Commit e2115cf3 authored by Al Viro's avatar Al Viro
Browse files

[ia64] teach elf_access_reg() to handle the missing range (r16..r31) 



Now it's easy to make elf_access_gpreg() handle the rest of global
registers (r16..r31).  That gets rid of the hole in the registers
elf_access_reg() can handle, which will allow to simplify its callers
later in the series.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 4c35bf3a

arch/ia64/kernel/ptrace.c

+4 −2
Original line number Diff line number Diff line
@@ -1273,12 +1273,14 @@ struct regset_getset { 
	int ret;

};



static const ptrdiff_t pt_offsets[16] =

static const ptrdiff_t pt_offsets[32] =

{

#define R(n) offsetof(struct pt_regs, r##n)

	[0] = -1, R(1), R(2), R(3),

	[4] = -1, [5] = -1, [6] = -1, [7] = -1,

	R(8), R(9), R(10), R(11), R(12), R(13), R(14), R(15),

	R(16), R(17), R(18), R(19), R(20), R(21), R(22), R(23),

	R(24), R(25), R(26), R(27), R(28), R(29), R(30), R(31),

#undef R

};
@@ -1479,7 +1481,7 @@ static int 
access_elf_reg(struct task_struct *target, struct unw_frame_info *info,

		unsigned long addr, unsigned long *data, int write_access)

{

	if (addr >= ELF_GR_OFFSET(1) && addr <= ELF_GR_OFFSET(15))

	if (addr >= ELF_GR_OFFSET(1) && addr <= ELF_GR_OFFSET(31))

		return access_elf_gpreg(target, info, addr, data, write_access);

	else if (addr >= ELF_BR_OFFSET(0) && addr <= ELF_BR_OFFSET(7))

		return access_elf_breg(target, info, addr, data, write_access);

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