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| author | Jeff Johnston <jjohnstn@redhat.com> | 2010-12-02 19:35:47 +0000 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2010-12-02 19:35:47 +0000 |
| commit | 8ae0b98903893e68a52baa9a2e3df574f0d7a39e (patch) | |
| tree | e6810305a55e34b3b0598e4d04e236ace3b606c6 /libgloss/cr16/_getenv.c | |
| parent | 874a87f8cd93365c3bea0e6e5d14c265e9bb01f6 (diff) | |
| download | cygnal-8ae0b98903893e68a52baa9a2e3df574f0d7a39e.tar.gz cygnal-8ae0b98903893e68a52baa9a2e3df574f0d7a39e.tar.bz2 cygnal-8ae0b98903893e68a52baa9a2e3df574f0d7a39e.zip | |
2010-12-02 Jayant Sonar jayant.sonar@kpitcummins.com
Kaushik Phatak kaushik.phatak@kpitcummins.com
* configure.in: Add CR16 support.
* configure: Regenerated.
* cr16/aclocal.m4: New.
* cr16/close.c: New.
* cr16/configure: New.
* cr16/configure.in: New.
* cr16/crt1.S: New.
* cr16/crti.S: New.
* cr16/crtn.S: New.
* cr16/dvz_hndl.c: New.
* cr16/_exit.c: New.
* cr16/flg_hndl.c: New.
* cr16/fstat.c: New.
* cr16/_getenv.c: New.
* cr16/getpid.c: New.
* cr16/iad_hndl.c: New.
* cr16/intable.c: New.
* cr16/isatty.c: New.
* cr16/kill.c: New.
* cr16/lseek.c: New.
* cr16/Makefile.in: New.
* cr16/open.c: New.
* cr16/putnum.c: New.
* cr16/read.c: New.
* cr16/_rename.c: New.
* cr16/sbrk.c: New.
* cr16/sim.ld: New.
* cr16/stat.c: New.
* cr16/svc_hndl.c: New.
* cr16/time.c: New.
* cr16/und_hndl.c: New.
* cr16/unlink.c: New.
* cr16/write.c: New.
Diffstat (limited to 'libgloss/cr16/_getenv.c')
| -rw-r--r-- | libgloss/cr16/_getenv.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/libgloss/cr16/_getenv.c b/libgloss/cr16/_getenv.c new file mode 100644 index 000000000..c43555dfa --- /dev/null +++ b/libgloss/cr16/_getenv.c @@ -0,0 +1,36 @@ +/* _getenv.c -- Implementation of the low-level _getenv() routine + * + * Copyright (c) 2004 National Semiconductor Corporation + * + * The authors hereby grant permission to use, copy, modify, distribute, + * and license this software and its documentation for any purpose, provided + * that existing copyright notices are retained in all copies and that this + * notice is included verbatim in any distributions. No written agreement, + * license, or royalty fee is required for any of the authorized uses. + * Modifications to this software may be copyrighted by their authors + * and need not follow the licensing terms described here, provided that + * the new terms are clearly indicated on the first page of each file where + * they apply. + */ + +#include <sys/syscall.h> +#include <stdlib.h> + +register char *R2 __asm__("r2"); +register char *R3 __asm__("r3"); + +char * _getenv (const char *name) +{ + char *x; + char *y; + + x = R2; + + y = (char *) calloc (256, 1); + R3 = y; + + R2 = x; + + HOST_SERVICE (SVC_GETENV); +} + |