sll a2, a2, 0
sll a3, a3, 0
- dsll t0, v0, 3 # offset into table
- ld t2, (sys32_call_table - (__NR_O32_Linux * 8))(t0)
-
sd a3, PT_R26(sp) # save a3 for syscall restarting
/*
bnez t0, trace_a_syscall
syscall_common:
+ dsll t0, v0, 3 # offset into table
+ ld t2, (sys32_call_table - (__NR_O32_Linux * 8))(t0)
+
jalr t2 # Do The Real Thing (TM)
li t0, -EMAXERRNO - 1 # error?
sd a6, PT_R10(sp)
sd a7, PT_R11(sp) # For indirect syscalls
- move s0, t2 # Save syscall pointer
move a0, sp
/*
* absolute syscall number is in v0 unless we called syscall(__NR_###)
bltz v0, 1f # seccomp failed? Skip syscall
- move t2, s0
RESTORE_STATIC
+ ld v0, PT_R2(sp) # Restore syscall (maybe modified)
ld a0, PT_R4(sp) # Restore argument registers
ld a1, PT_R5(sp)
ld a2, PT_R6(sp)
ld a5, PT_R9(sp)
ld a6, PT_R10(sp)
ld a7, PT_R11(sp) # For indirect syscalls
+
+ dsubu t0, v0, __NR_O32_Linux # check (new) syscall number
+ sltiu t0, t0, __NR_O32_Linux_syscalls + 1
+ beqz t0, not_o32_scall
+
j syscall_common
1: j syscall_exit