diff options
author | Waldemar Brodkorb <wbx@openadk.org> | 2015-10-08 20:28:39 +0200 |
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committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2015-10-09 05:34:32 +0200 |
commit | 4d8e5484afb4978f672a8568ddd12e628fb02724 (patch) | |
tree | 58be2b52d5afb90974cee8303c6966fb0298f7a0 /libc/sysdeps/linux/or1k/__init_brk.c | |
parent | e78a0f58f23347c822c182d1c01f6eb9b9866d60 (diff) |
add new architecture support for or1k
Information about Openrisc:
http://opencores.org/or1k/Main_Page
Integrated from:
https://github.com/openrisc/uClibc-or1k
Diffstat (limited to 'libc/sysdeps/linux/or1k/__init_brk.c')
-rw-r--r-- | libc/sysdeps/linux/or1k/__init_brk.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/or1k/__init_brk.c b/libc/sysdeps/linux/or1k/__init_brk.c new file mode 100644 index 000000000..4c6763fdd --- /dev/null +++ b/libc/sysdeps/linux/or1k/__init_brk.c @@ -0,0 +1,28 @@ +/* From libc-5.3.12 */ + +#include <errno.h> +#include <unistd.h> +#include <sys/syscall.h> + +void * ___brk_addr = 0; + +int __init_brk (void); +void *_brk(void *ptr); + +#define __NR__brk __NR_brk +_syscall1(void *, _brk, void *, ptr); + +int +__init_brk (void) +{ + if (___brk_addr == 0) + { + ___brk_addr = _brk(0); + if (___brk_addr == 0) + { + __set_errno(ENOMEM); + return -1; + } + } + return 0; +} |