From: Borislav Petkov <bp@xxxxxxx> commit d30c7b820be5c4777fe6c3b0c21f9d0064251e51 upstream. Add an explicit __ignore_sync_check__ marker which will be used to mark lines which are supposed to be ignored by file synchronization check scripts, its advantage being that it explicitly denotes such lines in the code. Signed-off-by: Borislav Petkov <bp@xxxxxxx> Reviewed-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx> Link: https://lkml.kernel.org/r/20210304174237.31945-4-bp@xxxxxxxxx Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/x86/include/asm/inat.h | 2 +- arch/x86/include/asm/insn.h | 2 +- arch/x86/lib/inat.c | 2 +- arch/x86/lib/insn.c | 6 +++--- tools/arch/x86/include/asm/inat.h | 2 +- tools/arch/x86/include/asm/insn.h | 2 +- tools/arch/x86/lib/inat.c | 2 +- tools/arch/x86/lib/insn.c | 6 +++--- tools/objtool/sync-check.sh | 17 +++++++++++++---- tools/perf/check-headers.sh | 15 +++++++++++---- 10 files changed, 36 insertions(+), 20 deletions(-) --- a/arch/x86/include/asm/inat.h +++ b/arch/x86/include/asm/inat.h @@ -6,7 +6,7 @@ * * Written by Masami Hiramatsu <mhiramat@xxxxxxxxxx> */ -#include <asm/inat_types.h> +#include <asm/inat_types.h> /* __ignore_sync_check__ */ /* * Internal bits. Don't use bitmasks directly, because these bits are --- a/arch/x86/include/asm/insn.h +++ b/arch/x86/include/asm/insn.h @@ -8,7 +8,7 @@ */ /* insn_attr_t is defined in inat.h */ -#include <asm/inat.h> +#include <asm/inat.h> /* __ignore_sync_check__ */ struct insn_field { union { --- a/arch/x86/lib/inat.c +++ b/arch/x86/lib/inat.c @@ -4,7 +4,7 @@ * * Written by Masami Hiramatsu <mhiramat@xxxxxxxxxx> */ -#include <asm/insn.h> +#include <asm/insn.h> /* __ignore_sync_check__ */ /* Attribute tables are generated from opcode map */ #include "inat-tables.c" --- a/arch/x86/lib/insn.c +++ b/arch/x86/lib/insn.c @@ -10,10 +10,10 @@ #else #include <string.h> #endif -#include <asm/inat.h> -#include <asm/insn.h> +#include <asm/inat.h> /*__ignore_sync_check__ */ +#include <asm/insn.h> /* __ignore_sync_check__ */ -#include <asm/emulate_prefix.h> +#include <asm/emulate_prefix.h> /* __ignore_sync_check__ */ /* Verify next sizeof(t) bytes can be on the same instruction */ #define validate_next(t, insn, n) \ --- a/tools/arch/x86/include/asm/inat.h +++ b/tools/arch/x86/include/asm/inat.h @@ -6,7 +6,7 @@ * * Written by Masami Hiramatsu <mhiramat@xxxxxxxxxx> */ -#include "inat_types.h" +#include "inat_types.h" /* __ignore_sync_check__ */ /* * Internal bits. Don't use bitmasks directly, because these bits are --- a/tools/arch/x86/include/asm/insn.h +++ b/tools/arch/x86/include/asm/insn.h @@ -8,7 +8,7 @@ */ /* insn_attr_t is defined in inat.h */ -#include "inat.h" +#include "inat.h" /* __ignore_sync_check__ */ struct insn_field { union { --- a/tools/arch/x86/lib/inat.c +++ b/tools/arch/x86/lib/inat.c @@ -4,7 +4,7 @@ * * Written by Masami Hiramatsu <mhiramat@xxxxxxxxxx> */ -#include "../include/asm/insn.h" +#include "../include/asm/insn.h" /* __ignore_sync_check__ */ /* Attribute tables are generated from opcode map */ #include "inat-tables.c" --- a/tools/arch/x86/lib/insn.c +++ b/tools/arch/x86/lib/insn.c @@ -10,10 +10,10 @@ #else #include <string.h> #endif -#include "../include/asm/inat.h" -#include "../include/asm/insn.h" +#include "../include/asm/inat.h" /* __ignore_sync_check__ */ +#include "../include/asm/insn.h" /* __ignore_sync_check__ */ -#include "../include/asm/emulate_prefix.h" +#include "../include/asm/emulate_prefix.h" /* __ignore_sync_check__ */ /* Verify next sizeof(t) bytes can be on the same instruction */ #define validate_next(t, insn, n) \ --- a/tools/objtool/sync-check.sh +++ b/tools/objtool/sync-check.sh @@ -16,11 +16,14 @@ arch/x86/include/asm/emulate_prefix.h arch/x86/lib/x86-opcode-map.txt arch/x86/tools/gen-insn-attr-x86.awk include/linux/static_call_types.h -arch/x86/include/asm/inat.h -I '^#include [\"<]\(asm/\)*inat_types.h[\">]' -arch/x86/include/asm/insn.h -I '^#include [\"<]\(asm/\)*inat.h[\">]' -arch/x86/lib/inat.c -I '^#include [\"<]\(../include/\)*asm/insn.h[\">]' -arch/x86/lib/insn.c -I '^#include [\"<]\(../include/\)*asm/in\(at\|sn\).h[\">]' -I '^#include [\"<]\(../include/\)*asm/emulate_prefix.h[\">]' " + +SYNC_CHECK_FILES=' +arch/x86/include/asm/inat.h +arch/x86/include/asm/insn.h +arch/x86/lib/inat.c +arch/x86/lib/insn.c +' fi check_2 () { @@ -63,3 +66,9 @@ while read -r file_entry; do done <<EOF $FILES EOF + +if [ "$SRCARCH" = "x86" ]; then + for i in $SYNC_CHECK_FILES; do + check $i '-I "^.*\/\*.*__ignore_sync_check__.*\*\/.*$"' + done +fi --- a/tools/perf/check-headers.sh +++ b/tools/perf/check-headers.sh @@ -75,6 +75,13 @@ include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/unistd.h ' +SYNC_CHECK_FILES=' +arch/x86/include/asm/inat.h +arch/x86/include/asm/insn.h +arch/x86/lib/inat.c +arch/x86/lib/insn.c +' + # These copies are under tools/perf/trace/beauty/ as they are not used to in # building object files only by scripts in tools/perf/trace/beauty/ to generate # tables that then gets included in .c files for things like id->string syscall @@ -129,6 +136,10 @@ for i in $FILES; do check $i -B done +for i in $SYNC_CHECK_FILES; do + check $i '-I "^.*\/\*.*__ignore_sync_check__.*\*\/.*$"' +done + # diff with extra ignore lines check arch/x86/lib/memcpy_64.S '-I "^EXPORT_SYMBOL" -I "^#include <asm/export.h>" -I"^SYM_FUNC_START\(_LOCAL\)*(memcpy_\(erms\|orig\))"' check arch/x86/lib/memset_64.S '-I "^EXPORT_SYMBOL" -I "^#include <asm/export.h>" -I"^SYM_FUNC_START\(_LOCAL\)*(memset_\(erms\|orig\))"' @@ -137,10 +148,6 @@ check include/uapi/linux/mman.h '- check include/linux/build_bug.h '-I "^#\(ifndef\|endif\)\( \/\/\)* static_assert$"' check include/linux/ctype.h '-I "isdigit("' check lib/ctype.c '-I "^EXPORT_SYMBOL" -I "^#include <linux/export.h>" -B' -check arch/x86/include/asm/inat.h '-I "^#include [\"<]\(asm/\)*inat_types.h[\">]"' -check arch/x86/include/asm/insn.h '-I "^#include [\"<]\(asm/\)*inat.h[\">]"' -check arch/x86/lib/inat.c '-I "^#include [\"<]\(../include/\)*asm/insn.h[\">]"' -check arch/x86/lib/insn.c '-I "^#include [\"<]\(../include/\)*asm/in\(at\|sn\).h[\">]" -I "^#include [\"<]\(../include/\)*asm/emulate_prefix.h[\">]"' # diff non-symmetric files check_2 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
