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authorJohn Williams <john.williams@petalogix.com>2009-07-23 14:56:49 +1000
committerMichal Simek <monstr@monstr.eu>2009-07-27 09:03:17 +0200
commitfadf2e60a6dc7267658fa0c9e3bef13c699c7e1f (patch)
tree1a3252df006b96a2d3b8f3e0782bd642585e9d38 /arch/microblaze
parentbfc0ca0d33e24fca5b89acb378a8a9712ffe22b6 (diff)
downloadlinux-fadf2e60a6dc7267658fa0c9e3bef13c699c7e1f.tar.bz2
microblaze: Get module loading working
New reloc type R_MICROBLAZE_32_PCREL_LO requires a null handler (no work to do). Remove legacy hack for broken linker pre gcc-4.1.1, that required us to extract an offset from the code, add it to the addend, then rewrite the instruction. Fixup the invalid reloc type error output. Boot tested with the xilinx_emaclite ethernet driver. Signed-off-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/kernel/module.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c
index 51414171326f..93a3871ea541 100644
--- a/arch/microblaze/kernel/module.c
+++ b/arch/microblaze/kernel/module.c
@@ -57,7 +57,6 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
Elf32_Sym *sym;
unsigned long int *location;
- unsigned long int locoffs;
unsigned long int value;
#if __GNUC__ < 4
unsigned long int old_value;
@@ -113,10 +112,12 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
break;
case R_MICROBLAZE_64_PCREL:
- locoffs = (location[0] & 0xFFFF) << 16 |
+#if __GNUC__ < 4
+ old_value = (location[0] & 0xFFFF) << 16 |
(location[1] & 0xFFFF);
- value -= (unsigned long int)(location) + 4 +
- locoffs;
+ value -= old_value;
+#endif
+ value -= (unsigned long int)(location) + 4;
location[0] = (location[0] & 0xFFFF0000) |
(value >> 16);
location[1] = (location[1] & 0xFFFF0000) |
@@ -125,6 +126,10 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
value);
break;
+ case R_MICROBLAZE_32_PCREL_LO:
+ pr_debug("R_MICROBLAZE_32_PCREL_LO\n");
+ break;
+
case R_MICROBLAZE_NONE:
pr_debug("R_MICROBLAZE_NONE\n");
break;
@@ -133,7 +138,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
printk(KERN_ERR "module %s: "
"Unknown relocation: %u\n",
module->name,
- ELF32_R_TYPE(rela->r_info));
+ ELF32_R_TYPE(rela[i].r_info));
return -ENOEXEC;
}
}