Stanislav Fomichev c8b4a8e3b6 bpf: Support pre-2.25-binutils objcopy for vmlinux BTF ... commit da5fb18225 upstream. If vmlinux BTF generation fails, but CONFIG_DEBUG_INFO_BTF is set, .BTF section of vmlinux is empty and kernel will prohibit BPF loading and return "in-kernel BTF is malformed". --dump-section argument to binutils' objcopy was added in version 2.25. When using pre-2.25 binutils, BTF generation silently fails. Convert to --only-section which is present on pre-2.25 binutils. Documentation/process/changes.rst states that binutils 2.21+ is supported, not sure those standards apply to BPF subsystem. v2: * exit and print an error if gen_btf fails (John Fastabend) v3: * resend with Andrii's Acked-by/Tested-by tags Fixes: 341dfcf8d7 ("btf: expose BTF info through sysfs") Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Andrii Nakryiko <andriin@fb.com> Acked-by: Andrii Nakryiko <andriin@fb.com> Cc: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20191127161410.57327-1-sdf@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-01-17 19:48:41 +01:00
..
atomic	locking/atomics: Use sed(1) instead of non-standard head(1) option	2019-06-25 10:17:07 +02:00
basic	kbuild: remove unneeded comments and code from scripts/basic/Makefile	2019-08-29 23:54:29 +09:00
coccinelle	coccinelle: api/devm_platform_ioremap_resource: remove useless script	2019-10-17 09:05:56 -07:00
dtc	dtc: Use pkg-config to locate libyaml	2020-01-04 19:17:09 +01:00
gcc-plugins	gcc-plugins: make it possible to disable CONFIG_GCC_PLUGINS again	2020-01-09 10:19:57 +01:00
gdb	scripts/gdb: fix debugging modules compiled with hot/cold partitioning	2019-11-06 08:47:50 -08:00
genksyms	genksyms: convert to SPDX License Identifier for lex.l and parse.y	2019-09-14 11:40:13 +09:00
kconfig	kconfig: don't crash on NULL expressions in expr_eq()	2020-01-12 12:21:35 +01:00
ksymoops
mod	symbol namespaces: revert to previous __ksymtab name scheme	2019-10-18 15:32:52 +02:00
package	scripts: package: mkdebian: add missing rsync dependency	2020-01-12 12:21:35 +01:00
selinux	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
tracing	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
.gitignore
adjust_autoksyms.sh	kbuild: remove the first line of *.mod files	2019-07-18 02:19:31 +09:00
asn1_compiler.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
bin2c.c
bloat-o-meter
bootgraph.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 391	2019-06-05 17:37:11 +02:00
bpf_helpers_doc.py	bpf: fix script for generating man page on BPF helpers	2019-05-13 01:12:45 +02:00
cc-can-link.sh
check_extable.sh
checkincludes.pl
checkkconfigsymbols.py	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
checkpatch.pl	checkpatch: check for nested (un)?likely() calls	2019-09-25 17:51:42 -07:00
checkstack.pl	scripts/checkstack.pl: Fix arm64 wrong or unknown architecture	2019-06-05 02:33:10 +09:00
checksyscalls.sh	checksyscalls: fix up mq_timedreceive and stat exceptions	2019-02-19 21:27:53 +01:00
checkversion.pl
clang-version.sh	kbuild: update comment block of scripts/clang-version.sh	2019-03-04 22:34:54 +09:00
cleanfile
cleanpatch
coccicheck
config
conmakehash.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 54	2019-05-24 17:36:42 +02:00
const_structs.checkpatch
decode_stacktrace.sh	scripts/decode_stacktrace: Accept dash/underscore in modules	2019-07-12 11:05:41 -07:00
decodecode
depmod.sh
diffconfig
documentation-file-ref-check	scripts/documentation-file-ref-check: ignore output dir	2019-06-14 14:43:01 -06:00
export_report.pl	modpost: add support for symbol namespaces	2019-09-10 10:30:21 +02:00
extract-cert.c
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378	2019-06-05 17:37:10 +02:00
extract_xc3028.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 339	2019-06-05 17:37:07 +02:00
faddr2line
file-size.sh
find-unused-docs.sh
gcc-goto.sh
gcc-ld
gcc-plugin.sh
gcc-version.sh	kbuild: clean up scripts/gcc-version.sh	2019-03-04 22:35:04 +09:00
gcc-x86_32-has-stack-protector.sh
gcc-x86_64-has-stack-protector.sh
gen_compile_commands.py	gen_compile_commands: lower the entry count threshold	2019-07-27 12:18:19 +09:00
gen_ksymdeps.sh
get_abi.pl	doc: ABI scripts: add a SPDX header file	2019-06-21 16:58:37 +02:00
get_dvb_firmware	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61	2019-05-24 17:36:45 +02:00
get_maintainer.pl	get_maintainer: add ability to skip moderated mailing lists	2019-07-16 19:23:22 -07:00
gfp-translate	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
headerdep.pl
headers_check.pl
headers_install.sh	kbuild: re-implement detection of CONFIG options leaked to user-space	2019-08-21 21:05:21 +09:00
insert-sys-cert.c
kallsyms.c	scripts/kallsyms: fix definitely-lost memory leak	2020-01-04 19:18:23 +01:00
Kbuild.include	kbuild: remove ar-option and KBUILD_ARFLAGS	2019-10-01 09:20:33 +09:00
Kconfig.include	kbuild: Fail if gold linker is detected	2019-08-14 01:10:42 +09:00
kernel-doc	kernel-doc: Allow anonymous enum	2019-08-12 15:00:37 -06:00
ld-version.sh
leaking_addresses.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
Lindent
link-vmlinux.sh	bpf: Support pre-2.25-binutils objcopy for vmlinux BTF	2020-01-17 19:48:41 +01:00
Makefile	Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity	2019-09-27 19:37:27 -07:00
Makefile.asm-generic	kbuild: force all architectures except um to include mandatory-y	2019-03-17 12:56:32 +09:00
Makefile.build	kbuild: remove ar-option and KBUILD_ARFLAGS	2019-10-01 09:20:33 +09:00
Makefile.clean	kbuild: clean up subdir-ymn calculation in Makefile.clean	2019-08-29 23:54:29 +09:00
Makefile.dtbinst
Makefile.extrawarn	kbuild: allow Clang to find unused static inline functions for W=1 build	2019-09-09 23:55:43 +09:00
Makefile.gcc-plugins	gcc-plugins: structleak: Generalize to all variable types	2019-03-04 09:29:41 -08:00
Makefile.headersinst	kbuild: fix 'No such file or directory' warning for headers_install	2019-06-24 03:43:03 +09:00
Makefile.host	kbuild: change *FLAGS_<basetarget>.o to take the path relative to $(obj)	2019-09-04 23:12:50 +09:00
Makefile.kasan	kasan/arm64: fix CONFIG_KASAN_SW_TAGS && KASAN_INLINE	2019-08-15 13:24:04 +01:00
Makefile.kcov	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile.lib	kbuild: remove ar-option and KBUILD_ARFLAGS	2019-10-01 09:20:33 +09:00
Makefile.modbuiltin	kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin}	2019-07-17 22:39:27 +09:00
Makefile.modfinal	kbuild: move modkern_{c,a}flags to Makefile.lib from Makefile.build	2019-08-22 01:14:11 +09:00
Makefile.modinst	kbuild: modinst: read modules.order instead of $(MODVERDIR)/*.mod	2019-07-17 22:39:27 +09:00
Makefile.modpost	Modules updates for v5.4	2019-09-22 10:34:46 -07:00
Makefile.modsign	kbuild: modsign: read modules.order instead of $(MODVERDIR)/*.mod	2019-07-17 22:39:27 +09:00
Makefile.package	kbuild: pkg: rename scripts/package/Makefile to scripts/Makefile.package	2019-08-25 07:42:00 +09:00
Makefile.ubsan	ubsan: Remove vla bound checks.	2019-05-06 11:12:09 -07:00
makelst
markup_oops.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 373	2019-06-05 17:37:10 +02:00
mkcompile_h	Kbuild: Handle PREEMPT_RT for version string and magic	2019-08-14 01:10:42 +09:00
mkmakefile	kbuild: get rid of $(realpath ...) from scripts/mkmakefile	2019-08-29 23:54:29 +09:00
mksysmap
mkuboot.sh
module-common.lds
modules-check.sh	kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin}	2019-07-17 22:39:27 +09:00
namespace.pl	namespace: fix namespace.pl script to support relative paths	2019-10-05 15:29:49 +09:00
nsdeps	scripts/nsdeps: make sure to pass all module source files to spatch	2019-11-05 14:08:29 +01:00
objdiff	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 199	2019-05-30 11:29:23 -07:00
parse-maintainers.pl
patch-kernel
pnmtologo.c
profile2linkerlist.pl
prune-kernel
recordmcount.c	recordmcount: Clarify what cleanup() does	2019-08-31 12:19:40 -04:00
recordmcount.h	recordmcount: Fix nop_mcount() function	2019-10-12 20:49:33 -04:00
recordmcount.pl	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166	2019-05-30 11:26:39 -07:00
setlocalversion	scripts: setlocalversion: fix a bashism	2019-10-15 23:45:07 +09:00
show_delta	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438	2019-06-05 17:37:17 +02:00
sign-file.c
sortextable.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378	2019-06-05 17:37:10 +02:00
sortextable.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378	2019-06-05 17:37:10 +02:00
spdxcheck-test.sh
spdxcheck.py	spdxcheck.py: fix directory structures	2019-06-01 15:51:31 -07:00
spelling.txt	scripts/spelling.txt: add more spellings to spelling.txt	2019-07-12 11:05:41 -07:00
sphinx-pre-install	scripts/sphinx-pre-install: seek for Noto CJK fonts for pdf output	2019-07-17 06:57:52 -03:00
split-man.pl
stackdelta
stackusage
subarch.include
tags.sh	kbuild: add a flag to force absolute path for srctree	2019-07-11 00:05:09 +09:00
tools-support-relr.sh	scripts/tools-support-relr.sh: un-quote variables	2019-11-13 10:52:05 +00:00
unifdef.c
ver_linux
xen-hypercalls.sh
xz_wrap.sh