URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [libgloss/] [or32/] [sbrk.c] - Diff between revs 197 and 198

Rev 197	Rev 198
Line 29...	Line 29...
`with Doxygen. */`	`with Doxygen. */`
`/* -------------------------------------------------------------------------- */`	`/* -------------------------------------------------------------------------- */`

`#include <errno.h>`	`#include <errno.h>`

`/! Reserved stack space inbytes. /`
`#define STACK_BUFFER 65536`

`/! Define NULL if not yet defined. /`	`#undef errno`
`#ifndef NULL`	`extern int errno;`
`#define NULL ((void *) 0)`
`#endif`	`#define STACK_BUFFER 65536 /!< Reserved stack space in bytes. /`


`/* -------------------------------------------------------------------------- */`	`/* -------------------------------------------------------------------------- */`
`/*!Extend the heap`	`/*!Extend the heap`

Line 71...	Line 69...
`extern int end; /* start of free memory (as symbol) */`	`extern int end; /* start of free memory (as symbol) */`

`/* Value set by crt0.S */`	`/* Value set by crt0.S */`
`extern void stack; / end of free memory */`	`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 heap, with its initialization. */`
`static void heap_ptr = (void )&end; /* Previous end */`	`static void heap_ptr = (void )&end; /* Previous end */`

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