74cd991e7e
That way, data source address does not depend on any other unrelated change in linker script. This also fixes cases when .data input section is aligned on 8 bytes. The new version does not provide any address for the output section so that it is aligned to the strictest input section. The _data_loadaddr symbol will always take this alignment into account.
265 lines
7.9 KiB
C
265 lines
7.9 KiB
C
/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
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* Copyright (C) 2012 Michael Ossmann <mike@ossmann.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define WEAK __attribute__ ((weak))
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/* Symbols exported by the linker script(s): */
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extern unsigned _data_loadaddr, _data, _edata, _ebss, _stack;
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extern unsigned _etext_ram, _text_ram, _etext_rom;
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void main(void);
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void reset_handler(void);
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void blocking_handler(void);
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void null_handler(void);
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void WEAK nmi_handler(void);
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void WEAK hard_fault_handler(void);
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void WEAK mem_manage_handler(void);
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void WEAK bus_fault_handler(void);
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void WEAK usage_fault_handler(void);
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void WEAK sv_call_handler(void);
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void WEAK debug_monitor_handler(void);
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void WEAK pend_sv_handler(void);
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void WEAK sys_tick_handler(void);
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void WEAK dac_irqhandler(void);
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void WEAK m0core_irqhandler(void);
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void WEAK dma_irqhandler(void);
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void WEAK ethernet_irqhandler(void);
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void WEAK sdio_irqhandler(void);
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void WEAK lcd_irqhandler(void);
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void WEAK usb0_irqhandler(void);
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void WEAK usb1_irqhandler(void);
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void WEAK sct_irqhandler(void);
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void WEAK ritimer_irqhandler(void);
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void WEAK timer0_irqhandler(void);
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void WEAK timer1_irqhandler(void);
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void WEAK timer2_irqhandler(void);
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void WEAK timer3_irqhandler(void);
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void WEAK mcpwm_irqhandler(void);
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void WEAK adc0_irqhandler(void);
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void WEAK i2c0_irqhandler(void);
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void WEAK i2c1_irqhandler(void);
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void WEAK spi_irqhandler(void);
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void WEAK adc1_irqhandler(void);
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void WEAK ssp0_irqhandler(void);
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void WEAK ssp1_irqhandler(void);
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void WEAK usart0_irqhandler(void);
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void WEAK uart1_irqhandler(void);
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void WEAK usart2_irqhandler(void);
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void WEAK usart3_irqhandler(void);
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void WEAK i2s0_irqhandler(void);
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void WEAK i2s1_irqhandler(void);
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void WEAK spifi_irqhandler(void);
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void WEAK sgpio_irqhandler(void);
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void WEAK pin_int0_irqhandler(void);
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void WEAK pin_int1_irqhandler(void);
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void WEAK pin_int2_irqhandler(void);
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void WEAK pin_int3_irqhandler(void);
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void WEAK pin_int4_irqhandler(void);
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void WEAK pin_int5_irqhandler(void);
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void WEAK pin_int6_irqhandler(void);
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void WEAK pin_int7_irqhandler(void);
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void WEAK gint0_irqhandler(void);
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void WEAK gint1_irqhandler(void);
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void WEAK eventrouter_irqhandler(void);
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void WEAK c_can1_irqhandler(void);
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void WEAK atimer_irqhandler(void);
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void WEAK rtc_irqhandler(void);
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void WEAK wwdt_irqhandler(void);
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void WEAK c_can0_irqhandler(void);
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void WEAK qei_irqhandler(void);
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__attribute__ ((section(".vectors")))
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void (*const vector_table[]) (void) = {
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/* Cortex-M4 interrupts */
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(void*)&_stack,
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reset_handler,
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nmi_handler,
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hard_fault_handler,
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mem_manage_handler,
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bus_fault_handler,
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usage_fault_handler,
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0, 0, 0, 0, /* reserved */
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sv_call_handler,
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debug_monitor_handler,
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0, /* reserved */
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pend_sv_handler,
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sys_tick_handler,
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/* LPC43xx interrupts */
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dac_irqhandler,
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m0core_irqhandler,
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dma_irqhandler,
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0, /* reserved */
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0, /* reserved */
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ethernet_irqhandler,
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sdio_irqhandler,
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lcd_irqhandler,
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usb0_irqhandler,
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usb1_irqhandler,
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sct_irqhandler,
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ritimer_irqhandler,
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timer0_irqhandler,
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timer1_irqhandler,
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timer2_irqhandler,
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timer3_irqhandler,
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mcpwm_irqhandler,
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adc0_irqhandler,
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i2c0_irqhandler,
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i2c1_irqhandler,
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spi_irqhandler,
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adc1_irqhandler,
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ssp0_irqhandler,
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ssp1_irqhandler,
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usart0_irqhandler,
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uart1_irqhandler,
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usart2_irqhandler,
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usart3_irqhandler,
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i2s0_irqhandler,
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i2s1_irqhandler,
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spifi_irqhandler,
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sgpio_irqhandler,
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pin_int0_irqhandler,
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pin_int1_irqhandler,
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pin_int2_irqhandler,
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pin_int3_irqhandler,
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pin_int4_irqhandler,
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pin_int5_irqhandler,
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pin_int6_irqhandler,
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pin_int7_irqhandler,
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gint0_irqhandler,
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gint1_irqhandler,
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eventrouter_irqhandler,
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c_can1_irqhandler,
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0, /* reserved */
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0, /* reserved */
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atimer_irqhandler,
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rtc_irqhandler,
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0, /* reserved */
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wwdt_irqhandler,
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0, /* reserved */
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c_can0_irqhandler,
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qei_irqhandler,
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};
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#define MMIO32(addr) (*(volatile unsigned long*)(addr))
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#define CREG_M4MEMMAP MMIO32( (0x40043000 + 0x100) )
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void reset_handler(void)
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{
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volatile unsigned *src, *dest;
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__asm__("MSR msp, %0" : : "r"(&_stack));
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/* Copy the code from ROM to Real RAM (if enabled) */
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if( (&_etext_ram-&_text_ram) > 0 )
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{
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src = &_etext_rom-(&_etext_ram-&_text_ram);
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/* Change Shadow memory to ROM (for Debug Purpose in case Boot has not set correctly the M4MEMMAP because of debug) */
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CREG_M4MEMMAP = (unsigned long)src;
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for(dest = &_text_ram; dest < &_etext_ram; )
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{
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*dest++ = *src++;
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}
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/* Change Shadow memory to Real RAM */
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CREG_M4MEMMAP = (unsigned long)&_text_ram;
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/* Continue Execution in RAM */
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}
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for (src = &_data_loadaddr, dest = &_data; dest < &_edata; src++, dest++)
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*dest = *src;
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while (dest < &_ebss)
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*dest++ = 0;
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/* Call the application's entry point. */
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main();
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}
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void blocking_handler(void)
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{
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while (1) ;
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}
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void null_handler(void)
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{
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/* Do nothing. */
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}
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#pragma weak nmi_handler = null_handler
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#pragma weak hard_fault_handler = blocking_handler
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#pragma weak mem_manage_handler = blocking_handler
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#pragma weak bus_fault_handler = blocking_handler
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#pragma weak usage_fault_handler = blocking_handler
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#pragma weak sv_call_handler = null_handler
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#pragma weak debug_monitor_handler = null_handler
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#pragma weak pend_sv_handler = null_handler
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#pragma weak sys_tick_handler = null_handler
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#pragma weak dac_irqhandler = null_handler
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#pragma weak m0core_irqhandler = null_handler
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#pragma weak dma_irqhandler = null_handler
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#pragma weak ethernet_irqhandler = null_handler
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#pragma weak sdio_irqhandler = null_handler
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#pragma weak lcd_irqhandler = null_handler
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#pragma weak usb0_irqhandler = null_handler
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#pragma weak usb1_irqhandler = null_handler
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#pragma weak sct_irqhandler = null_handler
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#pragma weak ritimer_irqhandler = null_handler
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#pragma weak timer0_irqhandler = null_handler
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#pragma weak timer1_irqhandler = null_handler
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#pragma weak timer2_irqhandler = null_handler
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#pragma weak timer3_irqhandler = null_handler
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#pragma weak mcpwm_irqhandler = null_handler
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#pragma weak adc0_irqhandler = null_handler
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#pragma weak i2c0_irqhandler = null_handler
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#pragma weak i2c1_irqhandler = null_handler
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#pragma weak spi_irqhandler = null_handler
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#pragma weak adc1_irqhandler = null_handler
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#pragma weak ssp0_irqhandler = null_handler
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#pragma weak ssp1_irqhandler = null_handler
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#pragma weak usart0_irqhandler = null_handler
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#pragma weak uart1_irqhandler = null_handler
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#pragma weak usart2_irqhandler = null_handler
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#pragma weak usart3_irqhandler = null_handler
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#pragma weak i2s0_irqhandler = null_handler
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#pragma weak i2s1_irqhandler = null_handler
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#pragma weak spifi_irqhandler = null_handler
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#pragma weak sgpio_irqhandler = null_handler
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#pragma weak pin_int0_irqhandler = null_handler
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#pragma weak pin_int1_irqhandler = null_handler
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#pragma weak pin_int2_irqhandler = null_handler
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#pragma weak pin_int3_irqhandler = null_handler
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#pragma weak pin_int4_irqhandler = null_handler
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#pragma weak pin_int5_irqhandler = null_handler
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#pragma weak pin_int6_irqhandler = null_handler
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#pragma weak pin_int7_irqhandler = null_handler
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#pragma weak gint0_irqhandler = null_handler
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#pragma weak gint1_irqhandler = null_handler
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#pragma weak eventrouter_irqhandler = null_handler
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#pragma weak c_can1_irqhandler = null_handler
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#pragma weak atimer_irqhandler = null_handler
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#pragma weak rtc_irqhandler = null_handler
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#pragma weak wwdt_irqhandler = null_handler
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#pragma weak c_can0_irqhandler = null_handler
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#pragma weak qei_irqhandler = null_handler
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