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| author | H. J. Lu <hjl.tools@gmail.com> | 2012-02-14 22:34:52 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2012-02-20 21:48:48 +0100 |
| commit | 0953f65d5db728df0fdc3d510a71fd811a3be758 (patch) | |
| tree | 2f1c0f221a31da94f4b8565db12b945822af98b4 /fs/binfmt_elf.c | |
| parent | compat: Create compat_sys_p{read,write}v64 (diff) | |
| download | linux-0953f65d5db728df0fdc3d510a71fd811a3be758.tar.xz linux-0953f65d5db728df0fdc3d510a71fd811a3be758.zip | |
elf: Allow core dump-related fields to be overridden
Allow some core dump-related fields to be overridden. This allows
core dumps to work correctly for x32.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Diffstat (limited to 'fs/binfmt_elf.c')
| -rw-r--r-- | fs/binfmt_elf.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index bcb884e2d613..43ba478c3386 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -1390,6 +1390,22 @@ static void do_thread_regset_writeback(struct task_struct *task, regset->writeback(task, regset, 1); } +#ifndef PR_REG_SIZE +#define PR_REG_SIZE(S) sizeof(S) +#endif + +#ifndef PRSTATUS_SIZE +#define PRSTATUS_SIZE(S) sizeof(S) +#endif + +#ifndef PR_REG_PTR +#define PR_REG_PTR(S) (&((S)->pr_reg)) +#endif + +#ifndef SET_PR_FPVALID +#define SET_PR_FPVALID(S, V) ((S)->pr_fpvalid = (V)) +#endif + static int fill_thread_core_info(struct elf_thread_core_info *t, const struct user_regset_view *view, long signr, size_t *total) @@ -1404,11 +1420,11 @@ static int fill_thread_core_info(struct elf_thread_core_info *t, */ fill_prstatus(&t->prstatus, t->task, signr); (void) view->regsets[0].get(t->task, &view->regsets[0], - 0, sizeof(t->prstatus.pr_reg), - &t->prstatus.pr_reg, NULL); + 0, PR_REG_SIZE(t->prstatus.pr_reg), + PR_REG_PTR(&t->prstatus), NULL); fill_note(&t->notes[0], "CORE", NT_PRSTATUS, - sizeof(t->prstatus), &t->prstatus); + PRSTATUS_SIZE(t->prstatus), &t->prstatus); *total += notesize(&t->notes[0]); do_thread_regset_writeback(t->task, &view->regsets[0]); @@ -1438,7 +1454,7 @@ static int fill_thread_core_info(struct elf_thread_core_info *t, regset->core_note_type, size, data); else { - t->prstatus.pr_fpvalid = 1; + SET_PR_FPVALID(&t->prstatus, 1); fill_note(&t->notes[i], "CORE", NT_PRFPREG, size, data); } |