d958b8e1aa
elf2hex writes zeros to a segment for which MemSize > FileSize, which adheres to the ELF spec. Thus, we should calculate the total size of the file from the MemSize of the last segment, rather than the FileSize.
17 lines
861 B
Bash
Executable File
17 lines
861 B
Bash
Executable File
#!/usr/bin/env bash
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# This script find the appropriate arguments to pass to elf2hex by inspecting the given RISC-V elf binary
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# First and only argument is the binary to be converted.
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# The output of this script should be redirected to a file (as with normal elf2hex).
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binary=$1
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segments=`readelf --segments --wide $binary`
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entry_hex=`echo -e "$segments" | grep "Entry point" | cut -f3 -d' ' | sed 's/0x//' | tr [:lower:] [:upper:]`
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entry_dec=`bc <<< "ibase=16;$entry_hex"`
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length_hex=`echo "$segments" | grep "LOAD\|TLS" | tail -n 1 | tr -s [:space:] | cut -f4,7 -d' '`
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length_dec=`echo $length_hex | tr -d x | tr [:lower:] [:upper:] | tr ' ' + | sed 's/^/ibase=16;/' | sed "s/$/-$entry_hex/" | bc`
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power_2_length=`echo "x=l($length_dec)/l(2); scale=0; 2^((x+1)/1)" | bc -l`
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width=64
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depth=$((power_2_length / width))
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elf2hex $width $depth $binary $entry_dec
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