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Commit cde3f860 authored Oct 13, 2009 by Artem Bityutskiy Committed by Russell King Oct 14, 2009

ARM: 5759/1: Add register information of threads to coredump

Defines ELF_CORE_COPY_TASK_REGS so that CPU register information
of every thread is included in coredump. Without this, only the faulting
thread is coredumped.

Cc: Roger Quadros <ext-roger.quadros@nokia.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent a771fe6e

arch/arm/include/asm/elf.h

+3 −0

Original line number	Original line	Diff line number	Diff line
	@@ -98,6 +98,9 @@ extern int elf_check_arch(const struct elf32_hdr *);
	extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);		extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);
	#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)		#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)

			int dump_task_regs(struct task_struct t, elf_gregset_t elfregs);
			#define ELF_CORE_COPY_TASK_REGS dump_task_regs

	#define USE_ELF_CORE_DUMP		#define USE_ELF_CORE_DUMP
	#define ELF_EXEC_PAGESIZE 4096		#define ELF_EXEC_PAGESIZE 4096

arch/arm/kernel/process.c

+9 −0

Original line number	Original line	Diff line number	Diff line
	@@ -327,6 +327,15 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
	return 0;		return 0;
	}		}

			/*
			* Fill in the task's elfregs structure for a core dump.
			*/
			int dump_task_regs(struct task_struct t, elf_gregset_t elfregs)
			{
			elf_core_copy_regs(elfregs, task_pt_regs(t));
			return 1;
			}

	/*		/*
	* fill in the fpe structure for a core dump...		* fill in the fpe structure for a core dump...
	*/		*/