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Diffstat (limited to 'sysdeps/unix/sysv/linux/dl-librecon.h')
-rw-r--r--sysdeps/unix/sysv/linux/dl-librecon.h56
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 */