commit 7d02b490e93c199a15b3c4bce1c393588c1300ca
author Andi Kleen <ak@linux.intel.com> Sat Feb 08 09:01:12 2014 +0100
committer H. Peter Anvin <hpa@linux.intel.com> Thu Feb 13 20:24:58 2014 -0800
tree 3f899f31df5ee2a23e1df73a9b18a36af02677e4
parent 77ab21adae509c5540956729e2d03bc1a59bc82a

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>

scripts/mod/modpost.c

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 1f1b154..f91dd45 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1684,6 +1684,19 @@
 	}
 }
 
+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 @@
 	}
 
 	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);

scripts/mod/modpost.h

diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 51207e4..168b43d 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -127,7 +127,7 @@
 	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;