diff options
| author | Andi Kleen <ak@linux.intel.com> | 2014-02-08 09:01:12 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-02-13 20:24:58 -0800 |
| commit | 7d02b490e93c199a15b3c4bce1c393588c1300ca (patch) | |
| tree | 3f899f31df5ee2a23e1df73a9b18a36af02677e4 /scripts | |
| parent | 77ab21adae509c5540956729e2d03bc1a59bc82a (diff) | |
| download | lwn-7d02b490e93c199a15b3c4bce1c393588c1300ca.tar.gz lwn-7d02b490e93c199a15b3c4bce1c393588c1300ca.zip | |
Kbuild, lto: Drop .number postfixes in modpost
LTO turns all global symbols effectively into statics. This
has the side effect that they all have a .NUMBER postfix to make
them unique. In modpost drop this postfix because it confuses
it.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1391846481-31491-8-git-send-email-ak@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/mod/modpost.c | 15 | ||||
| -rw-r--r-- | scripts/mod/modpost.h | 2 |
2 files changed, 15 insertions, 2 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 1f1b1549f33f..f91dd4565b81 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1684,6 +1684,19 @@ static void check_sec_ref(struct module *mod, const char *modname, } } +static char *remove_dot(char *s) +{ + char *end; + int n = strcspn(s, "."); + + if (n > 0 && s[n] != 0) { + strtoul(s + n + 1, &end, 10); + if (end > s + n + 1 && (*end == '.' || *end == 0)) + s[n] = 0; + } + return s; +} + static void read_symbols(char *modname) { const char *symname; @@ -1722,7 +1735,7 @@ static void read_symbols(char *modname) } for (sym = info.symtab_start; sym < info.symtab_stop; sym++) { - symname = info.strtab + sym->st_name; + symname = remove_dot(info.strtab + sym->st_name); handle_modversions(mod, &info, sym, symname); handle_moddevtable(mod, &info, sym, symname); diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index 51207e4d5f8b..168b43dc0a59 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -127,7 +127,7 @@ struct elf_info { Elf_Section export_gpl_sec; Elf_Section export_unused_gpl_sec; Elf_Section export_gpl_future_sec; - const char *strtab; + char *strtab; char *modinfo; unsigned int modinfo_len; |