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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2014-07-27 07:28:01 +0930
committerRusty Russell <rusty@rustcorp.com.au>2014-07-27 20:52:46 +0930
commita0d8f8037468a3b5f964417f71853ccf301b9f39 (patch)
treec85a06971f7283667825dd71463e36d5a0472e0c /scripts/mod
parentfcd38ed0ff263156c3917c70c2fb0b7e91bfeab1 (diff)
scripts: modpost: Remove numeric suffix pattern matching
For several years, the pattern "foo$" has effectively been treated as equivalent to "foo" due to a bug in the (misnamed) helper number_prefix(). This hasn't been observed to cause any problems, so remove the broken $ functionality and change all foo$ patterns to foo. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'scripts/mod')
-rw-r--r--scripts/mod/modpost.c49
1 files changed, 10 insertions, 39 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 5ba203b9eddf..091d90573b63 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -772,32 +772,10 @@ static const char *sech_name(struct elf_info *elf, Elf_Shdr *sechdr)
sechdr->sh_name;
}
-/* if sym is empty or point to a string
- * like ".[0-9]+" then return 1.
- * This is the optional prefix added by ld to some sections
- */
-static int number_prefix(const char *sym)
-{
- if (*sym++ == '\0')
- return 1;
- if (*sym != '.')
- return 0;
- do {
- char c = *sym++;
- if (c < '0' || c > '9')
- return 0;
- } while (*sym);
- return 1;
-}
-
/* The pattern is an array of simple patterns.
* "foo" will match an exact string equal to "foo"
* "*foo" will match a string that ends with "foo"
* "foo*" will match a string that begins with "foo"
- * "foo$" will match a string equal to "foo" or "foo.1"
- * where the '1' can be any number including several digits.
- * The $ syntax is for sections where ld append a dot number
- * to make section name unique.
*/
static int match(const char *sym, const char * const pat[])
{
@@ -816,13 +794,6 @@ static int match(const char *sym, const char * const pat[])
if (strncmp(sym, p, strlen(p) - 1) == 0)
return 1;
}
- /* "foo$" */
- else if (*endp == '$') {
- if (strncmp(sym, p, strlen(p) - 1) == 0) {
- if (number_prefix(sym + strlen(p) - 1))
- return 1;
- }
- }
/* no wildcards */
else {
if (strcmp(p, sym) == 0)
@@ -880,20 +851,20 @@ static void check_section(const char *modname, struct elf_info *elf,
#define ALL_INIT_DATA_SECTIONS \
- ".init.setup$", ".init.rodata$", ".meminit.rodata$", \
- ".init.data$", ".meminit.data$"
+ ".init.setup", ".init.rodata", ".meminit.rodata", \
+ ".init.data", ".meminit.data"
#define ALL_EXIT_DATA_SECTIONS \
- ".exit.data$", ".memexit.data$"
+ ".exit.data", ".memexit.data"
#define ALL_INIT_TEXT_SECTIONS \
- ".init.text$", ".meminit.text$"
+ ".init.text", ".meminit.text"
#define ALL_EXIT_TEXT_SECTIONS \
- ".exit.text$", ".memexit.text$"
+ ".exit.text", ".memexit.text"
#define ALL_PCI_INIT_SECTIONS \
- ".pci_fixup_early$", ".pci_fixup_header$", ".pci_fixup_final$", \
- ".pci_fixup_enable$", ".pci_fixup_resume$", \
- ".pci_fixup_resume_early$", ".pci_fixup_suspend$"
+ ".pci_fixup_early", ".pci_fixup_header", ".pci_fixup_final", \
+ ".pci_fixup_enable", ".pci_fixup_resume", \
+ ".pci_fixup_resume_early", ".pci_fixup_suspend"
#define ALL_XXXINIT_SECTIONS MEM_INIT_SECTIONS
#define ALL_XXXEXIT_SECTIONS MEM_EXIT_SECTIONS
@@ -901,8 +872,8 @@ static void check_section(const char *modname, struct elf_info *elf,
#define ALL_INIT_SECTIONS INIT_SECTIONS, ALL_XXXINIT_SECTIONS
#define ALL_EXIT_SECTIONS EXIT_SECTIONS, ALL_XXXEXIT_SECTIONS
-#define DATA_SECTIONS ".data$", ".data.rel$"
-#define TEXT_SECTIONS ".text$", ".text.unlikely$"
+#define DATA_SECTIONS ".data", ".data.rel"
+#define TEXT_SECTIONS ".text", ".text.unlikely"
#define INIT_SECTIONS ".init.*"
#define MEM_INIT_SECTIONS ".meminit.*"

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