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authorJan Beulich <jbeulich@novell.com>2008-12-16 06:30:08 -0500
committerSam Ravnborg <sam@ravnborg.org>2008-12-19 16:47:10 -0500
commit9bb482476c6c9d1ae033306440c51ceac93ea80c (patch)
treeb5e415eee46b66d9cc39e31d29d0d02994321d11 /scripts
parentad7a953c522ceb496611d127e51e278bfe0ff483 (diff)
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 @@
1/* ANSI-C code produced by gperf version 3.0.2 */ 1/* ANSI-C code produced by gperf version 3.0.1 */
2/* Command-line: gperf -L ANSI-C -a -C -E -g -H is_reserved_hash -k '1,3,$' -N is_reserved_word -p -t scripts/genksyms/keywords.gperf */ 2/* Command-line: gperf -L ANSI-C -a -C -E -g -H is_reserved_hash -k '1,3,$' -N is_reserved_word -p -t scripts/genksyms/keywords.gperf */
3 3
4#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \ 4#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
@@ -32,7 +32,7 @@
32 32
33#line 3 "scripts/genksyms/keywords.gperf" 33#line 3 "scripts/genksyms/keywords.gperf"
34struct resword { const char *name; int token; }; 34struct resword { const char *name; int token; };
35/* maximum key range = 62, duplicates = 0 */ 35/* maximum key range = 64, duplicates = 0 */
36 36
37#ifdef __GNUC__ 37#ifdef __GNUC__
38__inline 38__inline
@@ -46,32 +46,32 @@ is_reserved_hash (register const char *str, register unsigned int len)
46{ 46{
47 static const unsigned char asso_values[] = 47 static const unsigned char asso_values[] =
48 { 48 {
49 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 49 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
50 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 50 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
51 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 51 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
52 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 52 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
53 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 53 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
54 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 54 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
55 65, 65, 65, 65, 65, 65, 65, 65, 65, 5, 55 67, 67, 67, 67, 67, 67, 67, 67, 67, 0,
56 65, 65, 65, 65, 65, 65, 35, 65, 65, 65, 56 67, 67, 67, 67, 67, 67, 15, 67, 67, 67,
57 0, 65, 65, 65, 65, 65, 65, 65, 65, 65, 57 0, 67, 67, 67, 67, 67, 67, 67, 67, 67,
58 65, 65, 65, 65, 65, 0, 65, 0, 65, 5, 58 67, 67, 67, 67, 67, 0, 67, 0, 67, 5,
59 20, 15, 10, 30, 65, 15, 65, 65, 20, 0, 59 25, 20, 15, 30, 67, 15, 67, 67, 10, 0,
60 10, 35, 20, 65, 10, 5, 0, 10, 5, 65, 60 10, 40, 20, 67, 10, 5, 0, 10, 15, 67,
61 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 61 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
62 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 62 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
63 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 63 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
64 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 64 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
65 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
66 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 66 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
67 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 67 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
68 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 68 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
69 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 69 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
70 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 70 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
71 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 71 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
72 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 72 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
73 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 73 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
74 65, 65, 65, 65, 65, 65 74 67, 67, 67, 67, 67, 67
75 }; 75 };
76 return len + asso_values[(unsigned char)str[2]] + asso_values[(unsigned char)str[0]] + asso_values[(unsigned char)str[len - 1]]; 76 return len + asso_values[(unsigned char)str[2]] + asso_values[(unsigned char)str[0]] + asso_values[(unsigned char)str[len - 1]];
77} 77}
@@ -84,116 +84,119 @@ is_reserved_word (register const char *str, register unsigned int len)
84{ 84{
85 enum 85 enum
86 { 86 {
87 TOTAL_KEYWORDS = 43, 87 TOTAL_KEYWORDS = 45,
88 MIN_WORD_LENGTH = 3, 88 MIN_WORD_LENGTH = 3,
89 MAX_WORD_LENGTH = 24, 89 MAX_WORD_LENGTH = 24,
90 MIN_HASH_VALUE = 3, 90 MIN_HASH_VALUE = 3,
91 MAX_HASH_VALUE = 64 91 MAX_HASH_VALUE = 66
92 }; 92 };
93 93
94 static const struct resword wordlist[] = 94 static const struct resword wordlist[] =
95 { 95 {
96 {""}, {""}, {""}, 96 {""}, {""}, {""},
97#line 26 "scripts/genksyms/keywords.gperf" 97#line 28 "scripts/genksyms/keywords.gperf"
98 {"asm", ASM_KEYW}, 98 {"asm", ASM_KEYW},
99 {""}, 99 {""},
100#line 8 "scripts/genksyms/keywords.gperf" 100#line 10 "scripts/genksyms/keywords.gperf"
101 {"__asm", ASM_KEYW}, 101 {"__asm", ASM_KEYW},
102 {""}, 102 {""},
103#line 9 "scripts/genksyms/keywords.gperf" 103#line 11 "scripts/genksyms/keywords.gperf"
104 {"__asm__", ASM_KEYW}, 104 {"__asm__", ASM_KEYW},
105 {""}, {""}, 105 {""}, {""},
106#line 52 "scripts/genksyms/keywords.gperf" 106#line 54 "scripts/genksyms/keywords.gperf"
107 {"__typeof__", TYPEOF_KEYW}, 107 {"__typeof__", TYPEOF_KEYW},
108 {""}, 108 {""},
109#line 12 "scripts/genksyms/keywords.gperf" 109#line 14 "scripts/genksyms/keywords.gperf"
110 {"__const", CONST_KEYW}, 110 {"__const", CONST_KEYW},
111#line 11 "scripts/genksyms/keywords.gperf"
112 {"__attribute__", ATTRIBUTE_KEYW},
113#line 13 "scripts/genksyms/keywords.gperf" 111#line 13 "scripts/genksyms/keywords.gperf"
112 {"__attribute__", ATTRIBUTE_KEYW},
113#line 15 "scripts/genksyms/keywords.gperf"
114 {"__const__", CONST_KEYW}, 114 {"__const__", CONST_KEYW},
115#line 18 "scripts/genksyms/keywords.gperf" 115#line 20 "scripts/genksyms/keywords.gperf"
116 {"__signed__", SIGNED_KEYW}, 116 {"__signed__", SIGNED_KEYW},
117#line 44 "scripts/genksyms/keywords.gperf" 117#line 46 "scripts/genksyms/keywords.gperf"
118 {"static", STATIC_KEYW}, 118 {"static", STATIC_KEYW},
119#line 20 "scripts/genksyms/keywords.gperf" 119 {""},
120 {"__volatile__", VOLATILE_KEYW}, 120#line 41 "scripts/genksyms/keywords.gperf"
121#line 39 "scripts/genksyms/keywords.gperf"
122 {"int", INT_KEYW}, 121 {"int", INT_KEYW},
123#line 32 "scripts/genksyms/keywords.gperf" 122#line 34 "scripts/genksyms/keywords.gperf"
124 {"char", CHAR_KEYW}, 123 {"char", CHAR_KEYW},
125#line 33 "scripts/genksyms/keywords.gperf" 124#line 35 "scripts/genksyms/keywords.gperf"
126 {"const", CONST_KEYW}, 125 {"const", CONST_KEYW},
127#line 45 "scripts/genksyms/keywords.gperf" 126#line 47 "scripts/genksyms/keywords.gperf"
128 {"struct", STRUCT_KEYW}, 127 {"struct", STRUCT_KEYW},
129#line 24 "scripts/genksyms/keywords.gperf" 128#line 26 "scripts/genksyms/keywords.gperf"
130 {"__restrict__", RESTRICT_KEYW}, 129 {"__restrict__", RESTRICT_KEYW},
131#line 25 "scripts/genksyms/keywords.gperf" 130#line 27 "scripts/genksyms/keywords.gperf"
132 {"restrict", RESTRICT_KEYW}, 131 {"restrict", RESTRICT_KEYW},
133#line 23 "scripts/genksyms/keywords.gperf" 132#line 7 "scripts/genksyms/keywords.gperf"
134 {"_restrict", RESTRICT_KEYW}, 133 {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW},
135#line 16 "scripts/genksyms/keywords.gperf" 134#line 18 "scripts/genksyms/keywords.gperf"
136 {"__inline__", INLINE_KEYW}, 135 {"__inline__", INLINE_KEYW},
137#line 10 "scripts/genksyms/keywords.gperf"
138 {"__attribute", ATTRIBUTE_KEYW},
139 {""}, 136 {""},
140#line 14 "scripts/genksyms/keywords.gperf" 137#line 22 "scripts/genksyms/keywords.gperf"
138 {"__volatile__", VOLATILE_KEYW},
139#line 5 "scripts/genksyms/keywords.gperf"
140 {"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW},
141#line 25 "scripts/genksyms/keywords.gperf"
142 {"_restrict", RESTRICT_KEYW},
143 {""},
144#line 12 "scripts/genksyms/keywords.gperf"
145 {"__attribute", ATTRIBUTE_KEYW},
146#line 6 "scripts/genksyms/keywords.gperf"
147 {"EXPORT_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
148#line 16 "scripts/genksyms/keywords.gperf"
141 {"__extension__", EXTENSION_KEYW}, 149 {"__extension__", EXTENSION_KEYW},
142#line 35 "scripts/genksyms/keywords.gperf" 150#line 37 "scripts/genksyms/keywords.gperf"
143 {"enum", ENUM_KEYW}, 151 {"enum", ENUM_KEYW},
144#line 19 "scripts/genksyms/keywords.gperf" 152#line 8 "scripts/genksyms/keywords.gperf"
145 {"__volatile", VOLATILE_KEYW}, 153 {"EXPORT_UNUSED_SYMBOL", EXPORT_SYMBOL_KEYW},
146#line 36 "scripts/genksyms/keywords.gperf" 154#line 38 "scripts/genksyms/keywords.gperf"
147 {"extern", EXTERN_KEYW}, 155 {"extern", EXTERN_KEYW},
148 {""}, 156 {""},
149#line 17 "scripts/genksyms/keywords.gperf" 157#line 19 "scripts/genksyms/keywords.gperf"
150 {"__signed", SIGNED_KEYW}, 158 {"__signed", SIGNED_KEYW},
151#line 7 "scripts/genksyms/keywords.gperf" 159#line 9 "scripts/genksyms/keywords.gperf"
152 {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW}, 160 {"EXPORT_UNUSED_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
153 {""}, 161#line 49 "scripts/genksyms/keywords.gperf"
154#line 51 "scripts/genksyms/keywords.gperf" 162 {"union", UNION_KEYW},
163#line 53 "scripts/genksyms/keywords.gperf"
155 {"typeof", TYPEOF_KEYW}, 164 {"typeof", TYPEOF_KEYW},
156#line 46 "scripts/genksyms/keywords.gperf" 165#line 48 "scripts/genksyms/keywords.gperf"
157 {"typedef", TYPEDEF_KEYW}, 166 {"typedef", TYPEDEF_KEYW},
158#line 15 "scripts/genksyms/keywords.gperf" 167#line 17 "scripts/genksyms/keywords.gperf"
159 {"__inline", INLINE_KEYW}, 168 {"__inline", INLINE_KEYW},
160#line 31 "scripts/genksyms/keywords.gperf" 169#line 33 "scripts/genksyms/keywords.gperf"
161 {"auto", AUTO_KEYW}, 170 {"auto", AUTO_KEYW},
162#line 47 "scripts/genksyms/keywords.gperf" 171#line 21 "scripts/genksyms/keywords.gperf"
163 {"union", UNION_KEYW}, 172 {"__volatile", VOLATILE_KEYW},
164 {""}, {""},
165#line 48 "scripts/genksyms/keywords.gperf"
166 {"unsigned", UNSIGNED_KEYW},
167#line 49 "scripts/genksyms/keywords.gperf"
168 {"void", VOID_KEYW},
169#line 42 "scripts/genksyms/keywords.gperf"
170 {"short", SHORT_KEYW},
171 {""}, {""}, 173 {""}, {""},
172#line 50 "scripts/genksyms/keywords.gperf" 174#line 50 "scripts/genksyms/keywords.gperf"
173 {"volatile", VOLATILE_KEYW}, 175 {"unsigned", UNSIGNED_KEYW},
174 {""},
175#line 37 "scripts/genksyms/keywords.gperf"
176 {"float", FLOAT_KEYW},
177#line 34 "scripts/genksyms/keywords.gperf"
178 {"double", DOUBLE_KEYW},
179 {""}, 176 {""},
180#line 5 "scripts/genksyms/keywords.gperf" 177#line 44 "scripts/genksyms/keywords.gperf"
181 {"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW}, 178 {"short", SHORT_KEYW},
182 {""}, {""}, 179#line 40 "scripts/genksyms/keywords.gperf"
183#line 38 "scripts/genksyms/keywords.gperf"
184 {"inline", INLINE_KEYW}, 180 {"inline", INLINE_KEYW},
185#line 6 "scripts/genksyms/keywords.gperf"
186 {"EXPORT_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
187#line 41 "scripts/genksyms/keywords.gperf"
188 {"register", REGISTER_KEYW},
189 {""}, 181 {""},
190#line 22 "scripts/genksyms/keywords.gperf" 182#line 52 "scripts/genksyms/keywords.gperf"
183 {"volatile", VOLATILE_KEYW},
184#line 42 "scripts/genksyms/keywords.gperf"
185 {"long", LONG_KEYW},
186#line 24 "scripts/genksyms/keywords.gperf"
191 {"_Bool", BOOL_KEYW}, 187 {"_Bool", BOOL_KEYW},
192#line 43 "scripts/genksyms/keywords.gperf"
193 {"signed", SIGNED_KEYW},
194 {""}, {""}, 188 {""}, {""},
195#line 40 "scripts/genksyms/keywords.gperf" 189#line 43 "scripts/genksyms/keywords.gperf"
196 {"long", LONG_KEYW} 190 {"register", REGISTER_KEYW},
191#line 51 "scripts/genksyms/keywords.gperf"
192 {"void", VOID_KEYW},
193#line 39 "scripts/genksyms/keywords.gperf"
194 {"float", FLOAT_KEYW},
195#line 36 "scripts/genksyms/keywords.gperf"
196 {"double", DOUBLE_KEYW},
197 {""}, {""}, {""}, {""},
198#line 45 "scripts/genksyms/keywords.gperf"
199 {"signed", SIGNED_KEYW}
197 }; 200 };
198 201
199 if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH) 202 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; }
5EXPORT_SYMBOL, EXPORT_SYMBOL_KEYW 5EXPORT_SYMBOL, EXPORT_SYMBOL_KEYW
6EXPORT_SYMBOL_GPL, EXPORT_SYMBOL_KEYW 6EXPORT_SYMBOL_GPL, EXPORT_SYMBOL_KEYW
7EXPORT_SYMBOL_GPL_FUTURE, EXPORT_SYMBOL_KEYW 7EXPORT_SYMBOL_GPL_FUTURE, EXPORT_SYMBOL_KEYW
8EXPORT_UNUSED_SYMBOL, EXPORT_SYMBOL_KEYW
9EXPORT_UNUSED_SYMBOL_GPL, EXPORT_SYMBOL_KEYW
8__asm, ASM_KEYW 10__asm, ASM_KEYW
9__asm__, ASM_KEYW 11__asm__, ASM_KEYW
10__attribute, ATTRIBUTE_KEYW 12__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)
130static int symbol_valid(struct sym_entry *s) 130static int symbol_valid(struct sym_entry *s)
131{ 131{
132 /* Symbols which vary between passes. Passes 1 and 2 must have 132 /* Symbols which vary between passes. Passes 1 and 2 must have
133 * identical symbol lists. The kallsyms_* symbols below are only added 133 * identical symbol lists.
134 * after pass 1, they would be included in pass 2 when --all-symbols is
135 * specified so exclude them to get a stable symbol list.
136 */ 134 */
137 static char *special_symbols[] = { 135 static char *special_symbols[] = {
138 "kallsyms_addresses",
139 "kallsyms_num_syms",
140 "kallsyms_names",
141 "kallsyms_markers",
142 "kallsyms_token_table",
143 "kallsyms_token_index",
144
145 /* Exclude linker generated symbols which vary between passes */ 136 /* Exclude linker generated symbols which vary between passes */
146 "_SDA_BASE_", /* ppc */ 137 "_SDA_BASE_", /* ppc */
147 "_SDA2_BASE_", /* ppc */ 138 "_SDA2_BASE_", /* ppc */
@@ -173,7 +164,9 @@ static int symbol_valid(struct sym_entry *s)
173 } 164 }
174 165
175 /* Exclude symbols which vary between passes. */ 166 /* Exclude symbols which vary between passes. */
176 if (strstr((char *)s->sym + offset, "_compiled.")) 167 if (strstr((char *)s->sym + offset, "_compiled.") ||
168 strncmp((char*)s->sym + offset, "__compound_literal.", 19) == 0 ||
169 strncmp((char*)s->sym + offset, "__compound_literal$", 19) == 0)
177 return 0; 170 return 0;
178 171
179 for (i = 0; special_symbols[i]; i++) 172 for (i = 0; special_symbols[i]; i++)
@@ -550,8 +543,10 @@ int main(int argc, char **argv)
550 usage(); 543 usage();
551 544
552 read_map(stdin); 545 read_map(stdin);
553 sort_symbols(); 546 if (table_cnt) {
554 optimize_token_table(); 547 sort_symbols();
548 optimize_token_table();
549 }
555 write_src(); 550 write_src();
556 551
557 return 0; 552 return 0;
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 15:13:26 -0500