Hi folks- I have one of those bugs from hell that comes and goes without any discernable pattern to its cause, so I'm looking for assistance as to where I should start for troubleshooting.
I am writing an alternative Arduino port for the MSP430 architecture using msp430-elf-gcc, currently using the 4.9.1 release from TI - built from source on a Fedora 19 64-bit laptop. Source obtained via http://www.ti.com/tool/msp430-gcc-opensource I have a few C++ classes in the "core" folder which collect and manage CPU speed-related matters, and I've found that on occasion doing seemingly innocuous operations on these classes causes the following error on link: /opt/local/msp430-elf-gcc/lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/bin/ld: BFD (GNU Binutils) 18.104.22.16840505 internal error, aborting at ../../bfd/elf-eh-frame.c line 1726 in _bfd_elf_write_section_eh_frame /opt/local/msp430-elf-gcc/lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/bin/ld: Please report this bug. collect2: error: ld returned 1 exit status Looking at the binutils source, this is failing at: /* We don't align the section to its section alignment since the runtime library only expects all CIE/FDE records aligned at the pointer size. _bfd_elf_discard_section_eh_frame should have padded CIE/FDE records to multiple of pointer size with size_of_output_cie_fde. */ if ((sec->size % ptr_size) != 0) abort (); So a section is getting generated with improperly alignment I'm guessing? Is there any tool I could use to ascertain this - I know the compiler is building all the .o files, and it's just bombing on linking, so can msp430-elf-objdump be used to somehow spot the "odd-sized section"? I would provide more detail but the source is a bit large and the bug rather ... random (yet repeatable), so I'm mostly looking for expert advice on how I can dig deeper and hopefully spot the bug myself. FYI- Command used to build the .o files (example for main.cpp): /opt/local/msp430-elf-gcc/bin/msp430-elf-g++ -c -g -Os -ffunction-sections -fdata-sections -Wall -fpermissive -mmcu=msp430f5529 -DF_CPU_DEFAULT=16000000L -msmall -DARDUINO=10601 -DENERGIA=10601 -DARDUINO_MSP430_LPMSP430F5529 -DARDUINO_ARCH_MSP430 -DMSP430_MEMORY_small -I/home/ebrundic/Documents/Arduino/hardware/spirilis/msp430/cores/msp430 -I/home/ebrundic/Documents/Arduino/hardware/spirilis/msp430/variants/launchpad_f5529 /home/ebrundic/Documents/Arduino/hardware/spirilis/msp430/cores/msp430/main.cpp -o /tmp/build3887189002897295326.tmp/main.cpp.o Command used to link everything (core API objects get bundled up into "core.a" beforehand, then the "sketch" .o linked with it): /opt/local/msp430-elf-gcc/bin/msp430-elf-g++ -Os -Wl,--gc-sections -minrt -mmcu=msp430f5529 -o /tmp/build3887189002897295326.tmp/f5529_skunk1.cpp.elf -u main /tmp/build3887189002897295326.tmp/f5529_skunk1.cpp.o /tmp/build3887189002897295326.tmp/core.a -L/tmp/build3887189002897295326.tmp -T msp430f5529.ld -lm GCC version (msp430-elf-gcc -v): Using built-in specs. COLLECT_GCC=msp430-elf-gcc COLLECT_LTO_WRAPPER=/opt/local/msp430-elf-gcc/libexec/gcc/msp430-elf/4.9.1/lto-wrapper Target: msp430-elf Configured with: ../configure --prefix=/opt/local/msp430-elf-gcc --target=msp430-elf --enable-languages=c,c++ --disable-nls Thread model: single gcc version 4.9.1 20140707 (prerelease (msp430-14r1-167)) (GNUPro 14r1) (Based on: GCC 4.8 GDB 7.7 Binutils 2.24 Newlib 2.1) (GCC) LD version (msp430-elf-ld -v): GNU ld (GNU Binutils) 22.214.171.12440505 Thanks! ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Mspgcc-users mailing list Mspgccemail@example.com https://lists.sourceforge.net/lists/listinfo/mspgcc-users