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| author | Christopher Faylor <me@cgf.cx> | 2000-02-17 19:39:52 +0000 |
|---|---|---|
| committer | Christopher Faylor <me@cgf.cx> | 2000-02-17 19:39:52 +0000 |
| commit | 8a0efa53e44919bcf5ccb1d3353618a82afdf8bc (patch) | |
| tree | 68c3dbf3f2c6fd5d49777def9914d77b5cd4589d /newlib/libc/sys/sysvi386/sbrk.c | |
| parent | 1fd5e000ace55b323124c7e556a7a864b972a5c4 (diff) | |
| download | cygnal-8a0efa53e44919bcf5ccb1d3353618a82afdf8bc.tar.gz cygnal-8a0efa53e44919bcf5ccb1d3353618a82afdf8bc.tar.bz2 cygnal-8a0efa53e44919bcf5ccb1d3353618a82afdf8bc.zip | |
import newlib-2000-02-17 snapshot
Diffstat (limited to 'newlib/libc/sys/sysvi386/sbrk.c')
| -rw-r--r-- | newlib/libc/sys/sysvi386/sbrk.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/newlib/libc/sys/sysvi386/sbrk.c b/newlib/libc/sys/sysvi386/sbrk.c new file mode 100644 index 000000000..8ae3ed12b --- /dev/null +++ b/newlib/libc/sys/sysvi386/sbrk.c @@ -0,0 +1,21 @@ +extern end; + +static void *curbrk = (char*)&end; + +void * +sbrk(incr) +int incr; { + extern int errno; + extern int _brk(void *); + void *ptr = curbrk; + int t; + + if (incr == 0) + return curbrk; + t = _brk (curbrk + incr); + if (t == -1 && errno) + return (void *)-1; + curbrk = ((char *)curbrk) + incr; + return ptr; +} + |