Merge tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - do not generate unneeded top-level built-in.a

 - let git ignore O= directory entirely

 - optimize scripts/kallsyms slightly

 - exclude DWARF info from *.s regardless of config options

 - fix GCC toolchain search path for Clang to prepare ld.lld support

 - do not generate modules.order when CONFIG_MODULES is disabled

 - simplify single target rules and remove VPATH for external module
   build

 - allow to add optional flags to dpkg-buildpackage when building
   deb-pkg

 - move some compiler option tests from Makefile to Kconfig

 - various Makefile cleanups

* tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (40 commits)
  kbuild: remove scripts/basic/% build target
  kbuild: use -Werror=implicit-... instead of -Werror-implicit-...
  kbuild: clean up scripts/gcc-version.sh
  kbuild: remove cc-version macro
  kbuild: update comment block of scripts/clang-version.sh
  kbuild: remove commented-out INITRD_COMPRESS
  kbuild: move -gsplit-dwarf, -gdwarf-4 option tests to Kconfig
  kbuild: [bin]deb-pkg: add DPKG_FLAGS variable
  kbuild: move ".config not found!" message from Kconfig to Makefile
  kbuild: invoke syncconfig if include/config/auto.conf.cmd is missing
  kbuild: simplify single target rules
  kbuild: remove empty rules for makefiles
  kbuild: make -r/-R effective in top Makefile for old Make versions
  kbuild: move tools_silent to a more relevant place
  kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig
  kbuild: refactor cc-cross-prefix implementation
  kbuild: hardcode genksyms path and remove GENKSYMS variable
  scripts/gdb: refactor rules for symlink creation
  kbuild: create symlink to vmlinux-gdb.py in scripts_gdb target
  scripts/gdb: do not descend into scripts/gdb from scripts
  ...

1 files changed, 5 insertions, 8 deletions

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index f75e7bda4889..e17837f1d3f2 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -62,11 +62,11 @@ static int all_symbols = 0;
 static int absolute_percpu = 0;
 static int base_relative = 0;
 
-int token_profit[0x10000];
+static int token_profit[0x10000];
 
 /* the table that holds the result of the compression */
-unsigned char best_table[256][2];
-unsigned char best_table_len[256];
+static unsigned char best_table[256][2];
+static unsigned char best_table_len[256];
 
 
 static void usage(void)
@@ -80,7 +80,7 @@ static void usage(void)
  * This ignores the intensely annoying "mapping symbols" found
  * in ARM ELF files: $a, $t and $d.
  */
-static inline int is_arm_mapping_symbol(const char *str)
+static int is_arm_mapping_symbol(const char *str)
 {
 	return str[0] == '$' && strchr("axtd", str[1])
 	       && (str[2] == '\0' || str[2] == '.');
@@ -331,7 +331,7 @@ static void write_src(void)
 	unsigned int *markers;
 	char buf[KSYM_NAME_LEN];
 
-	printf("#include <asm/types.h>\n");
+	printf("#include <asm/bitsperlong.h>\n");
 	printf("#if BITS_PER_LONG == 64\n");
 	printf("#define PTR .quad\n");
 	printf("#define ALGN .balign 8\n");
@@ -596,9 +596,6 @@ static void insert_real_symbols_in_table(void)
 {
 	unsigned int i, j, c;
 
-	memset(best_table, 0, sizeof(best_table));
-	memset(best_table_len, 0, sizeof(best_table_len));
-
 	for (i = 0; i < table_cnt; i++) {
 		for (j = 0; j < table[i].len; j++) {
 			c = table[i].sym[j];