android/android_kernel_samsung_sm8650
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nios2: switch to ->regset_get()

Browse Source 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2020-06-16 14:28:44 -04:00
parent 8320514c91
commit 6bda768887
1 changed files with 15 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
arch/nios2/kernel/ptrace.c
View File

@ -21,45 +21,24 @@
static int genregs_get(struct task_struct *target,
const struct user_regset *regset,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf)
struct membuf to)
{
const struct pt_regs *regs = task_pt_regs(target);
const struct switch_stack *sw = (struct switch_stack *)regs - 1;
int ret = 0;
#define REG_O_ZERO_RANGE(START, END) \
if (!ret) \
ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, \
START * 4, (END * 4) + 4);
#define REG_O_ONE(PTR, LOC) \
if (!ret) \
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, PTR, \
LOC * 4, (LOC * 4) + 4);
#define REG_O_RANGE(PTR, START, END) \
if (!ret) \
ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, PTR, \
START * 4, (END * 4) + 4);
REG_O_ZERO_RANGE(PTR_R0, PTR_R0);
REG_O_RANGE(&regs->r1, PTR_R1, PTR_R7);
REG_O_RANGE(&regs->r8, PTR_R8, PTR_R15);
REG_O_RANGE(sw, PTR_R16, PTR_R23);
REG_O_ZERO_RANGE(PTR_R24, PTR_R25); /* et and bt */
REG_O_ONE(&regs->gp, PTR_GP);
REG_O_ONE(&regs->sp, PTR_SP);
REG_O_ONE(&regs->fp, PTR_FP);
REG_O_ONE(&regs->ea, PTR_EA);
REG_O_ZERO_RANGE(PTR_BA, PTR_BA);
REG_O_ONE(&regs->ra, PTR_RA);
REG_O_ONE(&regs->ea, PTR_PC); /* use ea for PC */
if (!ret)
ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
PTR_STATUS * 4, -1);
return ret;
membuf_zero(&to, 4); // R0
membuf_write(&to, &regs->r1, 7 * 4); // R1..R7
membuf_write(&to, &regs->r8, 8 * 4); // R8..R15
membuf_write(&to, sw, 8 * 4); // R16..R23
membuf_zero(&to, 2 * 4); /* et and bt */
membuf_store(&to, regs->gp);
membuf_store(&to, regs->sp);
membuf_store(&to, regs->fp);
membuf_store(&to, regs->ea);
membuf_zero(&to, 4); // PTR_BA
membuf_store(&to, regs->ra);
membuf_store(&to, regs->ea); /* use ea for PC */
return membuf_zero(&to, (NUM_PTRACE_REG - PTR_PC) * 4);
}
/*
@ -121,7 +100,7 @@ static const struct user_regset nios2_regsets[] = {
.n = NUM_PTRACE_REG,
.size = sizeof(unsigned long),
.align = sizeof(unsigned long),
.get = genregs_get,
.regset_get = genregs_get,
.set = genregs_set,
}
};