URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [newlib-1.10.0/] [newlib/] [libc/] [sys/] [h8300hms/] [sbrk.c] - Diff between revs 1010 and 1765

Rev 1010	Rev 1765
`#include <_ansi.h>`	`#include <_ansi.h>`
`#include <sys/types.h>`	`#include <sys/types.h>`
`#include <sys/stat.h>`	`#include <sys/stat.h>`

`register char *stack_ptr asm ("sp");`	`register char *stack_ptr asm ("sp");`

`caddr_t`	`caddr_t`
`_sbrk(incr)`	`_sbrk(incr)`
`int incr;`	`int incr;`
`{`	`{`
`extern char end; /* Defined by the linker */`	`extern char end; /* Defined by the linker */`
`static char *heap_end;`	`static char *heap_end;`
`char *prev_heap_end;`	`char *prev_heap_end;`

`if (heap_end == 0)`	`if (heap_end == 0)`
`{`	`{`
`heap_end = &end;`	`heap_end = &end;`
`}`	`}`
`prev_heap_end = heap_end;`	`prev_heap_end = heap_end;`
`if (heap_end + incr > stack_ptr)`	`if (heap_end + incr > stack_ptr)`
`{`	`{`
`_write (1, "Heap and stack collision\n", 25);`	`_write (1, "Heap and stack collision\n", 25);`
`abort ();`	`abort ();`
`}`	`}`
`heap_end += incr;`	`heap_end += incr;`
`return (caddr_t)prev_heap_end;`	`return (caddr_t)prev_heap_end;`
`}`	`}`