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authorMasahiro Yamada <masahiroy@kernel.org>2021-12-14 05:53:53 +0300
committerMasahiro Yamada <masahiroy@kernel.org>2022-01-08 12:03:57 +0300
commit129ab0d2d9f38b9d43df35235fc66c6740d6928b (patch)
treeb58b9e8b648c4b7c2ea3d2eaf6118ad272b89797 /scripts
parent7d153696e5db1e37387c2f7ec06ffc8d4aac70a4 (diff)
downloadlinux-129ab0d2d9f38b9d43df35235fc66c6740d6928b.tar.xz
kbuild: do not quote string values in include/config/auto.conf
The previous commit fixed up all shell scripts to not include include/config/auto.conf. Now that include/config/auto.conf is only included by Makefiles, we can change it into a more Make-friendly form. Previously, Kconfig output string values enclosed with double-quotes (both in the .config and include/config/auto.conf): CONFIG_X="foo bar" Unlike shell, Make handles double-quotes (and single-quotes as well) verbatim. We must rip them off when used. There are some patterns: [1] $(patsubst "%",%,$(CONFIG_X)) [2] $(CONFIG_X:"%"=%) [3] $(subst ",,$(CONFIG_X)) [4] $(shell echo $(CONFIG_X)) These are not only ugly, but also fragile. [1] and [2] do not work if the value contains spaces, like CONFIG_X=" foo bar " [3] does not work correctly if the value contains double-quotes like CONFIG_X="foo\"bar" [4] seems to work better, but has a cost of forking a process. Anyway, quoted strings were always PITA for our Makefiles. This commit changes Kconfig to stop quoting in include/config/auto.conf. These are the string type symbols referenced in Makefiles or scripts: ACPI_CUSTOM_DSDT_FILE ARC_BUILTIN_DTB_NAME ARC_TUNE_MCPU BUILTIN_DTB_SOURCE CC_IMPLICIT_FALLTHROUGH CC_VERSION_TEXT CFG80211_EXTRA_REGDB_KEYDIR EXTRA_FIRMWARE EXTRA_FIRMWARE_DIR EXTRA_TARGETS H8300_BUILTIN_DTB INITRAMFS_SOURCE LOCALVERSION MODULE_SIG_HASH MODULE_SIG_KEY NDS32_BUILTIN_DTB NIOS2_DTB_SOURCE OPENRISC_BUILTIN_DTB SOC_CANAAN_K210_DTB_SOURCE SYSTEM_BLACKLIST_HASH_LIST SYSTEM_REVOCATION_KEYS SYSTEM_TRUSTED_KEYS TARGET_CPU UNUSED_KSYMS_WHITELIST XILINX_MICROBLAZE0_FAMILY XILINX_MICROBLAZE0_HW_VER XTENSA_VARIANT_NAME I checked them one by one, and fixed up the code where necessary. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Makefile.modinst1
-rwxr-xr-xscripts/gen_autoksyms.sh2
-rw-r--r--scripts/kconfig/confdata.c24
-rwxr-xr-xscripts/setlocalversion2
4 files changed, 15 insertions, 14 deletions
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index df7e3d578ef5..c2c43a0ecfe0 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -66,7 +66,6 @@ endif
# Don't stop modules_install even if we can't sign external modules.
#
ifeq ($(CONFIG_MODULE_SIG_ALL),y)
-CONFIG_MODULE_SIG_KEY := $(CONFIG_MODULE_SIG_KEY:"%"=%)
sig-key := $(if $(wildcard $(CONFIG_MODULE_SIG_KEY)),,$(srctree)/)$(CONFIG_MODULE_SIG_KEY)
quiet_cmd_sign = SIGN $@
cmd_sign = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(sig-key) certs/signing_key.x509 $@ \
diff --git a/scripts/gen_autoksyms.sh b/scripts/gen_autoksyms.sh
index 949d6a054034..120225c541c5 100755
--- a/scripts/gen_autoksyms.sh
+++ b/scripts/gen_autoksyms.sh
@@ -23,7 +23,7 @@ if grep -q "^CONFIG_MODVERSIONS=y$" include/config/auto.conf; then
needed_symbols="$needed_symbols module_layout"
fi
-ksym_wl=$(sed -n 's/^CONFIG_UNUSED_KSYMS_WHITELIST="\(.*\)"$/\1/p' include/config/auto.conf)
+ksym_wl=$(sed -n 's/^CONFIG_UNUSED_KSYMS_WHITELIST=\(.*\)$/\1/p' include/config/auto.conf)
if [ -n "$ksym_wl" ]; then
[ "${ksym_wl}" != "${ksym_wl#/}" ] || ksym_wl="$abs_srctree/$ksym_wl"
if [ ! -f "$ksym_wl" ] || [ ! -r "$ksym_wl" ]; then
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 42bc56ee238c..59717be31210 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -244,19 +244,21 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
p, sym->name);
return 1;
case S_STRING:
- if (*p++ != '"')
- break;
- for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
- if (*p2 == '"') {
- *p2 = 0;
+ /* No escaping for S_DEF_AUTO (include/config/auto.conf) */
+ if (def != S_DEF_AUTO) {
+ if (*p++ != '"')
break;
+ for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
+ if (*p2 == '"') {
+ *p2 = 0;
+ break;
+ }
+ memmove(p2, p2 + 1, strlen(p2));
}
- memmove(p2, p2 + 1, strlen(p2));
- }
- if (!p2) {
- if (def != S_DEF_AUTO)
+ if (!p2) {
conf_warning("invalid string found");
- return 1;
+ return 1;
+ }
}
/* fall through */
case S_INT:
@@ -700,7 +702,7 @@ static void print_symbol_for_dotconfig(FILE *fp, struct symbol *sym)
static void print_symbol_for_autoconf(FILE *fp, struct symbol *sym)
{
- __print_symbol(fp, sym, OUTPUT_N_NONE, true);
+ __print_symbol(fp, sym, OUTPUT_N_NONE, false);
}
void print_symbol_for_listconfig(struct symbol *sym)
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index d06137405190..af4754a35e66 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -123,7 +123,7 @@ if test ! "$srctree" -ef .; then
fi
# CONFIG_LOCALVERSION and LOCALVERSION (if set)
-config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION="\(.*\)"$/\1/p' include/config/auto.conf)
+config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf)
res="${res}${config_localversion}${LOCALVERSION}"
# scm version string if not at a tagged commit