diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2020-02-22 17:01:44 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-07-27 20:31:07 +0200 |
| commit | 47e12855a91d2a9ca18d8fe10382e5a8d87b1417 (patch) | |
| tree | 0b129bd2d6e0e620358d5ce5b5d3c3857f3bde6f /arch/powerpc/kernel/ptrace/ptrace-vsx.c | |
| parent | x86: switch to ->regset_get() (diff) | |
| download | linux-47e12855a91d2a9ca18d8fe10382e5a8d87b1417.tar.xz linux-47e12855a91d2a9ca18d8fe10382e5a8d87b1417.zip | |
powerpc: switch to ->regset_get()
Note: compat variant of REGSET_TM_CGPR is almost certainly wrong;
it claims to be 48*64bit, but just as compat REGSET_GPR it stores
44*32bit of (truncated) registers + 4 32bit zeros... followed by
48 more 32bit zeroes. Might be too late to change - it's a userland
ABI, after all ;-/
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/powerpc/kernel/ptrace/ptrace-vsx.c')
| -rw-r--r-- | arch/powerpc/kernel/ptrace/ptrace-vsx.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/ptrace/ptrace-vsx.c b/arch/powerpc/kernel/ptrace/ptrace-vsx.c index d53466d49cc0..1da4303128ef 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-vsx.c +++ b/arch/powerpc/kernel/ptrace/ptrace-vsx.c @@ -19,7 +19,7 @@ * }; */ int fpr_get(struct task_struct *target, const struct user_regset *regset, - unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) + struct membuf to) { u64 buf[33]; int i; @@ -30,7 +30,7 @@ int fpr_get(struct task_struct *target, const struct user_regset *regset, for (i = 0; i < 32 ; i++) buf[i] = target->thread.TS_FPR(i); buf[32] = target->thread.fp_state.fpscr; - return user_regset_copyout(&pos, &count, &kbuf, &ubuf, buf, 0, -1); + return membuf_write(&to, buf, 33 * sizeof(u64)); } /* @@ -95,10 +95,10 @@ int vsr_active(struct task_struct *target, const struct user_regset *regset) * }; */ int vsr_get(struct task_struct *target, const struct user_regset *regset, - unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) + struct membuf to) { u64 buf[32]; - int ret, i; + int i; flush_tmregs_to_thread(target); flush_fp_to_thread(target); @@ -108,10 +108,7 @@ int vsr_get(struct task_struct *target, const struct user_regset *regset, for (i = 0; i < 32 ; i++) buf[i] = target->thread.fp_state.fpr[i][TS_VSRLOWOFFSET]; - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - buf, 0, 32 * sizeof(double)); - - return ret; + return membuf_write(&to, buf, 32 * sizeof(double)); } /* |