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e2d19ad097705759f616989606ca97b8480aff8e
linux-nvgpu/userspace/units/interface/static_analysis/static_analysis.c
Sagar Kamble 0394aef90d gpu: nvgpu: cast bvec test 
Add BVEC tests for following functions:
nvgpu_safe_cast_u64_to_u32, nvgpu_safe_cast_u64_to_u16,
nvgpu_safe_cast_u64_to_u8, nvgpu_safe_cast_u64_to_s64,
nvgpu_safe_cast_u64_to_s32, nvgpu_safe_cast_s64_to_u64,
nvgpu_safe_cast_s64_to_u32, nvgpu_safe_cast_s64_to_s32,
nvgpu_safe_cast_u32_to_u16, nvgpu_safe_cast_u32_to_u8,
nvgpu_safe_cast_u32_to_s32, nvgpu_safe_cast_u32_to_s8,
nvgpu_safe_cast_s32_to_u64, nvgpu_safe_cast_s32_to_u32,
nvgpu_safe_cast_s8_to_u8, nvgpu_safe_cast_bool_to_u32

JIRA NVGPU-6412

Change-Id: Ic97e45051570a7133045de6cb4345c5f935cf9f6
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2555469
(cherry picked from commit be2ba5f1a7ead4c062eab74c7587c32797a651df)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2623637
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
2021-11-12 21:37:01 -08:00

611 lines
26 KiB
C
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/*
* Copyright (c) 2020-2021, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <unit/unit.h>
#include <unit/io.h>
#include <nvgpu/posix/io.h>
#include <nvgpu/gk20a.h>
#include <nvgpu/static_analysis.h>
#include "static_analysis.h"
/**
* unsigned addition tests
*
* parameters:
* type_name: type (u8, u32 etc.)
* type_max : Maximum value of the type.
* tmp_operand: random value in the set (1, Maximum value)
*
* Boundary values: (0, 1, max-1, max)
*
* Valid tests: Addition result within range for each boundary value and
* random value.
* Invalid tests: Addition result out of range if possible for each
* boundary and random value.
*/
#define GENERATE_ARITHMETIC_ADD_TESTS(type_name, type_max, tmp_operand) do {\
unit_assert(nvgpu_safe_add_##type_name(type_max, 0) == type_max, return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(type_max - 1, 1) == type_max, return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(type_max - tmp_operand, tmp_operand) == type_max, \
return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(1, type_max)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(tmp_operand, type_max - tmp_operand + 1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_max - 1, tmp_operand > 1 ? tmp_operand : 2)); \
unit_assert(err != 0, return UNIT_FAIL); \
} while (0)
/**
* wrapping unsigned addition tests
*
* parameters:
* type_name: type (u8, u32 etc.)
* type_max : Maximum value of the type.
* tmp_operand: random value in the set (1, Maximum value)
*
* Boundary values: (0, 1, max-1, max)
*
* Valid tests: Addition result within range for each boundary value and
* random value. Addition result wrapping for each boundary
* and random value.
*/
#define GENERATE_ARITHMETIC_WRAPPING_ADD_TESTS(type_name, type_max, tmp_operand) do {\
unit_assert(nvgpu_wrapping_add_##type_name(type_max, 0) == type_max, return UNIT_FAIL); \
unit_assert(nvgpu_wrapping_add_##type_name(type_max - 1, 1) == type_max, return UNIT_FAIL); \
unit_assert(nvgpu_wrapping_add_##type_name(type_max - tmp_operand, tmp_operand) == type_max, \
return UNIT_FAIL); \
unit_assert(nvgpu_wrapping_add_##type_name(1, type_max) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_wrapping_add_##type_name(tmp_operand, type_max - tmp_operand + 1) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_wrapping_add_##type_name(type_max - 1, 2) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_wrapping_add_##type_name(type_max, type_max) == (type_max - 1), return UNIT_FAIL); \
} while (0)
/**
* signed addition tests
*
* parameters:
* type_name: type (s32, s64 etc.)
* type_min: Minimum value of the type.
* type_max : Maximum value of the type.
* tmp_operand1: random positive value in the set (1, Maximum value / 2)
* tmp_operand2: random negative value in the set (-1, Minimum value / 2)
*
* Boundary values: (min, min+1, -1, 0, 1, max-1, max)
*
* Valid tests: Addition result within range for each boundary value and
* random value.
* Invalid tests: Addition result out of range if possible for each
* boundary and random value.
*/
#define GENERATE_ARITHMETIC_SIGNED_ADD_TESTS(type_name, type_min, type_max, tmp_operand1, tmp_operand2) do {\
unit_assert(nvgpu_safe_add_##type_name(type_min, type_max) == -1, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(0, type_max) == type_max, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(-1, -1) == -2, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(-1, 1) == 0, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(1, 1) == 2, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(type_max - tmp_operand1, tmp_operand1) == type_max, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(type_min - tmp_operand2, tmp_operand2) == type_min, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(tmp_operand1, tmp_operand2) == tmp_operand1 + tmp_operand2, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(tmp_operand1, type_min + 1) == tmp_operand1 + type_min + 1, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_add_##type_name(type_max - 1, tmp_operand2) == type_max - 1 + tmp_operand2, \
return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_max - tmp_operand1 + 1, tmp_operand1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_max, tmp_operand1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_max, type_max)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_min - tmp_operand2 - 1, tmp_operand2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_min, tmp_operand2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_min, type_min)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_min + 1, type_min + 1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_max - 1, type_max - 1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_max - 1, tmp_operand1 > 1 ? tmp_operand1 : 2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_add_##type_name(type_min + 1, tmp_operand2 < -1 ? tmp_operand2 : -2)); \
unit_assert(err != 0, return UNIT_FAIL); \
} while (0)
/**
* unsigned subtraction tests
*
* parameters:
* type_name: type (u8, u32 etc.)
* type_max : Maximum value of the type.
* tmp_operand: random value in the set (1, Maximum value)
*
* Boundary values: (0, 1, max-1, max)
*
* Valid tests: Subtraction result within range for each boundary value and
* random value.
* Invalid tests: Subtraction result out of range if possible for each
* boundary and random value.
*/
#define GENERATE_ARITHMETIC_SUBTRACT_TESTS(type_name, type_max, tmp_operand) do {\
unit_assert(nvgpu_safe_sub_##type_name(0, 0) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(1, 0) == 1, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_max, tmp_operand) == type_max - tmp_operand, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(tmp_operand, 0) == tmp_operand, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_max, type_max - 1) == 1, \
return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_max - 1, 1) == type_max - 2, \
return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(0, 1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(0, tmp_operand)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(0, type_max)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(tmp_operand, type_max)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(type_max - 1, type_max)); \
unit_assert(err != 0, return UNIT_FAIL); \
} while (0)
/**
* signed subtraction tests
*
* parameters:
* type_name: type (s32, s64 etc.)
* type_min: Minimum value of the type.
* type_max : Maximum value of the type.
* tmp_operand1: random positive value in the set (1, Maximum value / 2)
* tmp_operand2: random negative value in the set (-1, Minimum value / 2)
*
* Boundary values: (min, min+1, -1, 0, 1, max-1, max)
*
* Valid tests: Subtraction result within range for each boundary value and
* random value.
* Invalid tests: Subtraction result out of range if possible for each
* boundary and random value.
*/
#define GENERATE_ARITHMETIC_SIGNED_SUBTRACT_TESTS(type_name, type_min, type_max, tmp_operand1, tmp_operand2) do {\
unit_assert(nvgpu_safe_sub_##type_name(tmp_operand2, tmp_operand2) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(tmp_operand2, tmp_operand1) == tmp_operand2 - tmp_operand1, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(tmp_operand1, tmp_operand2) == tmp_operand1 - tmp_operand2, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(0, 0) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(0, type_max) == 0 - type_max, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_max, 0) == type_max, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(-1, -1) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(-1, 1) == -2, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(1, -1) == 2, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(1, 1) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_min + 1, type_min + 1) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_min, type_min) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_max - 1, type_max - 1) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_max, type_max) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_min + 1, tmp_operand2) == type_min + 1 - tmp_operand2, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_max - 1, tmp_operand1) == type_max - 1 - tmp_operand1, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(tmp_operand2, tmp_operand2 - type_min) == type_min, return UNIT_FAIL); \
unit_assert(nvgpu_safe_sub_##type_name(type_max, type_max - tmp_operand1) == tmp_operand1, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(type_min, tmp_operand1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(type_max, tmp_operand2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(type_max - 1, type_min + 1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(type_min + 1, type_max - 1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(type_max - 1, tmp_operand2 < -1 ? tmp_operand2 : -2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(type_min + 1, tmp_operand1 > 1 ? tmp_operand1 : 2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(0, type_min)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(type_min, type_max)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_sub_##type_name(type_max, type_min)); \
unit_assert(err != 0, return UNIT_FAIL); \
} while (0)
/**
* unsigned multiplication tests
*
* parameters:
* type_name: type (u8, u32 etc.)
* type_max : Maximum value of the type.
* tmp_operand: random value in the set (1, Maximum value / 2)
*
* Boundary values: (0, 1, max-1, max)
*
* Valid tests: Multiplication result within range for each boundary value and
* random value.
* Invalid tests: Multiplication result out of range if possible for each
* boundary and random value.
*/
#define GENERATE_ARITHMETIC_MULT_TESTS(type_name, type_max, tmp_operand) do {\
unit_assert(nvgpu_safe_mult_##type_name(0, type_max) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(type_max - 1, 1) == type_max - 1, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(tmp_operand, 2) == tmp_operand * 2, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_max - 1, 2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_max - 1, tmp_operand > 1 ? tmp_operand : 2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_max, type_max)); \
unit_assert(err != 0, return UNIT_FAIL); \
} while (0)
/**
* signed multiplication tests
*
* parameters:
* type_name: type (s32, s64 etc.)
* type_min: Minimum value of the type.
* type_max : Maximum value of the type.
* tmp_operand1: random positive value in the set (1, Maximum value / 2)
* tmp_operand2: random negative value in the set (-1, Minimum value / 2)
*
* Boundary values: (min, min+1, -1, 0, 1, max-1, max)
*
* Valid tests: Multiplication result within range for each boundary value and
* random value.
* Invalid tests: Multiplication result out of range if possible for each
* boundary and random value.
*/
#define GENERATE_ARITHMETIC_SIGNED_MULT_TESTS(type_name, type_min, type_max, tmp_operand1, tmp_operand2) do {\
unit_assert(nvgpu_safe_mult_##type_name(0, type_max) == 0, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(1, type_min) == type_min, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(-1, -1) == 1, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(-1, 1) == -1, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(1, 1) == 1, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(tmp_operand1, 2) == tmp_operand1 * 2, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(tmp_operand2, 2) == tmp_operand2 * 2, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(type_max, -1) == type_max * -1, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(type_max - 1, -1) == (type_max - 1) * -1, return UNIT_FAIL); \
unit_assert(nvgpu_safe_mult_##type_name(type_min + 1, -1) == (type_min + 1) * -1, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_max, 2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_max, -2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_min, 2)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_min, -1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_min, type_min)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_max, type_max)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_min, type_max)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_min + 1, type_min + 1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_max - 1, type_max - 1)); \
unit_assert(err != 0, return UNIT_FAIL); \
err = EXPECT_BUG((void)nvgpu_safe_mult_##type_name(type_min + 1, type_max - 1)); \
unit_assert(err != 0, return UNIT_FAIL); \
} while (0)
int test_arithmetic(struct unit_module *m, struct gk20a *g, void *args)
{
s64 tmp_s64, tmp_s64_neg;
s32 tmp_s32, tmp_s32_neg;
u64 tmp_u64;
u32 tmp_u32;
u8 tmp_u8;
int err;
srand(time(0));
/* random value in the set (1, U8_MAX - 1) */
tmp_u8 = rand() % U8_MAX ?: 1;
/* random value in the set ((u32)1, (u32)(U32_MAX - 1)) */
tmp_u32 = (u32)((rand() % U32_MAX) ?: 1);
/* random value in the set ((s32)1, (s32)(U32_MAX - 1) / 2) */
tmp_s32 = (s32)((rand() % U32_MAX) / 2 ?: 1);
/* random value in the set ((s32)-1, (s32)-((U32_MAX - 1) / 2)) */
tmp_s32_neg = (s32)(0 - (rand() % U32_MAX) / 2) ?: -1;
/* random value in the set ((u64)1, (u64)(U64_MAX - 1)) */
tmp_u64 = (u64)((rand() % U64_MAX) ?: 1);
/* random value in the set ((s64)1, (s64)(U64_MAX - 1) / 2) */
tmp_s64 = (s64)((rand() % U64_MAX) / 2 ?: 1);
/* random value in the set ((s64)-1, (s64)-((U64_MAX - 1) / 2)) */
tmp_s64_neg = (s64)(0 - (rand() % U64_MAX) / 2) ?: -1;
unit_info(m, "random operands\nu8: %u, u32: %u, s32: %d, s32_neg: %d\nu64: %llu, s64: %lld, s64_neg: %lld\n",
tmp_u8, tmp_u32, tmp_s32, tmp_s32_neg, tmp_u64, tmp_s64, tmp_s64_neg);
/* U8 sub */
GENERATE_ARITHMETIC_SUBTRACT_TESTS(u8, U8_MAX, tmp_u8);
/* U32 add */
GENERATE_ARITHMETIC_ADD_TESTS(u32, U32_MAX, tmp_u32);
/* wrapping U32 add */
GENERATE_ARITHMETIC_WRAPPING_ADD_TESTS(u32, U32_MAX, tmp_u32);
/* S32 add */
GENERATE_ARITHMETIC_SIGNED_ADD_TESTS(s32, INT_MIN, INT_MAX, tmp_s32, tmp_s32_neg);
/* U32 sub */
GENERATE_ARITHMETIC_SUBTRACT_TESTS(u32, U32_MAX, tmp_u32);
/* S32 sub */
GENERATE_ARITHMETIC_SIGNED_SUBTRACT_TESTS(s32, INT_MIN, INT_MAX, tmp_s32, tmp_s32_neg);
/* U32 Mult */
GENERATE_ARITHMETIC_MULT_TESTS(u32, U32_MAX, tmp_u32);
/* U64 add */
GENERATE_ARITHMETIC_ADD_TESTS(u64, U64_MAX, tmp_u64);
/* S64 add */
GENERATE_ARITHMETIC_SIGNED_ADD_TESTS(s64, LONG_MIN, LONG_MAX, tmp_s64, tmp_s64_neg);
/* U64 sub */
GENERATE_ARITHMETIC_SUBTRACT_TESTS(u64, U64_MAX, tmp_u64);
/* S64 sub */
GENERATE_ARITHMETIC_SIGNED_SUBTRACT_TESTS(s64, LONG_MIN, LONG_MAX, tmp_s64, tmp_s64_neg);
/* U64 Mult */
GENERATE_ARITHMETIC_MULT_TESTS(u64, U64_MAX, tmp_u64);
/* S64 Mult */
GENERATE_ARITHMETIC_SIGNED_MULT_TESTS(s64, LONG_MIN, LONG_MAX, tmp_s64, tmp_s64_neg);
return UNIT_SUCCESS;
}
/**
* unsigned to unsigned cast tests
*
* parameters:
* type1: type to cast from (u32, u64)
* type2: type to cast to (u8, u16, u32)
* type1_max: Maximum value of the type1.
* type2_max : Maximum value of the type2.
*
* Boundary values: (0, type2 max, type1 max)
*
* Valid tests: Cast result within range for each valid boundary value and
* random value.
* Invalid tests: Cast result out of range if possible for each invalid
* boundary and random value.
*/
#define GENERATE_UNSIGNED_CAST_TESTS(type1, type2, type1_max, type2_max) { \
type1 temp; \
type1 valid_##type2[] = {0, 1, (temp = rand() % type2_max) > 1 ? temp : 2, type2_max - 1, type2_max}; \
type1 invalid_##type2[] = {(type1)type2_max + 1, (type1)type2_max + 2,\
(type1)type2_max + ((temp = rand() % (type1_max - type2_max)) > 2 ? temp : 3),\
type1_max - 1, type1_max}; \
for (i = 0; i < ARRAY_SIZE(valid_##type2); i++) { \
unit_assert(nvgpu_safe_cast_##type1##_to_##type2(valid_##type2[i]) == (type2)valid_##type2[i], return UNIT_FAIL); \
} \
for (i = 0; i < ARRAY_SIZE(invalid_##type2); i++) { \
err = EXPECT_BUG((void)nvgpu_safe_cast_##type1##_to_##type2(invalid_##type2[i])); \
unit_assert(err != 0, return UNIT_FAIL); \
} \
}
/**
* unsigned to signed cast tests
*
* parameters:
* type1: type to cast from (u32, u64)
* type2: type to cast to (s8, s32, s64)
* type1_max: Maximum value of the type1.
* type2_min : Minimum value of the type2.
* type2_max : Maximum value of the type2.
*
* Boundary values: (type2 min, 0, type2 max, type1 max)
*
* Valid tests: Cast result within range for each valid boundary value and
* random value.
* Invalid tests: Cast result out of range if possible for each invalid
* boundary and random value.
*/
#define GENERATE_SIGNED_CAST_TESTS(type1, type2, type1_max, type2_min, type2_max) { \
type2 temp; \
type1 valid_##type2[] = {0, 1, (temp = rand() % type2_max) > 1 ? temp : 2, type2_max - 1, type2_max}; \
type1 invalid_##type2[] = {(type1)type2_min, (type1)type2_min + 1, \
(type1)type2_min + ((temp = rand() % type2_min) > 1 ? temp : 2), -1, \
(type1)type2_max + 1, (type1)type2_max + 2, \
(type1)type2_max + ((temp = rand() % (type1_max - type2_max)) > 2 ? temp : 3), \
type1_max - 1, type1_max}; \
for (i = 0; i < ARRAY_SIZE(valid_##type2); i++) { \
unit_assert(nvgpu_safe_cast_##type1##_to_##type2(valid_##type2[i]) == (type2)valid_##type2[i], return UNIT_FAIL); \
} \
for (i = 0; i < ARRAY_SIZE(invalid_##type2); i++) { \
err = EXPECT_BUG((void)nvgpu_safe_cast_##type1##_to_##type2(invalid_##type2[i])); \
unit_assert(err != 0, return UNIT_FAIL); \
} \
}
/**
* signed to unsigned cast tests
*
* parameters:
* type1: type to cast to (s8, s32, s64)
* type2: type to cast from (u8, u32, u64)
* type1_min : Minimum value of the type1.
* type1_max : Maximum value of the type1.
*
* Boundary values: (type1 min, 0, type1 max)
*
* Assumption: the range of non-negative values from type1 are subset of those
* from type2.
*
* Valid tests: Cast result within range for each valid boundary value and
* random value.
* Invalid tests: Cast result out of range if possible for each invalid
* boundary and random value.
*/
#define GENERATE_SIGNED_TO_UNSIGNED_CAST_TESTS(type1, type2, type1_min, type1_max) { \
type1 temp;\
type1 valid_##type2[] = {0, 1, (temp = rand() % type1_max) > 1 ? temp : 2, type1_max - 1, type1_max}; \
type1 invalid_##type2[] = {type1_min, type1_min + 1, type1_min + ((temp = rand() % type1_min) > 1 ? temp : 2), -1}; \
for (i = 0; i < ARRAY_SIZE(valid_##type2); i++) { \
unit_assert(nvgpu_safe_cast_##type1##_to_##type2(valid_##type2[i]) == (type2)valid_##type2[i], return UNIT_FAIL); \
} \
for (i = 0; i < ARRAY_SIZE(invalid_##type2); i++) { \
err = EXPECT_BUG((void)nvgpu_safe_cast_##type1##_to_##type2(invalid_##type2[i])); \
unit_assert(err != 0, return UNIT_FAIL); \
} \
}
int test_cast(struct unit_module *m, struct gk20a *g, void *args)
{
s64 random_s64;
/**
* s64 to u32 cast tests
*
* Boundary values: (LONG_MIN, 0, U32_MAX, LONG_MAX)
*
* Valid tests: Cast result within range for each valid boundary value and
* random value.
* Invalid tests: Cast result out of range if possible for each invalid
* boundary and random value.
*/
s64 valid_s64_u32[] = {0, 1, (random_s64 = rand() % U32_MAX) > 1 ? random_s64 : 2, U32_MAX - 1, U32_MAX};
s64 invalid_s64_u32[] = {LONG_MIN, LONG_MIN + 1,
LONG_MIN + ((random_s64 = rand() % LONG_MIN) > 1 ? random_s64 : 2), -1,
(s64)U32_MAX + 1, (s64)U32_MAX + 2,
(s64)U32_MAX + ((random_s64 = rand() % LONG_MAX) > 1 ? random_s64 : 3),
LONG_MAX - 1, LONG_MAX};
/**
* s64 to s32 cast tests
*
* Boundary values: (LONG_MIN, INT_MIN, 0, INT_MAX, LONG_MAX)
*
* Valid tests: Cast result within range for each valid boundary value and
* random value.
* Invalid tests: Cast result out of range if possible for each invalid
* boundary and random value.
*/
s64 valid_s64_s32[] = {INT_MIN, INT_MIN + 1,
INT_MIN + ((random_s64 = rand() % INT_MIN) > 1 ? random_s64 : 2), -1, 0,
1, (random_s64 = rand() % INT_MAX) > 1 ? random_s64 : 2, INT_MAX - 1, INT_MAX};
s64 invalid_s64_s32[] = {LONG_MIN, LONG_MIN + 1,
LONG_MIN + ((random_s64 = rand() % (INT_MIN - LONG_MIN)) > 1 ? random_s64 : 2),
(s64)INT_MIN - 2, (s64)INT_MIN - 1, (s64)INT_MAX + 1, (s64)INT_MAX + 2,
(s64)INT_MAX + ((random_s64 = rand() % (LONG_MAX - INT_MAX)) > 1 ? random_s64 : 3),
LONG_MAX - 1, LONG_MAX};
int err;
u32 i;
/* U64 to U32 */
GENERATE_UNSIGNED_CAST_TESTS(u64, u32, U64_MAX, U32_MAX);
/* U64 to U16 */
GENERATE_UNSIGNED_CAST_TESTS(u64, u16, U64_MAX, U16_MAX);
/* U64 to U8 */
GENERATE_UNSIGNED_CAST_TESTS(u64, u8, U64_MAX, U8_MAX);
/* U32 to U16 */
GENERATE_UNSIGNED_CAST_TESTS(u32, u16, U32_MAX, U16_MAX);
/* U32 to U8 */
GENERATE_UNSIGNED_CAST_TESTS(u32, u8, U32_MAX, U8_MAX);
/* U64 to S64 */
GENERATE_SIGNED_CAST_TESTS(u64, s64, U64_MAX, LONG_MIN, LONG_MAX);
/* U64 to S32 */
GENERATE_SIGNED_CAST_TESTS(u64, s32, U64_MAX, INT_MIN, INT_MAX);
/* U32 to S32 */
GENERATE_SIGNED_CAST_TESTS(u32, s32, U32_MAX, INT_MIN, INT_MAX);
/* U32 to S8 */
GENERATE_SIGNED_CAST_TESTS(u32, s8, U32_MAX, SCHAR_MIN, SCHAR_MAX);
/* S64 to U64 */
GENERATE_SIGNED_TO_UNSIGNED_CAST_TESTS(s64, u64, LONG_MIN, LONG_MAX);
/* S32 to U64 */
GENERATE_SIGNED_TO_UNSIGNED_CAST_TESTS(s32, u64, INT_MIN, INT_MAX);
/* S32 to U32 */
GENERATE_SIGNED_TO_UNSIGNED_CAST_TESTS(s32, u32, INT_MIN, INT_MAX);
/* S8 to U8 */
GENERATE_SIGNED_TO_UNSIGNED_CAST_TESTS(s8, u8, SCHAR_MIN, SCHAR_MAX);
/* S64 to U32 */
for (i = 0; i < ARRAY_SIZE(valid_s64_u32); i++) {
unit_assert(nvgpu_safe_cast_s64_to_u32(valid_s64_u32[i]) == (u32)valid_s64_u32[i], return UNIT_FAIL);
}
for (i = 0; i < ARRAY_SIZE(invalid_s64_u32); i++) {
err = EXPECT_BUG((void)nvgpu_safe_cast_s64_to_u32(invalid_s64_u32[i]));
unit_assert(err != 0, return UNIT_FAIL);
}
/* S64 to S32 */
for (i = 0; i < ARRAY_SIZE(valid_s64_s32); i++) {
unit_assert(nvgpu_safe_cast_s64_to_s32(valid_s64_s32[i]) == (s32)valid_s64_s32[i], return UNIT_FAIL);
}
for (i = 0; i < ARRAY_SIZE(invalid_s64_s32); i++) {
err = EXPECT_BUG((void)nvgpu_safe_cast_s64_to_s32(invalid_s64_s32[i]));
unit_assert(err != 0, return UNIT_FAIL);
}
/* bool to U32 */
unit_assert(nvgpu_safe_cast_bool_to_u32(false) == 0, return UNIT_FAIL);
unit_assert(nvgpu_safe_cast_bool_to_u32(true) == 1, return UNIT_FAIL);
return UNIT_SUCCESS;
}
int test_safety_checks(struct unit_module *m, struct gk20a *g, void *args)
{
nvgpu_safety_checks();
return UNIT_SUCCESS;
}
struct unit_module_test static_analysis_tests[] = {
UNIT_TEST(arithmetic, test_arithmetic, NULL, 0),
UNIT_TEST(cast, test_cast, NULL, 0),
UNIT_TEST(safety_checks, test_safety_checks, NULL, 0),
};
UNIT_MODULE(static_analysis, static_analysis_tests, UNIT_PRIO_NVGPU_TEST);
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