xiaotailang commented on issue #9645:
URL: https://github.com/apache/nuttx/issues/9645#issuecomment-1639163369
Hi @acassis I followed the previous advice and enabled the debug
configuration. After tracing, I discovered the issue causing my ELF file to
fail loading. It was because I used global variables in my code, and the
compilation options lacked "-fno-common". Later, when I used GDB to debug the
ELF file "myapp_elf", I found that in most cases, breakpoints couldn't be
triggered, and the "step" command couldn't enter function internals. However,
I'm not sure if it's a problem with GDB or the compiled ELF file itself. The
compilation options I used were "-Os" and "-g". I also tried the "-O0" and "-g"
options, but if I compile the ELF with the "-O0" option, it results in an error
when loading the ELF. Is there a complete method for debugging ELF files using
GDB?
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