Han seguido esta guía aquí (http://www.wolinlabs.com/blog/stm32f4.semihosting.html) para obtener semihosting en el STM32F103 de trabajo. Básicamente mi objetivo es conseguir printf trabaja a través de JTAG (ST-Link/v2).
El cambio de la guía fue que _sbrk estaba buscando 'final' en lugar de '__final__'. Aquí está mi enlazador de archivo.
ENTRY(Reset_Handler)
MEMORY {
/*Adust LENGTH to RAMsize of target MCU:*/
/*STM32F103RBT --> 20K*/
RAM (RWX) : ORIGIN = 0x20000000 , LENGTH = 20K
/*STM32F103RET --> 64K*/
/*RAM (RWX) : ORIGIN = 0x20000000 , LENGTH = 64K*/
EXTSRAM (RWX) : ORIGIN = 0x68000000 , LENGTH = 0
/*Adust LENGTH to (FLASHsize - FeePROMsize) of target MCU:*/
/*STM32F103RBT --> 126K*/
FLASH (RX) : ORIGIN = 0x08000000 , LENGTH = 126K
/*STM32F103RET --> 508K*/
/*FLASH (RX) : ORIGIN = 0x08000000 , LENGTH = 508K*/
/*Adust ORIGIN to (0x08000000 + (FLASHsize-FeePROMsize)) of target MCU*/
/*and adust LENGTH to FeePROMsize allocated:*/
/*STM32F103RBT --> 0x08000000+126K, 2K*/
EEMUL (RWX) : ORIGIN = 0x08000000+126K, LENGTH = 2K
/*STM32F103RET --> 0x08000000+508K, 4K*/
/*EEMUL (RWX) : ORIGIN = 0x08000000+508K, LENGTH = 4K*/
}
_estack = ORIGIN(RAM)+LENGTH(RAM); /* end of the stack */
_seemul = ORIGIN(EEMUL); /* start of the eeprom emulation area */
_min_stack = 0x100; /* minimum stack space to reserve for the user app */
/* check valid alignment for the vector table */
ASSERT(ORIGIN(FLASH) == ALIGN(ORIGIN(FLASH), 0x80), "Start of memory region flash not aligned for startup vector table");
SECTIONS {
/* vector table and program code goes into FLASH */
.text : {
. = ALIGN(0x80);
_isr_vectors_offs = . - 0x08000000;
KEEP(*(.isr_vectors))
. = ALIGN(4);
CREATE_OBJECT_SYMBOLS
*(.text .text.*)
} >FLASH
.rodata : ALIGN (4) {
*(.rodata .rodata.*)
. = ALIGN(4);
KEEP(*(.init))
. = ALIGN(4);
__preinit_array_start = .;
KEEP (*(.preinit_array))
__preinit_array_end = .;
. = ALIGN(4);
__init_array_start = .;
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
__init_array_end = .;
. = ALIGN(4);
KEEP(*(.fini))
. = ALIGN(4);
__fini_array_start = .;
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
__fini_array_end = .;
*(.init .init.*)
*(.fini .fini.*)
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE_HIDDEN (__preinit_array_end = .);
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
PROVIDE_HIDDEN (__init_array_end = .);
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
PROVIDE_HIDDEN (__fini_array_end = .);
. = ALIGN (8);
*(.rom)
*(.rom.b)
_etext = .;
_sidata = _etext; /* exported for the startup function */
} >FLASH
/*
this data is expected by the program to be in ram
but we have to store it in the FLASH otherwise it
will get lost between resets, so the startup code
has to copy it into RAM before the program starts
*/
.data : ALIGN (8) {
_sdata = . ; /* exported for the startup function */
. = ALIGN(4);
KEEP(*(.jcr))
*(.got.plt) *(.got)
*(.shdata)
*(.data .data.*)
. = ALIGN (8);
*(.ram)
*(.ramfunc*)
. = ALIGN(4);
_edata = . ; /* exported for the startup function */
} >RAM AT>FLASH
/* This is the uninitialized data section */
.bss (NOLOAD): {
. = ALIGN(4);
_sbss = . ; /* exported for the startup function */
*(.shbss)
*(.bss .bss.*)
*(COMMON)
. = ALIGN (8);
*(.ram.b)
. = ALIGN(4);
_ebss = . ; /* exported for the startup function */
_end = .;
__end = .;
PROVIDE(end = .);
} >RAM AT>FLASH
/* ensure there is enough room for the user stack */
._usrstack (NOLOAD): {
. = ALIGN(4);
_susrstack = . ;
. = . + _min_stack ;
. = ALIGN(4);
_eusrstack = . ;
} >RAM
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
/* DWARF 3 */
.debug_pubtypes 0 : { *(.debug_pubtypes) }
.debug_ranges 0 : { *(.debug_ranges) }
.ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }
.note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) }
}
Cuando me depurar mi programa cuando puedo utilizar la función printf de la llamada de seguimiento es el siguiente.
- principal() main.c
- _put_r() en pone.c
- __sfvwrite_r() en fvwrite.c
- _write_r() en escritor.c
- _write() en llamadas al sistema.c
- _swiwrite() en llamadas al sistema.c
- do_AngelSWI() en swi.h
En esta etapa, el 'SIGTRAP' que se recibe la señal.
¿Alguien tiene idea de a lo que va mal?