From 4b245f8744ae7abc8d77a9b90f273106eee3541f Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Tue, 15 Nov 2011 03:10:04 -0500 Subject: Remove CS3-style initialization. Remove libcs3-related bits from support/ld. Break them out into libmaple proper and Wirish as appropriate: vector table definition and ISR declarations go into libmaple proper, and startup code goes into Wirish. Vector table symbols are included into common.inc from an STM32 family-specific directory under support/ld/stm32. This is a combination of 5 commits. Individual commit messages follow: libcs3_stm32_src: Don't depend on cs3.h. So we can use the existing toolchain. Move ISR decls/vector table into libmaple proper. This allows us to configure the vector table on a per-family basis. - Move support/ld/libcs3_stm32_src/stm32_isrs.S stm32_vector_table.S to libmaple/stm32f1/isrs_performance.S vector_table_performance.S, respectively. The directory libmaple/stm32f1/ is intended to hold all STM32F1-specific code within libmaple. Obviously, there's a lot of work to do before this becomes true. - support/ld/libcs3_stm32_src/Makefile: Don't try to compile stm32_isrs.S and stm32_vector_table.S anymore. - Add libmaple/stm32f1/rules.mk to include these new files in the standard libmaple build. - support/make/target-config.mk: Add LIBMAPLE_MODULE_FAMILY, which selects a directory to use as a family-specific libmaple submodule. - Makefile: Add LIBMAPLE_MODULE_FAMILY to LIBMAPLE_MODULES. Remove support/ld/libcs3_stm32_src and derived object files. From support/ld/libcs3_stm32_src, move start.S and start_c.c into Wirish. Modify wirish/rules.mk accordingly. Delete support/ld/libcs3_stm32_*_density.a. These are no longer necessary, as the relevant objects are included in the standard Wirish build. Remove the GROUP statements from the board linker scripts accordingly. Remove SEARCH_DIR(.) from common.inc; it's no longer necessary. Also fix up some comments that are now out of date. wirish/start_c.c: Don't use CS3-style memory initialization. Switch memory initialization to a simpler style of initializing .data if necessary, then zeroing .bss. Initializing .data is only necessary during Flash builds, since during RAM builds, LOADADDR(.data) == ADDR(.data). This makes libmaple completely incompatible with the CS3 startup sequence. Subsequent commits will clean up the namespace to reflect that fact. Signed-off-by: Marti Bolivar --- support/ld/libcs3_stm32_src/Makefile | 35 ---- support/ld/libcs3_stm32_src/start.S | 27 --- support/ld/libcs3_stm32_src/start_c.c | 58 ------ support/ld/libcs3_stm32_src/stm32_isrs.S | 235 ----------------------- support/ld/libcs3_stm32_src/stm32_vector_table.S | 90 --------- 5 files changed, 445 deletions(-) delete mode 100644 support/ld/libcs3_stm32_src/Makefile delete mode 100644 support/ld/libcs3_stm32_src/start.S delete mode 100644 support/ld/libcs3_stm32_src/start_c.c delete mode 100644 support/ld/libcs3_stm32_src/stm32_isrs.S delete mode 100644 support/ld/libcs3_stm32_src/stm32_vector_table.S (limited to 'support/ld/libcs3_stm32_src') diff --git a/support/ld/libcs3_stm32_src/Makefile b/support/ld/libcs3_stm32_src/Makefile deleted file mode 100644 index 834cdad..0000000 --- a/support/ld/libcs3_stm32_src/Makefile +++ /dev/null @@ -1,35 +0,0 @@ -# setup environment - -TARGET_ARCH = -mcpu=cortex-m3 -mthumb - -CC = arm-none-eabi-gcc -CFLAGS = - -AS = $(CC) -x assembler-with-cpp -c $(TARGET_ARCH) -ASFLAGS = - -AR = arm-none-eabi-ar -ARFLAGS = cr - -LIB_OBJS = stm32_vector_table.o stm32_isrs.o start.o start_c.o - -help: - @echo "Targets:" - @echo "\t medium-density: Target medium density chips (e.g. Maple)" - @echo "\t high-density: Target high density chips (e.g. Maple-native)" - -.PHONY: help medium high - -medium-density: $(LIB_OBJS) - $(AR) $(ARFLAGS) libcs3_stm32_med_density.a $(LIB_OBJS) - rm -f $(LIB_OBJS) - -high-density: CFLAGS := -DSTM32_HIGH_DENSITY -high-density: $(LIB_OBJS) - $(AR) $(ARFLAGS) libcs3_stm32_high_density.a $(LIB_OBJS) - rm -f $(LIB_OBJS) - -# clean -.PHONY: clean -clean: - -rm -f $(LIB_OBJS) *.a diff --git a/support/ld/libcs3_stm32_src/start.S b/support/ld/libcs3_stm32_src/start.S deleted file mode 100644 index 4d1d405..0000000 --- a/support/ld/libcs3_stm32_src/start.S +++ /dev/null @@ -1,27 +0,0 @@ -/* - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ - - .text - .code 16 - .thumb_func - - .globl _start - .type _start, %function -_start: - .fnstart - ldr r1,=__cs3_stack - mov sp,r1 - ldr r1,=__cs3_start_c - bx r1 - .pool - .cantunwind - .fnend diff --git a/support/ld/libcs3_stm32_src/start_c.c b/support/ld/libcs3_stm32_src/start_c.c deleted file mode 100644 index 2ab0212..0000000 --- a/support/ld/libcs3_stm32_src/start_c.c +++ /dev/null @@ -1,58 +0,0 @@ -/* CS3 start_c routine. - * - * Copyright (c) 2006, 2007 CodeSourcery Inc - * - * The authors hereby grant permission to use, copy, modify, distribute, - * and license this software and its documentation for any purpose, provided - * that existing copyright notices are retained in all copies and that this - * notice is included verbatim in any distributions. No written agreement, - * license, or royalty fee is required for any of the authorized uses. - * Modifications to this software may be copyrighted by their authors - * and need not follow the licensing terms described here, provided that - * the new terms are clearly indicated on the first page of each file where - * they apply. - */ - -#include "cs3.h" - -extern void __libc_init_array (void); - -extern int main (int, char **, char **); - -extern void exit (int) __attribute__ ((noreturn, weak)); - -void __attribute ((noreturn)) -__cs3_start_c (void) -{ - unsigned regions = __cs3_region_num; - const struct __cs3_region *rptr = __cs3_regions; - int exit_code; - - /* Initialize memory */ - for (regions = __cs3_region_num, rptr = __cs3_regions; regions--; rptr++) - { - long long *src = (long long *)rptr->init; - long long *dst = (long long *)rptr->data; - unsigned limit = rptr->init_size; - unsigned count; - - if (src != dst) - for (count = 0; count != limit; count += sizeof (long long)) - *dst++ = *src++; - else - dst = (long long *)((char *)dst + limit); - limit = rptr->zero_size; - for (count = 0; count != limit; count += sizeof (long long)) - *dst++ = 0; - } - - /* Run initializers. */ - __libc_init_array (); - - exit_code = main (0, NULL, NULL); - if (exit) - exit (exit_code); - /* If exit is NULL, make sure we don't return. */ - for (;;) - continue; -} diff --git a/support/ld/libcs3_stm32_src/stm32_isrs.S b/support/ld/libcs3_stm32_src/stm32_isrs.S deleted file mode 100644 index be102e7..0000000 --- a/support/ld/libcs3_stm32_src/stm32_isrs.S +++ /dev/null @@ -1,235 +0,0 @@ -/* STM32 ISR weak declarations */ - - .thumb - -/* Default handler for all non-overridden interrupts and exceptions */ - .globl __default_handler - .type __default_handler, %function - -__default_handler: - b . - - .weak __exc_nmi - .globl __exc_nmi - .set __exc_nmi, __default_handler - .weak __exc_hardfault - .globl __exc_hardfault - .set __exc_hardfault, __default_handler - .weak __exc_memmanage - .globl __exc_memmanage - .set __exc_memmanage, __default_handler - .weak __exc_busfault - .globl __exc_busfault - .set __exc_busfault, __default_handler - .weak __exc_usagefault - .globl __exc_usagefault - .set __exc_usagefault, __default_handler - .weak __stm32reservedexception7 - .globl __stm32reservedexception7 - .set __stm32reservedexception7, __default_handler - .weak __stm32reservedexception8 - .globl __stm32reservedexception8 - .set __stm32reservedexception8, __default_handler - .weak __stm32reservedexception9 - .globl __stm32reservedexception9 - .set __stm32reservedexception9, __default_handler - .weak __stm32reservedexception10 - .globl __stm32reservedexception10 - .set __stm32reservedexception10, __default_handler - .weak __exc_svc - .globl __exc_svc - .set __exc_svc, __default_handler - .weak __exc_debug_monitor - .globl __exc_debug_monitor - .set __exc_debug_monitor, __default_handler - .weak __stm32reservedexception13 - .globl __stm32reservedexception13 - .set __stm32reservedexception13, __default_handler - .weak __exc_pendsv - .globl __exc_pendsv - .set __exc_pendsv, __default_handler - .weak __exc_systick - .globl __exc_systick - .set __exc_systick, __default_handler - .weak __irq_wwdg - .globl __irq_wwdg - .set __irq_wwdg, __default_handler - .weak __irq_pvd - .globl __irq_pvd - .set __irq_pvd, __default_handler - .weak __irq_tamper - .globl __irq_tamper - .set __irq_tamper, __default_handler - .weak __irq_rtc - .globl __irq_rtc - .set __irq_rtc, __default_handler - .weak __irq_flash - .globl __irq_flash - .set __irq_flash, __default_handler - .weak __irq_rcc - .globl __irq_rcc - .set __irq_rcc, __default_handler - .weak __irq_exti0 - .globl __irq_exti0 - .set __irq_exti0, __default_handler - .weak __irq_exti1 - .globl __irq_exti1 - .set __irq_exti1, __default_handler - .weak __irq_exti2 - .globl __irq_exti2 - .set __irq_exti2, __default_handler - .weak __irq_exti3 - .globl __irq_exti3 - .set __irq_exti3, __default_handler - .weak __irq_exti4 - .globl __irq_exti4 - .set __irq_exti4, __default_handler - .weak __irq_dma1_channel1 - .globl __irq_dma1_channel1 - .set __irq_dma1_channel1, __default_handler - .weak __irq_dma1_channel2 - .globl __irq_dma1_channel2 - .set __irq_dma1_channel2, __default_handler - .weak __irq_dma1_channel3 - .globl __irq_dma1_channel3 - .set __irq_dma1_channel3, __default_handler - .weak __irq_dma1_channel4 - .globl __irq_dma1_channel4 - .set __irq_dma1_channel4, __default_handler - .weak __irq_dma1_channel5 - .globl __irq_dma1_channel5 - .set __irq_dma1_channel5, __default_handler - .weak __irq_dma1_channel6 - .globl __irq_dma1_channel6 - .set __irq_dma1_channel6, __default_handler - .weak __irq_dma1_channel7 - .globl __irq_dma1_channel7 - .set __irq_dma1_channel7, __default_handler - .weak __irq_adc - .globl __irq_adc - .set __irq_adc, __default_handler - .weak __irq_usb_hp_can_tx - .globl __irq_usb_hp_can_tx - .set __irq_usb_hp_can_tx, __default_handler - .weak __irq_usb_lp_can_rx0 - .globl __irq_usb_lp_can_rx0 - .set __irq_usb_lp_can_rx0, __default_handler - .weak __irq_can_rx1 - .globl __irq_can_rx1 - .set __irq_can_rx1, __default_handler - .weak __irq_can_sce - .globl __irq_can_sce - .set __irq_can_sce, __default_handler - .weak __irq_exti9_5 - .globl __irq_exti9_5 - .set __irq_exti9_5, __default_handler - .weak __irq_tim1_brk - .globl __irq_tim1_brk - .set __irq_tim1_brk, __default_handler - .weak __irq_tim1_up - .globl __irq_tim1_up - .set __irq_tim1_up, __default_handler - .weak __irq_tim1_trg_com - .globl __irq_tim1_trg_com - .set __irq_tim1_trg_com, __default_handler - .weak __irq_tim1_cc - .globl __irq_tim1_cc - .set __irq_tim1_cc, __default_handler - .weak __irq_tim2 - .globl __irq_tim2 - .set __irq_tim2, __default_handler - .weak __irq_tim3 - .globl __irq_tim3 - .set __irq_tim3, __default_handler - .weak __irq_tim4 - .globl __irq_tim4 - .set __irq_tim4, __default_handler - .weak __irq_i2c1_ev - .globl __irq_i2c1_ev - .set __irq_i2c1_ev, __default_handler - .weak __irq_i2c1_er - .globl __irq_i2c1_er - .set __irq_i2c1_er, __default_handler - .weak __irq_i2c2_ev - .globl __irq_i2c2_ev - .set __irq_i2c2_ev, __default_handler - .weak __irq_i2c2_er - .globl __irq_i2c2_er - .set __irq_i2c2_er, __default_handler - .weak __irq_spi1 - .globl __irq_spi1 - .set __irq_spi1, __default_handler - .weak __irq_spi2 - .globl __irq_spi2 - .set __irq_spi2, __default_handler - .weak __irq_usart1 - .globl __irq_usart1 - .set __irq_usart1, __default_handler - .weak __irq_usart2 - .globl __irq_usart2 - .set __irq_usart2, __default_handler - .weak __irq_usart3 - .globl __irq_usart3 - .set __irq_usart3, __default_handler - .weak __irq_exti15_10 - .globl __irq_exti15_10 - .set __irq_exti15_10, __default_handler - .weak __irq_rtcalarm - .globl __irq_rtcalarm - .set __irq_rtcalarm, __default_handler - .weak __irq_usbwakeup - .globl __irq_usbwakeup - .set __irq_usbwakeup, __default_handler -#if defined (STM32_HIGH_DENSITY) - .weak __irq_tim8_brk - .globl __irq_tim8_brk - .set __irq_tim8_brk, __default_handler - .weak __irq_tim8_up - .globl __irq_tim8_up - .set __irq_tim8_up, __default_handler - .weak __irq_tim8_trg_com - .globl __irq_tim8_trg_com - .set __irq_tim8_trg_com, __default_handler - .weak __irq_tim8_cc - .globl __irq_tim8_cc - .set __irq_tim8_cc, __default_handler - .weak __irq_adc3 - .globl __irq_adc3 - .set __irq_adc3, __default_handler - .weak __irq_fsmc - .globl __irq_fsmc - .set __irq_fsmc, __default_handler - .weak __irq_sdio - .globl __irq_sdio - .set __irq_sdio, __default_handler - .weak __irq_tim5 - .globl __irq_tim5 - .set __irq_tim5, __default_handler - .weak __irq_spi3 - .globl __irq_spi3 - .set __irq_spi3, __default_handler - .weak __irq_uart4 - .globl __irq_uart4 - .set __irq_uart4, __default_handler - .weak __irq_uart5 - .globl __irq_uart5 - .set __irq_uart5, __default_handler - .weak __irq_tim6 - .globl __irq_tim6 - .set __irq_tim6, __default_handler - .weak __irq_tim7 - .globl __irq_tim7 - .set __irq_tim7, __default_handler - .weak __irq_dma2_channel1 - .globl __irq_dma2_channel1 - .set __irq_dma2_channel1, __default_handler - .weak __irq_dma2_channel2 - .globl __irq_dma2_channel2 - .set __irq_dma2_channel2, __default_handler - .weak __irq_dma2_channel3 - .globl __irq_dma2_channel3 - .set __irq_dma2_channel3, __default_handler - .weak __irq_dma2_channel4_5 - .globl __irq_dma2_channel4_5 - .set __irq_dma2_channel4_5, __default_handler -#endif /* STM32_HIGH_DENSITY */ diff --git a/support/ld/libcs3_stm32_src/stm32_vector_table.S b/support/ld/libcs3_stm32_src/stm32_vector_table.S deleted file mode 100644 index 7067d95..0000000 --- a/support/ld/libcs3_stm32_src/stm32_vector_table.S +++ /dev/null @@ -1,90 +0,0 @@ -/* STM32 vector table */ - - .section ".stm32.interrupt_vector" - - .globl __cs3_stm32_vector_table - .type __cs3_stm32_vector_table, %object - -__cs3_stm32_vector_table: -/* CM3 core interrupts */ - .long __cs3_stack - .long __cs3_reset - .long __exc_nmi - .long __exc_hardfault - .long __exc_memmanage - .long __exc_busfault - .long __exc_usagefault - .long __stm32reservedexception7 - .long __stm32reservedexception8 - .long __stm32reservedexception9 - .long __stm32reservedexception10 - .long __exc_svc - .long __exc_debug_monitor - .long __stm32reservedexception13 - .long __exc_pendsv - .long __exc_systick -/* Peripheral interrupts */ - .long __irq_wwdg - .long __irq_pvd - .long __irq_tamper - .long __irq_rtc - .long __irq_flash - .long __irq_rcc - .long __irq_exti0 - .long __irq_exti1 - .long __irq_exti2 - .long __irq_exti3 - .long __irq_exti4 - .long __irq_dma1_channel1 - .long __irq_dma1_channel2 - .long __irq_dma1_channel3 - .long __irq_dma1_channel4 - .long __irq_dma1_channel5 - .long __irq_dma1_channel6 - .long __irq_dma1_channel7 - .long __irq_adc - .long __irq_usb_hp_can_tx - .long __irq_usb_lp_can_rx0 - .long __irq_can_rx1 - .long __irq_can_sce - .long __irq_exti9_5 - .long __irq_tim1_brk - .long __irq_tim1_up - .long __irq_tim1_trg_com - .long __irq_tim1_cc - .long __irq_tim2 - .long __irq_tim3 - .long __irq_tim4 - .long __irq_i2c1_ev - .long __irq_i2c1_er - .long __irq_i2c2_ev - .long __irq_i2c2_er - .long __irq_spi1 - .long __irq_spi2 - .long __irq_usart1 - .long __irq_usart2 - .long __irq_usart3 - .long __irq_exti15_10 - .long __irq_rtcalarm - .long __irq_usbwakeup -#if defined (STM32_HIGH_DENSITY) - .long __irq_tim8_brk - .long __irq_tim8_up - .long __irq_tim8_trg_com - .long __irq_tim8_cc - .long __irq_adc3 - .long __irq_fsmc - .long __irq_sdio - .long __irq_tim5 - .long __irq_spi3 - .long __irq_uart4 - .long __irq_uart5 - .long __irq_tim6 - .long __irq_tim7 - .long __irq_dma2_channel1 - .long __irq_dma2_channel2 - .long __irq_dma2_channel3 - .long __irq_dma2_channel4_5 -#endif /* STM32_HIGH_DENSITY */ - - .size __cs3_stm32_vector_table, . - __cs3_stm32_vector_table -- cgit v1.2.3