|
|
|
|
// RUN: python3 -m riscemu -v %s -o libc | filecheck %s
|
|
|
|
|
|
|
|
|
|
.data
|
|
|
|
|
|
|
|
|
|
data:
|
|
|
|
|
.byte 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88
|
|
|
|
|
.byte 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF, 0x00
|
|
|
|
|
|
|
|
|
|
dest:
|
|
|
|
|
.byte 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB
|
|
|
|
|
.byte 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB, 0xAB
|
|
|
|
|
|
|
|
|
|
small_str:
|
|
|
|
|
.string "test"
|
|
|
|
|
|
|
|
|
|
.text
|
|
|
|
|
|
|
|
|
|
.globl main
|
|
|
|
|
main:
|
|
|
|
|
// test that strlen(data) == 15
|
|
|
|
|
addi sp, sp, -4
|
|
|
|
|
sw ra, 0(sp)
|
|
|
|
|
la a0, data
|
|
|
|
|
// call strlen(data)
|
|
|
|
|
jal strlen
|
|
|
|
|
li t0, 15
|
|
|
|
|
bne a0, t0, _fail
|
|
|
|
|
|
|
|
|
|
// now memcpy strlen(data)+1 bytes from data to dest
|
|
|
|
|
la a0, dest
|
|
|
|
|
la a1, data
|
|
|
|
|
li a2, 16
|
|
|
|
|
// call strncpy(dest, data, 16)
|
|
|
|
|
jal strncpy
|
|
|
|
|
la a1, dest
|
|
|
|
|
// fail because strncpy should return pointer to dest
|
|
|
|
|
bne a0, a1, _fail
|
|
|
|
|
// check that dest and data are the same
|
|
|
|
|
jal check_data_dest_is_same
|
|
|
|
|
la a0, dest
|
|
|
|
|
li a1, 0x11
|
|
|
|
|
li a2, 16
|
|
|
|
|
// test that memset(dest) workds
|
|
|
|
|
// call memset(dest, 0x11, 16)
|
|
|
|
|
jal memset
|
|
|
|
|
// check that all of dest is 0x11111111
|
|
|
|
|
li t1, 0x11111111
|
|
|
|
|
la a0, dest
|
|
|
|
|
lw t0, 0(a0)
|
|
|
|
|
bne t0, t1, _fail
|
|
|
|
|
lw t0, 1(a0)
|
|
|
|
|
bne t0, t1, _fail
|
|
|
|
|
lw t0, 2(a0)
|
|
|
|
|
bne t0, t1, _fail
|
|
|
|
|
lw t0, 3(a0)
|
|
|
|
|
bne t0, t1, _fail
|
|
|
|
|
// test memchr
|
|
|
|
|
// test memchr
|
|
|
|
|
la a0, data
|
|
|
|
|
li a1, 0x55
|
|
|
|
|
li a2, 16
|
|
|
|
|
// memchr(data, 0x55, 16)
|
|
|
|
|
jal memchr
|
|
|
|
|
la t0, data
|
|
|
|
|
addi t0, t0, 4
|
|
|
|
|
// fail if a0 != data+4
|
|
|
|
|
bne a0, t0, _fail
|
|
|
|
|
la a0, data
|
|
|
|
|
li a1, 0x12
|
|
|
|
|
li a2, 16
|
|
|
|
|
// memchr(data, 0x12, 16)
|
|
|
|
|
jal memchr
|
|
|
|
|
// check that result is NULL
|
|
|
|
|
bne a0, zero, _fail
|
|
|
|
|
// test strcpy
|
|
|
|
|
la a0, dest
|
|
|
|
|
la a1, small_str
|
|
|
|
|
// call strcpy(dest, small_str)
|
|
|
|
|
jal strcpy
|
|
|
|
|
la t0, dest
|
|
|
|
|
lw t1, 0(a0)
|
|
|
|
|
// ascii for "tset", as risc-v is little endian
|
|
|
|
|
li t2, 0x74736574
|
|
|
|
|
bne t1, t2, _fail
|
|
|
|
|
|
|
|
|
|
// return to exit() wrapper
|
|
|
|
|
lw ra, 0(sp)
|
|
|
|
|
addi sp, sp, 4
|
|
|
|
|
li a0, 0
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
_fail:
|
|
|
|
|
ebreak
|
|
|
|
|
// fail the test run
|
|
|
|
|
li a0, -1
|
|
|
|
|
jal exit
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
check_data_dest_is_same:
|
|
|
|
|
la a0, data
|
|
|
|
|
la a1, dest
|
|
|
|
|
li a2, 4
|
|
|
|
|
1:
|
|
|
|
|
lw t0, 0(a0)
|
|
|
|
|
lw t1, 0(a1)
|
|
|
|
|
bne t0, t1, _fail
|
|
|
|
|
addi a0, a0, 4
|
|
|
|
|
addi a1, a1, 4
|
|
|
|
|
addi a2, a2, -1
|
|
|
|
|
blt zero, a2, 1b
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//CHECK: [CPU] Program exited with code 0
|
