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| author | Al Viro <viro@zeniv.linux.org.uk> | 2020-06-06 23:55:02 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-06-26 07:01:53 +0200 |
| commit | e2115cf3cc57fc4b3f6b0ea4f746e5ab6dc9c2c0 (patch) | |
| tree | 1155628061bed76c99234415de703335fbe1f1e7 | |
| parent | [ia64] sanitize elf_access_gpreg() (diff) | |
| download | linux-e2115cf3cc57fc4b3f6b0ea4f746e5ab6dc9c2c0.tar.xz linux-e2115cf3cc57fc4b3f6b0ea4f746e5ab6dc9c2c0.zip | |
[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: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/ia64/kernel/ptrace.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index b9d068903b98..37b5140d0dfe 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -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); |