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MIPS: fix loading of modules with unresolved weak symbols 

SVN-Revision: 16823
owl
Gabor Juhos 2009-07-13 09:34:49 +00:00
parent ddbd14a23b
commit 091e028239
3 changed files with 126 additions and 0 deletions
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42
target/linux/generic-2.6/patches-2.6.28/025-mips_fix_loading_of_modules_with_unresolved_weak_sy.patch Normal file
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@ -0,0 +1,42 @@
From 819b4bda18d62b52d04789c4a8d4fc3fbf9ce242 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 13 Jul 2009 10:46:49 +0200
Subject: [PATCH] MIPS: fix loading of modules with unresolved weak symbols
Loading of modules with unresolved weak symbols fails on MIPS
since '88173507e4fc1e7ecd111b0565e8cba0cb7dae6d'.
Modules: handle symbols that have a zero value
The module subsystem cannot handle symbols that are zero. If symbols
are present that have a zero value then the module resolver prints out a
message that these symbols are unresolved.
We have to use IS_ERR_VALUE() to check that a symbol has been resolved
or not.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
arch/mips/kernel/module.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -303,7 +303,7 @@ int apply_relocate(Elf_Shdr *sechdrs, co
/* This is the symbol it is referring to */
sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+ ELF_MIPS_R_SYM(rel[i]);
- if (!sym->st_value) {
+ if (IS_ERR_VALUE(sym->st_value)) {
/* Ignore unresolved weak symbol */
if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
continue;
@@ -343,7 +343,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs
/* This is the symbol it is referring to */
sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+ ELF_MIPS_R_SYM(rel[i]);
- if (!sym->st_value) {
+ if (IS_ERR_VALUE(sym->st_value)) {
/* Ignore unresolved weak symbol */
if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
continue;

42
target/linux/generic-2.6/patches-2.6.29/025-mips_fix_loading_of_modules_with_unresolved_weak_sy.patch Normal file
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@ -0,0 +1,42 @@
From 819b4bda18d62b52d04789c4a8d4fc3fbf9ce242 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 13 Jul 2009 10:46:49 +0200
Subject: [PATCH] MIPS: fix loading of modules with unresolved weak symbols
Loading of modules with unresolved weak symbols fails on MIPS
since '88173507e4fc1e7ecd111b0565e8cba0cb7dae6d'.
Modules: handle symbols that have a zero value
The module subsystem cannot handle symbols that are zero. If symbols
are present that have a zero value then the module resolver prints out a
message that these symbols are unresolved.
We have to use IS_ERR_VALUE() to check that a symbol has been resolved
or not.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
arch/mips/kernel/module.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -303,7 +303,7 @@ int apply_relocate(Elf_Shdr *sechdrs, co
/* This is the symbol it is referring to */
sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+ ELF_MIPS_R_SYM(rel[i]);
- if (!sym->st_value) {
+ if (IS_ERR_VALUE(sym->st_value)) {
/* Ignore unresolved weak symbol */
if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
continue;
@@ -343,7 +343,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs
/* This is the symbol it is referring to */
sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+ ELF_MIPS_R_SYM(rel[i]);
- if (!sym->st_value) {
+ if (IS_ERR_VALUE(sym->st_value)) {
/* Ignore unresolved weak symbol */
if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
continue;

42
target/linux/generic-2.6/patches-2.6.30/026-mips_fix_loading_of_modules_with_unresolved_weak_sy.patch Normal file
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@ -0,0 +1,42 @@
From 819b4bda18d62b52d04789c4a8d4fc3fbf9ce242 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 13 Jul 2009 10:46:49 +0200
Subject: [PATCH] MIPS: fix loading of modules with unresolved weak symbols
Loading of modules with unresolved weak symbols fails on MIPS
since '88173507e4fc1e7ecd111b0565e8cba0cb7dae6d'.
Modules: handle symbols that have a zero value
The module subsystem cannot handle symbols that are zero. If symbols
are present that have a zero value then the module resolver prints out a
message that these symbols are unresolved.
We have to use IS_ERR_VALUE() to check that a symbol has been resolved
or not.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
arch/mips/kernel/module.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -303,7 +303,7 @@ int apply_relocate(Elf_Shdr *sechdrs, co
/* This is the symbol it is referring to */
sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+ ELF_MIPS_R_SYM(rel[i]);
- if (!sym->st_value) {
+ if (IS_ERR_VALUE(sym->st_value)) {
/* Ignore unresolved weak symbol */
if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
continue;
@@ -343,7 +343,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs
/* This is the symbol it is referring to */
sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+ ELF_MIPS_R_SYM(rel[i]);
- if (!sym->st_value) {
+ if (IS_ERR_VALUE(sym->st_value)) {
/* Ignore unresolved weak symbol */
if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
continue;