48 lines
1.7 KiB
Bash
Executable file
48 lines
1.7 KiB
Bash
Executable file
#!/bin/bash
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#
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# addrsource <addr> [<filename>]
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#
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# Given a memory address (in hex), print (if available) the C source code line
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# and disassembly associated with that address.
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#
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# <filename>, if provided, should be the name of the ELF (*.out) file for the
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# firmware image (typically located in the "build" subdirectory). If
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# <filename> is not provided, the script will look for a "build" subdirectory
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# of the current directory, and look in there for a filename matching "*.out"
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# and use that.
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print_usage() {
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echo "Usage: $0 addr [file.out]" >&2
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}
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addr="$1"
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exefile="$2"
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# If user didn't provide any parameters, or attempted to use a switch (such as
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# "--help"), just print the usage message and exit. If they provided an 'addr'
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# parameter, but it didn't start with "0x", then prepend "0x" to it before
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# continuing..
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case "$addr" in
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"") print_usage; exit 1 ;;
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-*) print_usage; exit 1 ;;
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0x*) ;;
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*) addr="0x$addr" ;;
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esac
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if [[ -z "$exefile" ]]; then
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# User didn't specify what ELF (.out) file to look things up in.
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# See if we can find an appropriate .out file in the build subdirectory
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# (there's usually only one)
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exefile=$(ls build/*.out)
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if [[ -z "$exefile" ]] || [[ "${exefile#* }" != "$exefile" ]]; then
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# Either we couldn't find anything, or we found more than one of them.
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echo "Unable to determine which .out file to use. You will need to specify it explicitly on the command line." >&2
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echo "" >&2
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print_usage
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exit 1
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fi
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fi
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# All our parameters should be correct now.
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# Invoke GDB to do the hard work for us...
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xtensa-lx106-elf-gdb -batch "$exefile" -ex "list *$addr" -ex "info line *$addr" -ex "disassemble $addr"
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