Differential D26389 Diff 76891 sys/cddl/dev/fbt/riscv/fbt_isa.c

Changeset View

Standalone View

sys/cddl/dev/fbt/riscv/fbt_isa.c

Show First 20 Lines • Show All 53 Lines • ▼ Show 20 Lines	fbt_invop(uintptr_t addr, struct trapframe *frame, uintptr_t rval)

cpu = &solaris_cpu[curcpu];		cpu = &solaris_cpu[curcpu];
fbt = fbt_probetab[FBT_ADDR2NDX(addr)];		fbt = fbt_probetab[FBT_ADDR2NDX(addr)];

for (; fbt != NULL; fbt = fbt->fbtp_hashnext) {		for (; fbt != NULL; fbt = fbt->fbtp_hashnext) {
if ((uintptr_t)fbt->fbtp_patchpoint == addr) {		if ((uintptr_t)fbt->fbtp_patchpoint == addr) {
cpu->cpu_dtrace_caller = addr;		cpu->cpu_dtrace_caller = addr;

		if (fbt->fbtp_roffset == 0) {
dtrace_probe(fbt->fbtp_id, frame->tf_a[0],		dtrace_probe(fbt->fbtp_id, frame->tf_a[0],
frame->tf_a[1], frame->tf_a[2],		frame->tf_a[1], frame->tf_a[2],
frame->tf_a[3], frame->tf_a[4]);		frame->tf_a[3], frame->tf_a[4]);
		} else {
		dtrace_probe(fbt->fbtp_id, fbt->fbtp_roffset,
		frame->tf_a[0], frame->tf_a[1], 0, 0);
		}

cpu->cpu_dtrace_caller = 0;		cpu->cpu_dtrace_caller = 0;
return (fbt->fbtp_savedval);		return (fbt->fbtp_savedval);
}		}
}		}

return (0);		return (0);
}		}
▲ Show 20 Lines • Show All 155 Lines • ▼ Show 20 Lines	again:
}		}
retfbt = fbt;		retfbt = fbt;

fbt->fbtp_patchpoint = instr;		fbt->fbtp_patchpoint = instr;
fbt->fbtp_ctl = lf;		fbt->fbtp_ctl = lf;
fbt->fbtp_loadcnt = lf->loadcnt;		fbt->fbtp_loadcnt = lf->loadcnt;
fbt->fbtp_symindx = symindx;		fbt->fbtp_symindx = symindx;
fbt->fbtp_rval = rval;		fbt->fbtp_rval = rval;
		fbt->fbtp_roffset = (uintptr_t)instr - (uintptr_t)symval->value;
fbt->fbtp_savedval = *instr;		fbt->fbtp_savedval = *instr;
fbt->fbtp_patchval = patchval;		fbt->fbtp_patchval = patchval;
fbt->fbtp_hashnext = fbt_probetab[FBT_ADDR2NDX(instr)];		fbt->fbtp_hashnext = fbt_probetab[FBT_ADDR2NDX(instr)];
fbt_probetab[FBT_ADDR2NDX(instr)] = fbt;		fbt_probetab[FBT_ADDR2NDX(instr)] = fbt;

lf->fbt_nentries++;		lf->fbt_nentries++;

instr++;		instr++;
goto again;		goto again;
}		}