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authorJan Beulich <jbeulich@novell.com>2008-12-16 11:30:08 +0000
committerSam Ravnborg <sam@ravnborg.org>2008-12-19 22:47:10 +0100
commit9bb482476c6c9d1ae033306440c51ceac93ea80c (patch)
treeb5e415eee46b66d9cc39e31d29d0d02994321d11 /scripts
parentad7a953c522ceb496611d127e51e278bfe0ff483 (diff)
downloadlwn-9bb482476c6c9d1ae033306440c51ceac93ea80c.tar.gz
lwn-9bb482476c6c9d1ae033306440c51ceac93ea80c.zip
allow stripping of generated symbols under CONFIG_KALLSYMS_ALL
Building upon parts of the module stripping patch, this patch introduces similar stripping for vmlinux when CONFIG_KALLSYMS_ALL=y. Using CONFIG_KALLSYMS_STRIP_GENERATED reduces the overhead of CONFIG_KALLSYMS_ALL from 245k/310k to 65k/80k for the (i386/x86-64) kernels I tested with. The patch also does away with the need to special case the kallsyms- internal symbols by making them available even in the first linking stage. While it is a generated file, the patch includes the changes to scripts/genksyms/keywords.c_shipped, as I'm unsure what the procedure here is. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/genksyms/keywords.c_shipped189
-rw-r--r--scripts/genksyms/keywords.gperf2
-rw-r--r--scripts/kallsyms.c21
3 files changed, 106 insertions, 106 deletions
diff --git a/scripts/genksyms/keywords.c_shipped b/scripts/genksyms/keywords.c_shipped
index 971e0113ae7a..83484fe93ede 100644
--- a/scripts/genksyms/keywords.c_shipped
+++ b/scripts/genksyms/keywords.c_shipped
@@ -1,4 +1,4 @@
-/* ANSI-C code produced by gperf version 3.0.2 */
+/* ANSI-C code produced by gperf version 3.0.1 */
/* Command-line: gperf -L ANSI-C -a -C -E -g -H is_reserved_hash -k '1,3,$' -N is_reserved_word -p -t scripts/genksyms/keywords.gperf */
#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
@@ -32,7 +32,7 @@
#line 3 "scripts/genksyms/keywords.gperf"
struct resword { const char *name; int token; };
-/* maximum key range = 62, duplicates = 0 */
+/* maximum key range = 64, duplicates = 0 */
#ifdef __GNUC__
__inline
@@ -46,32 +46,32 @@ is_reserved_hash (register const char *str, register unsigned int len)
{
static const unsigned char asso_values[] =
{
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 5,
- 65, 65, 65, 65, 65, 65, 35, 65, 65, 65,
- 0, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 0, 65, 0, 65, 5,
- 20, 15, 10, 30, 65, 15, 65, 65, 20, 0,
- 10, 35, 20, 65, 10, 5, 0, 10, 5, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 0,
+ 67, 67, 67, 67, 67, 67, 15, 67, 67, 67,
+ 0, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 0, 67, 0, 67, 5,
+ 25, 20, 15, 30, 67, 15, 67, 67, 10, 0,
+ 10, 40, 20, 67, 10, 5, 0, 10, 15, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67
};
return len + asso_values[(unsigned char)str[2]] + asso_values[(unsigned char)str[0]] + asso_values[(unsigned char)str[len - 1]];
}
@@ -84,116 +84,119 @@ is_reserved_word (register const char *str, register unsigned int len)
{
enum
{
- TOTAL_KEYWORDS = 43,
+ TOTAL_KEYWORDS = 45,
MIN_WORD_LENGTH = 3,
MAX_WORD_LENGTH = 24,
MIN_HASH_VALUE = 3,
- MAX_HASH_VALUE = 64
+ MAX_HASH_VALUE = 66
};
static const struct resword wordlist[] =
{
{""}, {""}, {""},
-#line 26 "scripts/genksyms/keywords.gperf"
+#line 28 "scripts/genksyms/keywords.gperf"
{"asm", ASM_KEYW},
{""},
-#line 8 "scripts/genksyms/keywords.gperf"
+#line 10 "scripts/genksyms/keywords.gperf"
{"__asm", ASM_KEYW},
{""},
-#line 9 "scripts/genksyms/keywords.gperf"
+#line 11 "scripts/genksyms/keywords.gperf"
{"__asm__", ASM_KEYW},
{""}, {""},
-#line 52 "scripts/genksyms/keywords.gperf"
+#line 54 "scripts/genksyms/keywords.gperf"
{"__typeof__", TYPEOF_KEYW},
{""},
-#line 12 "scripts/genksyms/keywords.gperf"
+#line 14 "scripts/genksyms/keywords.gperf"
{"__const", CONST_KEYW},
-#line 11 "scripts/genksyms/keywords.gperf"
- {"__attribute__", ATTRIBUTE_KEYW},
#line 13 "scripts/genksyms/keywords.gperf"
+ {"__attribute__", ATTRIBUTE_KEYW},
+#line 15 "scripts/genksyms/keywords.gperf"
{"__const__", CONST_KEYW},
-#line 18 "scripts/genksyms/keywords.gperf"
+#line 20 "scripts/genksyms/keywords.gperf"
{"__signed__", SIGNED_KEYW},
-#line 44 "scripts/genksyms/keywords.gperf"
+#line 46 "scripts/genksyms/keywords.gperf"
{"static", STATIC_KEYW},
-#line 20 "scripts/genksyms/keywords.gperf"
- {"__volatile__", VOLATILE_KEYW},
-#line 39 "scripts/genksyms/keywords.gperf"
+ {""},
+#line 41 "scripts/genksyms/keywords.gperf"
{"int", INT_KEYW},
-#line 32 "scripts/genksyms/keywords.gperf"
+#line 34 "scripts/genksyms/keywords.gperf"
{"char", CHAR_KEYW},
-#line 33 "scripts/genksyms/keywords.gperf"
+#line 35 "scripts/genksyms/keywords.gperf"
{"const", CONST_KEYW},
-#line 45 "scripts/genksyms/keywords.gperf"
+#line 47 "scripts/genksyms/keywords.gperf"
{"struct", STRUCT_KEYW},
-#line 24 "scripts/genksyms/keywords.gperf"
+#line 26 "scripts/genksyms/keywords.gperf"
{"__restrict__", RESTRICT_KEYW},
-#line 25 "scripts/genksyms/keywords.gperf"
+#line 27 "scripts/genksyms/keywords.gperf"
{"restrict", RESTRICT_KEYW},
-#line 23 "scripts/genksyms/keywords.gperf"
- {"_restrict", RESTRICT_KEYW},
-#line 16 "scripts/genksyms/keywords.gperf"
+#line 7 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW},
+#line 18 "scripts/genksyms/keywords.gperf"
{"__inline__", INLINE_KEYW},
-#line 10 "scripts/genksyms/keywords.gperf"
- {"__attribute", ATTRIBUTE_KEYW},
{""},
-#line 14 "scripts/genksyms/keywords.gperf"
+#line 22 "scripts/genksyms/keywords.gperf"
+ {"__volatile__", VOLATILE_KEYW},
+#line 5 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW},
+#line 25 "scripts/genksyms/keywords.gperf"
+ {"_restrict", RESTRICT_KEYW},
+ {""},
+#line 12 "scripts/genksyms/keywords.gperf"
+ {"__attribute", ATTRIBUTE_KEYW},
+#line 6 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
+#line 16 "scripts/genksyms/keywords.gperf"
{"__extension__", EXTENSION_KEYW},
-#line 35 "scripts/genksyms/keywords.gperf"
+#line 37 "scripts/genksyms/keywords.gperf"
{"enum", ENUM_KEYW},
-#line 19 "scripts/genksyms/keywords.gperf"
- {"__volatile", VOLATILE_KEYW},
-#line 36 "scripts/genksyms/keywords.gperf"
+#line 8 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_UNUSED_SYMBOL", EXPORT_SYMBOL_KEYW},
+#line 38 "scripts/genksyms/keywords.gperf"
{"extern", EXTERN_KEYW},
{""},
-#line 17 "scripts/genksyms/keywords.gperf"
+#line 19 "scripts/genksyms/keywords.gperf"
{"__signed", SIGNED_KEYW},
-#line 7 "scripts/genksyms/keywords.gperf"
- {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW},
- {""},
-#line 51 "scripts/genksyms/keywords.gperf"
+#line 9 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_UNUSED_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
+#line 49 "scripts/genksyms/keywords.gperf"
+ {"union", UNION_KEYW},
+#line 53 "scripts/genksyms/keywords.gperf"
{"typeof", TYPEOF_KEYW},
-#line 46 "scripts/genksyms/keywords.gperf"
+#line 48 "scripts/genksyms/keywords.gperf"
{"typedef", TYPEDEF_KEYW},
-#line 15 "scripts/genksyms/keywords.gperf"
+#line 17 "scripts/genksyms/keywords.gperf"
{"__inline", INLINE_KEYW},
-#line 31 "scripts/genksyms/keywords.gperf"
+#line 33 "scripts/genksyms/keywords.gperf"
{"auto", AUTO_KEYW},
-#line 47 "scripts/genksyms/keywords.gperf"
- {"union", UNION_KEYW},
- {""}, {""},
-#line 48 "scripts/genksyms/keywords.gperf"
- {"unsigned", UNSIGNED_KEYW},
-#line 49 "scripts/genksyms/keywords.gperf"
- {"void", VOID_KEYW},
-#line 42 "scripts/genksyms/keywords.gperf"
- {"short", SHORT_KEYW},
+#line 21 "scripts/genksyms/keywords.gperf"
+ {"__volatile", VOLATILE_KEYW},
{""}, {""},
#line 50 "scripts/genksyms/keywords.gperf"
- {"volatile", VOLATILE_KEYW},
- {""},
-#line 37 "scripts/genksyms/keywords.gperf"
- {"float", FLOAT_KEYW},
-#line 34 "scripts/genksyms/keywords.gperf"
- {"double", DOUBLE_KEYW},
+ {"unsigned", UNSIGNED_KEYW},
{""},
-#line 5 "scripts/genksyms/keywords.gperf"
- {"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW},
- {""}, {""},
-#line 38 "scripts/genksyms/keywords.gperf"
+#line 44 "scripts/genksyms/keywords.gperf"
+ {"short", SHORT_KEYW},
+#line 40 "scripts/genksyms/keywords.gperf"
{"inline", INLINE_KEYW},
-#line 6 "scripts/genksyms/keywords.gperf"
- {"EXPORT_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
-#line 41 "scripts/genksyms/keywords.gperf"
- {"register", REGISTER_KEYW},
{""},
-#line 22 "scripts/genksyms/keywords.gperf"
+#line 52 "scripts/genksyms/keywords.gperf"
+ {"volatile", VOLATILE_KEYW},
+#line 42 "scripts/genksyms/keywords.gperf"
+ {"long", LONG_KEYW},
+#line 24 "scripts/genksyms/keywords.gperf"
{"_Bool", BOOL_KEYW},
-#line 43 "scripts/genksyms/keywords.gperf"
- {"signed", SIGNED_KEYW},
{""}, {""},
-#line 40 "scripts/genksyms/keywords.gperf"
- {"long", LONG_KEYW}
+#line 43 "scripts/genksyms/keywords.gperf"
+ {"register", REGISTER_KEYW},
+#line 51 "scripts/genksyms/keywords.gperf"
+ {"void", VOID_KEYW},
+#line 39 "scripts/genksyms/keywords.gperf"
+ {"float", FLOAT_KEYW},
+#line 36 "scripts/genksyms/keywords.gperf"
+ {"double", DOUBLE_KEYW},
+ {""}, {""}, {""}, {""},
+#line 45 "scripts/genksyms/keywords.gperf"
+ {"signed", SIGNED_KEYW}
};
if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
diff --git a/scripts/genksyms/keywords.gperf b/scripts/genksyms/keywords.gperf
index 5ef3733225fb..8abe7ab8d88f 100644
--- a/scripts/genksyms/keywords.gperf
+++ b/scripts/genksyms/keywords.gperf
@@ -5,6 +5,8 @@ struct resword { const char *name; int token; }
EXPORT_SYMBOL, EXPORT_SYMBOL_KEYW
EXPORT_SYMBOL_GPL, EXPORT_SYMBOL_KEYW
EXPORT_SYMBOL_GPL_FUTURE, EXPORT_SYMBOL_KEYW
+EXPORT_UNUSED_SYMBOL, EXPORT_SYMBOL_KEYW
+EXPORT_UNUSED_SYMBOL_GPL, EXPORT_SYMBOL_KEYW
__asm, ASM_KEYW
__asm__, ASM_KEYW
__attribute, ATTRIBUTE_KEYW
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index ad2434b26970..92758120a767 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -130,18 +130,9 @@ static int read_symbol(FILE *in, struct sym_entry *s)
static int symbol_valid(struct sym_entry *s)
{
/* Symbols which vary between passes. Passes 1 and 2 must have
- * identical symbol lists. The kallsyms_* symbols below are only added
- * after pass 1, they would be included in pass 2 when --all-symbols is
- * specified so exclude them to get a stable symbol list.
+ * identical symbol lists.
*/
static char *special_symbols[] = {
- "kallsyms_addresses",
- "kallsyms_num_syms",
- "kallsyms_names",
- "kallsyms_markers",
- "kallsyms_token_table",
- "kallsyms_token_index",
-
/* Exclude linker generated symbols which vary between passes */
"_SDA_BASE_", /* ppc */
"_SDA2_BASE_", /* ppc */
@@ -173,7 +164,9 @@ static int symbol_valid(struct sym_entry *s)
}
/* Exclude symbols which vary between passes. */
- if (strstr((char *)s->sym + offset, "_compiled."))
+ if (strstr((char *)s->sym + offset, "_compiled.") ||
+ strncmp((char*)s->sym + offset, "__compound_literal.", 19) == 0 ||
+ strncmp((char*)s->sym + offset, "__compound_literal$", 19) == 0)
return 0;
for (i = 0; special_symbols[i]; i++)
@@ -550,8 +543,10 @@ int main(int argc, char **argv)
usage();
read_map(stdin);
- sort_symbols();
- optimize_token_table();
+ if (table_cnt) {
+ sort_symbols();
+ optimize_token_table();
+ }
write_src();
return 0;