diff options
| author |   Helge Deller <deller@gmx.de> | 2008-12-31 12:31:18 +0100 |
|---|---|---|
| committer |   Rusty Russell <rusty@rustcorp.com.au> | 2009-01-05 08:40:13 +1030 |
| commit | 088af9a6e05d51e7c3dc85d45d8b7a52c3ee08d7 (patch) | |
| tree | 86e2dd6be7fbc17cb01a42fc11f5eef794a824df /kernel/module.c | |
| parent | module: fix warning of unused function when !CONFIG_PROC_FS (diff) | |
| download | linux-dev-088af9a6e05d51e7c3dc85d45d8b7a52c3ee08d7.tar.xz linux-dev-088af9a6e05d51e7c3dc85d45d8b7a52c3ee08d7.zip | |
module: fix module loading failure of large kernel modules for parisc
When creating the final layout of a kernel module in memory, allow the
module loader to reserve some additional memory in front of a given section.
This is currently only needed for the parisc port which needs to put the
stub entries there to fulfill the 17/22bit PCREL relocations with large
kernel modules like xfs.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (renamed fn)
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/kernel/module.c b/kernel/module.c index d3d254571bda..4299aefc20b8 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1578,11 +1578,21 @@ static int simplify_symbols(Elf_Shdr *sechdrs, return ret; } +/* Additional bytes needed by arch in front of individual sections */ +unsigned int __weak arch_mod_section_prepend(struct module *mod, + unsigned int section) +{ + /* default implementation just returns zero */ + return 0; +} + /* Update size with this section: return offset. */ -static long get_offset(unsigned int *size, Elf_Shdr *sechdr) +static long get_offset(struct module *mod, unsigned int *size, + Elf_Shdr *sechdr, unsigned int section) { long ret; + *size += arch_mod_section_prepend(mod, section); ret = ALIGN(*size, sechdr->sh_addralign ?: 1); *size = ret + sechdr->sh_size; return ret; @@ -1622,7 +1632,7 @@ static void layout_sections(struct module *mod, || strncmp(secstrings + s->sh_name, ".init", 5) == 0) continue; - s->sh_entsize = get_offset(&mod->core_size, s); + s->sh_entsize = get_offset(mod, &mod->core_size, s, i); DEBUGP("\t%s\n", secstrings + s->sh_name); } if (m == 0) @@ -1640,7 +1650,7 @@ static void layout_sections(struct module *mod, || strncmp(secstrings + s->sh_name, ".init", 5) != 0) continue; - s->sh_entsize = (get_offset(&mod->init_size, s) + s->sh_entsize = (get_offset(mod, &mod->init_size, s, i) | INIT_OFFSET_MASK); DEBUGP("\t%s\n", secstrings + s->sh_name); } |