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MIPS: Remove old core dump functions

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Since the core dumper now uses regsets, the old core dump functions are
now unused. Remove them.

Signed-off-by: Alex Smith <alex@alex-smith.me.uk>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7456/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Alex Smith 2014-07-23 14:40:14 +01:00 committed by Ralf Baechle
parent a79ebea620
commit 30852ad003
3 changed files with 0 additions and 104 deletions
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17
arch/mips/include/asm/elf.h
View File

@ -339,23 +339,6 @@ do { \
#endif /* CONFIG_64BIT */
struct pt_regs;
struct task_struct;
extern void elf_dump_regs(elf_greg_t *, struct pt_regs *regs);
extern int dump_task_regs(struct task_struct *, elf_gregset_t *);
extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *);
#ifndef ELF_CORE_COPY_REGS
#define ELF_CORE_COPY_REGS(elf_regs, regs) \
elf_dump_regs((elf_greg_t *)&(elf_regs), regs);
#endif
#ifndef ELF_CORE_COPY_TASK_REGS
#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
#endif
#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) \
dump_task_fpu(tsk, elf_fpregs)
#define CORE_DUMP_USE_REGSET
#define ELF_EXEC_PAGESIZE PAGE_SIZE

32
arch/mips/kernel/binfmt_elfo32.c
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@ -72,16 +72,6 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
#include <asm/processor.h>
/* These MUST be defined before elf.h gets included */
extern void elf32_core_copy_regs(elf_gregset_t grp, struct pt_regs *regs);
#define ELF_CORE_COPY_REGS(_dest, _regs) elf32_core_copy_regs(_dest, _regs);
#define ELF_CORE_COPY_TASK_REGS(_tsk, _dest) \
({ \
int __res = 1; \
elf32_core_copy_regs(*(_dest), task_pt_regs(_tsk)); \
__res; \
})
#include <linux/module.h>
#include <linux/elfcore.h>
#include <linux/compat.h>
@ -139,28 +129,6 @@ jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
value->tv_usec = rem / NSEC_PER_USEC;
}
void elf32_core_copy_regs(elf_gregset_t grp, struct pt_regs *regs)
{
int i;
for (i = 0; i < MIPS32_EF_R0; i++)
grp[i] = 0;
grp[MIPS32_EF_R0] = 0;
for (i = 1; i <= 31; i++)
grp[MIPS32_EF_R0 + i] = (elf_greg_t) regs->regs[i];
grp[MIPS32_EF_R26] = 0;
grp[MIPS32_EF_R27] = 0;
grp[MIPS32_EF_LO] = (elf_greg_t) regs->lo;
grp[MIPS32_EF_HI] = (elf_greg_t) regs->hi;
grp[MIPS32_EF_CP0_EPC] = (elf_greg_t) regs->cp0_epc;
grp[MIPS32_EF_CP0_BADVADDR] = (elf_greg_t) regs->cp0_badvaddr;
grp[MIPS32_EF_CP0_STATUS] = (elf_greg_t) regs->cp0_status;
grp[MIPS32_EF_CP0_CAUSE] = (elf_greg_t) regs->cp0_cause;
#ifdef MIPS32_EF_UNUSED0
grp[MIPS32_EF_UNUSED0] = 0;
#endif
}
MODULE_DESCRIPTION("Binary format loader for compatibility with o32 Linux/MIPS binaries");
MODULE_AUTHOR("Ralf Baechle (ralf@linux-mips.org)");

55
arch/mips/kernel/process.c
View File

@ -152,61 +152,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
return 0;
}
/* Fill in the fpu structure for a core dump.. */
int dump_fpu(struct pt_regs *regs, elf_fpregset_t *r)
{
int i;
for (i = 0; i < NUM_FPU_REGS; i++)
memcpy(&r[i], &current->thread.fpu.fpr[i], sizeof(*r));
memcpy(&r[NUM_FPU_REGS], &current->thread.fpu.fcr31,
sizeof(current->thread.fpu.fcr31));
return 1;
}
void elf_dump_regs(elf_greg_t *gp, struct pt_regs *regs)
{
int i;
for (i = 0; i < EF_R0; i++)
gp[i] = 0;
gp[EF_R0] = 0;
for (i = 1; i <= 31; i++)
gp[EF_R0 + i] = regs->regs[i];
gp[EF_R26] = 0;
gp[EF_R27] = 0;
gp[EF_LO] = regs->lo;
gp[EF_HI] = regs->hi;
gp[EF_CP0_EPC] = regs->cp0_epc;
gp[EF_CP0_BADVADDR] = regs->cp0_badvaddr;
gp[EF_CP0_STATUS] = regs->cp0_status;
gp[EF_CP0_CAUSE] = regs->cp0_cause;
#ifdef EF_UNUSED0
gp[EF_UNUSED0] = 0;
#endif
}
int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
{
elf_dump_regs(*regs, task_pt_regs(tsk));
return 1;
}
int dump_task_fpu(struct task_struct *t, elf_fpregset_t *fpr)
{
int i;
for (i = 0; i < NUM_FPU_REGS; i++)
memcpy(&fpr[i], &t->thread.fpu.fpr[i], sizeof(*fpr));
memcpy(&fpr[NUM_FPU_REGS], &t->thread.fpu.fcr31,
sizeof(t->thread.fpu.fcr31));
return 1;
}
#ifdef CONFIG_CC_STACKPROTECTOR
#include <linux/stackprotector.h>
unsigned long __stack_chk_guard __read_mostly;