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authorQuentin Casasnovas <quentin.casasnovas@oracle.com>2015-04-13 20:43:17 +0930
committerRusty Russell <rusty@rustcorp.com.au>2015-04-13 21:02:59 +0930
commit644e8f14cb3bca5c66f6ddd944d9d26074eec46e (patch)
treecb601153ec2bc726e482fc49ae7dfd5af0639f00 /scripts
parent157d1972d079207332d31a761cdfb81598455e0a (diff)
downloadlinux-linaro-stable-644e8f14cb3bca5c66f6ddd944d9d26074eec46e.tar.gz
modpost: add handler function pointer to sectioncheck.
This will be useful when we want to have special handlers which need to go through more hops to print useful information to the user. Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/mod/modpost.c68
1 files changed, 42 insertions, 26 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 8cef46b18dc6..0f48f8b97b17 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -930,6 +930,10 @@ struct sectioncheck {
const char *good_tosec[20];
enum mismatch mismatch;
const char *symbol_white_list[20];
+ void (*handler)(const char *modname, struct elf_info *elf,
+ const struct sectioncheck* const mismatch,
+ Elf_Rela *r, Elf_Sym *sym, const char *fromsec);
+
};
static const struct sectioncheck sectioncheck[] = {
@@ -1417,37 +1421,49 @@ static void report_sec_mismatch(const char *modname,
fprintf(stderr, "\n");
}
-static void check_section_mismatch(const char *modname, struct elf_info *elf,
- Elf_Rela *r, Elf_Sym *sym, const char *fromsec)
+static void default_mismatch_handler(const char *modname, struct elf_info *elf,
+ const struct sectioncheck* const mismatch,
+ Elf_Rela *r, Elf_Sym *sym, const char *fromsec)
{
const char *tosec;
- const struct sectioncheck *mismatch;
+ Elf_Sym *to;
+ Elf_Sym *from;
+ const char *tosym;
+ const char *fromsym;
tosec = sec_name(elf, get_secindex(elf, sym));
- mismatch = section_mismatch(fromsec, tosec);
+ from = find_elf_symbol2(elf, r->r_offset, fromsec);
+ fromsym = sym_name(elf, from);
+ to = find_elf_symbol(elf, r->r_addend, sym);
+ tosym = sym_name(elf, to);
+
+ if (!strncmp(fromsym, "reference___initcall",
+ sizeof("reference___initcall")-1))
+ return;
+
+ /* check whitelist - we may ignore it */
+ if (secref_whitelist(mismatch,
+ fromsec, fromsym, tosec, tosym)) {
+ report_sec_mismatch(modname, mismatch,
+ fromsec, r->r_offset, fromsym,
+ is_function(from), tosec, tosym,
+ is_function(to));
+ }
+}
+
+static void check_section_mismatch(const char *modname, struct elf_info *elf,
+ Elf_Rela *r, Elf_Sym *sym, const char *fromsec)
+{
+ const char *tosec = sec_name(elf, get_secindex(elf, sym));;
+ const struct sectioncheck *mismatch = section_mismatch(fromsec, tosec);
+
if (mismatch) {
- Elf_Sym *to;
- Elf_Sym *from;
- const char *tosym;
- const char *fromsym;
-
- from = find_elf_symbol2(elf, r->r_offset, fromsec);
- fromsym = sym_name(elf, from);
- to = find_elf_symbol(elf, r->r_addend, sym);
- tosym = sym_name(elf, to);
-
- if (!strncmp(fromsym, "reference___initcall",
- sizeof("reference___initcall")-1))
- return;
-
- /* check whitelist - we may ignore it */
- if (secref_whitelist(mismatch,
- fromsec, fromsym, tosec, tosym)) {
- report_sec_mismatch(modname, mismatch,
- fromsec, r->r_offset, fromsym,
- is_function(from), tosec, tosym,
- is_function(to));
- }
+ if (mismatch->handler)
+ mismatch->handler(modname, elf, mismatch,
+ r, sym, fromsec);
+ else
+ default_mismatch_handler(modname, elf, mismatch,
+ r, sym, fromsec);
}
}