summaryrefslogtreecommitdiff
path: root/tools/llvm-config
diff options
context:
space:
mode:
authorDaniel Dunbar <daniel@zuster.org>2011-11-10 18:49:59 +0000
committerDaniel Dunbar <daniel@zuster.org>2011-11-10 18:49:59 +0000
commita6f5a81285bab84212209d47b1238505512c7c87 (patch)
tree91c13e119cf881c3a6527e1a9e7f0b149128c699 /tools/llvm-config
parentf084e1dc42c5c0a69c29de68bf129c39ca5d3641 (diff)
llvm-config: Replace with C++ version (was llvm-config-2).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144300 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-config')
-rw-r--r--tools/llvm-config/BuildVariables.inc.in26
-rw-r--r--tools/llvm-config/CMakeLists.txt151
-rw-r--r--tools/llvm-config/Makefile92
-rwxr-xr-xtools/llvm-config/find-cycles.pl170
-rw-r--r--tools/llvm-config/llvm-config.cpp324
-rw-r--r--tools/llvm-config/llvm-config.in.in466
6 files changed, 405 insertions, 824 deletions
diff --git a/tools/llvm-config/BuildVariables.inc.in b/tools/llvm-config/BuildVariables.inc.in
new file mode 100644
index 00000000000..5969772c9dc
--- /dev/null
+++ b/tools/llvm-config/BuildVariables.inc.in
@@ -0,0 +1,26 @@
+//===-- BuildVariables.inc.in - llvm-config build variables -*- C++ -*-----===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is configured by the build system to define the variables
+// llvm-config wants to report to the user, but which can only be determined at
+// build time.
+//
+// The non .in variant of this file has been autogenerated by the LLVM build. Do
+// not edit!
+//
+//===----------------------------------------------------------------------===//
+
+#define LLVM_SRC_ROOT "@LLVM_SRC_ROOT@"
+#define LLVM_OBJ_ROOT "@LLVM_OBJ_ROOT@"
+#define LLVM_CPPFLAGS "@LLVM_CPPFLAGS@"
+#define LLVM_CFLAGS "@LLVM_CFLAGS@"
+#define LLVM_LDFLAGS "@LLVM_LDFLAGS@"
+#define LLVM_CXXFLAGS "@LLVM_CXXFLAGS@"
+#define LLVM_BUILDMODE "@LLVM_BUILDMODE@"
+#define LLVM_SYSTEM_LIBS "@LLVM_SYSTEM_LIBS@"
diff --git a/tools/llvm-config/CMakeLists.txt b/tools/llvm-config/CMakeLists.txt
index 53f00846b79..ed26ba95553 100644
--- a/tools/llvm-config/CMakeLists.txt
+++ b/tools/llvm-config/CMakeLists.txt
@@ -1,138 +1,41 @@
-include(TestBigEndian)
+set(LLVM_LINK_COMPONENTS support)
-include(FindPerl)
-if( NOT PERL_FOUND )
- message(FATAL_ERROR "Perl required but not found!")
-endif( NOT PERL_FOUND )
-
-set(PERL ${PERL_EXECUTABLE})
-set(VERSION PACKAGE_VERSION)
-set(PREFIX ${CMAKE_INSTALL_PREFIX})
-set(abs_top_srcdir ${LLVM_MAIN_SRC_DIR})
-set(abs_top_builddir ${LLVM_BINARY_DIR})
-execute_process(COMMAND date
- OUTPUT_VARIABLE LLVM_CONFIGTIME
- OUTPUT_STRIP_TRAILING_WHITESPACE)
-# LLVM_ON_UNIX and LLVM_ON_WIN32 already set.
-# those are set to blank by `autoconf' on MinGW, so it seems they are not required:
-#set(LLVMGCCDIR "")
-#set(LLVMGCC "")
-#set(LLVMGXX "")
-test_big_endian(IS_BIG_ENDIAN)
-if( IS_BIG_ENDIAN )
- set(ENDIAN "big")
-else( IS_BIG_ENDIAN )
- set(ENDIAN "little")
-endif( IS_BIG_ENDIAN )
-set(SHLIBEXT ${LTDL_SHLIB_EXT})
-#EXEEXT already set.
-set(OS "${CMAKE_SYSTEM}")
-set(target "${TARGET_TRIPLE}")
-set(ARCH "${LLVM_NATIVE_ARCH}")
+# We need to generate the BuildVariables.inc file containing values which are
+# only defined when under certain build modes. Unfortunately, that precludes
+# doing this inside CMake so we have to shell out to sed. For now, that means we
+# can't expect to build llvm-config on Window.s
+set(BUILDVARIABLES_SRCPATH ${CMAKE_CURRENT_SOURCE_DIR}/BuildVariables.inc.in)
+set(BUILDVARIABLES_OBJPATH ${CMAKE_CURRENT_BINARY_DIR}/BuildVariables.inc)
+set(SEDSCRIPT_OBJPATH ${CMAKE_CURRENT_BINARY_DIR}/BuildVariables.configure.sed)
+# Compute the substitution values for various items.
get_system_libs(LLVM_SYSTEM_LIBS_LIST)
foreach(l ${LLVM_SYSTEM_LIBS_LIST})
- set(LLVM_SYSTEM_LIBS ${LLVM_SYSTEM_LIBS} "-l${l}")
+ set(SYSTEM_LIBS ${SYSTEM_LIBS} "-l${l}")
endforeach()
-
-foreach(c ${LLVM_TARGETS_TO_BUILD})
- set(TARGETS_BUILT "${TARGETS_BUILT} ${c}")
-endforeach(c)
-set(TARGETS_TO_BUILD ${TARGETS_BUILT})
-set(TARGET_HAS_JIT "1") # TODO
-
-# Avoids replacement at config-time:
-set(LLVM_CPPFLAGS "@LLVM_CPPFLAGS@")
-set(LLVM_CFLAGS "@LLVM_CFLAGS@")
-set(LLVM_CXXFLAGS "@LLVM_CXXFLAGS@")
-set(LLVM_LDFLAGS "@LLVM_LDFLAGS@")
-set(LIBS "@LIBS@")
-set(LLVM_BUILDMODE "@LLVM_BUILDMODE@")
-set(LLVM_OBJ_SUFFIX "@LLVM_OBJ_SUFFIX@")
-
-configure_file(
- ${CMAKE_CURRENT_SOURCE_DIR}/llvm-config.in.in
- ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in
- @ONLY
-)
-
-set(LIBDEPS LibDeps.txt)
-set(LIBDEPS_TMP LibDeps.txt.tmp)
-set(FINAL_LIBDEPS FinalLibDeps.txt)
-set(LLVM_CONFIG ${LLVM_TOOLS_BINARY_DIR}/llvm-config)
-set(LLVM_CONFIG_IN ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in)
-
-if( CMAKE_CROSSCOMPILING )
- set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
-endif()
-
-find_program(NM_PATH nm PATH_SUFFIXES /bin)
-
-if( NOT NM_PATH )
- message(FATAL_ERROR "`nm' not found")
-endif()
-
-get_property(llvm_libs GLOBAL PROPERTY LLVM_LIBS)
-
-add_custom_command(OUTPUT ${LIBDEPS_TMP}
- COMMAND ${PERL_EXECUTABLE} ${LLVM_MAIN_SRC_DIR}/utils/GenLibDeps.pl -flat ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/${CMAKE_CFG_INTDIR} ${NM_PATH} > ${LIBDEPS_TMP}
- DEPENDS ${llvm_libs}
- COMMENT "Regenerating ${LIBDEPS_TMP}")
-
-add_custom_command(OUTPUT ${LIBDEPS}
- COMMAND ${CMAKE_COMMAND} -E copy_if_different ${LIBDEPS_TMP} ${LIBDEPS}
- DEPENDS ${LIBDEPS_TMP}
- COMMENT "Updating ${LIBDEPS} if necessary...")
-
-# This must stop the build if find-cycles.pl returns error:
-add_custom_command(OUTPUT ${FINAL_LIBDEPS}
- COMMAND ${CMAKE_COMMAND} -E remove -f ${FINAL_LIBDEPS} ${FINAL_LIBDEPS}.tmp
- COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/find-cycles.pl < ${LIBDEPS} > ${FINAL_LIBDEPS}.tmp
- COMMAND ${CMAKE_COMMAND} -E copy ${FINAL_LIBDEPS}.tmp ${FINAL_LIBDEPS}
- DEPENDS ${LIBDEPS}
- COMMENT "Checking for cyclic dependencies between LLVM libraries.")
-
set(C_FLGS "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
set(CXX_FLGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
set(CPP_FLGS "${CMAKE_CPP_FLAGS} ${CMAKE_CPP_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
-# We don't want certain flags on the output of
-# llvm-config --cflags --cxxflags
-macro(remove_option_from_llvm_config option)
- llvm_replace_compiler_option(C_FLGS "${option}" "")
- llvm_replace_compiler_option(CXX_FLGS "${option}" "")
- llvm_replace_compiler_option(CPP_FLGS "${option}" "")
-endmacro(remove_option_from_llvm_config)
-remove_option_from_llvm_config("-pedantic")
-remove_option_from_llvm_config("-Wall")
-remove_option_from_llvm_config("-W")
-
-add_custom_command(OUTPUT ${LLVM_CONFIG}
- COMMAND echo s!@LLVM_CPPFLAGS@!${CPP_FLGS}! > temp.sed
- COMMAND echo s!@LLVM_CFLAGS@!${C_FLGS}! >> temp.sed
- COMMAND echo s!@LLVM_CXXFLAGS@!${CXX_FLGS}! >> temp.sed
+add_custom_command(OUTPUT ${BUILDVARIABLES_OBJPATH}
+ COMMAND echo s!@LLVM_SRC_ROOT@!${LLVM_MAIN_SRC_DIR}! > ${SEDSCRIPT_OBJPATH}
+ COMMAND echo s!@LLVM_OBJ_ROOT@!${LLVM_BINARY_DIR}! >> ${SEDSCRIPT_OBJPATH}
+ COMMAND echo s!@LLVM_CPPFLAGS@!${CPP_FLGS}! >> ${SEDSCRIPT_OBJPATH}
+ COMMAND echo s!@LLVM_CFLAGS@!${C_FLGS}! >> ${SEDSCRIPT_OBJPATH}
+ COMMAND echo s!@LLVM_CXXFLAGS@!${CXX_FLGS}! >> ${SEDSCRIPT_OBJPATH}
# TODO: Use general flags for linking! not just for shared libs:
- COMMAND echo s!@LLVM_LDFLAGS@!${CMAKE_SHARED_LINKER_FLAGS}! >> temp.sed
- COMMAND echo s!@LIBS@!${LLVM_SYSTEM_LIBS}! >> temp.sed
- COMMAND echo s!@LLVM_BUILDMODE@!${CMAKE_BUILD_TYPE}! >> temp.sed
- COMMAND echo s!@LLVM_OBJ_SUFFIX@!! >> temp.sed
- COMMAND sed -f temp.sed < ${LLVM_CONFIG_IN} > ${LLVM_CONFIG}
- COMMAND ${CMAKE_COMMAND} -E remove -f temp.sed
- COMMAND cat ${FINAL_LIBDEPS} >> ${LLVM_CONFIG}
- COMMAND chmod +x ${LLVM_CONFIG}
+ COMMAND echo s!@LLVM_LDFLAGS@!${CMAKE_SHARED_LINKER_FLAGS}! >> ${SEDSCRIPT_OBJPATH}
+ COMMAND echo s!@LLVM_BUILDMODE@!${CMAKE_BUILD_TYPE}! >> ${SEDSCRIPT_OBJPATH}
+ COMMAND echo s!@LLVM_SYSTEM_LIBS@!${SYSTEM_LIBS}! >> ${SEDSCRIPT_OBJPATH}
+ COMMAND sed -f ${SEDSCRIPT_OBJPATH} < ${BUILDVARIABLES_SRCPATH} > ${BUILDVARIABLES_OBJPATH}
VERBATIM
- DEPENDS ${FINAL_LIBDEPS} ${LLVM_CONFIG_IN}
- COMMENT "Building llvm-config script."
+ COMMENT "Building BuildVariables.inc include."
)
-add_custom_target(llvm-config.target ALL
- DEPENDS ${LLVM_CONFIG})
-
-# Ensure we build llvm-config after we build all of the libraries so that we
-# have their full dependencies.
-add_dependencies(llvm-config.target ${llvm_libs})
+# Add the llvm-config tool.
+add_llvm_tool(llvm-config
+ llvm-config.cpp
+ )
-install(FILES ${LLVM_CONFIG}
- PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE
- WORLD_READ WORLD_EXECUTE
- DESTINATION bin)
+# Add the dependency on the generation step.
+add_file_dependencies(${CMAKE_CURRENT_SOURCE_DIR}/llvm-config.cpp ${BUILDVARIABLES_OBJPATH})
diff --git a/tools/llvm-config/Makefile b/tools/llvm-config/Makefile
index 184919ea971..a7a2a63f99b 100644
--- a/tools/llvm-config/Makefile
+++ b/tools/llvm-config/Makefile
@@ -1,5 +1,5 @@
-##===- tools/llvm-config/Makefile --------------------------*- Makefile -*-===##
-#
+##===- tools/llvm-config/Makefile---------------------------*- Makefile -*-===##
+#
# The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
@@ -7,57 +7,42 @@
#
##===----------------------------------------------------------------------===##
-LEVEL = ../..
+LEVEL := ../..
+TOOLNAME := llvm-config
+USEDLIBS := LLVMSupport.a
-EXTRA_DIST = LibDeps.txt FinalLibDeps.txt llvm-config.in.in find-cycles.pl
+# We generate sources in the build directory, make sure it is in the include
+# paths.
+INCLUDE_BUILD_DIR := 1
-include $(LEVEL)/Makefile.common
+# This tool has no plugins, optimize startup time.
+TOOL_NO_EXPORTS := 1
-# If we don't have Perl, we can't generate the library dependencies upon which
-# llvm-config depends. Therefore, only if we detect perl will we do anything
-# useful.
-ifeq ($(HAVE_PERL),1)
+# Note that we have to use lazy expansion here.
+BUILDVARIABLES_SRCPATH = $(PROJ_SRC_ROOT)/tools/$(TOOLNAME)/BuildVariables.inc.in
+BUILDVARIABLES_OBJPATH = $(ObjDir)/BuildVariables.inc
+BUILT_SOURCES = $(BUILDVARIABLES_OBJPATH)
+
+include $(LEVEL)/Makefile.common
# Combine preprocessor flags (except for -I) and CXX flags.
-SUB_CPPFLAGS = ${CPP.BaseFlags}
-SUB_CFLAGS = ${CPP.BaseFlags} ${C.Flags}
-SUB_CXXFLAGS = ${CPP.BaseFlags} ${CXX.Flags}
+SUB_CPPFLAGS := ${CPP.BaseFlags}
+SUB_CFLAGS := ${CPP.BaseFlags} ${C.Flags}
+SUB_CXXFLAGS := ${CPP.BaseFlags} ${CXX.Flags}
# This is blank for now. We need to be careful about adding stuff here:
# LDFLAGS tend not to be portable, and we don't currently require the
# user to use libtool when linking against LLVM.
-SUB_LDFLAGS =
-
-FinalLibDeps = $(PROJ_OBJ_DIR)/FinalLibDeps.txt
-LibDeps = $(PROJ_OBJ_DIR)/LibDeps.txt
-LibDepsTemp = $(PROJ_OBJ_DIR)/LibDeps.txt.tmp
-GenLibDeps = $(PROJ_SRC_ROOT)/utils/GenLibDeps.pl
-
-$(LibDepsTemp): $(GenLibDeps) $(LibDir) $(wildcard $(LibDir)/*.a $(LibDir)/*.o)
- $(Echo) "Regenerating LibDeps.txt.tmp"
- $(Verb) $(PERL) $(GenLibDeps) -flat $(LibDir) "$(NM_PATH)" > $(LibDepsTemp)
-
-$(LibDeps): $(LibDepsTemp)
- $(Verb) $(CMP) -s $@ $< || ( $(CP) $< $@ && \
- $(EchoCmd) Updated LibDeps.txt because dependencies changed )
-
-# Find all the cyclic dependencies between various LLVM libraries, so we
-# don't have to process them at runtime.
-$(FinalLibDeps): find-cycles.pl $(LibDeps)
- $(Echo) "Checking for cyclic dependencies between LLVM libraries."
- $(Verb) $(PERL) $< < $(LibDeps) > $@ || rm -f $@
+SUB_LDFLAGS :=
-# Rerun our configure substitutions as needed.
-ConfigInIn = $(PROJ_SRC_DIR)/llvm-config.in.in
-llvm-config.in: $(ConfigInIn) $(ConfigStatusScript)
- $(Verb) cd $(PROJ_OBJ_ROOT) ; \
- $(ConfigStatusScript) tools/llvm-config/llvm-config.in
-
-# Build our final script.
-$(ToolDir)/llvm-config: llvm-config.in $(FinalLibDeps)
- $(Echo) "Building llvm-config script."
- $(Verb) $(ECHO) 's/@LLVM_CPPFLAGS@/$(subst /,\/,$(SUB_CPPFLAGS))/' \
+$(ObjDir)/BuildVariables.inc: $(BUILDVARIABLES_SRCPATH) Makefile $(ObjDir)/.dir
+ $(Echo) "Building llvm-config BuildVariables.inc file."
+ $(Verb) $(ECHO) 's/@LLVM_SRC_ROOT@/$(subst /,\/,$(LLVM_SRC_ROOT))/' \
> temp.sed
+ $(Verb) $(ECHO) 's/@LLVM_OBJ_ROOT@/$(subst /,\/,$(LLVM_OBJ_ROOT))/' \
+ >> temp.sed
+ $(Verb) $(ECHO) 's/@LLVM_CPPFLAGS@/$(subst /,\/,$(SUB_CPPFLAGS))/' \
+ >> temp.sed
$(Verb) $(ECHO) 's/@LLVM_CFLAGS@/$(subst /,\/,$(SUB_CFLAGS))/' \
>> temp.sed
$(Verb) $(ECHO) 's/@LLVM_CXXFLAGS@/$(subst /,\/,$(SUB_CXXFLAGS))/' \
@@ -66,28 +51,7 @@ $(ToolDir)/llvm-config: llvm-config.in $(FinalLibDeps)
>> temp.sed
$(Verb) $(ECHO) 's/@LLVM_BUILDMODE@/$(subst /,\/,$(BuildMode))/' \
>> temp.sed
- $(Verb) $(ECHO) 's/@LLVM_OBJ_SUFFIX@/$(subst /,\/,/$(BuildMode))/' \
+ $(Verb) $(ECHO) 's/@LLVM_SYSTEM_LIBS@/$(subst /,\/,$(LIBS))/' \
>> temp.sed
$(Verb) $(SED) -f temp.sed < $< > $@
$(Verb) $(RM) temp.sed
- $(Verb) cat $(FinalLibDeps) >> $@
- $(Verb) chmod +x $@
-
-else
-# We don't have perl, just generate a dummy llvm-config
-$(ToolDir)/llvm-config:
- $(Echo) "Building place holder llvm-config script."
- $(Verb) $(ECHO) 'echo llvm-config: Perl not found so llvm-config could not be generated' >> $@
- $(Verb) chmod +x $@
-
-endif
-# Hook into the standard Makefile rules.
-all-local:: $(ToolDir)/llvm-config
-clean-local::
- $(Verb) $(RM) -f $(ToolDir)/llvm-config llvm-config.in $(FinalLibDeps) \
- $(LibDeps) GenLibDeps.out
-install-local:: all-local
- $(Echo) Installing llvm-config
- $(Verb) $(MKDIR) $(DESTDIR)$(PROJ_bindir)
- $(Verb) $(ScriptInstall) $(ToolDir)/llvm-config $(DESTDIR)$(PROJ_bindir)
-
diff --git a/tools/llvm-config/find-cycles.pl b/tools/llvm-config/find-cycles.pl
deleted file mode 100755
index 5cbf5b4b277..00000000000
--- a/tools/llvm-config/find-cycles.pl
+++ /dev/null
@@ -1,170 +0,0 @@
-#!/usr/bin/perl
-#
-# Program: find-cycles.pl
-#
-# Synopsis: Given a list of possibly cyclic dependencies, merge all the
-# cycles. This makes it possible to topologically sort the
-# dependencies between different parts of LLVM.
-#
-# Syntax: find-cycles.pl < LibDeps.txt > FinalLibDeps.txt
-#
-# Input: cycmem1: cycmem2 dep1 dep2
-# cycmem2: cycmem1 dep3 dep4
-# boring: dep4
-#
-# Output: cycmem1 cycmem2: dep1 dep2 dep3 dep4
-# boring: dep4
-#
-# This file was written by Eric Kidd, and is placed into the public domain.
-#
-
-use 5.006;
-use strict;
-use warnings;
-
-my %DEPS;
-my @CYCLES;
-sub find_all_cycles;
-
-# Read our dependency information.
-while (<>) {
- chomp;
- my ($module, $dependency_str) = /^\s*([^:]+):\s*(.*)\s*$/;
- die "Malformed data: $_" unless defined $dependency_str;
- my @dependencies = split(/ /, $dependency_str);
- $DEPS{$module} = \@dependencies;
-}
-
-# Partition our raw dependencies into sets of cyclically-connected nodes.
-find_all_cycles();
-
-# Print out the finished cycles, with their dependencies.
-my @output;
-my $cycles_found = 0;
-foreach my $cycle (@CYCLES) {
- my @modules = sort keys %{$cycle};
-
- # Merge the dependencies of all modules in this cycle.
- my %dependencies;
- foreach my $module (@modules) {
- @dependencies{@{$DEPS{$module}}} = 1;
- }
-
- # Prune the known cyclic dependencies.
- foreach my $module (@modules) {
- delete $dependencies{$module};
- }
-
- # Warn about possible linker problems.
- my @archives = grep(/\.a$/, @modules);
- if (@archives > 1) {
- $cycles_found = $cycles_found + 1;
- print STDERR "find-cycles.pl: Circular dependency between *.a files:\n";
- print STDERR "find-cycles.pl: ", join(' ', @archives), "\n";
- push @modules, @archives; # WORKAROUND: Duplicate *.a files. Ick.
- } elsif (@modules > 1) {
- $cycles_found = $cycles_found + 1;
- print STDERR "find-cycles.pl: Circular dependency between *.o files:\n";
- print STDERR "find-cycles.pl: ", join(' ', @modules), "\n";
- push @modules, @modules; # WORKAROUND: Duplicate *.o files. Ick.
- }
-
- # Add to our output. (@modules is already as sorted as we need it to be.)
- push @output, (join(' ', @modules) . ': ' .
- join(' ', sort keys %dependencies) . "\n");
-}
-print sort @output;
-
-exit $cycles_found;
-
-#==========================================================================
-# Depedency Cycle Support
-#==========================================================================
-# For now, we have cycles in our dependency graph. Ideally, each cycle
-# would be collapsed down to a single *.a file, saving us all this work.
-#
-# To understand this code, you'll need a working knowledge of Perl 5,
-# and possibly some quality time with 'man perlref'.
-
-my %SEEN;
-my %CYCLES;
-sub find_cycles ($@);
-sub found_cycles ($@);
-
-sub find_all_cycles {
- # Find all multi-item cycles.
- my @modules = sort keys %DEPS;
- foreach my $module (@modules) { find_cycles($module); }
-
- # Build fake one-item "cycles" for the remaining modules, so we can
- # treat them uniformly.
- foreach my $module (@modules) {
- unless (defined $CYCLES{$module}) {
- my %cycle = ($module, 1);
- $CYCLES{$module} = \%cycle;
- }
- }
-
- # Find all our unique cycles. We have to do this the hard way because
- # we apparently can't store hash references as hash keys without making
- # 'strict refs' sad.
- my %seen;
- foreach my $cycle (values %CYCLES) {
- unless ($seen{$cycle}) {
- $seen{$cycle} = 1;
- push @CYCLES, $cycle;
- }
- }
-}
-
-# Walk through our graph depth-first (keeping a trail in @path), and report
-# any cycles we find.
-sub find_cycles ($@) {
- my ($module, @path) = @_;
- if (str_in_list($module, @path)) {
- found_cycle($module, @path);
- } else {
- return if defined $SEEN{$module};
- $SEEN{$module} = 1;
- foreach my $dep (@{$DEPS{$module}}) {
- find_cycles($dep, @path, $module);
- }
- }
-}
-
-# Give a cycle, attempt to merge it with pre-existing cycle data.
-sub found_cycle ($@) {
- my ($module, @path) = @_;
-
- # Pop any modules which aren't part of our cycle.
- while ($path[0] ne $module) { shift @path; }
- #print join("->", @path, $module) . "\n";
-
- # Collect the modules in our cycle into a hash.
- my %cycle;
- foreach my $item (@path) {
- $cycle{$item} = 1;
- if (defined $CYCLES{$item}) {
- # Looks like we intersect with an existing cycle, so merge
- # all those in, too.
- foreach my $old_item (keys %{$CYCLES{$item}}) {
- $cycle{$old_item} = 1;
- }
- }
- }
-
- # Update our global cycle table.
- my $cycle_ref = \%cycle;
- foreach my $item (keys %cycle) {
- $CYCLES{$item} = $cycle_ref;
- }
- #print join(":", sort keys %cycle) . "\n";
-}
-
-sub str_in_list ($@) {
- my ($str, @list) = @_;
- foreach my $item (@list) {
- return 1 if ($item eq $str);
- }
- return 0;
-}
diff --git a/tools/llvm-config/llvm-config.cpp b/tools/llvm-config/llvm-config.cpp
new file mode 100644
index 00000000000..30ace56f4ca
--- /dev/null
+++ b/tools/llvm-config/llvm-config.cpp
@@ -0,0 +1,324 @@
+//===-- llvm-config.cpp - LLVM project configuration utility --------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This tool encapsulates information about an LLVM project configuration for
+// use by other project's build environments (to determine installed path,
+// available features, required libraries, etc.).
+//
+// Note that although this tool *may* be used by some parts of LLVM's build
+// itself (i.e., the Makefiles use it to compute required libraries when linking
+// tools), this tool is primarily designed to support external projects.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Config/config.h"
+#include "llvm/Config/llvm-config.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cstdlib>
+#include <set>
+#include <vector>
+
+using namespace llvm;
+
+// Include the build time variables we can report to the user. This is generated
+// at build time from the BuildVariables.inc.in file by the build system.
+#include "BuildVariables.inc"
+
+// Include the component table. This creates an array of struct
+// AvailableComponent entries, which record the component name, library name,
+// and required components for all of the available libraries.
+//
+// Not all components define a library, we also use "library groups" as a way to
+// create entries for pseudo groups like x86 or all-targets.
+#include "LibraryDependencies.inc"
+
+/// \brief Traverse a single component adding to the topological ordering in
+/// \arg RequiredLibs.
+///
+/// \param Name - The component to traverse.
+/// \param ComponentMap - A prebuilt map of component names to descriptors.
+/// \param VisitedComponents [in] [out] - The set of already visited components.
+/// \param RequiredLibs [out] - The ordered list of required libraries.
+static void VisitComponent(StringRef Name,
+ const StringMap<AvailableComponent*> &ComponentMap,
+ std::set<AvailableComponent*> &VisitedComponents,
+ std::vector<StringRef> &RequiredLibs) {
+ // Lookup the component.
+ AvailableComponent *AC = ComponentMap.lookup(Name);
+ assert(AC && "Invalid component name!");
+
+ // Add to the visited table.
+ if (!VisitedComponents.insert(AC).second) {
+ // We are done if the component has already been visited.
+ return;
+ }
+
+ // Otherwise, visit all the dependencies.
+ for (unsigned i = 0; AC->RequiredLibraries[i]; ++i) {
+ VisitComponent(AC->RequiredLibraries[i], ComponentMap, VisitedComponents,
+ RequiredLibs);
+ }
+
+ // Add to the required library list.
+ if (AC->Library)
+ RequiredLibs.push_back(AC->Library);
+}
+
+/// \brief Compute the list of required libraries for a given list of
+/// components, in an order suitable for passing to a linker (that is, libraries
+/// appear prior to their dependencies).
+///
+/// \param Components - The names of the components to find libraries for.
+/// \param RequiredLibs [out] - On return, the ordered list of libraries that
+/// are required to link the given components.
+void ComputeLibsForComponents(const std::vector<StringRef> &Components,
+ std::vector<StringRef> &RequiredLibs) {
+ std::set<AvailableComponent*> VisitedComponents;
+
+ // Build a map of component names to information.
+ StringMap<AvailableComponent*> ComponentMap;
+ for (unsigned i = 0; i != array_lengthof(AvailableComponents); ++i) {
+ AvailableComponent *AC = &AvailableComponents[i];
+ ComponentMap[AC->Name] = AC;
+ }
+
+ // Visit the components.
+ for (unsigned i = 0, e = Components.size(); i != e; ++i) {
+ // Users are allowed to provide mixed case component names.
+ std::string ComponentLower = Components[i].lower();
+
+ // Validate that the user supplied a valid component name.
+ if (!ComponentMap.count(ComponentLower)) {
+ llvm::errs() << "llvm-config: unknown component name: " << Components[i]
+ << "\n";
+ exit(1);
+ }
+
+ VisitComponent(ComponentLower, ComponentMap, VisitedComponents,
+ RequiredLibs);
+ }
+
+ // The list is now ordered with leafs first, we want the libraries to printed
+ // in the reverse order of dependency.
+ std::reverse(RequiredLibs.begin(), RequiredLibs.end());
+}
+
+/* *** */
+
+void usage() {
+ errs() << "\
+usage: llvm-config <OPTION>... [<COMPONENT>...]\n\
+\n\
+Get various configuration information needed to compile programs which use\n\
+LLVM. Typically called from 'configure' scripts. Examples:\n\
+ llvm-config --cxxflags\n\
+ llvm-config --ldflags\n\
+ llvm-config --libs engine bcreader scalaropts\n\
+\n\
+Options:\n\
+ --version Print LLVM version.\n\
+ --prefix Print the installation prefix.\n\
+ --src-root Print the source root LLVM was built from.\n\
+ --obj-root Print the object root used to build LLVM.\n\
+ --bindir Directory containing LLVM executables.\n\
+ --includedir Directory containing LLVM headers.\n\
+ --libdir Directory containing LLVM libraries.\n\
+ --cppflags C preprocessor flags for files that include LLVM headers.\n\
+ --cflags C compiler flags for files that include LLVM headers.\n\
+ --cxxflags C++ compiler flags for files that include LLVM headers.\n\
+ --ldflags Print Linker flags.\n\
+ --libs Libraries needed to link against LLVM components.\n\
+ --libnames Bare library names for in-tree builds.\n\
+ --libfiles Fully qualified library filenames for makefile depends.\n\
+ --components List of all possible components.\n\
+ --targets-built List of all targets currently built.\n\
+ --host-target Target triple used to configure LLVM.\n\
+ --build-mode Print build mode of LLVM tree (e.g. Debug or Release).\n\
+Typical components:\n\
+ all All LLVM libraries (default).\n\
+ backend Either a native backend or the C backend.\n\
+ engine Either a native JIT or a bitcode interpreter.\n";
+ exit(1);
+}
+
+/// \brief Compute the path to the main executable.
+llvm::sys::Path GetExecutablePath(const char *Argv0) {
+ // This just needs to be some symbol in the binary; C++ doesn't
+ // allow taking the address of ::main however.
+ void *P = (void*) (intptr_t) GetExecutablePath;
+ return llvm::sys::Path::GetMainExecutable(Argv0, P);
+}
+
+int main(int argc, char **argv) {
+ std::vector<StringRef> Components;
+ bool PrintLibs = false, PrintLibNames = false, PrintLibFiles = false;
+ bool HasAnyOption = false;
+
+ // llvm-config is designed to support being run both from a development tree
+ // and from an installed path. We try and auto-detect which case we are in so
+ // that we can report the correct information when run from a development
+ // tree.
+ bool IsInDevelopmentTree, DevelopmentTreeLayoutIsCMakeStyle;
+ llvm::SmallString<256> CurrentPath(GetExecutablePath(argv[0]).str());
+ std::string CurrentExecPrefix;
+
+ // Create an absolute path, and pop up one directory (we expect to be inside a
+ // bin dir).
+ sys::fs::make_absolute(CurrentPath);
+ CurrentExecPrefix = sys::path::parent_path(
+ sys::path::parent_path(CurrentPath)).str();
+
+ // Check to see if we are inside a development tree by comparing to possible
+ // locations (prefix style or CMake style). This could be wrong in the face of
+ // symbolic links, but is good enough.
+ if (CurrentExecPrefix == std::string(LLVM_OBJ_ROOT) + "/" + LLVM_BUILDMODE) {
+ IsInDevelopmentTree = true;
+ DevelopmentTreeLayoutIsCMakeStyle = false;
+ } else if (CurrentExecPrefix == std::string(LLVM_OBJ_ROOT) + "/bin") {
+ IsInDevelopmentTree = true;
+ DevelopmentTreeLayoutIsCMakeStyle = true;
+ } else {
+ IsInDevelopmentTree = false;
+ }
+
+ // Compute various directory locations based on the derived location
+ // information.
+ std::string ActivePrefix, ActiveBinDir, ActiveIncludeDir, ActiveLibDir;
+ std::string ActiveIncludeOption;
+ if (IsInDevelopmentTree) {
+ ActivePrefix = CurrentExecPrefix;
+
+ // CMake organizes the products differently than a normal prefix style
+ // layout.
+ if (DevelopmentTreeLayoutIsCMakeStyle) {
+ ActiveIncludeDir = std::string(LLVM_OBJ_ROOT) + "/include";
+ ActiveBinDir = std::string(LLVM_OBJ_ROOT) + "/bin/" + LLVM_BUILDMODE;
+ ActiveLibDir = std::string(LLVM_OBJ_ROOT) + "/lib/" + LLVM_BUILDMODE;
+ } else {
+ ActiveIncludeDir = std::string(LLVM_OBJ_ROOT) + "/include";
+ ActiveBinDir = std::string(LLVM_OBJ_ROOT) + "/" + LLVM_BUILDMODE + "/bin";
+ ActiveLibDir = std::string(LLVM_OBJ_ROOT) + "/" + LLVM_BUILDMODE + "/lib";
+ }
+
+ // We need to include files from both the source and object trees.
+ ActiveIncludeOption = ("-I" + ActiveIncludeDir + " " +
+ "-I" + LLVM_OBJ_ROOT + "/include");
+ } else {
+ ActivePrefix = CurrentExecPrefix;
+ ActiveIncludeDir = ActivePrefix + "/include";
+ ActiveBinDir = ActivePrefix + "/bin";
+ ActiveLibDir = ActivePrefix + "/lib";
+ ActiveIncludeOption = "-I" + ActiveIncludeDir;
+ }
+
+ raw_ostream &OS = outs();
+ for (int i = 1; i != argc; ++i) {
+ StringRef Arg = argv[i];
+
+ if (Arg.startswith("-")) {
+ HasAnyOption = true;
+ if (Arg == "--version") {
+ OS << PACKAGE_VERSION << '\n';
+ } else if (Arg == "--prefix") {
+ OS << ActivePrefix << '\n';
+ } else if (Arg == "--bindir") {
+ OS << ActiveBinDir << '\n';
+ } else if (Arg == "--includedir") {
+ OS << ActiveIncludeDir << '\n';
+ } else if (Arg == "--libdir") {
+ OS << ActiveLibDir << '\n';
+ } else if (Arg == "--cppflags") {
+ OS << ActiveIncludeOption << ' ' << LLVM_CPPFLAGS << '\n';
+ } else if (Arg == "--cflags") {
+ OS << ActiveIncludeOption << ' ' << LLVM_CFLAGS << '\n';
+ } else if (Arg == "--cxxflags") {
+ OS << ActiveIncludeOption << ' ' << LLVM_CXXFLAGS << '\n';
+ } else if (Arg == "--ldflags") {
+ OS << "-L" << ActiveLibDir << ' ' << LLVM_LDFLAGS
+ << ' ' << LLVM_SYSTEM_LIBS << '\n';
+ } else if (Arg == "--libs") {
+ PrintLibs = true;
+ } else if (Arg == "--libnames") {
+ PrintLibNames = true;
+ } else if (Arg == "--libfiles") {
+ PrintLibFiles = true;
+ } else if (Arg == "--components") {
+ for (unsigned j = 0; j != array_lengthof(AvailableComponents); ++j) {
+ OS << ' ';
+ OS << AvailableComponents[j].Name;
+ }
+ OS << '\n';
+ } else if (Arg == "--targets-built") {
+ bool First = true;
+ for (TargetRegistry::iterator I = TargetRegistry::begin(),
+ E = TargetRegistry::end(); I != E; First = false, ++I) {
+ if (!First)
+ OS << ' ';
+ OS << I->getName();
+ }
+ OS << '\n';
+ } else if (Arg == "--host-target") {
+ OS << LLVM_DEFAULT_TARGET_TRIPLE << '\n';
+ } else if (Arg == "--build-mode") {
+ OS << LLVM_BUILDMODE << '\n';
+ } else if (Arg == "--obj-root") {
+ OS << LLVM_OBJ_ROOT << '\n';
+ } else if (Arg == "--src-root") {
+ OS << LLVM_SRC_ROOT << '\n';
+ } else {
+ usage();
+ }
+ } else {
+ Components.push_back(Arg);
+ }
+ }
+
+ if (!HasAnyOption)
+ usage();
+
+ if (PrintLibs || PrintLibNames || PrintLibFiles) {
+ // Construct the list of all the required libraries.
+ std::vector<StringRef> RequiredLibs;
+ ComputeLibsForComponents(Components, RequiredLibs);
+
+ for (unsigned i = 0, e = RequiredLibs.size(); i != e; ++i) {
+ StringRef Lib = RequiredLibs[i];
+ if (i)
+ OS << ' ';
+
+ if (PrintLibNames) {
+ OS << Lib;
+ } else if (PrintLibFiles) {
+ OS << ActiveLibDir << '/' << Lib;
+ } else if (PrintLibs) {
+ // If this is a typical library name, include it using -l.
+ if (Lib.startswith("lib") && Lib.endswith(".a")) {
+ OS << "-l" << Lib.slice(3, Lib.size()-2);
+ continue;
+ }
+
+ // Otherwise, print the full path.
+ OS << ActiveLibDir << '/' << Lib;
+ }
+ }
+ OS << '\n';
+ } else if (!Components.empty()) {
+ errs() << "llvm-config: error: components given, but unused\n\n";
+ usage();
+ }
+
+ return 0;
+}
diff --git a/tools/llvm-config/llvm-config.in.in b/tools/llvm-config/llvm-config.in.in
deleted file mode 100644
index d811e59abb5..00000000000
--- a/tools/llvm-config/llvm-config.in.in
+++ /dev/null
@@ -1,466 +0,0 @@
-#!@PERL@
-##===- tools/llvm-config ---------------------------------------*- perl -*-===##
-#
-# The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open Source
-# License. See LICENSE.TXT for details.
-#
-##===----------------------------------------------------------------------===##
-#
-# Synopsis: Prints out compiler options needed to build against an installed
-# copy of LLVM.
-#
-# Syntax: llvm-config OPTIONS... [COMPONENTS...]
-#
-##===----------------------------------------------------------------------===##
-
-use 5.006;
-use strict;
-use warnings;
-use Cwd 'abs_path';
-
-#---- begin autoconf values ----
-my $PACKAGE_NAME = q{@PACKAGE_NAME@};
-my $VERSION = q{@PACKAGE_VERSION@};
-my $PREFIX = q{@LLVM_PREFIX@};
-my $LLVM_CONFIGTIME = q{@LLVM_CONFIGTIME@};
-my $LLVM_SRC_ROOT = q{@abs_top_srcdir@};
-my $LLVM_OBJ_ROOT = q{@abs_top_builddir@};
-my $ARCH = lc(q{@ARCH@});
-my $TARGET_TRIPLE = q{@target@};
-my $TARGETS_TO_BUILD = q{@TARGETS_TO_BUILD@};
-my $TARGET_HAS_JIT = q{@TARGET_HAS_JIT@};
-my @TARGETS_BUILT = map { lc($_) } qw{@TARGETS_TO_BUILD@};
-#---- end autoconf values ----
-
-# Must pretend x86_64 architecture is really x86, otherwise the native backend
-# won't get linked in.
-$ARCH = "x86" if $ARCH eq "x86_64";
-
-#---- begin Makefile values ----
-my $CPPFLAGS = q{@LLVM_CPPFLAGS@};
-my $CFLAGS = q{@LLVM_CFLAGS@};
-my $CXXFLAGS = q{@LLVM_CXXFLAGS@};
-my $LDFLAGS = q{@LLVM_LDFLAGS@};
-my $SYSTEM_LIBS = q{@LIBS@};
-my $LLVM_BUILDMODE = q{@LLVM_BUILDMODE@};
-my $LLVM_OBJ_SUFFIX = q{@LLVM_OBJ_SUFFIX@};
-#---- end Makefile values ----
-
-# Figure out where llvm-config is being run from. Primarily, we care if it has
-# been installed, or is running from the build directory, which changes the
-# locations of some files.
-
-# Convert the current executable name into its directory (e.g. ".").
-my ($RUN_DIR) = ($0 =~ /^(.*)\/.*$/);
-
-# Turn the directory into an absolute directory on the file system, also pop up
-# from "bin" into the build or prefix dir.
-my $ABS_RUN_DIR = abs_path("$RUN_DIR/..");
-chomp($ABS_RUN_DIR);
-
-# Compute the absolute object directory build, e.g. "foo/llvm/Debug".
-my $ABS_OBJ_ROOT = "$LLVM_OBJ_ROOT$LLVM_OBJ_SUFFIX";
-$ABS_OBJ_ROOT = abs_path("$ABS_OBJ_ROOT") if (-d $ABS_OBJ_ROOT);
-chomp($ABS_OBJ_ROOT);
-
-my $INCLUDEDIR = "$ABS_RUN_DIR/include";
-my $INCLUDEOPTION = "-I$INCLUDEDIR";
-my $LIBDIR = "$ABS_RUN_DIR/lib";
-my $BINDIR = "$ABS_RUN_DIR/bin";
-if ($ABS_RUN_DIR eq $ABS_OBJ_ROOT) {
- # If we are running out of the build directory, the include dir is in the
- # srcdir.
- $INCLUDEDIR = "$LLVM_SRC_ROOT/include";
- # We need include files from both the srcdir and objdir.
- $INCLUDEOPTION = "-I$INCLUDEDIR -I$LLVM_OBJ_ROOT/include"
-} else {
- # If installed, ignore the prefix the tree was configured with, use the
- # current prefix.
- $PREFIX = $ABS_RUN_DIR;
-}
-
-sub usage;
-sub fix_library_names (@);
-sub fix_library_files (@);
-sub expand_dependencies (@);
-sub name_map_entries;
-
-# Parse our command-line arguments.
-usage if @ARGV == 0;
-my @components;
-my $has_opt = 0;
-my $want_libs = 0;
-my $want_libnames = 0;
-my $want_libfiles = 0;
-my $want_components = 0;
-foreach my $arg (@ARGV) {
- if ($arg =~ /^-/) {
- if ($arg eq "--version") {
- $has_opt = 1; print "$VERSION\n";
- } elsif ($arg eq "--prefix") {
- $has_opt = 1; print "$PREFIX\n";
- } elsif ($arg eq "--bindir") {
- $has_opt = 1; print "$BINDIR\n";
- } elsif ($arg eq "--includedir") {
- $has_opt = 1; print "$INCLUDEDIR\n";
- } elsif ($arg eq "--libdir") {
- $has_opt = 1; print "$LIBDIR\n";
- } elsif ($arg eq "--cppflags") {
- $has_opt = 1; print "$INCLUDEOPTION $CPPFLAGS\n";
- } elsif ($arg eq "--cflags") {
- $has_opt = 1; print "$INCLUDEOPTION $CFLAGS\n";
- } elsif ($arg eq "--cxxflags") {
- $has_opt = 1; print "$INCLUDEOPTION $CXXFLAGS\n";
- } elsif ($arg eq "--ldflags") {
- $has_opt = 1; print "-L$LIBDIR $LDFLAGS $SYSTEM_LIBS\n";
- } elsif ($arg eq "--libs") {
- $has_opt = 1; $want_libs = 1;
- } elsif ($arg eq "--libnames") {
- $has_opt = 1; $want_libnames = 1;
- } elsif ($arg eq "--libfiles") {
- $has_opt = 1; $want_libfiles = 1;
- } elsif ($arg eq "--components") {
- $has_opt = 1; print join(' ', name_map_entries), "\n";
- } elsif ($arg eq "--targets-built") {
- $has_opt = 1; print join(' ', @TARGETS_BUILT), "\n";
- } elsif ($arg eq "--host-target") {
- $has_opt = 1; print "$TARGET_TRIPLE\n";
- } elsif ($arg eq "--build-mode") {
- $has_opt = 1; print "$LLVM_BUILDMODE\n";
- } elsif ($arg eq "--obj-root") {
- $has_opt = 1; print abs_path("$LLVM_OBJ_ROOT/");
- } elsif ($arg eq "--src-root") {
- $has_opt = 1; print abs_path("$LLVM_SRC_ROOT/");
- } else {
- usage();
- }
- } else {
- push @components, $arg;
- }
-}
-
-# If no options were specified, fail.
-usage unless $has_opt;
-
-# If no components were specified, default to 'all'.
-if (@components == 0) {
- push @components, 'all';
-}
-
-# Force component names to lower case.
-@components = map lc, @components;
-
-# Handle any arguments which require building our dependency graph.
-if ($want_libs || $want_libnames || $want_libfiles) {
- my @libs = expand_dependencies(@components);
- print join(' ', fix_library_names(@libs)), "\n" if ($want_libs);
- print join(' ', @libs), "\n" if ($want_libnames);
- print join(' ', fix_library_files(@libs)), "\n" if ($want_libfiles);
-}
-
-exit 0;
-
-#==========================================================================
-# Support Routines
-#==========================================================================
-
-sub usage {
- print STDERR <<__EOD__;
-Usage: llvm-config <OPTION>... [<COMPONENT>...]
-
-Get various configuration information needed to compile programs which use
-LLVM. Typically called from 'configure' scripts. Examples:
- llvm-config --cxxflags
- llvm-config --ldflags
- llvm-config --libs engine bcreader scalaropts
-
-Options:
- --version Print LLVM version.
- --prefix Print the installation prefix.
- --src-root Print the source root LLVM was built from.
- --obj-root Print the object root used to build LLVM.
- --bindir Directory containing LLVM executables.
- --includedir Directory containing LLVM headers.
- --libdir Directory containing LLVM libraries.
- --cppflags C preprocessor flags for files that include LLVM headers.
- --cflags C compiler flags for files that include LLVM headers.
- --cxxflags C++ compiler flags for files that include LLVM headers.
- --ldflags Print Linker flags.
- --libs Libraries needed to link against LLVM components.
- --libnames Bare library names for in-tree builds.
- --libfiles Fully qualified library filenames for makefile depends.
- --components List of all possible components.
- --targets-built List of all targets currently built.
- --host-target Target triple used to configure LLVM.
- --build-mode Print build mode of LLVM tree (e.g. Debug or Release).
-Typical components:
- all All LLVM libraries (default).
- engine Either a native JIT or a bitcode interpreter.
-__EOD__
- exit(1);
-}
-
-# Use -lfoo instead of libfoo.a whenever possible, and add directories to
-# files which can't be found using -L.
-sub fix_library_names (@) {
- my @libs = @_;
- my @result;
- foreach my $lib (@libs) {
- # Transform the bare library name appropriately.
- my ($basename) = ($lib =~ /^lib([^.]*)\.a/);
- if (defined $basename) {
- push @result, "-l$basename";
- } else {
- push @result, "$LIBDIR/$lib";
- }
- }
- return @result;
-}
-
-# Turn the list of libraries into a list of files.
-sub fix_library_files(@) {
- my @libs = @_;
- my @result;
- foreach my $lib (@libs) {
- # Transform the bare library name into a filename.
- push @result, "$LIBDIR/$lib";
- }
- return @result;
-}
-
-#==========================================================================
-# Library Dependency Analysis
-#==========================================================================
-# Given a few human-readable library names, find all their dependencies
-# and sort them into an order which the linker will like. If we packed
-# our libraries into fewer archives, we could make the linker do much
-# of this work for us.
-#
-# Libraries have two different types of names in this code: Human-friendly
-# "component" names entered on the command-line, and the raw file names
-# we use internally (and ultimately pass to the linker).
-#
-# To understand this code, you'll need a working knowledge of Perl 5,
-# and possibly some quality time with 'man perlref'.
-
-sub load_dependencies;
-sub build_name_map;
-sub have_native_backend;
-sub find_best_engine;
-sub expand_names (@);
-sub find_all_required_sets (@);
-sub find_all_required_sets_helper ($$@);
-
-# Each "set" contains one or more libraries which must be included as a
-# group (due to cyclic dependencies). Sets are represented as a Perl array
-# reference pointing to a list of internal library names.
-my @SETS;
-
-# Various mapping tables.
-my %LIB_TO_SET_MAP; # Maps internal library names to their sets.
-my %SET_DEPS; # Maps sets to a list of libraries they depend on.
-my %NAME_MAP; # Maps human-entered names to internal names.
-
-# Have our dependencies been loaded yet?
-my $DEPENDENCIES_LOADED = 0;
-
-# Given a list of human-friendly component names, translate them into a
-# complete set of linker arguments.
-sub expand_dependencies (@) {
- my @libs = @_;
- load_dependencies;
- my @required_sets = find_all_required_sets(expand_names(@libs));
- my @sorted_sets = topologically_sort_sets(@required_sets);
-
- # Expand the library sets into libraries.
- my @result;
- foreach my $set (@sorted_sets) { push @result, @{$set}; }
- return @result;
-}
-
-# Load in the raw dependency data stored at the end of this file.
-sub load_dependencies {
- return if $DEPENDENCIES_LOADED;
- $DEPENDENCIES_LOADED = 1;
- while (<DATA>) {
- # Parse our line.
- my ($libs, $deps) = /^\s*([^:]+):\s*(.*)\s*$/;
- die "Malformed dependency data" unless defined $deps;
- my @libs = split(' ', $libs);
- my @deps = split(' ', $deps);
-
- # Record our dependency data.
- my $set = \@libs;
- push @SETS, $set;
- foreach my $lib (@libs) { $LIB_TO_SET_MAP{$lib} = $set; }
- $SET_DEPS{$set} = \@deps;
- }
- build_name_map;
-}
-
-# Build a map converting human-friendly component names into internal
-# library names.
-sub build_name_map {
- # Add entries for all the actual libraries.
- foreach my $set (@SETS) {
- foreach my $lib (sort @$set) {
- my $short_name = $lib;
- $short_name =~ s/^(lib)?LLVM([^.]*)\..*$/$2/;
- $short_name =~ tr/A-Z/a-z/;
- $NAME_MAP{$short_name} = [$lib];
- }
- }
-
- # Add target-specific entries
- my @all_targets;
- foreach my $target (@TARGETS_BUILT) {
- # FIXME: Temporary, until we don't switch all targets
- if (defined $NAME_MAP{$target.'asmprinter'}) {
- $NAME_MAP{$target} = [$target.'info',
- $target.'asmprinter',
- $target.'codegen']
- } elsif (defined $NAME_MAP{$target.'codegen'}) {
- $NAME_MAP{$target} = [$target.'info',
- $target.'codegen']
- } else {
- $NAME_MAP{$target} = [$target.'info',
- $NAME_MAP{$target}[0]]
- }
-
- if (defined $NAME_MAP{$target.'asmparser'}) {
- push @{$NAME_MAP{$target}},$target.'asmparser'
- }
-
- if (defined $NAME_MAP{$target.'disassembler'}) {
- push @{$NAME_MAP{$target}},$target.'disassembler'
- }
-
- push @all_targets, $target;
- }
-
- # Add virtual entries.
- $NAME_MAP{'native'} = have_native_backend() ? [$ARCH] : [];
- $NAME_MAP{'nativecodegen'} = have_native_backend() ? [$ARCH.'codegen'] : [];
- $NAME_MAP{'engine'} = find_best_engine;
- $NAME_MAP{'all-targets'} = \@all_targets;
- $NAME_MAP{'all'} = [name_map_entries]; # Must be last.
-}
-
-# Return true if we have a native backend to use.
-sub have_native_backend {
- my %BUILT;
- foreach my $target (@TARGETS_BUILT) { $BUILT{$target} = 1; }
- return defined $NAME_MAP{$ARCH} && defined $BUILT{$ARCH};
-}
-
-# Find a working subclass of ExecutionEngine for this platform.
-sub find_best_engine {
- if (have_native_backend && $TARGET_HAS_JIT) {
- return ['jit', 'native'];
- } else {
- return ['interpreter'];
- }
-}
-
-# Get all the human-friendly component names.
-sub name_map_entries {
- load_dependencies;
- return sort keys %NAME_MAP;
-}
-
-# Map human-readable names to internal library names.
-sub expand_names (@) {
- my @names = @_;
- my @result;
- foreach my $name (@names) {
- if (defined $LIB_TO_SET_MAP{$name}) {
- # We've hit bottom: An actual library name.
- push @result, $name;
- } elsif (defined $NAME_MAP{$name}) {
- # We've found a short name to expand.
- push @result, expand_names(@{$NAME_MAP{$name}});
- } else {
- print STDERR "llvm-config: unknown component name: $name\n";
- exit(1);
- }
- }
- return @result;
-}
-
-# Given a list of internal library names, return all sets of libraries which
-# will need to be included by the linker (in no particular order).
-sub find_all_required_sets (@) {
- my @libs = @_;
- my %sets_added;
- my @result;
- find_all_required_sets_helper(\%sets_added, \@result, @libs);
- return @result;
-}
-
-# Recursive closures are pretty broken in Perl, so we're going to separate
-# this function from find_all_required_sets and pass in the state we need
-# manually, as references. Yes, this is fairly unpleasant.
-sub find_all_required_sets_helper ($$@) {
- my ($sets_added, $result, @libs) = @_;
- foreach my $lib (@libs) {
- my $set = $LIB_TO_SET_MAP{$lib};
- next if defined $$sets_added{$set};
- $$sets_added{$set} = 1;
- push @$result, $set;
- find_all_required_sets_helper($sets_added, $result, @{$SET_DEPS{$set}});
- }
-}
-
-# Print a list of sets, with a label. Used for debugging.
-sub print_sets ($@) {
- my ($label, @sets) = @_;
- my @output;
- foreach my $set (@sets) { push @output, join(',', @$set); }
- print "$label: ", join(';', @output), "\n";
-}
-
-# Returns true if $lib is a key in $added.
-sub has_lib_been_added ($$) {
- my ($added, $lib) = @_;
- return defined $$added{$LIB_TO_SET_MAP{$lib}};
-}
-
-# Returns true if all the dependencies of $set appear in $added.
-sub have_all_deps_been_added ($$) {
- my ($added, $set) = @_;
- #print_sets(" Checking", $set);
- #print_sets(" Wants", $SET_DEPS{$set});
- foreach my $lib (@{$SET_DEPS{$set}}) {
- return 0 unless has_lib_been_added($added, $lib);
- }
- return 1;
-}
-
-# Given a list of sets, topologically sort them using dependencies.
-sub topologically_sort_sets (@) {
- my @sets = @_;
- my %added;
- my @result;
- SCAN: while (@sets) { # We'll delete items from @sets as we go.
- #print_sets("So far", reverse(@result));
- #print_sets("Remaining", @sets);
- for (my $i = 0; $i < @sets; ++$i) {
- my $set = $sets[$i];
- if (have_all_deps_been_added(\%added, $set)) {
- push @result, $set;
- $added{$set} = 1;
- #print "Removing $i.\n";
- splice(@sets, $i, 1);
- next SCAN; # Restart our scan.
- }
- }
- die "Can't find a library with no dependencies";
- }
- return reverse(@result);
-}
-
-# Our library dependency data will be added after the '__END__' token, and will
-# be read through the magic <DATA> filehandle.
-__END__