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Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [libgloss/] [or32/] [sbrk.c] - Diff between revs 180 and 197

Rev 180	Rev 197
Line 65...	Line 65...
`code in errno. */`	`code in errno. */`
`/* -------------------------------------------------------------------------- */`	`/* -------------------------------------------------------------------------- */`
`void *`	`void *`
`_sbrk (int nbytes)`	`_sbrk (int nbytes)`
`{`	`{`
`/* Symbols defined by linker map */`	`/* Symbol defined by linker map */`
`extern int end; /* start of free memory */`	`extern int end; /* start of free memory (as symbol) */`
`extern int stack; /* end of free memory */`
	`/* Value set by crt0.S */`
	`extern void stack; / end of free memory */`

`/* The statically held previous end of the stack, with its initialization. */`	`/* The statically held previous end of the stack, with its initialization. */`
`static void heap_ptr = (void )&end; /* Previous end */`	`static void heap_ptr = (void )&end; /* Previous end */`

`if (((void *) &stack - (heap_ptr + nbytes)) > STACK_BUFFER )`	`if ((stack - (heap_ptr + nbytes)) > STACK_BUFFER )`
`{`	`{`
`void * base = heap_ptr;`	`void * base = heap_ptr;`
`heap_ptr += nbytes;`	`heap_ptr += nbytes;`

`return base;`	`return base;`