mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
arm64: switch to ->regset_get()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
parent
a0faf966a4
commit
759de58f28
@ -474,11 +474,10 @@ static int ptrace_hbp_set_addr(unsigned int note_type,
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static int hw_break_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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unsigned int note_type = regset->core_note_type;
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int ret, idx = 0, offset, limit;
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int ret, idx = 0;
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u32 info, ctrl;
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u64 addr;
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@ -487,49 +486,21 @@ static int hw_break_get(struct task_struct *target,
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if (ret)
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return ret;
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ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &info, 0,
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sizeof(info));
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if (ret)
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return ret;
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/* Pad */
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offset = offsetof(struct user_hwdebug_state, pad);
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ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, offset,
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offset + PTRACE_HBP_PAD_SZ);
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if (ret)
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return ret;
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membuf_write(&to, &info, sizeof(info));
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membuf_zero(&to, sizeof(u32));
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/* (address, ctrl) registers */
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offset = offsetof(struct user_hwdebug_state, dbg_regs);
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limit = regset->n * regset->size;
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while (count && offset < limit) {
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while (to.left) {
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ret = ptrace_hbp_get_addr(note_type, target, idx, &addr);
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if (ret)
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return ret;
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ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &addr,
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offset, offset + PTRACE_HBP_ADDR_SZ);
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if (ret)
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return ret;
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offset += PTRACE_HBP_ADDR_SZ;
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ret = ptrace_hbp_get_ctrl(note_type, target, idx, &ctrl);
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if (ret)
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return ret;
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ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &ctrl,
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offset, offset + PTRACE_HBP_CTRL_SZ);
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if (ret)
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return ret;
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offset += PTRACE_HBP_CTRL_SZ;
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ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
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offset,
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offset + PTRACE_HBP_PAD_SZ);
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if (ret)
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return ret;
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offset += PTRACE_HBP_PAD_SZ;
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membuf_store(&to, addr);
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membuf_store(&to, ctrl);
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membuf_zero(&to, sizeof(u32));
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idx++;
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}
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return 0;
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}
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@ -589,11 +560,10 @@ static int hw_break_set(struct task_struct *target,
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static int gpr_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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struct user_pt_regs *uregs = &task_pt_regs(target)->user_regs;
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return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs, 0, -1);
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return membuf_write(&to, uregs, sizeof(*uregs));
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}
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static int gpr_set(struct task_struct *target, const struct user_regset *regset,
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@ -626,8 +596,7 @@ static int fpr_active(struct task_struct *target, const struct user_regset *regs
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*/
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static int __fpr_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf, unsigned int start_pos)
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struct membuf to)
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{
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struct user_fpsimd_state *uregs;
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@ -635,13 +604,11 @@ static int __fpr_get(struct task_struct *target,
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uregs = &target->thread.uw.fpsimd_state;
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return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs,
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start_pos, start_pos + sizeof(*uregs));
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return membuf_write(&to, uregs, sizeof(*uregs));
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}
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static int fpr_get(struct task_struct *target, const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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if (!system_supports_fpsimd())
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return -EINVAL;
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@ -649,7 +616,7 @@ static int fpr_get(struct task_struct *target, const struct user_regset *regset,
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if (target == current)
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fpsimd_preserve_current_state();
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return __fpr_get(target, regset, pos, count, kbuf, ubuf, 0);
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return __fpr_get(target, regset, to);
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}
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static int __fpr_set(struct task_struct *target,
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@ -699,15 +666,12 @@ static int fpr_set(struct task_struct *target, const struct user_regset *regset,
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}
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static int tls_get(struct task_struct *target, const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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unsigned long *tls = &target->thread.uw.tp_value;
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if (target == current)
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tls_preserve_current_state();
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return user_regset_copyout(&pos, &count, &kbuf, &ubuf, tls, 0, -1);
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return membuf_store(&to, target->thread.uw.tp_value);
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}
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static int tls_set(struct task_struct *target, const struct user_regset *regset,
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@ -727,13 +691,9 @@ static int tls_set(struct task_struct *target, const struct user_regset *regset,
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static int system_call_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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int syscallno = task_pt_regs(target)->syscallno;
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return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
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&syscallno, 0, -1);
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return membuf_store(&to, task_pt_regs(target)->syscallno);
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}
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static int system_call_set(struct task_struct *target,
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@ -794,10 +754,8 @@ static unsigned int sve_get_size(struct task_struct *target,
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static int sve_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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int ret;
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struct user_sve_header header;
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unsigned int vq;
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unsigned long start, end;
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@ -809,10 +767,7 @@ static int sve_get(struct task_struct *target,
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sve_init_header_from_task(&header, target);
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vq = sve_vq_from_vl(header.vl);
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ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &header,
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0, sizeof(header));
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if (ret)
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return ret;
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membuf_write(&to, &header, sizeof(header));
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if (target == current)
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fpsimd_preserve_current_state();
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@ -821,26 +776,18 @@ static int sve_get(struct task_struct *target,
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BUILD_BUG_ON(SVE_PT_FPSIMD_OFFSET != sizeof(header));
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if ((header.flags & SVE_PT_REGS_MASK) == SVE_PT_REGS_FPSIMD)
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return __fpr_get(target, regset, pos, count, kbuf, ubuf,
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SVE_PT_FPSIMD_OFFSET);
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return __fpr_get(target, regset, to);
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/* Otherwise: full SVE case */
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BUILD_BUG_ON(SVE_PT_SVE_OFFSET != sizeof(header));
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start = SVE_PT_SVE_OFFSET;
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end = SVE_PT_SVE_FFR_OFFSET(vq) + SVE_PT_SVE_FFR_SIZE(vq);
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ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
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target->thread.sve_state,
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start, end);
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if (ret)
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return ret;
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membuf_write(&to, target->thread.sve_state, end - start);
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start = end;
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end = SVE_PT_SVE_FPSR_OFFSET(vq);
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ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
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start, end);
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if (ret)
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return ret;
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membuf_zero(&to, end - start);
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/*
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* Copy fpsr, and fpcr which must follow contiguously in
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@ -848,16 +795,11 @@ static int sve_get(struct task_struct *target,
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*/
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start = end;
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end = SVE_PT_SVE_FPCR_OFFSET(vq) + SVE_PT_SVE_FPCR_SIZE;
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ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
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&target->thread.uw.fpsimd_state.fpsr,
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start, end);
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if (ret)
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return ret;
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membuf_write(&to, &target->thread.uw.fpsimd_state.fpsr, end - start);
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start = end;
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end = sve_size_from_header(&header);
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return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
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start, end);
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return membuf_zero(&to, end - start);
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}
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static int sve_set(struct task_struct *target,
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@ -961,8 +903,7 @@ out:
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#ifdef CONFIG_ARM64_PTR_AUTH
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static int pac_mask_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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/*
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* The PAC bits can differ across data and instruction pointers
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@ -978,7 +919,7 @@ static int pac_mask_get(struct task_struct *target,
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if (!system_supports_address_auth())
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return -EINVAL;
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return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &uregs, 0, -1);
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return membuf_write(&to, &uregs, sizeof(uregs));
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}
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#ifdef CONFIG_CHECKPOINT_RESTORE
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@ -1017,8 +958,7 @@ static void pac_address_keys_from_user(struct ptrauth_keys_user *keys,
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static int pac_address_keys_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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struct ptrauth_keys_user *keys = &target->thread.keys_user;
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struct user_pac_address_keys user_keys;
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@ -1028,8 +968,7 @@ static int pac_address_keys_get(struct task_struct *target,
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pac_address_keys_to_user(&user_keys, keys);
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return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
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&user_keys, 0, -1);
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return membuf_write(&to, &user_keys, sizeof(user_keys));
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}
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static int pac_address_keys_set(struct task_struct *target,
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@ -1068,8 +1007,7 @@ static void pac_generic_keys_from_user(struct ptrauth_keys_user *keys,
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static int pac_generic_keys_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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struct ptrauth_keys_user *keys = &target->thread.keys_user;
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struct user_pac_generic_keys user_keys;
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@ -1079,8 +1017,7 @@ static int pac_generic_keys_get(struct task_struct *target,
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pac_generic_keys_to_user(&user_keys, keys);
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return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
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&user_keys, 0, -1);
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return membuf_write(&to, &user_keys, sizeof(user_keys));
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}
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static int pac_generic_keys_set(struct task_struct *target,
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@ -1134,7 +1071,7 @@ static const struct user_regset aarch64_regsets[] = {
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.n = sizeof(struct user_pt_regs) / sizeof(u64),
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.size = sizeof(u64),
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.align = sizeof(u64),
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.get = gpr_get,
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.regset_get = gpr_get,
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.set = gpr_set
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},
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[REGSET_FPR] = {
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@ -1147,7 +1084,7 @@ static const struct user_regset aarch64_regsets[] = {
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.size = sizeof(u32),
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.align = sizeof(u32),
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.active = fpr_active,
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.get = fpr_get,
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.regset_get = fpr_get,
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.set = fpr_set
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},
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[REGSET_TLS] = {
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@ -1155,7 +1092,7 @@ static const struct user_regset aarch64_regsets[] = {
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.n = 1,
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.size = sizeof(void *),
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.align = sizeof(void *),
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.get = tls_get,
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.regset_get = tls_get,
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.set = tls_set,
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},
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#ifdef CONFIG_HAVE_HW_BREAKPOINT
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@ -1164,7 +1101,7 @@ static const struct user_regset aarch64_regsets[] = {
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.n = sizeof(struct user_hwdebug_state) / sizeof(u32),
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.size = sizeof(u32),
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.align = sizeof(u32),
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.get = hw_break_get,
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.regset_get = hw_break_get,
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.set = hw_break_set,
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},
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[REGSET_HW_WATCH] = {
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@ -1172,7 +1109,7 @@ static const struct user_regset aarch64_regsets[] = {
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.n = sizeof(struct user_hwdebug_state) / sizeof(u32),
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.size = sizeof(u32),
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.align = sizeof(u32),
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.get = hw_break_get,
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.regset_get = hw_break_get,
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.set = hw_break_set,
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},
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#endif
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@ -1181,7 +1118,7 @@ static const struct user_regset aarch64_regsets[] = {
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.n = 1,
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.size = sizeof(int),
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.align = sizeof(int),
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.get = system_call_get,
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.regset_get = system_call_get,
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.set = system_call_set,
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},
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#ifdef CONFIG_ARM64_SVE
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@ -1191,7 +1128,7 @@ static const struct user_regset aarch64_regsets[] = {
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SVE_VQ_BYTES),
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.size = SVE_VQ_BYTES,
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.align = SVE_VQ_BYTES,
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.get = sve_get,
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.regset_get = sve_get,
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.set = sve_set,
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.get_size = sve_get_size,
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},
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@ -1202,7 +1139,7 @@ static const struct user_regset aarch64_regsets[] = {
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.n = sizeof(struct user_pac_mask) / sizeof(u64),
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.size = sizeof(u64),
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.align = sizeof(u64),
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.get = pac_mask_get,
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.regset_get = pac_mask_get,
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/* this cannot be set dynamically */
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},
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#ifdef CONFIG_CHECKPOINT_RESTORE
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@ -1211,7 +1148,7 @@ static const struct user_regset aarch64_regsets[] = {
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.n = sizeof(struct user_pac_address_keys) / sizeof(__uint128_t),
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.size = sizeof(__uint128_t),
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.align = sizeof(__uint128_t),
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.get = pac_address_keys_get,
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.regset_get = pac_address_keys_get,
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.set = pac_address_keys_set,
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},
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[REGSET_PACG_KEYS] = {
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@ -1219,7 +1156,7 @@ static const struct user_regset aarch64_regsets[] = {
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.n = sizeof(struct user_pac_generic_keys) / sizeof(__uint128_t),
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.size = sizeof(__uint128_t),
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.align = sizeof(__uint128_t),
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.get = pac_generic_keys_get,
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.regset_get = pac_generic_keys_get,
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.set = pac_generic_keys_set,
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},
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#endif
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@ -1255,39 +1192,13 @@ static inline compat_ulong_t compat_get_user_reg(struct task_struct *task, int i
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static int compat_gpr_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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struct membuf to)
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{
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int ret = 0;
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unsigned int i, start, num_regs;
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int i = 0;
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/* Calculate the number of AArch32 registers contained in count */
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num_regs = count / regset->size;
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/* Convert pos into an register number */
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start = pos / regset->size;
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if (start + num_regs > regset->n)
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return -EIO;
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for (i = 0; i < num_regs; ++i) {
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compat_ulong_t reg = compat_get_user_reg(target, start + i);
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if (kbuf) {
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memcpy(kbuf, ®, sizeof(reg));
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kbuf += sizeof(reg);
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} else {
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ret = copy_to_user(ubuf, ®, sizeof(reg));
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if (ret) {
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ret = -EFAULT;
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break;
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}
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ubuf += sizeof(reg);
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}
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}
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return ret;
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while (to.left)
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membuf_store(&to, compat_get_user_reg(target, i++));
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return 0;
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}
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static int compat_gpr_set(struct task_struct *target,
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@ -1354,12 +1265,10 @@ static int compat_gpr_set(struct task_struct *target,
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static int compat_vfp_get(struct task_struct *target,
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const struct user_regset *regset,
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unsigned int pos, unsigned int count,
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void *kbuf, void __user *ubuf)
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||||
struct membuf to)
|
||||
{
|
||||
struct user_fpsimd_state *uregs;
|
||||
compat_ulong_t fpscr;
|
||||
int ret, vregs_end_pos;
|
||||
|
||||
if (!system_supports_fpsimd())
|
||||
return -EINVAL;
|
||||
@ -1373,19 +1282,10 @@ static int compat_vfp_get(struct task_struct *target,
|
||||
* The VFP registers are packed into the fpsimd_state, so they all sit
|
||||
* nicely together for us. We just need to create the fpscr separately.
|
||||
*/
|
||||
vregs_end_pos = VFP_STATE_SIZE - sizeof(compat_ulong_t);
|
||||
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs,
|
||||
0, vregs_end_pos);
|
||||
|
||||
if (count && !ret) {
|
||||
fpscr = (uregs->fpsr & VFP_FPSCR_STAT_MASK) |
|
||||
(uregs->fpcr & VFP_FPSCR_CTRL_MASK);
|
||||
|
||||
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &fpscr,
|
||||
vregs_end_pos, VFP_STATE_SIZE);
|
||||
}
|
||||
|
||||
return ret;
|
||||
membuf_write(&to, uregs, VFP_STATE_SIZE - sizeof(compat_ulong_t));
|
||||
fpscr = (uregs->fpsr & VFP_FPSCR_STAT_MASK) |
|
||||
(uregs->fpcr & VFP_FPSCR_CTRL_MASK);
|
||||
return membuf_store(&to, fpscr);
|
||||
}
|
||||
|
||||
static int compat_vfp_set(struct task_struct *target,
|
||||
@ -1420,11 +1320,10 @@ static int compat_vfp_set(struct task_struct *target,
|
||||
}
|
||||
|
||||
static int compat_tls_get(struct task_struct *target,
|
||||
const struct user_regset *regset, unsigned int pos,
|
||||
unsigned int count, void *kbuf, void __user *ubuf)
|
||||
const struct user_regset *regset,
|
||||
struct membuf to)
|
||||
{
|
||||
compat_ulong_t tls = (compat_ulong_t)target->thread.uw.tp_value;
|
||||
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
|
||||
return membuf_store(&to, (compat_ulong_t)target->thread.uw.tp_value);
|
||||
}
|
||||
|
||||
static int compat_tls_set(struct task_struct *target,
|
||||
@ -1449,7 +1348,7 @@ static const struct user_regset aarch32_regsets[] = {
|
||||
.n = COMPAT_ELF_NGREG,
|
||||
.size = sizeof(compat_elf_greg_t),
|
||||
.align = sizeof(compat_elf_greg_t),
|
||||
.get = compat_gpr_get,
|
||||
.regset_get = compat_gpr_get,
|
||||
.set = compat_gpr_set
|
||||
},
|
||||
[REGSET_COMPAT_VFP] = {
|
||||
@ -1458,7 +1357,7 @@ static const struct user_regset aarch32_regsets[] = {
|
||||
.size = sizeof(compat_ulong_t),
|
||||
.align = sizeof(compat_ulong_t),
|
||||
.active = fpr_active,
|
||||
.get = compat_vfp_get,
|
||||
.regset_get = compat_vfp_get,
|
||||
.set = compat_vfp_set
|
||||
},
|
||||
};
|
||||
@ -1474,7 +1373,7 @@ static const struct user_regset aarch32_ptrace_regsets[] = {
|
||||
.n = COMPAT_ELF_NGREG,
|
||||
.size = sizeof(compat_elf_greg_t),
|
||||
.align = sizeof(compat_elf_greg_t),
|
||||
.get = compat_gpr_get,
|
||||
.regset_get = compat_gpr_get,
|
||||
.set = compat_gpr_set
|
||||
},
|
||||
[REGSET_FPR] = {
|
||||
@ -1482,7 +1381,7 @@ static const struct user_regset aarch32_ptrace_regsets[] = {
|
||||
.n = VFP_STATE_SIZE / sizeof(compat_ulong_t),
|
||||
.size = sizeof(compat_ulong_t),
|
||||
.align = sizeof(compat_ulong_t),
|
||||
.get = compat_vfp_get,
|
||||
.regset_get = compat_vfp_get,
|
||||
.set = compat_vfp_set
|
||||
},
|
||||
[REGSET_TLS] = {
|
||||
@ -1490,7 +1389,7 @@ static const struct user_regset aarch32_ptrace_regsets[] = {
|
||||
.n = 1,
|
||||
.size = sizeof(compat_ulong_t),
|
||||
.align = sizeof(compat_ulong_t),
|
||||
.get = compat_tls_get,
|
||||
.regset_get = compat_tls_get,
|
||||
.set = compat_tls_set,
|
||||
},
|
||||
#ifdef CONFIG_HAVE_HW_BREAKPOINT
|
||||
@ -1499,7 +1398,7 @@ static const struct user_regset aarch32_ptrace_regsets[] = {
|
||||
.n = sizeof(struct user_hwdebug_state) / sizeof(u32),
|
||||
.size = sizeof(u32),
|
||||
.align = sizeof(u32),
|
||||
.get = hw_break_get,
|
||||
.regset_get = hw_break_get,
|
||||
.set = hw_break_set,
|
||||
},
|
||||
[REGSET_HW_WATCH] = {
|
||||
@ -1507,7 +1406,7 @@ static const struct user_regset aarch32_ptrace_regsets[] = {
|
||||
.n = sizeof(struct user_hwdebug_state) / sizeof(u32),
|
||||
.size = sizeof(u32),
|
||||
.align = sizeof(u32),
|
||||
.get = hw_break_get,
|
||||
.regset_get = hw_break_get,
|
||||
.set = hw_break_set,
|
||||
},
|
||||
#endif
|
||||
@ -1516,7 +1415,7 @@ static const struct user_regset aarch32_ptrace_regsets[] = {
|
||||
.n = 1,
|
||||
.size = sizeof(int),
|
||||
.align = sizeof(int),
|
||||
.get = system_call_get,
|
||||
.regset_get = system_call_get,
|
||||
.set = system_call_set,
|
||||
},
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user