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https://github.com/gnuton/asuswrt-merlin.ng.git
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70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/***********************************************************************
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*
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* Copyright (c) 2020 Broadcom Ltd
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* All Rights Reserved
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*
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<:label-BRCM:2020:DUAL/GPL:standard
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Unless you and Broadcom execute a separate written software license
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agreement governing use of this software, this software is licensed
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to you under the terms of the GNU General Public License version 2
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(the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php,
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with the following added to such license:
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As a special exception, the copyright holders of this software give
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you permission to link this software with independent modules, and
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to copy and distribute the resulting executable under terms of your
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choice, provided that you also meet, for each linked independent
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module, the terms and conditions of the license of that module.
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An independent module is a module which is not derived from this
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software. The special exception does not apply to any modifications
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of the software.
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Not withstanding the above, under no circumstances may you combine
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this software in any way with any other Broadcom software provided
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under a license other than the GPL, without Broadcom's express prior
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written consent.
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:>
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*
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************************************************************************/
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#include <stdio.h>
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#include <time.h>
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#include <dlfcn.h>
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static int timestamp_initialized = 0;
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static int (*_bcm_clock_gettime_fn) (clockid_t, struct timespec *);
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/* Work around to avoid glibc symbols being hijacked by libshared.so, which is
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* a library in wifi userspace code. The correct way would be modify wifi code
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* to remove those redefinition of glibc functions. Until that happens, we use
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* dlsym to force symbol resole to glibc.
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*/
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int bcm_libc_clock_gettime(clockid_t clkid, struct timespec *ts)
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{
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if (timestamp_initialized == 0)
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{
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void *handle, *p;
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handle = dlopen ("libc.so.6", RTLD_LAZY);
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if (handle != NULL)
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{
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p = dlsym(handle, "clock_gettime");
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if (p != NULL)
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{
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_bcm_clock_gettime_fn = p;
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}
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}
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timestamp_initialized = 1;
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}
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if (_bcm_clock_gettime_fn != NULL)
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{
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return (*_bcm_clock_gettime_fn)(clkid, ts);
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}
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else
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{
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return clock_gettime(clkid, ts);
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}
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}
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