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Merge tag 'kbuild-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Browse Source 
Pull Kbuild updates from Masahiro Yamada:

 - Remove the support for -O3 (CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3)

 - Fix error of rpm-pkg cross-builds

 - Support riscv for checkstack tool

 - Re-enable -Wformwat warnings for Clang

 - Clean up modpost, Makefiles, and misc scripts

* tag 'kbuild-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (30 commits)
  modpost: remove .symbol_white_list field entirely
  modpost: remove unneeded .symbol_white_list initializers
  modpost: add PATTERNS() helper macro
  modpost: shorten warning messages in report_sec_mismatch()
  Revert "Kbuild, lto, workaround: Don't warn for initcall_reference in modpost"
  modpost: use more reliable way to get fromsec in section_rel(a)()
  modpost: add array range check to sec_name()
  modpost: refactor get_secindex()
  kbuild: set EXIT trap before creating temporary directory
  modpost: remove unused Elf_Sword macro
  Makefile.extrawarn: re-enable -Wformat for clang
  kbuild: add dtbs_prepare target
  kconfig: Qt5: tell the user which packages are required
  modpost: use sym_get_data() to get module device_table data
  modpost: drop executable ELF support
  checkstack: add riscv support for scripts/checkstack.pl
  kconfig: shorten the temporary directory name for cc-option
  scripts: headers_install.sh: Update config leak ignore entries
  kbuild: error out if $(INSTALL_MOD_PATH) contains % or :
  kbuild: error out if $(KBUILD_EXTMOD) contains % or :
  ...
This commit is contained in:
Linus Torvalds
2022-08-10 10:40:41 -07:00
parent d4252071b9 672fb6740c
commit 0af5cb349a
36 changed files with 111 additions and 313 deletions
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14
certs/Makefile
View File

@@ -4,24 +4,22 @@
#
obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o blacklist_hashes.o
obj-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.o
ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),)
$(obj)/blacklist_hashes.o: $(obj)/blacklist_hash_list
CFLAGS_blacklist_hashes.o := -I $(obj)
quiet_cmd_check_and_copy_blacklist_hash_list = GEN $@
cmd_check_and_copy_blacklist_hash_list = \
$(AWK) -f $(srctree)/scripts/check-blacklist-hashes.awk $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST) >&2; \
cat $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST) > $@
$(if $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST), \
$(AWK) -f $(srctree)/$(src)/check-blacklist-hashes.awk $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST) >&2; \
{ cat $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST); echo $(comma) NULL; } > $@, \
echo NULL > $@)
$(obj)/blacklist_hash_list: $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST) FORCE
$(call if_changed,check_and_copy_blacklist_hash_list)
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_hashes.o
else
obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_nohashes.o
endif
targets += blacklist_hash_list
quiet_cmd_extract_certs = CERT $@

1
certs/blacklist_hashes.c
View File

@@ -3,5 +3,4 @@
const char __initconst *const blacklist_hashes[] = {
#include "blacklist_hash_list"
, NULL
};

6
certs/blacklist_nohashes.c
View File

@@ -1,6 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
#include "blacklist.h"
const char __initconst *const blacklist_hashes[] = {
NULL
};

37
certs/check-blacklist-hashes.awk Executable file
View File

@@ -0,0 +1,37 @@
#!/usr/bin/awk -f
# SPDX-License-Identifier: GPL-2.0
#
# Copyright © 2020, Microsoft Corporation. All rights reserved.
#
# Author: Mickaël Salaün <mic@linux.microsoft.com>
#
# Check that a CONFIG_SYSTEM_BLACKLIST_HASH_LIST file contains a valid array of
# hash strings. Such string must start with a prefix ("tbs" or "bin"), then a
# colon (":"), and finally an even number of hexadecimal lowercase characters
# (up to 128).
BEGIN {
RS = ","
}
{
if (!match($0, "^[ \t\n\r]*\"([^\"]*)\"[ \t\n\r]*$", part1)) {
print "Not a string (item " NR "):", $0;
exit 1;
}
if (!match(part1[1], "^(tbs|bin):(.*)$", part2)) {
print "Unknown prefix (item " NR "):", part1[1];
exit 1;
}
if (!match(part2[2], "^([0-9a-f]+)$", part3)) {
print "Not a lowercase hexadecimal string (item " NR "):", part2[2];
exit 1;
}
if (length(part3[1]) > 128) {
print "Hash string too long (item " NR "):", part3[1];
exit 1;
}
if (length(part3[1]) % 2 == 1) {
print "Not an even number of hexadecimal characters (item " NR "):", part3[1];
exit 1;
}
}