lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

modpost: support objects with more than 64k sections

Browse Source 
This patch makes modpost able to process object files with more than
64k sections. Needed for huge kernel builds (allyesconfig, for example)
with -ffunction-sections. 64k sections handling is covered, for example,
by this document:

"IA-64 gABI Proposal 74: Section Indexes"
http://www.codesourcery.com/public/cxx-abi/abi/prop-74-sindex.html

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Denys Vlasenko
2010-07-29 01:47:53 +02:00
committed by Michal Marek
parent 4696e2958b
commit 1ce53adf13
3 changed files with 122 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
scripts/mod/file2alias.c
View File

@ -839,16 +839,16 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
char *zeros = NULL;
/* We're looking for a section relative symbol */
if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum)
if (!sym->st_shndx || get_secindex(info, sym) >= info->num_sections)
return;
/* Handle all-NULL symbols allocated into .bss */
if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) {
if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
zeros = calloc(1, sym->st_size);
symval = zeros;
} else {
symval = (void *)info->hdr
+ info->sechdrs[sym->st_shndx].sh_offset
+ info->sechdrs[get_secindex(info, sym)].sh_offset
+ sym->st_value;
}