Files
linux-nvgpu/drivers/gpu/nvgpu/common/utils/string.c
Adeel Raza 252ddc4f05 gpu: nvgpu: add coverity whitelisting support
Add macros for whitelisting coverity violations. These macros use pragma
directives. The pragma directives and whitelisting macros are only
enabled when a coverity scan is being run.

The whitelisting macros have been added to a new header called
static_analysis.h. The contents of safe_ops.h (CERT C safe ops) have
been moved into static_analysis.h because this will be the new header
for static analysis related macros/defines/etc.

JIRA NVGPU-3820

Change-Id: I9c63f20f670880b420415535738034619314b7c3
Signed-off-by: Adeel Raza <araza@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2180600
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2020-12-15 14:05:52 -06:00

81 lines
2.0 KiB
C

/*
* Copyright (c) 2018-2019, 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 <nvgpu/string.h>
#include <nvgpu/log.h>
#include <nvgpu/static_analysis.h>
void
nvgpu_memcpy(u8 *destb, const u8 *srcb, size_t n)
{
(void) memcpy(destb, srcb, n);
}
int
nvgpu_memcmp(const u8 *b1, const u8 *b2, size_t n)
{
return memcmp(b1, b2, n);
}
int nvgpu_strnadd_u32(char *dst, const u32 value, size_t size, u32 radix)
{
int n;
u32 v;
char *p;
u32 digit;
if (radix < 2U || radix > 16U) {
return 0;
}
/* how many digits do we need ? */
n = 0;
v = value;
do {
n = nvgpu_safe_add_s32(n, 1);
v = v / radix;
} while (v > 0U);
/* bail out if there is not room for '\0' */
if (n >= nvgpu_safe_cast_u64_to_s32(size)) {
return 0;
}
/* number of digits (not including '\0') */
p = dst + n;
/* terminate with '\0' */
*p = '\0';
p--;
v = value;
do {
digit = v % radix;
*p = "0123456789abdcef"[digit];
v = v / radix;
p--;
}
while (v > 0U);
return n;
}