glibc/sysdeps/unix/sysv/linux/dl-librecon.h
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

60 lines
1.8 KiB
C

/* Optional code to distinguish library flavours.
Copyright (C) 2001-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _DL_LIBRECON_H
#define _DL_LIBRECON_H 1
static inline void __attribute__ ((unused, always_inline))
_dl_osversion_init (char *assume_kernel)
{
unsigned long int i, j, osversion = 0;
char *p = assume_kernel, *q;
for (i = 0; i < 3; i++, p = q + 1)
{
j = _dl_strtoul (p, &q);
if (j >= 255 || p == q || (i < 2 && *q && *q != '.'))
{
osversion = 0;
break;
}
osversion |= j << (16 - 8 * i);
if (!*q)
break;
}
if (osversion)
GLRO(dl_osversion) = osversion;
}
/* Recognizing extra environment variables. */
#define EXTRA_LD_ENVVARS_13 \
if (memcmp (envline, "ASSUME_KERNEL", 13) == 0) \
{ \
_dl_osversion_init (&envline[14]); \
break; \
}
#define DL_OSVERSION_INIT \
do { \
char *assume_kernel = getenv ("LD_ASSUME_KERNEL"); \
if (assume_kernel) \
_dl_osversion_init (assume_kernel); \
} while (0)
#endif /* dl-librecon.h */