diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/dl-librecon.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/dl-librecon.h | 56 |
1 files changed, 34 insertions, 22 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-librecon.h b/sysdeps/unix/sysv/linux/dl-librecon.h index d98afcb8a8..afe1ec4b72 100644 --- a/sysdeps/unix/sysv/linux/dl-librecon.h +++ b/sysdeps/unix/sysv/linux/dl-librecon.h @@ -1,5 +1,5 @@ /* Optional code to distinguish library flavours. - Copyright (C) 2001 Free Software Foundation, Inc. + Copyright (C) 2001, 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jakub Jelinek <jakub@redhat.com>, 2001. @@ -21,29 +21,41 @@ #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 = __strtoul_internal (p, &q, 0, 0); + if (j >= 255 || p == q || (i < 2 && *q && *q != '.')) + { + osversion = 0; + break; + } + osversion |= j << (16 - 8 * i); + if (!*q) + break; + } + if (osversion) + GL(dl_osversion) = osversion; +} + /* Recognizing extra environment variables. */ -#define EXTRA_LD_ENVVARS \ +#define EXTRA_LD_ENVVARS EXTRA_LD_ENVVARS_LINUX +#define EXTRA_LD_ENVVARS_LINUX \ case 13: \ if (memcmp (envline, "ASSUME_KERNEL", 13) == 0) \ - { \ - unsigned long int i, j, osversion = 0; \ - char *p = &envline[14], *q; \ - \ - for (i = 0; i < 3; i++, p = q + 1) \ - { \ - j = __strtoul_internal (p, &q, 0, 0); \ - if (j >= 255 || p == q || (i < 2 && *q && *q != '.')) \ - { \ - osversion = 0; \ - break; \ - } \ - osversion |= j << (16 - 8 * i); \ - if (!*q) \ - break; \ - } \ - if (osversion) \ - GL(dl_osversion) = osversion; \ - break; \ - } + _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 */ |