85 lines
2.8 KiB
Bash
Executable File
85 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
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# Script originally based on GTK+'s own abicheck.sh; it should be run anytime
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# there is a change in the stable branch of wxWidgets which could lead to an
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# ABI breakage and thus result in a binary-incompatible change (see tech docs).
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#
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expected_abi_file="expected_abi"
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actual_abi_file="actual_abi"
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if [[ "$(uname)" == "Darwin" ]]; then
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file_mask=*.dylib
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nm_options="-g -U"
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else
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file_mask=*.so
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nm_options="-D -g --defined-only"
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fi
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if [[ "$1" == "--generate" ]]; then
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# IMPORTANT: we need a shared build of wxWidgets to proceed
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if [[ $(echo $file_mask) == "$file_mask" ]]; then
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echo "No shared objects ($file_mask) were found... aborting"
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exit 1
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fi
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# generated the "expected ABI" for later comparison
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rm -f $expected_abi_file
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for library in $file_mask; do
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# NOTE: don't use -C option as otherwise cut won't work correctly
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nm $nm_options $library | cut -d ' ' -f 3 | sort >>$expected_abi_file
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done
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echo "Expected wxWidgets ABI generated in \"$expected_abi_file\"..."
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elif [[ -z "$1" ]]; then
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if [[ ! -f "$expected_abi_file" ]]; then
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echo "The file containing the expected wxWidgets ABI '$expected_abi_file' does not exist!"
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echo "Please generate it first using the '--generate' option"
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exit 1
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fi
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echo "Comparing actual ABI with the expected ABI (loading it from \"$expected_abi_file\")..."
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# IMPORTANT: we need a shared build of wxWidgets to do the check
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if [[ $(echo $file_mask) == "*$file_mask" ]]; then
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echo "No shared objects ($file_mask) were found... aborting"
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exit 1
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fi
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rm -f $actual_abi_file
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for library in $file_mask; do
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# NOTE: don't use -C option as otherwise cut won't work correctly
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nm $nm_options $library | cut -d ' ' -f 3 | sort >>$actual_abi_file
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done
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result=`diff -u $expected_abi_file $actual_abi_file`
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if [[ -z "$result" ]]; then
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echo "No binary (in)compatible changes were found."
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else
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echo "========================================================="
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echo "WARNING: Possible binary-incompatible changes were found:"
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echo "========================================================="
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echo
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echo "$result"
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# this doesn't necessarly indicate that binary compatibility was surely
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# broken; e.g. adding non-virtual methods will generate a new line in the
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# $actual_abi_file but that's a compatible change.
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fi
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else
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echo "Usage: $0 [--generate]"
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echo "When running without options, compares the wxWidgets ABI saved in '$expected_abi_file'"
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echo "with the current ABI of the .so files of the working directory."
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echo "When --generate is given, saves in '$expected_abi_file' the ABI of the .so files"
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echo "(for later comparisons)."
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fi
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