Merge topic 'aix-explicit-exports'

c2c3d22504 Tests: Drop RunCMake workaround for AIX ld warnings about GNU atexit
9f5c2040bf AIX: Explicitly compute executable exports for both XL and GNU
0f150b69d3 AIX: Explicitly compute shared object exports for both XL and GNU
a5bf4e7921 AIX: Drop redundant -brtl flags
9cb5f040d7 XL: De-duplicate shared object creation flags

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3556

1 files changed, 48 insertions, 0 deletions

diff --git a/Modules/Platform/AIX/ExportImportList b/Modules/Platform/AIX/ExportImportList
new file mode 100755
index 0000000..c17378c
--- /dev/null
+++ b/Modules/Platform/AIX/ExportImportList
@@ -0,0 +1,48 @@
+#!/bin/sh
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+# This script is internal to CMake and meant only to be
+# invoked by CMake-generated build systems on AIX.
+
+usage='usage: ExportImportList -o <out-file> [--] <objects>...'
+
+die() {
+    echo "$@" 1>&2; exit 1
+}
+
+# Process command-line arguments.
+out=''
+while test "$#" != 0; do
+    case "$1" in
+    -o) shift; out="$1" ;;
+    --) shift; break ;;
+    -*) die "$usage" ;;
+    *)  break ;;
+    esac
+    shift
+done
+test -n "$out" || die "$usage"
+
+# Collect symbols exported from all object files.
+out_tmp="$out.tmp$$"
+trap 'rm -f "$out_tmp"' EXIT INT TERM
+for f in "$@"; do
+    dump -tov -X 32_64 "$f" |
+    awk '
+        BEGIN {
+            V["EXPORTED"]=" export"
+            V["PROTECTED"]=" protected"
+        }
+        /^\[[0-9]+\]\tm +[^ ]+ +\.(text|data|bss) +[^ ]+ +(extern|weak) +(EXPORTED|PROTECTED| ) / {
+            if (!match($NF,/^(\.|__sinit|__sterm|__[0-9]+__)/)) {
+                print $NF V[$(NF-1)]
+            }
+        }
+    '
+done > "$out_tmp"
+
+# Generate the export/import file.
+{
+    sort -u "$out_tmp"
+} > "$out"