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Greetings, I was playing around a bit with the msp430-elf toolchain and I ran into some odd behavior which I am not sure if it is intended. I wrote a small program in assembly [attached] which I am building with the [also attached] makefiles. When passing -nostdlib to the linker command, the default/simulator linker script is used instead of the MCU specific linker script as specified in the parameter list with the -mmcu flag. This results in all of the code being eliminated from the program and a .text section of 0 bytes in size [as expected given the --gc-sections]. I am able to override the behavior using the proper -Wl,-T commands to force the utilization of a linker script, but this seems less than elegant. I expected the linker to still use the MCU specific linker script. The documentation is not very clear as to what the expected behavior should be in this case regarding the usage of linker scripts. I thought I would ask this here before filing a bug. Thank you. Cheers, Orlando.
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msp430g2553.ld
Description: Text document
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msp430g2553_symbols.ld
Description: Text document
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Makefile
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Makefile.in
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#include <msp430.h> .section .text .globl timer0_isr .type timer0_isr, @function timer0_isr: xor.b #0xff, P1OUT reti .globl _start .type _start, @function _start: mov.w #(WDTPW | WDTHOLD), &WDTCTL mov.w #__stack, sp mov.b #0xff, &P1DIR mov.b #0x01, &P1OUT mov.w #CCIE, &TACCTL0 mov.w #62449, &TACCR0 mov.w #(TASSEL1 | MC0 | ID_3), &TACTL bis.w #(CPUOFF | GIE), sr nop .globl main .type main, @function main: jmp main .section "__interrupt_vector_reset" .short _start .section "__interrupt_vector_timer0_a0" .short timer0_isr
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signature.asc
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