https://sourceware.org/bugzilla/show_bug.cgi?id=17940
Orlando Arias <oarias at knights dot ucf.edu> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|CLOSED |UNCONFIRMED
CC| |oarias at knights dot ucf.edu
Resolution|FIXED |---
Ever confirmed|1 |0
--- Comment #5 from Orlando Arias <oarias at knights dot ucf.edu> ---
Greetings,
I compiled the msp430-elf toolchain and I seem to have encountered this error
even after applying the aforementioned patch. What is more, when disassembling
the binary, I have encountered a few problems with the way label names are
recorded in the resulting ELF.
$ msp430-elf-gcc -v
Using built-in specs.
COLLECT_GCC=msp430-elf-gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/msp430-elf/5.1.0/lto-wrapper
Target: msp430-elf
Configured with: ../configure --prefix=/usr --program-prefix=msp430-elf-
--target=msp430-elf --host=x86_64-unknown-linux-gnu
--build=x86_64-unknown-linux-gnu --disable-shared --disable-nls
--disable-threads --enable-languages=c,c++ --enable-multilib
--with-local-prefix=/usr/msp430-elf --with-sysroot=/usr/msp430-elf
--with-as=/usr/bin/msp430-elf-as --with-ld=/usr/bin/msp430-elf-ld
--disable-libgomp --enable-interwork --enable-addons : (reconfigured)
../configure --prefix=/usr --program-prefix=msp430-elf- --target=msp430-elf
--host=x86_64-unknown-linux-gnu --build=x86_64-unknown-linux-gnu
--disable-shared --disable-nls --disable-threads --enable-languages=c,c++
--enable-multilib --with-local-prefix=/usr/msp430-elf
--with-sysroot=/usr/msp430-elf --with-as=/usr/bin/msp430-elf-as
--with-ld=/usr/bin/msp430-elf-ld --disable-libgomp --enable-interwork
--enable-addons : (reconfigured) ../configure --prefix=/usr
--program-prefix=msp430-elf- --target=msp430-elf
--host=x86_64-unknown-linux-gnu --build=x86_64-unknown-linux-gnu
--disable-shared --disable-nls --disable-threads --enable-languages=c,c++
--enable-multilib --with-local-prefix=/usr/msp430-elf
--with-sysroot=/usr/msp430-elf --with-as=/usr/bin/msp430-elf-as
--with-ld=/usr/bin/msp430-elf-ld --disable-libgomp --enable-interwork
--enable-addons
Thread model: single
gcc version 5.1.0 (GCC)
$ msp430-elf-objdump -v
GNU objdump (GNU Binutils) 2.25
Copyright (C) 2014 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
$ msp430-elf-objdump -S blink.elf 2>/dev/null | hexdump -C | less
00002d50 33 35 35 36 09 09 3b 23 30 78 66 38 34 34 0a 0a |3556..;#0xf844..|
00002d60 30 30 30 30 66 61 36 34 20 3c 4c 30 01 3e 3a 0a |0000fa64 <L0.>:.|
00002d70 20 20 20 20 66 61 36 34 3a 09 62 30 20 31 32 20 | fa64:.b0 12 |
00002d80 62 30 20 66 38 20 09 63 61 6c 6c 09 23 36 33 36 |b0 f8 .call.#636|
00002d90 36 34 09 09 3b 23 30 78 66 38 62 30 0a 0a 30 30 |64..;#0xf8b0..00|
00002da0 30 30 66 61 36 38 20 3c 4c 30 01 3e 3a 0a 20 20 |00fa68 <L0.>:. |
00002db0 20 20 66 61 36 38 3a 09 33 30 20 34 31 20 20 20 | fa68:.30 41 |
00002dc0 20 20 20 20 09 72 65 74 09 09 09 0a | .ret....|
[output trimmed, notice the 0x01 after L0]
$ cat main.c
#include <msp430.h>
#ifdef __GNUC__
__attribute__((interrupt(TIMERA0_VECTOR)))
#else
#pragma vector=TIMER0_A0_VECTOR
#endif
void TimerA_vec(void) {
P1OUT ^= 0xff;
}
int main(void) {
WDTCTL = WDTPW | WDTHOLD;
P1DIR = 0xff;
P1OUT = 0x01;
TACCR0 = 62499;
TACCTL0 = CCIE;
TACTL = (TASSEL1 | MC0 | ID1 | ID0);
__bis_SR_register(CPUOFF | GIE);
return 0;
}
I am changing the bug to unconfirmed provided that I do not know if this is a
compilation issue on my side when building the toolchain or if it is a problem
with binutils or newlib [or the compiler itself]. Thank you for your time and
sorry for any inconvenience.
Cheers,
Orlando.
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