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600f00b747
The Linux kernel expects rusage to use a 32-bit time_t, even on archs with a 64-bit time_t (like RV32). To address this let's convert rusage to/from 32-bit and 64-bit to ensure the kernel always gets a 32-bit time_t. While we are converting these functions let's also convert them to be the y2038 safe versions. This means there is a *64 function that is called by a backwards compatible wrapper. Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/* getrusage -- get the rusage struct. Linux version.
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Copyright (C) 2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <sys/types.h>
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#include <sysdep.h>
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#include <tv32-compat.h>
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int
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__getrusage64 (enum __rusage_who who, struct __rusage64 *usage)
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{
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#if __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64
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return INLINE_SYSCALL_CALL (getrusage, who, usage);
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#else
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struct __rusage32 usage32;
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if (INLINE_SYSCALL_CALL (getrusage, who, &usage32) == -1)
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return -1;
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rusage32_to_rusage64 (&usage32, usage);
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return 0;
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#endif
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}
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#if __TIMESIZE != 64
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libc_hidden_def (__getrusage64)
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int
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__getrusage (enum __rusage_who who, struct rusage *usage)
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{
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int ret ;
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struct __rusage64 usage64;
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ret = __getrusage64 (who, &usage64);
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if (ret != 0)
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return ret;
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rusage64_to_rusage (&usage64, usage);
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return ret;
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}
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#endif
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weak_alias (__getrusage, getrusage)
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