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new helper: dump_emit()

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dump_write() analog, takes core_dump_params instead of file,
keeps track of the amount written in cprm->written and checks for
cprm->limit.  Start using it in binfmt_elf.c...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2013-10-05 15:32:35 -04:00
parent 7d2f551f6d
commit ecc8c7725e
4 changed files with 40 additions and 37 deletions
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2
include/linux/coredump.h
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@@ -10,8 +10,10 @@
* These are the only things you should do on a core-file: use only these
* functions to write out all the necessary info.
*/
struct coredump_params;
extern int dump_write(struct file *file, const void *addr, int nr);
extern int dump_seek(struct file *file, loff_t off);
extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
#ifdef CONFIG_COREDUMP
extern void do_coredump(siginfo_t *siginfo);
#else