diff options
| author | Graf Yang <graf.yang@analog.com> | 2008-11-18 17:48:22 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-11-18 17:48:22 +0800 |
| commit | 8f65873e47784a390949f0d61e5692dbf2a8253e (patch) | |
| tree | 4d9509bf5e52ebac190d79de04b783829d44f49e /arch/blackfin/kernel/module.c | |
| parent | b8a989893cbdeb6c97a7b5af5f38fb0e480235f9 (diff) | |
Blackfin arch: SMP supporting patchset: Blackfin kernel and memory management code
Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like
In this patch, we provide SMP extend to Blackfin kernel and memory management code
Singed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/kernel/module.c')
| -rw-r--r-- | arch/blackfin/kernel/module.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/blackfin/kernel/module.c b/arch/blackfin/kernel/module.c index e1bebc80a5b..2e14cadd430 100644 --- a/arch/blackfin/kernel/module.c +++ b/arch/blackfin/kernel/module.c @@ -343,7 +343,13 @@ apply_relocate_add(Elf_Shdr * sechdrs, const char *strtab, pr_debug("location is %x, value is %x type is %d \n", (unsigned int) location32, value, ELF32_R_TYPE(rel[i].r_info)); - +#ifdef CONFIG_SMP + if ((unsigned long)location16 >= COREB_L1_DATA_A_START) { + printk(KERN_ERR "module %s: cannot relocate in L1: %u (SMP kernel)", + mod->name, ELF32_R_TYPE(rel[i].r_info)); + return -ENOEXEC; + } +#endif switch (ELF32_R_TYPE(rel[i].r_info)) { case R_pcrel24: @@ -436,6 +442,7 @@ module_finalize(const Elf_Ehdr * hdr, { unsigned int i, strindex = 0, symindex = 0; char *secstrings; + long err = 0; secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; @@ -460,8 +467,10 @@ module_finalize(const Elf_Ehdr * hdr, (strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0) || ((strcmp(".rela.text", secstrings + sechdrs[i].sh_name) == 0) && (hdr->e_flags & (EF_BFIN_CODE_IN_L1|EF_BFIN_CODE_IN_L2))))) { - apply_relocate_add((Elf_Shdr *) sechdrs, strtab, + err = apply_relocate_add((Elf_Shdr *) sechdrs, strtab, symindex, i, mod); + if (err < 0) + return -ENOEXEC; } } return 0; |