kernel/linux.git/scripts/mod/modpost.c, branch linux-2.6.34.y

kbuild: Fix modpost segfault

2010-08-02T17:30:19+00:00

commit 1c938663d58b5b2965976a6f54cc51b5d6f691aa upstream. Alan writes: > program: /home/alan/GitTrees/linux-2.6-mid-ref/scripts/mod/modpost -o > Module.symvers -S vmlinux.o > > Program received signal SIGSEGV, Segmentation fault. It just hit me. It's the offset calculation in reloc_location() which overflows: return (void *)elf->hdr + sechdrs[section].sh_offset + (r->r_offset - sechdrs[section].sh_addr); E.g. for the first rodata r entry: r->r_offset < sechdrs[section].sh_addr and the expression in the parenthesis produces 0xFFFFFFE0 or something equally wise. Reported-by: Alan Signed-off-by: Krzysztof Hałasa Tested-by: Alan Signed-off-by: Michal Marek Signed-off-by: Greg Kroah-Hartman

Merge branch 'for-33' of git://repo.or.cz/linux-kbuild

2009-12-17T15:23:42+00:00

* 'for-33' of git://repo.or.cz/linux-kbuild: (29 commits) net: fix for utsrelease.h moving to generated gen_init_cpio: fixed fwrite warning kbuild: fix make clean after mismerge kbuild: generate modules.builtin genksyms: properly consider EXPORT_UNUSED_SYMBOL{,_GPL}() score: add asm/asm-offsets.h wrapper unifdef: update to upstream revision 1.190 kbuild: specify absolute paths for cscope kbuild: create include/generated in silentoldconfig scripts/package: deb-pkg: use fakeroot if available scripts/package: add KBUILD_PKG_ROOTCMD variable scripts/package: tar-pkg: use tar --owner=root Kbuild: clean up marker net: add net_tstamp.h to headers_install kbuild: move utsrelease.h to include/generated kbuild: move autoconf.h to include/generated drop explicit include of autoconf.h kbuild: move compile.h to include/generated kbuild: drop include/asm kbuild: do not check for include/asm-$ARCH ... Fixed non-conflicting clean merge of modpost.c as per comments from Stephen Rothwell (modpost.c had grown an include of linux/autoconf.h that needed to be changed to generated/autoconf.h)

modpost: fix segfault with short symbol names

2009-12-15T05:58:37+00:00

memcmp() is wrong here, the symbol name can be shorter than KSYMTAB_PFX or CRC_PFX. Signed-off-by: Michal Marek Signed-off-by: Rusty Russell

Kbuild: clear marker out of modpost

2009-12-15T05:58:31+00:00

Remove the unnecessary functions and variables. Signed-off-by: Wenji Huang Signed-off-by: Michal Marek Signed-off-by: Rusty Russell

module: make MODULE_SYMBOL_PREFIX into a CONFIG option

2009-12-15T05:58:26+00:00

The next commit will require the use of MODULE_SYMBOL_PREFIX in .tmp_exports-asm.S. Currently it is mixed in with C structure definitions in "asm/module.h". Move the definition of this arch option into Kconfig, so it can be easily accessed by any code. This also lets modpost.c use the same definition. Previously modpost relied on a hardcoded list of architectures in mk_elfconfig.c. A build test for blackfin, one of the two MODULE_SYMBOL_PREFIX archs, showed the generated code was unchanged. vmlinux was identical save for build ids, and an apparently randomized suffix on a single "__key" symbol in the kallsyms data). Signed-off-by: Alan Jenkins Acked-by: Mike Frysinger (blackfin) CC: Sam Ravnborg Signed-off-by: Rusty Russell

Fix all -Wmissing-prototypes warnings in x86 defconfig

2009-09-23T14:39:28+00:00

Signed-off-by: Trevor Keith Cc: Sam Ravnborg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

kbuild: add hint about __refdata to modpost

2009-06-09T20:37:53+00:00

As requested by Guennadi Liakhovetski Cc: Guennadi Liakhovetski Signed-off-by: Sam Ravnborg

initconst adjustments

2009-06-09T20:37:43+00:00

- add .init.rodata to INIT_DATA, and group all initconst flavors together - move strings generated from __setup_param() into .init.rodata - add .*init.rodata to modpost's sets of init sections - make modpost warn about references between meminit and cpuinit as well as memexit and cpuexit sections (as CPU and memory hotplug are independently selectable features) Signed-off-by: Jan Beulich Signed-off-by: Sam Ravnborg

kbuild, modpost: fix unexpected non-allocatable warning with mips

2009-05-04T11:05:26+00:00

mips emit the following debug sections: .mdebug* and .pdr They were included in the check for non-allocatable section and caused modpost to warn. Manuel Lauss suggested to fix this by adding the relevant sections to the list of sections we do not check. Signed-off-by: Sam Ravnborg Reported-by: Manuel Lauss

kbuild, modpost: fix "unexpected non-allocatable" warning with SUSE gcc

2009-05-04T11:05:06+00:00

Jean reported that he saw one warning for each module like the one below: WARNING: arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.o (.comment.SUSE.OPTs): unexpected non-allocatable section. The warning appeared with the improved version of the check of the flags in the sections. That check already ignored sections named ".comment" - but SUSE store additional info in the comment section and has named it in a SUSE specific way. Therefore modpost failed to ignore the section. The fix is to extend the pattern so we ignore all sections that start with the name ".comment.". Signed-off-by: Sam Ravnborg Reported-by: Jean Delvare Tested-by: Jean Delvare