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1 | #!/bin/bash | |
2 | ||
3 | # Script originally based on GTK+'s own abicheck.sh; it should be run anytime | |
4 | # there is a change in the stable branch of wxWidgets which could lead to an | |
5 | # ABI breakage and thus result in a binary-incompatible change (see tech docs). | |
6 | # | |
7 | ||
8 | ||
9 | expected_abi_file="expected_abi" | |
10 | actual_abi_file="actual_abi" | |
11 | ||
12 | if [[ "$1" == "--generate" ]]; then | |
13 | ||
14 | # IMPORTANT: we need a shared build of wxWidgets to proceed | |
15 | if [[ $(echo *.so) == "*.so" ]]; then | |
16 | echo "No shared objects (*.so) were found... aborting" | |
17 | exit 1 | |
18 | fi | |
19 | ||
20 | # generated the "expected ABI" for later comparison | |
21 | rm -f $expected_abi_file | |
22 | for library in *.so; do | |
23 | # NOTE: don't use -C option as otherwise cut won't work correctly | |
24 | nm -D -g --defined-only $library | cut -d ' ' -f 3 | sort >>$expected_abi_file | |
25 | done | |
26 | ||
27 | echo "Expected wxWidgets ABI generated in \"$expected_abi_file\"..." | |
28 | ||
29 | elif [[ -z "$1" ]]; then | |
30 | ||
31 | if [[ ! -f "$expected_abi_file" ]]; then | |
32 | echo "The file containing the expected wxWidgets ABI '$expected_abi_file' does not exist!" | |
33 | echo "Please generate it first using the '--generate' option" | |
34 | exit 1 | |
35 | fi | |
36 | ||
37 | echo "Comparing actual ABI with the expected ABI (loading it from \"$expected_abi_file\")..." | |
38 | ||
39 | # IMPORTANT: we need a shared build of wxWidgets to do the check | |
40 | if [[ $(echo *.so) == "*.so" ]]; then | |
41 | echo "No shared objects (*.so) were found... aborting" | |
42 | exit 1 | |
43 | fi | |
44 | ||
45 | rm -f $actual_abi_file | |
46 | for library in *.so; do | |
47 | # NOTE: don't use -C option as otherwise cut won't work correctly | |
48 | nm -D -g --defined-only $library | cut -d ' ' -f 3 | sort >>$actual_abi_file | |
49 | done | |
50 | ||
51 | result=`diff -u $expected_abi_file $actual_abi_file` | |
52 | ||
53 | if [[ -z "$result" ]]; then | |
54 | echo "No binary (in)compatible changes were found." | |
55 | else | |
56 | echo "=========================================================" | |
57 | echo "WARNING: Possible binary-incompatible changes were found:" | |
58 | echo "=========================================================" | |
59 | echo | |
60 | echo "$result" | |
61 | ||
62 | # this doesn't necessarly indicate that binary compatibility was surely | |
63 | # broken; e.g. adding non-virtual methods will generate a new line in the | |
64 | # $actual_abi_file but that's a compatible change. | |
65 | fi | |
66 | ||
67 | else | |
68 | ||
69 | echo "Usage: $0 [--generate]" | |
70 | echo "When running without options, compares the wxWidgets ABI saved in '$expected_abi_file'" | |
71 | echo "with the current ABI of the .so files of the working directory." | |
72 | echo "When --generate is given, saves in '$expected_abi_file' the ABI of the .so files" | |
73 | echo "(for later comparisons)." | |
74 | ||
75 | fi | |
76 |