elf: Allow core dump-related fields to be overridden (0953f65d) · Commits · 戴 / test

fs/binfmt_elf.c

+20 −4

Original line number	Diff line number	Diff line
		@@ -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);
		}