Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\test_overflow.c Create Date:2022-07-28 06:30:38
Last Modify:2022-05-18 10:03:51 Copyright©Brick
home page Tree
Annotation kernel can get tool activityDownload SCCTChinese

Name:do_test_u16

Proto:static int __attribute__((__section__(".init.text"))) __attribute__((__cold__))do_test_u16(const struct test_u16 *p)

Type:int

Parameter:

TypeParameterName
const struct test_u16 *p
265  err = 0
265  Do
265  _of = ({
265  __a = a
265  __b = b
265  __d = _r
265  __a == __b
265  __a == __d
265  __builtin_add_overflow(__a, __b, __d)
265  })
265  If _of != s_of Then
265  printk("\0014"KBUILD_MODNAME": expected %d + %d to%s overflow (type %s)\n", a, b, s_of ? "" : " not", "u16")
265  err = 1
265  If _r != sum Then
265  printk("\0014"KBUILD_MODNAME": expected %d + %d == %d, got %d (type %s)\n", a, b, sum, _r, "u16")
265  err = 1
265  When 0 cycle
265  Do
265  _of = ({
265  __a = b
265  __b = a
265  __d = _r
265  __a == __b
265  __a == __d
265  __builtin_add_overflow(__a, __b, __d)
265  })
265  If _of != s_of Then
265  printk("\0014"KBUILD_MODNAME": expected %d + %d to%s overflow (type %s)\n", b, a, s_of ? "" : " not", "u16")
265  err = 1
265  If _r != sum Then
265  printk("\0014"KBUILD_MODNAME": expected %d + %d == %d, got %d (type %s)\n", b, a, sum, _r, "u16")
265  err = 1
265  When 0 cycle
265  Do
265  _of = ({
265  __a = a
265  __b = b
265  __d = _r
265  __a == __b
265  __a == __d
265  __builtin_sub_overflow(__a, __b, __d)
265  })
265  If _of != d_of Then
265  printk("\0014"KBUILD_MODNAME": expected %d - %d to%s overflow (type %s)\n", a, b, d_of ? "" : " not", "u16")
265  err = 1
265  If _r != diff Then
265  printk("\0014"KBUILD_MODNAME": expected %d - %d == %d, got %d (type %s)\n", a, b, diff, _r, "u16")
265  err = 1
265  When 0 cycle
265  Do
265  _of = ({
265  __a = a
265  __b = b
265  __d = _r
265  __a == __b
265  __a == __d
265  __builtin_mul_overflow(__a, __b, __d)
265  })
265  If _of != p_of Then
265  printk("\0014"KBUILD_MODNAME": expected %d * %d to%s overflow (type %s)\n", a, b, p_of ? "" : " not", "u16")
265  err = 1
265  If _r != prod Then
265  printk("\0014"KBUILD_MODNAME": expected %d * %d == %d, got %d (type %s)\n", a, b, prod, _r, "u16")
265  err = 1
265  When 0 cycle
265  Do
265  _of = ({
265  __a = b
265  __b = a
265  __d = _r
265  __a == __b
265  __a == __d
265  __builtin_mul_overflow(__a, __b, __d)
265  })
265  If _of != p_of Then
265  printk("\0014"KBUILD_MODNAME": expected %d * %d to%s overflow (type %s)\n", b, a, p_of ? "" : " not", "u16")
265  err = 1
265  If _r != prod Then
265  printk("\0014"KBUILD_MODNAME": expected %d * %d == %d, got %d (type %s)\n", b, a, prod, _r, "u16")
265  err = 1
265  When 0 cycle
265  Return err
Caller
NameDescribe
test_u16_overflow