Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\test_overflow.c Create Date:2022-07-28 06:30:33
Last Modify:2022-05-18 10:03:51 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:do_test_s8

Proto:static int __attribute__((__section__(".init.text"))) __attribute__((__cold__))do_test_s8(const struct test_s8 *p)

Type:int

Parameter:

TypeParameterName
const struct test_s8 *p
264  err = 0
264  Do
264  _of = ({
264  __a = a
264  __b = b
264  __d = _r
264  __a == __b
264  __a == __d
264  __builtin_add_overflow(__a, __b, __d)
264  })
264  If _of != s_of Then
264  printk("\0014"KBUILD_MODNAME": expected %d + %d to%s overflow (type %s)\n", a, b, s_of ? "" : " not", "s8")
264  err = 1
264  If _r != sum Then
264  printk("\0014"KBUILD_MODNAME": expected %d + %d == %d, got %d (type %s)\n", a, b, sum, _r, "s8")
264  err = 1
264  When 0 cycle
264  Do
264  _of = ({
264  __a = b
264  __b = a
264  __d = _r
264  __a == __b
264  __a == __d
264  __builtin_add_overflow(__a, __b, __d)
264  })
264  If _of != s_of Then
264  printk("\0014"KBUILD_MODNAME": expected %d + %d to%s overflow (type %s)\n", b, a, s_of ? "" : " not", "s8")
264  err = 1
264  If _r != sum Then
264  printk("\0014"KBUILD_MODNAME": expected %d + %d == %d, got %d (type %s)\n", b, a, sum, _r, "s8")
264  err = 1
264  When 0 cycle
264  Do
264  _of = ({
264  __a = a
264  __b = b
264  __d = _r
264  __a == __b
264  __a == __d
264  __builtin_sub_overflow(__a, __b, __d)
264  })
264  If _of != d_of Then
264  printk("\0014"KBUILD_MODNAME": expected %d - %d to%s overflow (type %s)\n", a, b, d_of ? "" : " not", "s8")
264  err = 1
264  If _r != diff Then
264  printk("\0014"KBUILD_MODNAME": expected %d - %d == %d, got %d (type %s)\n", a, b, diff, _r, "s8")
264  err = 1
264  When 0 cycle
264  Do
264  _of = ({
264  __a = a
264  __b = b
264  __d = _r
264  __a == __b
264  __a == __d
264  __builtin_mul_overflow(__a, __b, __d)
264  })
264  If _of != p_of Then
264  printk("\0014"KBUILD_MODNAME": expected %d * %d to%s overflow (type %s)\n", a, b, p_of ? "" : " not", "s8")
264  err = 1
264  If _r != prod Then
264  printk("\0014"KBUILD_MODNAME": expected %d * %d == %d, got %d (type %s)\n", a, b, prod, _r, "s8")
264  err = 1
264  When 0 cycle
264  Do
264  _of = ({
264  __a = b
264  __b = a
264  __d = _r
264  __a == __b
264  __a == __d
264  __builtin_mul_overflow(__a, __b, __d)
264  })
264  If _of != p_of Then
264  printk("\0014"KBUILD_MODNAME": expected %d * %d to%s overflow (type %s)\n", b, a, p_of ? "" : " not", "s8")
264  err = 1
264  If _r != prod Then
264  printk("\0014"KBUILD_MODNAME": expected %d * %d == %d, got %d (type %s)\n", b, a, prod, _r, "s8")
264  err = 1
264  When 0 cycle
264  Return err
Caller
NameDescribe
test_s8_overflow