Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 89 insertions, 0 deletions

diff --git a/cmake/do_abi_check.cmake b/cmake/do_abi_check.cmake
new file mode 100644
index 00000000..02bf9fbe
--- /dev/null
+++ b/cmake/do_abi_check.cmake
@@ -0,0 +1,89 @@
+# Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1335  USA 
+
+#
+# Rules for checking that the abi/api has not changed.
+#
+# The following steps are followed in the do_abi_check rule below
+#
+# 1) Generate preprocessor output for the files that need to
+#    be tested for abi/api changes. use -nostdinc to prevent
+#    generation of preprocessor output for system headers. This
+#    results in messages in stderr saying that these headers
+#    were not found. Redirect the stderr output to /dev/null
+#    to prevent seeing these messages.
+# 2) sed the output to 
+#    2.1) remove blank lines and lines that begin with "# "
+#    2.2) When gcc -E is run on the Mac OS  and solaris sparc platforms it
+#         introduces a line of output that shows up as a difference between
+#         the .pp and .out files. Remove these OS specific preprocessor text
+#         inserted by the preprocessor.
+# 3) diff the generated file and the canons (.pp files already in
+#    the repository).
+# 4) delete the .out file that is generated.
+#
+# If the diff fails, the generated file is not removed. This will
+# be useful for analysis of ABI differences (e.g. using a visual
+# diff tool).
+#
+# A ABI change that causes a build to fail will always be accompanied
+# by new canons (.out files). The .out files that are not removed will
+# be replaced as the new .pp files.
+#
+# e.g. If include/mysql/plugin.h has an ABI change then this rule would
+# leave a <build directory>/abi_check.out file.
+#
+# A developer with a justified API change will then do a
+# mv <build directory>/abi_check.out include/mysql/plugin.pp 
+# to replace the old canons with the new ones.
+#
+
+SET(abi_check_out ${BINARY_DIR}/abi_check.out)
+
+FOREACH(file ${ABI_HEADERS})
+  GET_FILENAME_COMPONENT(header_basename ${file} NAME)
+  SET(tmpfile ${BINARY_DIR}/${header_basename}.pp.tmp)
+
+  EXECUTE_PROCESS(
+    COMMAND ${COMPILER} 
+      -E -nostdinc -DMYSQL_ABI_CHECK -D__cplusplus
+      -I${SOURCE_DIR}/include
+      -I${BINARY_DIR}/include -I${SOURCE_DIR}/include/mysql -I${SOURCE_DIR}/sql
+      ${file} 
+      ERROR_QUIET OUTPUT_FILE ${tmpfile})
+  EXECUTE_PROCESS(
+    COMMAND sed -e "/^# /d"
+                -e "/^[	]*$/d"
+                -e "/^#pragma GCC set_debug_pwd/d"
+                -e "/^#ident/d"
+    RESULT_VARIABLE result OUTPUT_FILE ${abi_check_out} INPUT_FILE ${tmpfile})
+  IF(NOT ${result} EQUAL 0)
+    MESSAGE(FATAL_ERROR "sed returned error ${result}")
+  ENDIF()
+  FILE(REMOVE ${tmpfile})
+  EXECUTE_PROCESS(
+    COMMAND diff -w ${file}.pp ${abi_check_out} RESULT_VARIABLE result)
+  IF(result MATCHES "No such file or directory")
+    MESSAGE("Command 'diff' not found. ABI check for ${file} skipped.")
+  ELSEIF(NOT result EQUAL 0)
+    IF(ABI_UPDATE)
+      EXECUTE_PROCESS(COMMAND mv -v ${abi_check_out} ${file}.pp)
+    ELSE(ABI_UPDATE)
+      MESSAGE(FATAL_ERROR 
+        "ABI check found difference between ${file}.pp and ${abi_check_out}")
+    ENDIF(ABI_UPDATE)
+  ENDIF()
+  FILE(REMOVE ${abi_check_out})
+ENDFOREACH()