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binfmt: move more stuff undef CONFIG_COREDUMP 

struct linux_binfmt::core_dump and struct min_coredump::min_coredump
are used under CONFIG_COREDUMP only. Shrink those embedded configs
a bit.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/YglbIFyN+OtwVyjW@localhost.localdomain
This commit is contained in:
Alexey Dobriyan 2022-02-13 22:25:20 +03:00 committed by Kees Cook
parent 9132c3947b
commit d65bc29be0
4 changed files with 7 additions and 1 deletions
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2
fs/binfmt_elf.c
View File

@ -101,8 +101,10 @@ static struct linux_binfmt elf_format = {
.module = THIS_MODULE,
.load_binary = load_elf_binary,
.load_shlib = load_elf_library,
#ifdef CONFIG_COREDUMP
.core_dump = elf_core_dump,
.min_coredump = ELF_EXEC_PAGESIZE,
#endif
};
#define BAD_ADDR(x) (unlikely((unsigned long)(x) >= TASK_SIZE))

2
fs/binfmt_elf_fdpic.c
View File

@ -83,8 +83,8 @@ static struct linux_binfmt elf_fdpic_format = {
.load_binary = load_elf_fdpic_binary,
#ifdef CONFIG_ELF_CORE
.core_dump = elf_fdpic_core_dump,
#endif
.min_coredump = ELF_EXEC_PAGESIZE,
#endif
};
static int __init init_elf_fdpic_binfmt(void)

2
fs/binfmt_flat.c
View File

@ -102,8 +102,10 @@ static int flat_core_dump(struct coredump_params *cprm);
static struct linux_binfmt flat_format = {
.module = THIS_MODULE,
.load_binary = load_flat_binary,
#ifdef CONFIG_COREDUMP
.core_dump = flat_core_dump,
.min_coredump = PAGE_SIZE
#endif
};
/****************************************************************************/

2
include/linux/binfmts.h
View File

@ -98,8 +98,10 @@ struct linux_binfmt {
struct module *module;
int (*load_binary)(struct linux_binprm *);
int (*load_shlib)(struct file *);
#ifdef CONFIG_COREDUMP
int (*core_dump)(struct coredump_params *cprm);
unsigned long min_coredump; /* minimal dump size */
#endif
} __randomize_layout;
extern void __register_binfmt(struct linux_binfmt *fmt, int insert);