diff options
| -rw-r--r-- | Modules/Platform/AIX-GNU.cmake | 4 | ||||
| -rw-r--r-- | Modules/Platform/AIX-XL.cmake | 4 | ||||
| -rwxr-xr-x | Modules/Platform/AIX/ExportImportList | 46 |
3 files changed, 38 insertions, 16 deletions
diff --git a/Modules/Platform/AIX-GNU.cmake b/Modules/Platform/AIX-GNU.cmake index 5a532c7ccb..a9aa8e0220 100644 --- a/Modules/Platform/AIX-GNU.cmake +++ b/Modules/Platform/AIX-GNU.cmake @@ -23,11 +23,11 @@ macro(__aix_compiler_gnu lang) # Construct the export list ourselves to pass only the object files so # that we export only the symbols actually provided by the sources. set(CMAKE_${lang}_CREATE_SHARED_LIBRARY - "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <OBJECT_DIR>/exports.exp <AIX_EXPORTS> <OBJECTS>" + "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <OBJECT_DIR>/exports.exp -c <CMAKE_${lang}_COMPILER> <AIX_EXPORTS> <OBJECTS>" "<CMAKE_${lang}_COMPILER> <CMAKE_SHARED_LIBRARY_${lang}_FLAGS> -Wl,-bE:<OBJECT_DIR>/exports.exp <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" ) set(CMAKE_${lang}_LINK_EXECUTABLE_WITH_EXPORTS - "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <TARGET_IMPLIB> -l . <AIX_EXPORTS> <OBJECTS>" + "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <TARGET_IMPLIB> -c <CMAKE_${lang}_COMPILER> -l . <AIX_EXPORTS> <OBJECTS>" "<CMAKE_${lang}_COMPILER> <FLAGS> <CMAKE_${lang}_LINK_FLAGS> -Wl,-bE:<TARGET_IMPLIB> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>") endmacro() diff --git a/Modules/Platform/AIX-XL.cmake b/Modules/Platform/AIX-XL.cmake index 2a8c159afb..902cbb3aab 100644 --- a/Modules/Platform/AIX-XL.cmake +++ b/Modules/Platform/AIX-XL.cmake @@ -29,12 +29,12 @@ macro(__aix_compiler_xl lang) # Construct the export list ourselves to pass only the object files so # that we export only the symbols actually provided by the sources. set(CMAKE_${lang}_CREATE_SHARED_LIBRARY - "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <OBJECT_DIR>/exports.exp <AIX_EXPORTS>${_OBJECTS}" + "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <OBJECT_DIR>/exports.exp -c <CMAKE_${lang}_COMPILER> <AIX_EXPORTS>${_OBJECTS}" "<CMAKE_${lang}_COMPILER> <CMAKE_SHARED_LIBRARY_${lang}_FLAGS> -Wl,-bE:<OBJECT_DIR>/exports.exp <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" ) set(CMAKE_${lang}_LINK_EXECUTABLE_WITH_EXPORTS - "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <TARGET_IMPLIB> -l . <AIX_EXPORTS> <OBJECTS>" + "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <TARGET_IMPLIB> -c <CMAKE_${lang}_COMPILER> -l . <AIX_EXPORTS> <OBJECTS>" "<CMAKE_${lang}_COMPILER> <FLAGS> <CMAKE_${lang}_LINK_FLAGS> -Wl,-bE:<TARGET_IMPLIB> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>") unset(_OBJECTS) diff --git a/Modules/Platform/AIX/ExportImportList b/Modules/Platform/AIX/ExportImportList index 891bce76d9..5e16fcb4c6 100755 --- a/Modules/Platform/AIX/ExportImportList +++ b/Modules/Platform/AIX/ExportImportList @@ -5,7 +5,7 @@ # 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> [-l <lib>] [-n] [--] <objects>...' +usage='usage: ExportImportList -o <out-file> -c <compiler> [-l <lib>] [-n] [--] <objects>...' die() { echo "$@" 1>&2; exit 1 @@ -15,11 +15,13 @@ die() { out='' lib='' no_objects='' +compiler='' while test "$#" != 0; do case "$1" in -l) shift; lib="$1" ;; -o) shift; out="$1" ;; -n) no_objects='1' ;; + -c) shift; compiler="$1" ;; --) shift; break ;; -*) die "$usage" ;; *) break ;; @@ -27,27 +29,47 @@ while test "$#" != 0; do shift done test -n "$out" || die "$usage" +# We need the compiler executable to resolve where the ibm-llvm-nm executable is +test -n "$compiler" || die "$usage" # Build a temporary file that atomically replaces the output later. out_tmp="$out.tmp$$" trap 'rm -f "$out_tmp"' EXIT INT TERM > "$out_tmp" +# If IPA was enabled and a compiler from the IBMClang family is used, then +# the object files contain LLVM bitcode[0] rather than XCOFF objects and so +# need to be handled differently. +# +# [0]: https://www.ibm.com/docs/en/openxl-c-and-cpp-aix/17.1.0?topic=compatibility-link-time-optimization-lto +NM="$(dirname "$compiler")/../libexec/ibm-llvm-nm" + +function IsBitcode { + # N4 = first 4 bytes, -tx = output in hexadecimal, -An = don't display offset + # cut: trim off the preceding whitespace where the offset would be + # 4243code is the hexadecimal magic number for LLVM bitcode + [ "$(od -N4 -tx -An $1 | cut -d ' ' -f 2)" == "4243c0de" ]; +} + # Collect symbols exported from all object files. if test -z "$no_objects"; then 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)] + if IsBitcode "$f"; then + "$NM" "$f" --defined-only --extern-only --just-symbol-name 2>/dev/null + else + dump -tov -X 32_64 "$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)] + } } - } - ' + ' + fi done >> "$out_tmp" fi |