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Commit b053c98f authored by Ralf Baechle's avatar Ralf Baechle
Browse files

Fix register layout in o32 core dumps on 64-bit systems. 



Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent c83cfc9c

arch/mips/kernel/binfmt_elfo32.c

+18 −13
Original line number Diff line number Diff line
@@ -98,7 +98,7 @@ struct elf_prpsinfo32 
#define init_elf_binfmt init_elf32_binfmt



#define jiffies_to_timeval jiffies_to_compat_timeval

static __inline__ void

static inline void

jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)

{

	/*
@@ -113,21 +113,26 @@ jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value) 
#undef ELF_CORE_COPY_REGS

#define ELF_CORE_COPY_REGS(_dest,_regs) elf32_core_copy_regs(_dest,_regs);



void elf32_core_copy_regs(elf_gregset_t _dest, struct pt_regs *_regs)

void elf32_core_copy_regs(elf_gregset_t grp, struct pt_regs *regs)

{

	int i;



	memset(_dest, 0, sizeof(elf_gregset_t));



	/* XXXKW the 6 is from EF_REG0 in gdb/gdb/mips-linux-tdep.c, include/asm-mips/reg.h */

	for (i=6; i<38; i++)

		_dest[i] = (elf_greg_t) _regs->regs[i-6];

	_dest[i++] = (elf_greg_t) _regs->lo;

	_dest[i++] = (elf_greg_t) _regs->hi;

	_dest[i++] = (elf_greg_t) _regs->cp0_epc;

	_dest[i++] = (elf_greg_t) _regs->cp0_badvaddr;

	_dest[i++] = (elf_greg_t) _regs->cp0_status;

	_dest[i++] = (elf_greg_t) _regs->cp0_cause;

	for (i = 0; i < EF_R0; i++)

		grp[i] = 0;

	grp[EF_R0] = 0;

	for (i = 1; i <= 31; i++)

		grp[EF_R0 + i] = (elf_greg_t) regs->regs[i];

	grp[EF_R26] = 0;

	grp[EF_R27] = 0;

	grp[EF_LO] = (elf_greg_t) regs->lo;

	grp[EF_HI] = (elf_greg_t) regs->hi;

	grp[EF_CP0_EPC] = (elf_greg_t) regs->cp0_epc;

	grp[EF_CP0_BADVADDR] = (elf_greg_t) regs->cp0_badvaddr;

	grp[EF_CP0_STATUS] = (elf_greg_t) regs->cp0_status;

	grp[EF_CP0_CAUSE] = (elf_greg_t) regs->cp0_cause;

#ifdef EF_UNUSED0

	grp[EF_UNUSED0] = 0;

#endif

}



MODULE_DESCRIPTION("Binary format loader for compatibility with o32 Linux/MIPS binaries");