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or1k: Fix multicore stack calculation

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Change the type of the stack pointers to enable pointer calculations at byte
granularity, which is needed for the calculation of _or1k_stack_core[c] and
_or1k_exception_stack_core[c] with _or1k_stack_size and
_or1k_exception_stack_size. (util.c:53-54)
This commit is contained in:
Stefan Roesch 2016-03-10 17:50:52 +01:00 committed by Corinna Vinschen
parent 8c5911b37c
commit 81ad4e656a
2 changed files with 14 additions and 14 deletions
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12
libgloss/or1k/or1k-internals.h
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@ -6,17 +6,17 @@
#include "include/or1k-support.h"
extern uint32_t* _or1k_stack_top;
extern uint8_t* _or1k_stack_top;
extern size_t _or1k_stack_size;
extern uint32_t* _or1k_stack_bottom;
extern uint8_t* _or1k_stack_bottom;
extern uint32_t* _or1k_exception_stack_top;
extern uint8_t* _or1k_exception_stack_top;
extern size_t _or1k_exception_stack_size;
extern uint32_t* _or1k_exception_stack_bottom;
extern uint8_t* _or1k_exception_stack_bottom;
#ifdef __OR1K_MULTICORE__
extern uint32_t* *_or1k_stack_core;
extern uint32_t* *_or1k_exception_stack_core;
extern uint8_t* *_or1k_stack_core;
extern uint8_t* *_or1k_exception_stack_core;
#endif

16
libgloss/or1k/util.c
View File

@ -24,27 +24,27 @@
#ifdef __OR1K_MULTICORE__
// Define pointers to arrays
uint32_t* *_or1k_stack_core;
uint32_t* *_or1k_exception_stack_core;
uint8_t* *_or1k_stack_core;
uint8_t* *_or1k_exception_stack_core;
uint32_t* *_or1k_exception_level;
#else
// Define scalar
uint32_t _or1k_exception_level;
#endif
uint32_t* _or1k_stack_top;
uint32_t* _or1k_stack_bottom;
uint8_t* _or1k_stack_top;
uint8_t* _or1k_stack_bottom;
uint32_t* _or1k_exception_stack_top;
uint32_t* _or1k_exception_stack_bottom;
uint8_t* _or1k_exception_stack_top;
uint8_t* _or1k_exception_stack_bottom;
void _or1k_init() {
#ifdef __OR1K_MULTICORE__
uint32_t c;
// Initialize stacks
_or1k_stack_core = _sbrk_r(0, sizeof(uint32_t*) * or1k_numcores());
_or1k_exception_stack_core = _sbrk_r(0, sizeof(uint32_t*) * or1k_numcores());
_or1k_stack_core = _sbrk_r(0, sizeof(uint8_t*) * or1k_numcores());
_or1k_exception_stack_core = _sbrk_r(0, sizeof(uint8_t*) * or1k_numcores());
_or1k_stack_core[0] = _or1k_stack_top;
_or1k_exception_stack_core[0] = _or1k_exception_stack_top;