diff options
Diffstat (limited to 'nuttx/arch/arm/src/common/up_internal.h')
| -rw-r--r-- | nuttx/arch/arm/src/common/up_internal.h | 41 |
1 files changed, 32 insertions, 9 deletions
diff --git a/nuttx/arch/arm/src/common/up_internal.h b/nuttx/arch/arm/src/common/up_internal.h index d5c350e1e..2fd44bb93 100644 --- a/nuttx/arch/arm/src/common/up_internal.h +++ b/nuttx/arch/arm/src/common/up_internal.h @@ -118,6 +118,26 @@ extern uint32 g_heapbase; #if CONFIG_ARCH_INTERRUPTSTACK > 3 extern uint32 g_userstack; #endif + +/* These 'addresses' of these values are setup by the linker script. They are + * not actual uint32 storage locations! They are only used meaningfully in the + * following way: + * + * - The linker script defines, for example, the symbol_sdata. + * - The declareion extern uint32 _sdata; makes C happy. C will believe + * that the value _sdata is the address of a uint32 variable _data (it is + * not!). + * - We can recoved the linker value then by simply taking the address of + * of _data. like: uint32 *pdata = &_sdata; + */ + +extern uint32 _stext; /* Start of .text */ +extern uint32 _etext; /* End_1 of .text + .rodata */ +extern const uint32 _eronly; /* End+1 of read only section (.text + .rodata) */ +extern uint32 _sdata; /* Start of .data */ +extern uint32 _edata; /* End+1 of .data */ +extern uint32 _sbss; /* Start of .bss */ +extern uint32 _ebss; /* End+1 of .bss */ #endif /**************************************************************************** @@ -134,25 +154,28 @@ extern uint32 g_userstack; extern void up_boot(void); extern void up_copystate(uint32 *dest, uint32 *src); -extern void up_dataabort(uint32 *regs); extern void up_decodeirq(uint32 *regs); -#ifdef CONFIG_ARCH_CORTEXM3 -extern uint32 *up_doirq(int irq, uint32 *regs); -#else -extern void up_doirq(int irq, uint32 *regs); -#endif extern void up_fullcontextrestore(uint32 *regs) __attribute__ ((noreturn)); extern void up_irqinitialize(void); -extern void up_prefetchabort(uint32 *regs); extern int up_saveusercontext(uint32 *regs); extern void up_sigdeliver(void); -extern void up_syscall(uint32 *regs); extern int up_timerisr(int irq, uint32 *regs); -extern void up_undefinedinsn(uint32 *regs); extern void up_lowputc(char ch); extern void up_puts(const char *str); extern void up_lowputs(const char *str); +#ifdef CONFIG_ARCH_CORTEXM3 +extern uint32 *up_doirq(int irq, uint32 *regs); +extern int up_svcall(int irq, FAR void *context); +extern int up_hardfault(int irq, FAR void *context); +#else +extern void up_doirq(int irq, uint32 *regs); +extern void up_dataabort(uint32 *regs); +extern void up_prefetchabort(uint32 *regs); +extern void up_syscall(uint32 *regs); +extern void up_undefinedinsn(uint32 *regs); +#endif + /* Defined in up_vectors.S */ extern void up_vectorundefinsn(void); |