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authorLi Yang <leoli@freescale.com>2007-05-14 18:04:28 +0800
committerSam Ravnborg <sam@ravnborg.org>2007-05-19 09:11:57 +0200
commitcd5477911fc9f5cc64678e2b95cdd606c59a11b5 (patch)
treed893f07b0040d36dfc60040dc695384e9afcf103 /scripts/mod
parentf892b7d480eec809a5dfbd6e65742b3f3155e50e (diff)
downloadop-kernel-dev-cd5477911fc9f5cc64678e2b95cdd606c59a11b5.zip
op-kernel-dev-cd5477911fc9f5cc64678e2b95cdd606c59a11b5.tar.gz
kbuild: add "Section mismatch" warning whitelist for powerpc
This patch fixes the following class of "Section mismatch" warnings when building powerpc platforms. WARNING: arch/powerpc/kernel/built-in.o - Section mismatch: reference to .init.data:.got2 from prom_entry (offset 0x0) WARNING: arch/powerpc/platforms/built-in.o - Section mismatch: reference to .init.text:mpc8313_rdb_probe from .machine.desc after 'mach_mpc8313_rdb' (at offset 0x4) .... Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts/mod')
-rw-r--r--scripts/mod/modpost.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index ce7e0d1..2909391 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -650,9 +650,10 @@ static int strrcmp(const char *s, const char *sub)
* tosec = .init.text
*
* Pattern 10:
- * ia64 has machvec table for each platform. It is mixture of function
- * pointer of .init.text and .text.
- * fromsec = .machvec
+ * ia64 has machvec table for each platform and
+ * powerpc has a machine desc table for each platform.
+ * It is mixture of function pointers of .init.text and .text.
+ * fromsec = .machvec | .machine.desc
**/
static int secref_whitelist(const char *modname, const char *tosec,
const char *fromsec, const char *atsym,
@@ -751,7 +752,8 @@ static int secref_whitelist(const char *modname, const char *tosec,
return 1;
/* Check for pattern 10 */
- if (strcmp(fromsec, ".machvec") == 0)
+ if ((strcmp(fromsec, ".machvec") == 0) ||
+ (strcmp(fromsec, ".machine.desc") == 0))
return 1;
return 0;
@@ -887,6 +889,11 @@ static void warn_sec_mismatch(const char *modname, const char *fromsec,
elf->strtab + before->st_name, refsymname))
return;
+ /* fromsec whitelist - without a valid 'before'
+ * powerpc has a GOT table in .got2 section */
+ if (strcmp(fromsec, ".got2") == 0)
+ return;
+
if (before && after) {
warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s "
"(between '%s' and '%s')\n",
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