1#! /bin/bash
2
3set_env()
4{
5  cd /home/worker
6  HGDIR=/home/worker
7  OUTPUTDIR=$(pwd)$(echo "/output")
8  DATE=$(date "+TB [%Y-%m-%d %H:%M:%S]")
9
10  if [ ! -d "${OUTPUTDIR}" ]; then
11    echo "Creating output dir"
12    mkdir "${OUTPUTDIR}"
13  fi
14
15  if [ ! -d "nspr" ]; then
16    for i in 0 2 5; do
17      sleep $i
18      hg clone -r "default" "https://hg.mozilla.org/projects/nspr" "${HGDIR}/nspr" && break
19      rm -rf nspr
20    done
21  fi
22
23  if [[ -f nss/nspr.patch && "$ALLOW_NSPR_PATCH" == "1" ]]; then
24    pushd nspr
25    cat ../nss/nspr.patch | patch -p1
26    popd
27  fi
28
29  cd nss
30  ./build.sh -v -c
31  cd ..
32}
33
34check_abi()
35{
36  set_env
37  set +e #reverses set -e from build.sh to allow possible hg clone failures
38  if [[ "$1" != --nobuild ]]; then # Start nobuild block
39
40    echo "######## NSS ABI CHECK ########"
41    echo "######## creating temporary HG clones ########"
42
43    rm -rf ${HGDIR}/baseline
44    mkdir ${HGDIR}/baseline
45    BASE_NSS=`cat ${HGDIR}/nss/automation/abi-check/previous-nss-release`  #Reads the version number of the last release from the respective file
46    NSS_CLONE_RESULT=0
47    for i in 0 2 5; do
48        sleep $i
49        hg clone -u "${BASE_NSS}" "https://hg.mozilla.org/projects/nss" "${HGDIR}/baseline/nss"
50        if [ $? -eq 0 ]; then
51          NSS_CLONE_RESULT=0
52          break
53        fi
54        rm -rf "${HGDIR}/baseline/nss"
55        NSS_CLONE_RESULT=1
56    done
57    if [ ${NSS_CLONE_RESULT} -ne 0 ]; then
58      echo "invalid tag in automation/abi-check/previous-nss-release"
59      return 1
60    fi
61
62    BASE_NSPR=NSPR_$(head -1 ${HGDIR}/baseline/nss/automation/release/nspr-version.txt | cut -d . -f 1-2 | tr . _)_BRANCH
63    hg clone -u "${BASE_NSPR}" "https://hg.mozilla.org/projects/nspr" "${HGDIR}/baseline/nspr"
64    NSPR_CLONE_RESULT=$?
65
66    if [ ${NSPR_CLONE_RESULT} -ne 0 ]; then
67      rm -rf "${HGDIR}/baseline/nspr"
68      for i in 0 2 5; do
69          sleep $i
70          hg clone -u "default" "https://hg.mozilla.org/projects/nspr" "${HGDIR}/baseline/nspr" && break
71          rm -rf "${HGDIR}/baseline/nspr"
72      done
73      echo "Nonexisting tag ${BASE_NSPR} derived from ${BASE_NSS} automation/release/nspr-version.txt"
74      echo "Using default branch instead."
75    fi
76
77    echo "######## building baseline NSPR/NSS ########"
78    echo "${HGDIR}/baseline/nss/build.sh"
79    cd ${HGDIR}/baseline/nss
80    ./build.sh -v -c
81    cd ${HGDIR}
82  else  # Else nobuild block
83    echo "######## using existing baseline NSPR/NSS build ########"
84  fi # End nobuild block
85
86  set +e #reverses set -e from build.sh to allow abidiff failures
87
88  echo "######## Starting abidiff procedure ########"
89  abi_diff
90}
91
92#Slightly modified from builbot-slave/build.sh
93abi_diff()
94{
95  ABI_PROBLEM_FOUND=0
96  ABI_REPORT=${OUTPUTDIR}/abi-diff.txt
97  rm -f ${ABI_REPORT}
98  PREVDIST=${HGDIR}/baseline/dist
99  NEWDIST=${HGDIR}/dist
100  # libnssdbm3.so isn't built by default anymore, skip it.
101  ALL_SOs="libfreebl3.so libfreeblpriv3.so libnspr4.so libnss3.so libnssckbi.so libnsssysinit.so libnssutil3.so libplc4.so libplds4.so libsmime3.so libsoftokn3.so libssl3.so"
102  for SO in ${ALL_SOs}; do
103      if [ ! -f ${HGDIR}/nss/automation/abi-check/expected-report-$SO.txt ]; then
104          touch ${HGDIR}/nss/automation/abi-check/expected-report-$SO.txt
105      fi
106      abidiff --hd1 $PREVDIST/public/ --hd2 $NEWDIST/public \
107          $PREVDIST/*/lib/$SO $NEWDIST/*/lib/$SO \
108          > ${HGDIR}/nss/automation/abi-check/new-report-temp$SO.txt
109      RET=$?
110      cat ${HGDIR}/nss/automation/abi-check/new-report-temp$SO.txt \
111          | grep -v "^Functions changes summary:" \
112          | grep -v "^Variables changes summary:" \
113          | sed -e 's/__anonymous_enum__[0-9]*/__anonymous_enum__/g' \
114          > ${HGDIR}/nss/automation/abi-check/new-report-$SO.txt
115      rm -f ${HGDIR}/nss/automation/abi-check/new-report-temp$SO.txt
116
117      ABIDIFF_ERROR=$((($RET & 0x01) != 0))
118      ABIDIFF_USAGE_ERROR=$((($RET & 0x02) != 0))
119      ABIDIFF_ABI_CHANGE=$((($RET & 0x04) != 0))
120      ABIDIFF_ABI_INCOMPATIBLE_CHANGE=$((($RET & 0x08) != 0))
121      ABIDIFF_UNKNOWN_BIT_SET=$((($RET & 0xf0) != 0))
122
123      # If abidiff reports an error, or a usage error, or if it sets a result
124      # bit value this script doesn't know yet about, we'll report failure.
125      # For ABI changes, we don't yet report an error. We'll compare the
126      # result report with our whitelist. This allows us to silence changes
127      # that we're already aware of and have been declared acceptable.
128
129      REPORT_RET_AS_FAILURE=0
130      if [ $ABIDIFF_ERROR -ne 0 ]; then
131          echo "abidiff reported ABIDIFF_ERROR."
132          REPORT_RET_AS_FAILURE=1
133      fi
134      if [ $ABIDIFF_USAGE_ERROR -ne 0 ]; then
135          echo "abidiff reported ABIDIFF_USAGE_ERROR."
136          REPORT_RET_AS_FAILURE=1
137      fi
138      if [ $ABIDIFF_UNKNOWN_BIT_SET -ne 0 ]; then
139          echo "abidiff reported ABIDIFF_UNKNOWN_BIT_SET."
140          REPORT_RET_AS_FAILURE=1
141      fi
142
143      if [ $ABIDIFF_ABI_CHANGE -ne 0 ]; then
144          echo "Ignoring abidiff result ABI_CHANGE, instead we'll check for non-whitelisted differences."
145      fi
146      if [ $ABIDIFF_ABI_INCOMPATIBLE_CHANGE -ne 0 ]; then
147          echo "Ignoring abidiff result ABIDIFF_ABI_INCOMPATIBLE_CHANGE, instead we'll check for non-whitelisted differences."
148      fi
149
150      if [ $REPORT_RET_AS_FAILURE -ne 0 ]; then
151          ABI_PROBLEM_FOUND=1
152          echo "abidiff {$PREVDIST , $NEWDIST} for $SO FAILED with result $RET, or failed writing to ${HGDIR}/nss/automation/abi-check/new-report-$SO.txt"
153      fi
154      if [ ! -f ${HGDIR}/nss/automation/abi-check/expected-report-$SO.txt ]; then
155          ABI_PROBLEM_FOUND=1
156          echo "FAILED to access report file: ${HGDIR}/nss/automation/abi-check/expected-report-$SO.txt"
157      fi
158
159      diff -wB -u ${HGDIR}/nss/automation/abi-check/expected-report-$SO.txt \
160              ${HGDIR}/nss/automation/abi-check/new-report-$SO.txt >> ${ABI_REPORT}
161      if [ ! -f ${ABI_REPORT} ]; then
162          ABI_PROBLEM_FOUND=1
163          echo "FAILED to compare exepcted and new report: ${HGDIR}/nss/automation/abi-check/new-report-$SO.txt"
164      fi
165  done
166
167  if [ -s ${ABI_REPORT} ]; then
168      echo "FAILED: there are new unexpected ABI changes"
169      cat ${ABI_REPORT}
170      return 1
171  elif [ $ABI_PROBLEM_FOUND -ne 0 ]; then
172      echo "FAILED: failure executing the ABI checks"
173      cat ${ABI_REPORT}
174      return 1
175  fi
176
177  return 0
178}
179
180check_abi $1
181