interrupt unless the target is marked .PRECIOUS.

The situation is just the same as when the shell fails for some reasons.
Usually when a recipe line fails, if it has changed the target file at
all, the file is corrupted, or at least it is not completely updated.
Yet the file’s time stamp says that it is now up to date, so the next
time Make runs, it will not try to update that file.

However, Make does not cater to delete the incomplete target file in
this case.  We need to add .DELETE_ON_ERROR somewhere in the Makefile
to request it.

scripts/Kbuild.include seems a suitable place to add it because it is
included from almost all sub-makes.

Please note .DELETE_ON_ERROR is not effective for phony targets.

The external module building should never ever touch the kernel tree.
The following recipe fails if include/generated/autoconf.h is missing.
However, include/config/auto.conf is not deleted since it is a phony
target.

 PHONY += include/config/auto.conf

 include/config/auto.conf:
         $(Q)test -e include/generated/autoconf.h -a -e $@ || (          \
         echo >&2;                                                       \
         echo >&2 "  ERROR: Kernel configuration is invalid.";           \
         echo >&2 "         include/generated/autoconf.h or $@ are missing.";\
         echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it."; \
         echo >&2 ;                                                      \
         /bin/false)

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2018-09-26 08:36:31 +02:00
..
basic fixdep: faster CONFIG_ search 2016-08-24 22:34:19 +02:00
coccinelle Coccinelle: flag conditions with no effect 2016-10-11 09:57:17 +02:00
dtc scripts/dtc: dt_to_config - kernel config options for a devicetree 2016-07-22 14:48:16 -05:00
gcc-plugins gcc-plugins: update gcc-common.h for gcc-7 2017-01-12 11:39:07 +01:00
gdb scripts/gdb/linux/tasks.py: fix get_thread_info 2018-01-23 19:57:08 +01:00
genksyms kbuild: Regenerate genksyms lexer 2016-08-25 20:03:51 +02:00
kconfig kconfig: Avoid format overflow warning from GCC 8.1 2018-06-13 16:16:41 +02:00
ksymoops
…
mod scripts: modpost: check memory allocation results 2018-09-15 09:42:57 +02:00
package builddeb: Fix header package regarding dtc source links 2018-05-30 07:50:39 +02:00
selinux selinux: explicitly declare the role "base_r" 2015-07-13 13:32:00 -04:00
tracing ftrace/scripts: Add helper script to bisect function tracing problem functions 2016-09-21 13:56:55 -04:00
.gitignore KEYS: Reserve an extra certificate symbol for inserting without recompiling 2016-02-26 15:30:20 +00:00
Kbuild.include kbuild: add .DELETE_ON_ERROR special target 2018-09-26 08:36:31 +02:00
Lindent scripts/Lindent: handle missing indent gracefully 2015-09-04 16:54:41 -07:00
Makefile GCC plugin infrastructure 2016-06-07 22:57:10 +02:00
Makefile.asm-generic kbuild: Remove stale asm-generic wrappers 2016-07-07 15:58:45 +02:00
Makefile.build objtool: Fix gcov check for older versions of GCC 2018-06-13 16:16:44 +02:00
Makefile.clean Shared library support 2016-06-07 22:57:10 +02:00
Makefile.dtbinst dtbsinstall: don't move target directory out of the way 2016-01-28 11:40:32 +01:00
Makefile.extrawarn Kbuild: enable -Wmaybe-uninitialized warnings by default 2016-11-11 08:45:08 -08:00
Makefile.fwinst kbuild: include $(src)/Makefile rather than $(obj)/Makefile 2015-04-02 16:42:08 +02:00
Makefile.gcc-plugins gcc-plugins: Add latent_entropy plugin 2016-10-10 14:51:44 -07:00
Makefile.headersinst kbuild: collect shorthands into scripts/Kbuild.include 2014-11-26 14:36:52 +01:00
Makefile.help
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Makefile.host Shared library support 2016-06-07 22:57:10 +02:00
Makefile.kasan kasan: don't emit builtin calls when sanitization is off 2018-08-17 20:59:29 +02:00
Makefile.lib kasan: don't emit builtin calls when sanitization is off 2018-08-17 20:59:29 +02:00
Makefile.modbuiltin
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Makefile.modinst modsign: Abort modules_install when signing fails 2015-08-07 16:26:13 +01:00
Makefile.modpost kbuild: add arch specific post-link Makefile 2016-09-09 10:47:00 +02:00
Makefile.modsign modsign: lookup lines ending in .ko in .mod files 2014-08-27 21:54:11 +09:30
Makefile.ubsan Kbuild: enable -Wmaybe-uninitialized warning for "make W=1" 2016-11-11 08:45:08 -08:00
adjust_autoksyms.sh kbuild: make scripts/adjust_autoksyms.sh robust against timestamp races 2018-05-30 07:50:37 +02:00
analyze_suspend.py PM / tools: scripts: AnalyzeSuspend v4.2 2016-07-15 23:34:14 +02:00
asn1_compiler.c ASN.1: fix open failure check on headername 2016-04-06 14:06:48 +01:00
bloat-o-meter scripts/bloat-o-meter: fix SIGPIPE 2016-11-11 08:12:37 -08:00
bootgraph.pl kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
check-lc_ctype.c DocBook: Use a fixed encoding for output 2015-09-28 01:31:48 -06:00
check_extable.sh scripts: add check_extable.sh script. 2015-04-13 21:03:02 +09:30
checkincludes.pl
…
checkkconfigsymbols.py checkkconfigsymbols: use arglist instead of cmd string 2016-08-28 11:08:34 +02:00
checkpatch.pl checkpatch: silence perl 5.26.0 unescaped left brace warnings 2017-07-21 07:42:21 +02:00
checkstack.pl Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-10-07 21:16:26 -04:00
checksyscalls.sh x86/asm/entry: Move the arch/x86/syscalls/ definitions to arch/x86/entry/syscalls/ 2015-06-04 07:37:37 +02:00
checkversion.pl kbuild: don't warn about include/linux/version.h not including itself 2011-04-29 15:38:55 +02:00
cleanfile
…
cleanpatch
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coccicheck coccinelle: fix parallel build with CHECK=scripts/coccicheck 2017-12-14 09:28:22 +01:00
config kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
conmakehash.c kbuild: trivial - remove trailing spaces 2014-04-30 17:34:32 +02:00
const_structs.checkpatch const_structs.checkpatch: add frequently used from Julia Lawall's list 2016-10-11 15:06:30 -07:00
decode_stacktrace.sh scripts/decode_stacktrace.sh: handle symbols in modules 2016-05-19 19:12:14 -07:00
decodecode scripts/decodecode: make faulting insn ptr more robust 2013-04-29 15:54:27 -07:00
depmod.sh kbuild: make missing $DEPMOD a Warning instead of an Error 2018-09-15 09:43:01 +02:00
diffconfig vfs,ext2: remove CONFIG_EXT2_FS_XIP and rename CONFIG_FS_XIP to CONFIG_FS_DAX 2015-02-16 17:56:04 -08:00
docproc.c docproc: print a comment about autogeneration for rst output 2016-05-14 09:56:56 -06:00
export_report.pl kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
extract-cert.c KEYS: Remove unnecessary header #inclusions from extract-cert.c 2015-09-25 16:31:45 +01:00
extract-ikconfig scripts/extract-ikconfig: Support LZ4-compressed images. 2015-04-15 14:01:12 +02:00
extract-module-sig.pl KEYS: Provide a script to extract a module signature 2015-10-21 15:18:36 +01:00
extract-sys-certs.pl KEYS: Use the symbol value for list size, updated by scripts/insert-sys-cert 2016-02-26 15:32:05 +00:00
extract-vmlinux scripts: add extract-vmlinux 2011-08-31 16:12:17 +02:00
extract_xc3028.pl [media] extract_xc3028.pl: move it to scripts/dir 2016-07-17 14:08:12 -03:00
faddr2line scripts/faddr2line: improve on base path filtering a bit 2016-09-19 14:49:08 -07:00
gcc-goto.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
gcc-ld kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
gcc-plugin.sh gcc-plugins: abort builds cleanly when not supported 2016-08-08 17:49:05 -07:00
gcc-version.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
gcc-x86_32-has-stack-protector.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
gcc-x86_64-has-stack-protector.sh scripts/has-stack-protector: add -fno-PIE 2016-11-09 22:28:05 +01:00
gen_initramfs_list.sh initramfs: Escape colons in depfile 2016-09-23 10:35:32 +02:00
get_dvb_firmware [media] doc-rst: move DVB avulse docs to Documentation/media 2016-07-17 14:02:45 -03:00
get_maintainer.pl get_maintainer: quiet noisy implicit -f vcs_file_exists checking 2016-08-26 17:39:34 -07:00
gfp-translate chmod +x scripts/gfp-translate 2012-06-27 12:44:29 -07:00
headerdep.pl
…
headers.sh CRIS: Fix headers_install 2014-12-20 00:01:12 +01:00
headers_check.pl headers_check: don't warn about c++ guards 2016-05-24 14:12:48 +10:00
headers_install.sh Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00
insert-sys-cert.c KEYS: Reserve an extra certificate symbol for inserting without recompiling 2016-02-26 15:30:20 +00:00
kallsyms.c ARM: 8553/1: kallsyms: remove --page-offset command line option 2016-04-07 21:57:16 +01:00
kernel-doc scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none 2018-02-25 11:05:47 +01:00
kernel-doc-xml-ref scripts/kernel-doc: Adding cross-reference links to html documentation. 2015-08-16 22:11:16 -06:00
ld-version.sh ld-version: Drop the 4th and 5th version components 2016-05-13 14:02:05 +02:00
link-vmlinux.sh kbuild: allow architectures to use thin archives instead of ld -r 2016-09-09 10:31:19 +02:00
makelst
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markup_oops.pl kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
mkcompile_h kbuild: trivial - remove trailing spaces 2014-04-30 17:34:32 +02:00
mkmakefile kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
mksysmap mksysmap: Add h8300 local symbol pattern 2015-06-23 13:35:47 +09:00
mkuboot.sh
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mkversion
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module-common.lds objtool, modules: Discard objtool annotation sections for modules 2018-01-17 09:38:58 +01:00
namespace.pl kallsyms: add support for relative offsets in kallsyms address table 2016-03-15 16:55:16 -07:00
objdiff scripts: objdiff: support directories for the augument of record command 2014-06-10 14:59:33 +02:00
patch-kernel kbuild: trivial - remove trailing spaces 2014-04-30 17:34:32 +02:00
pnmtologo.c kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
profile2linkerlist.pl kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00
prune-kernel scripts: add "prune-kernel" script to clean up old kernel images 2016-02-09 10:09:52 -08:00
recordmcount.c nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
recordmcount.h recordmcount: Fix endianness handling bug for nop_mcount 2015-11-03 10:45:26 -05:00
recordmcount.pl nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
setlocalversion kbuild: setlocalversion: print error to STDERR 2016-06-20 17:37:45 +02:00
show_delta kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
sign-file.c modsign: Make sign-file determine the format of the X.509 cert 2016-06-14 13:18:33 +01:00
sortextable.c parisc: Use generic extable search and sort routines 2016-03-23 16:00:46 +01:00
sortextable.h scripts/sortextable: suppress warning: `relocs_size' may be used uninitialized 2014-10-14 02:18:23 +02:00
spelling.txt spelling.txt: "modeled" is spelt correctly 2016-10-07 18:46:30 -07:00
stackdelta scripts: add stackdelta script 2015-08-28 17:04:40 +02:00
stackusage scripts: add stackusage script 2015-08-28 17:04:40 +02:00
tags.sh tags: honor COMPILED_SOURCE with apart output directory 2018-04-13 19:48:21 +02:00
unifdef.c
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ver_linux ver_linux: rename ver_linux.awk to ver_linux 2016-08-31 13:59:31 +02:00
xen-hypercalls.sh xen: build infrastructure for generating hypercall depending symbols 2015-03-16 14:49:13 +00:00
xz_wrap.sh kbuild: Make scripts executable 2014-08-20 16:03:45 +02:00