mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-12 13:30:51 +00:00
Remove llvm-ld and llvm-stub (which is only used by llvm-ld).
llvm-ld is no longer useful and causes confusion and so it is being removed.
* Does not work very well on Windows because it must call a gcc like driver to
assemble and link.
* Has lots of hard coded paths which are wrong on many systems.
* Does not understand most of ld's options.
* Can be partially replaced by llvm-link | opt | {llc | as, llc -filetype=obj} |
ld, or fully replaced by Clang.
I know of no production use of llvm-ld, and hacking use should be
replaced by Clang's driver.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155147 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer
parent
b423d18a00
commit
75338097c7
@ -537,9 +537,6 @@ ifeq ($(LLVM_CROSS_COMPILING),1)
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else
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LLVM_CONFIG := $(LLVMToolDir)/llvm-config$(EXEEXT)
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endif
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ifndef LLVMLD
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LLVMLD := $(LLVMToolDir)/llvm-ld$(EXEEXT)
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endif
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ifndef LLVMDIS
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LLVMDIS := $(LLVMToolDir)/llvm-dis$(EXEEXT)
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endif
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@ -44,9 +44,9 @@ file, it will identify the optimization (or combination of optimizations) that
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causes the crash, and reduce the file down to a small example which triggers the
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crash.</p>
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<p>For detailed case scenarios, such as debugging <tt>opt</tt>,
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<tt>llvm-ld</tt>, or one of the LLVM code generators, see <a
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href="HowToSubmitABug.html">How To Submit a Bug Report document</a>.</p>
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<p>For detailed case scenarios, such as debugging <tt>opt</tt>, or one of the
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LLVM code generators, see <a href="HowToSubmitABug.html">How To Submit a Bug
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Report document</a>.</p>
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</div>
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@ -63,9 +63,6 @@ options) arguments to the tool you are interested in.</p>
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<li><a href="/cmds/llvm-prof.html"><b>llvm-prof</b></a> -
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format raw `<tt>llvmprof.out</tt>' data into a human-readable report</li>
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<li><a href="/cmds/llvm-ld.html"><b>llvm-ld</b></a> -
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general purpose linker with loadable runtime optimization support</li>
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<li><a href="/cmds/llvm-config.html"><b>llvm-config</b></a> -
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print out LLVM compilation options, libraries, etc. as configured</li>
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@ -1,234 +0,0 @@
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=pod
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=head1 NAME
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llvm-ld - LLVM linker
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=head1 SYNOPSIS
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B<llvm-ld> <options> <files>
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=head1 DESCRIPTION
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The B<llvm-ld> tool takes a set of LLVM bitcode files and links them
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together into a single LLVM bitcode file. The output bitcode file can be
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another bitcode file or an executable bitcode program. Using additional
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options, B<llvm-ld> is able to produce native code executables.
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The B<llvm-ld> tool is the main linker for LLVM. It is used to link together
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the output of LLVM front-end compilers and run "link time" optimizations (mostly
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the inter-procedural kind).
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The B<llvm-ld> tools attempts to mimic the interface provided by the default
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system linker so that it can act as a I<drop-in> replacement.
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=head2 Search Order
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When looking for objects specified on the command line, B<llvm-ld> will search
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for the object first in the current directory and then in the directory
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specified by the B<LLVM_LIB_SEARCH_PATH> environment variable. If it cannot
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find the object, it fails.
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When looking for a library specified with the B<-l> option, B<llvm-ld> first
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attempts to load a file with that name from the current directory. If that
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fails, it looks for libI<library>.bc, libI<library>.a, or libI<library>.I<shared
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library extension>, in that order, in each directory added to the library search
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path with the B<-L> option. These directories are searched in the order they
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are specified. If the library cannot be located, then B<llvm-ld> looks in the
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directory specified by the B<LLVM_LIB_SEARCH_PATH> environment variable. If it
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does not find a library there, it fails.
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The I<shared library extension> may be I<.so>, I<.dyld>, I<.dll>, or something
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different, depending upon the system.
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The B<-L> option is global. It does not matter where it is specified in the
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list of command line arguments; the directory is simply added to the search path
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and is applied to all libraries, preceding or succeeding, in the command line.
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=head2 Link order
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All object and bitcode files are linked first in the order they were
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specified on the command line. All library files are linked next.
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Some libraries may not be linked into the object program; see below.
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=head2 Library Linkage
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Object files and static bitcode objects are always linked into the output
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file. Library archives (.a files) load only the objects within the archive
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that define symbols needed by the output file. Hence, libraries should be
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listed after the object files and libraries which need them; otherwise, the
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library may not be linked in, and the dependent library will not have its
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undefined symbols defined.
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=head2 Native code generation
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The B<llvm-ld> program has limited support for native code generation, when
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using the B<-native> or B<-native-cbe> options. Native code generation is
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performed by converting the linked bitcode into native assembly (.s) or C code
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and running the system compiler (typically gcc) on the result.
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=head1 OPTIONS
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=head2 General Options
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=over
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=item B<-help>
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Print a summary of command line options.
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=item B<-v>
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Specifies verbose mode. In this mode the linker will print additional
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information about the actions it takes, programs it executes, etc.
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=item B<-stats>
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Print statistics.
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=item B<-time-passes>
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Record the amount of time needed for each pass and print it to standard
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error.
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=back
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=head2 Input/Output Options
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=over
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=item B<-o> F<filename>
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This overrides the default output file and specifies the name of the file that
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should be generated by the linker. By default, B<llvm-ld> generates a file named
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F<a.out> for compatibility with B<ld>. The output will be written to
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F<filename>.
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=item B<-b> F<filename>
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This option can be used to override the output bitcode file name. By default,
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the name of the bitcode output file is one more ".bc" suffix added to the name
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specified by B<-o filename> option.
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=item B<-l>F<name>
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This option specifies the F<name> of a library to search when resolving symbols
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for the program. Only the base name should be specified as F<name>, without a
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F<lib> prefix or any suffix.
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=item B<-L>F<Path>
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This option tells B<llvm-ld> to look in F<Path> to find any library subsequently
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specified with the B<-l> option. The paths will be searched in the order in
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which they are specified on the command line. If the library is still not found,
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a small set of system specific directories will also be searched. Note that
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libraries specified with the B<-l> option that occur I<before> any B<-L> options
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will not search the paths given by the B<-L> options following it.
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=item B<-link-as-library>
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Link the bitcode files together as a library, not an executable. In this mode,
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undefined symbols will be permitted.
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=item B<-r>
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An alias for -link-as-library.
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=item B<-native>
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Generate a native machine code executable.
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When generating native executables, B<llvm-ld> first checks for a bitcode
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version of the library and links it in, if necessary. If the library is
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missing, B<llvm-ld> skips it. Then, B<llvm-ld> links in the same
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libraries as native code.
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In this way, B<llvm-ld> should be able to link in optimized bitcode
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subsets of common libraries and then link in any part of the library that
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hasn't been converted to bitcode.
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=item B<-native-cbe>
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Generate a native machine code executable with the LLVM C backend.
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This option is identical to the B<-native> option, but uses the
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C backend to generate code for the program instead of an LLVM native
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code generator.
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=back
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=head2 Optimization Options
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=over
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=item B<-disable-inlining>
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Do not run the inlining pass. Functions will not be inlined into other
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functions.
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=item B<-disable-opt>
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Completely disable optimization.
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=item B<-disable-internalize>
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Do not mark all symbols as internal.
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=item B<-verify-each>
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Run the verification pass after each of the passes to verify intermediate
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results.
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=item B<-strip-all>
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Strip all debug and symbol information from the executable to make it smaller.
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=item B<-strip-debug>
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Strip all debug information from the executable to make it smaller.
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=item B<-s>
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An alias for B<-strip-all>.
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=item B<-S>
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An alias for B<-strip-debug>.
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=item B<-export-dynamic>
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An alias for B<-disable-internalize>
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=item B<-post-link-opt>F<Path>
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Run post-link optimization program. After linking is completed a bitcode file
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will be generated. It will be passed to the program specified by F<Path> as the
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first argument. The second argument to the program will be the name of a
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temporary file into which the program should place its optimized output. For
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example, the "no-op optimization" would be a simple shell script:
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#!/bin/bash
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cp $1 $2
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=back
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=head1 EXIT STATUS
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If B<llvm-ld> succeeds, it will exit with 0 return code. If an error occurs,
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it will exit with a non-zero return code.
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=head1 ENVIRONMENT
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The C<LLVM_LIB_SEARCH_PATH> environment variable is used to find bitcode
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libraries. Any paths specified in this variable will be searched after the C<-L>
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options.
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=head1 SEE ALSO
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L<llvm-link|llvm-link>
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=head1 AUTHORS
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Maintained by the LLVM Team (L<http://llvm.org/>).
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=cut
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211
docs/FAQ.html
211
docs/FAQ.html
@ -19,9 +19,6 @@
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<ol>
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<li><a href="#license">License</a>
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<ol>
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<li>Why are the LLVM source code and the front-end distributed under
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different licenses?</li>
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<li>Does the University of Illinois Open Source License really qualify as an
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"open source" license?</li>
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@ -72,8 +69,6 @@
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<li>After Subversion update, rebuilding gives the error "No rule to make
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target".</li>
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<li><a href="#srcdir-objdir">When I compile LLVM-GCC with srcdir == objdir,
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it fails. Why?</a></li>
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</ol></li>
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<li><a href="#felangs">Source Languages</a>
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@ -91,30 +86,17 @@
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instruction. Help!</a></li>
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</ol>
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||||
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<li><a href="#cfe">Using the GCC Front End</a>
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<li><a href="#cfe">Using the C and C++ Front Ends</a>
|
||||
<ol>
|
||||
<li>When I compile software that uses a configure script, the configure
|
||||
script thinks my system has all of the header files and libraries it is
|
||||
testing for. How do I get configure to work correctly?</li>
|
||||
|
||||
<li>When I compile code using the LLVM GCC front end, it complains that it
|
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cannot find libcrtend.a?</li>
|
||||
|
||||
<li>How can I disable all optimizations when compiling code using the LLVM
|
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GCC front end?</li>
|
||||
|
||||
<li><a href="#translatecxx">Can I use LLVM to convert C++ code to C
|
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code?</a></li>
|
||||
|
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<li><a href="#platformindependent">Can I compile C or C++ code to
|
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platform-independent LLVM bitcode?</a></li>
|
||||
</ol>
|
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</li>
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||||
|
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<li><a href="#cfe_code">Questions about code generated by the GCC front-end</a>
|
||||
<li><a href="#cfe_code">Questions about code generated by the demo page</a>
|
||||
<ol>
|
||||
<li><a href="#iosinit">What is this <tt>llvm.global_ctors</tt> and
|
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<tt>_GLOBAL__I__tmp_webcompile...</tt> stuff that happens when I
|
||||
<tt>_GLOBAL__I_a...</tt> stuff that happens when I
|
||||
#include <iostream>?</a></li>
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|
||||
<li><a href="#codedce">Where did all of my code go??</a></li>
|
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@ -142,19 +124,6 @@
|
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|
||||
<div>
|
||||
|
||||
<div class="question">
|
||||
<p>Why are the LLVM source code and the front-end distributed under different
|
||||
licenses?</p>
|
||||
</div>
|
||||
|
||||
<div class="answer">
|
||||
<p>The C/C++ front-ends are based on GCC and must be distributed under the GPL.
|
||||
Our aim is to distribute LLVM source code under a <em>much less
|
||||
restrictive</em> license, in particular one that does not compel users who
|
||||
distribute tools based on modifying the source to redistribute the modified
|
||||
source code as well.</p>
|
||||
</div>
|
||||
|
||||
<div class="question">
|
||||
<p>Does the University of Illinois Open Source License really qualify as an
|
||||
"open source" license?</p>
|
||||
@ -219,12 +188,9 @@ LLVM have been ported to a plethora of platforms.</p>
|
||||
<p>Some porting problems may exist in the following areas:</p>
|
||||
|
||||
<ul>
|
||||
<li>The GCC front end code is not as portable as the LLVM suite, so it may not
|
||||
compile as well on unsupported platforms.</li>
|
||||
|
||||
<li>The LLVM build system relies heavily on UNIX shell tools, like the Bourne
|
||||
Shell and sed. Porting to systems without these tools (MacOS 9, Plan 9)
|
||||
will require more effort.</li>
|
||||
<li>The autoconf/makefile build system relies heavily on UNIX shell tools,
|
||||
like the Bourne Shell and sed. Porting to systems without these tools
|
||||
(MacOS 9, Plan 9) Will require more effort.</li>
|
||||
</ul>
|
||||
|
||||
</div>
|
||||
@ -256,7 +222,7 @@ LLVM have been ported to a plethora of platforms.</p>
|
||||
|
||||
<div class="question">
|
||||
<p>The <tt>configure</tt> script finds the right C compiler, but it uses the
|
||||
LLVM linker from a previous build. What do I do?</p>
|
||||
LLVM tools from a previous build. What do I do?</p>
|
||||
</div>
|
||||
|
||||
<div class="answer">
|
||||
@ -426,25 +392,6 @@ Stop.
|
||||
rebuilding.</p>
|
||||
</div>
|
||||
|
||||
<div class="question">
|
||||
<p><a name="srcdir-objdir">When I compile LLVM-GCC with srcdir == objdir, it
|
||||
fails. Why?</a></p>
|
||||
</div>
|
||||
|
||||
<div class="answer">
|
||||
<p>The <tt>GNUmakefile</tt> in the top-level directory of LLVM-GCC is a special
|
||||
<tt>Makefile</tt> used by Apple to invoke the <tt>build_gcc</tt> script after
|
||||
setting up a special environment. This has the unfortunate side-effect that
|
||||
trying to build LLVM-GCC with srcdir == objdir in a "non-Apple way" invokes
|
||||
the <tt>GNUmakefile</tt> instead of <tt>Makefile</tt>. Because the
|
||||
environment isn't set up correctly to do this, the build fails.</p>
|
||||
|
||||
<p>People not building LLVM-GCC the "Apple way" need to build LLVM-GCC with
|
||||
srcdir != objdir, or simply remove the GNUmakefile entirely.</p>
|
||||
|
||||
<p>We regret the inconvenience.</p>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
|
||||
<!-- *********************************************************************** -->
|
||||
@ -460,12 +407,8 @@ Stop.
|
||||
|
||||
<div class="answer">
|
||||
<p>LLVM currently has full support for C and C++ source languages. These are
|
||||
available through a special version of GCC that LLVM calls the
|
||||
<a href="#cfe">C Front End</a></p>
|
||||
|
||||
<p>There is an incomplete version of a Java front end available in the
|
||||
<tt>java</tt> module. There is no documentation on this yet so you'll need to
|
||||
download the code, compile it, and try it.</p>
|
||||
available through both <a href="http://clang.llvm.org/">Clang</a> and
|
||||
<a href="http://dragonegg.llvm.org/">DragonEgg</a>.</p>
|
||||
|
||||
<p>The PyPy developers are working on integrating LLVM into the PyPy backend so
|
||||
that PyPy language can translate to LLVM.</p>
|
||||
@ -558,141 +501,11 @@ Stop.
|
||||
|
||||
<!-- *********************************************************************** -->
|
||||
<h2>
|
||||
<a name="cfe">Using the GCC Front End</a>
|
||||
<a name="cfe">Using the C and C++ Front Ends</a>
|
||||
</h2>
|
||||
|
||||
<div>
|
||||
|
||||
<div class="question">
|
||||
<p>When I compile software that uses a configure script, the configure script
|
||||
thinks my system has all of the header files and libraries it is testing for.
|
||||
How do I get configure to work correctly?</p>
|
||||
</div>
|
||||
|
||||
<div class="answer">
|
||||
<p>The configure script is getting things wrong because the LLVM linker allows
|
||||
symbols to be undefined at link time (so that they can be resolved during JIT
|
||||
or translation to the C back end). That is why configure thinks your system
|
||||
"has everything."</p>
|
||||
|
||||
<p>To work around this, perform the following steps:</p>
|
||||
|
||||
<ol>
|
||||
<li>Make sure the CC and CXX environment variables contains the full path to
|
||||
the LLVM GCC front end.</li>
|
||||
|
||||
<li>Make sure that the regular C compiler is first in your PATH. </li>
|
||||
|
||||
<li>Add the string "-Wl,-native" to your CFLAGS environment variable.</li>
|
||||
</ol>
|
||||
|
||||
<p>This will allow the <tt>llvm-ld</tt> linker to create a native code
|
||||
executable instead of shell script that runs the JIT. Creating native code
|
||||
requires standard linkage, which in turn will allow the configure script to
|
||||
find out if code is not linking on your system because the feature isn't
|
||||
available on your system.</p>
|
||||
</div>
|
||||
|
||||
<div class="question">
|
||||
<p>When I compile code using the LLVM GCC front end, it complains that it cannot
|
||||
find libcrtend.a.
|
||||
</p>
|
||||
</div>
|
||||
|
||||
<div class="answer">
|
||||
<p>The only way this can happen is if you haven't installed the runtime
|
||||
library. To correct this, do:</p>
|
||||
|
||||
<pre class="doc_code">
|
||||
% cd llvm/runtime
|
||||
% make clean ; make install-bytecode
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="question">
|
||||
<p>How can I disable all optimizations when compiling code using the LLVM GCC
|
||||
front end?</p>
|
||||
</div>
|
||||
|
||||
<div class="answer">
|
||||
<p>Passing "-Wa,-disable-opt -Wl,-disable-opt" will disable *all* cleanup and
|
||||
optimizations done at the llvm level, leaving you with the truly horrible
|
||||
code that you desire.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="question">
|
||||
<p><a name="translatecxx">Can I use LLVM to convert C++ code to C code?</a></p>
|
||||
</div>
|
||||
|
||||
<div class="answer">
|
||||
<p>Yes, you can use LLVM to convert code from any language LLVM supports to C.
|
||||
Note that the generated C code will be very low level (all loops are lowered
|
||||
to gotos, etc) and not very pretty (comments are stripped, original source
|
||||
formatting is totally lost, variables are renamed, expressions are
|
||||
regrouped), so this may not be what you're looking for. Also, there are
|
||||
several limitations noted below.<p>
|
||||
|
||||
<p>Use commands like this:</p>
|
||||
|
||||
<ol>
|
||||
<li><p>Compile your program with llvm-g++:</p>
|
||||
|
||||
<pre class="doc_code">
|
||||
% llvm-g++ -emit-llvm x.cpp -o program.bc -c
|
||||
</pre>
|
||||
|
||||
<p>or:</p>
|
||||
|
||||
<pre class="doc_code">
|
||||
% llvm-g++ a.cpp -c -emit-llvm
|
||||
% llvm-g++ b.cpp -c -emit-llvm
|
||||
% llvm-ld a.o b.o -o program
|
||||
</pre>
|
||||
|
||||
<p>This will generate program and program.bc. The .bc
|
||||
file is the LLVM version of the program all linked together.</p></li>
|
||||
|
||||
<li><p>Convert the LLVM code to C code, using the LLC tool with the C
|
||||
backend:</p>
|
||||
|
||||
<pre class="doc_code">
|
||||
% llc -march=c program.bc -o program.c
|
||||
</pre></li>
|
||||
|
||||
<li><p>Finally, compile the C file:</p>
|
||||
|
||||
<pre class="doc_code">
|
||||
% cc x.c -lstdc++
|
||||
</pre></li>
|
||||
|
||||
</ol>
|
||||
|
||||
<p>Using LLVM does not eliminate the need for C++ library support. If you use
|
||||
the llvm-g++ front-end, the generated code will depend on g++'s C++ support
|
||||
libraries in the same way that code generated from g++ would. If you use
|
||||
another C++ front-end, the generated code will depend on whatever library
|
||||
that front-end would normally require.</p>
|
||||
|
||||
<p>If you are working on a platform that does not provide any C++ libraries, you
|
||||
may be able to manually compile libstdc++ to LLVM bitcode, statically link it
|
||||
into your program, then use the commands above to convert the whole result
|
||||
into C code. Alternatively, you might compile the libraries and your
|
||||
application into two different chunks of C code and link them.</p>
|
||||
|
||||
<p>Note that, by default, the C back end does not support exception handling.
|
||||
If you want/need it for a certain program, you can enable it by passing
|
||||
"-enable-correct-eh-support" to the llc program. The resultant code will use
|
||||
setjmp/longjmp to implement exception support that is relatively slow, and
|
||||
not C++-ABI-conforming on most platforms, but otherwise correct.</p>
|
||||
|
||||
<p>Also, there are a number of other limitations of the C backend that cause it
|
||||
to produce code that does not fully conform to the C++ ABI on most
|
||||
platforms. Some of the C++ programs in LLVM's test suite are known to fail
|
||||
when compiled with the C back end because of ABI incompatibilities with
|
||||
standard C++ libraries.</p>
|
||||
</div>
|
||||
|
||||
<div class="question">
|
||||
<p><a name="platformindependent">Can I compile C or C++ code to
|
||||
platform-independent LLVM bitcode?</a></p>
|
||||
@ -719,14 +532,14 @@ Stop.
|
||||
|
||||
<!-- *********************************************************************** -->
|
||||
<h2>
|
||||
<a name="cfe_code">Questions about code generated by the GCC front-end</a>
|
||||
<a name="cfe_code">Questions about code generated by the demo page</a>
|
||||
</h2>
|
||||
|
||||
<div>
|
||||
|
||||
<div class="question">
|
||||
<p><a name="iosinit">What is this <tt>llvm.global_ctors</tt> and
|
||||
<tt>_GLOBAL__I__tmp_webcompile...</tt> stuff that happens when I <tt>#include
|
||||
<tt>_GLOBAL__I_a...</tt> stuff that happens when I <tt>#include
|
||||
<iostream></tt>?</a></p>
|
||||
</div>
|
||||
|
||||
|
||||
@ -1510,12 +1510,6 @@ information is in the <a href="CommandGuide/index.html">Command Guide</a>.</p>
|
||||
<dd>The disassembler transforms the LLVM bitcode to human readable
|
||||
LLVM assembly.</dd>
|
||||
|
||||
<dt><tt><b>llvm-ld</b></tt></dt>
|
||||
<dd><tt>llvm-ld</tt> is a general purpose and extensible linker for LLVM.
|
||||
It performs standard link time optimizations and allows optimization
|
||||
modules to be loaded and run so that language specific optimizations can
|
||||
be applied at link time.</dd>
|
||||
|
||||
<dt><tt><b>llvm-link</b></tt></dt>
|
||||
<dd><tt>llvm-link</tt>, not surprisingly, links multiple LLVM modules into
|
||||
a single program.</dd>
|
||||
|
||||
@ -604,6 +604,7 @@ syntax, there are still significant gaps in that support.</p>
|
||||
<ul>
|
||||
<li>llvm-stress is a command line tool for generating random .ll files to fuzz
|
||||
different LLVM components. </li>
|
||||
<li>llvm-ld has been removed. Use llvm-link or Clang instead.</li>
|
||||
<li>....</li>
|
||||
</ul>
|
||||
|
||||
|
||||
@ -253,10 +253,9 @@ add instruction from every execution of this function.</p>
|
||||
<p>LLVM provides a wide variety of optimizations that can be used in certain
|
||||
circumstances. Some <a href="../Passes.html">documentation about the various
|
||||
passes</a> is available, but it isn't very complete. Another good source of
|
||||
ideas can come from looking at the passes that <tt>llvm-gcc</tt> or
|
||||
<tt>llvm-ld</tt> run to get started. The "<tt>opt</tt>" tool allows you to
|
||||
experiment with passes from the command line, so you can see if they do
|
||||
anything.</p>
|
||||
ideas can come from looking at the passes that <tt>Clang</tt> runs to get
|
||||
started. The "<tt>opt</tt>" tool allows you to experiment with passes from the
|
||||
command line, so you can see if they do anything.</p>
|
||||
|
||||
<p>Now that we have reasonable code coming out of our front-end, lets talk about
|
||||
executing it!</p>
|
||||
|
||||
@ -270,10 +270,9 @@ add instruction from every execution of this function.</p>
|
||||
<p>LLVM provides a wide variety of optimizations that can be used in certain
|
||||
circumstances. Some <a href="../Passes.html">documentation about the various
|
||||
passes</a> is available, but it isn't very complete. Another good source of
|
||||
ideas can come from looking at the passes that <tt>llvm-gcc</tt> or
|
||||
<tt>llvm-ld</tt> run to get started. The "<tt>opt</tt>" tool allows you to
|
||||
experiment with passes from the command line, so you can see if they do
|
||||
anything.</p>
|
||||
ideas can come from looking at the passes that <tt>Clang</tt> runs to get
|
||||
started. The "<tt>opt</tt>" tool allows you to experiment with passes from the
|
||||
command line, so you can see if they do anything.</p>
|
||||
|
||||
<p>Now that we have reasonable code coming out of our front-end, lets talk about
|
||||
executing it!</p>
|
||||
|
||||
@ -21,7 +21,6 @@
|
||||
// ./BrainF prog.bf #Write as BitCode
|
||||
//
|
||||
// lli prog.bf.bc #Run generated BitCode
|
||||
// llvm-ld -native -o=prog prog.bf.bc #Compile BitCode into native executable
|
||||
//
|
||||
//===--------------------------------------------------------------------===//
|
||||
|
||||
|
||||
@ -463,9 +463,6 @@ ifndef LLVM_TBLGEN
|
||||
endif
|
||||
endif
|
||||
LLVM_CONFIG := $(LLVMToolDir)/llvm-config
|
||||
ifndef LLVMLD
|
||||
LLVMLD := $(LLVMToolDir)/llvm-ld$(EXEEXT)
|
||||
endif
|
||||
ifndef LLVMDIS
|
||||
LLVMDIS := $(LLVMToolDir)/llvm-dis$(EXEEXT)
|
||||
endif
|
||||
|
||||
@ -75,7 +75,7 @@ add_dependencies(check.deps
|
||||
UnitTests
|
||||
BugpointPasses LLVMHello
|
||||
llc lli llvm-ar llvm-as llvm-dis llvm-extract llvm-dwarfdump
|
||||
llvm-ld llvm-link llvm-mc llvm-nm llvm-objdump llvm-readobj
|
||||
llvm-link llvm-mc llvm-nm llvm-objdump llvm-readobj
|
||||
macho-dump opt
|
||||
FileCheck count not json-bench)
|
||||
set_target_properties(check.deps PROPERTIES FOLDER "Tests")
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
; RUN: llvm-as < %s > %t.bc
|
||||
; RUN: llvm-as < %p/2008-03-07-DroppedSection_b.ll > %t2.bc
|
||||
; RUN: llvm-ld -r -disable-opt %t.bc %t2.bc -o %t3.bc
|
||||
; RUN: llvm-link %t.bc %t2.bc -o %t3.bc
|
||||
; RUN: llvm-dis < %t3.bc | grep ".data.init_task"
|
||||
|
||||
; ModuleID = 't.bc'
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
; RUN: llvm-as < %s > %t.bc
|
||||
; RUN: llvm-as < %p/2008-03-07-DroppedSection_a.ll > %t2.bc
|
||||
; RUN: llvm-ld -r -disable-opt %t.bc %t2.bc -o %t3.bc
|
||||
; RUN: llvm-link %t.bc %t2.bc -o %t3.bc
|
||||
; RUN: llvm-dis < %t3.bc | grep ".data.init_task"
|
||||
|
||||
; ModuleID = 'u.bc'
|
||||
|
||||
@ -1,16 +0,0 @@
|
||||
; Test linking of a bc file to an archive via llvm-ld.
|
||||
; PR1434
|
||||
; RUN: rm -f %t.bar.a %t.foo.a
|
||||
; RUN: llvm-as %s -o %t.bar.bc
|
||||
; RUN: echo {define i32* @foo(i32 %x) \{ ret i32* @baz \} \
|
||||
; RUN: @baz = external global i32 } | llvm-as -o %t.foo.bc
|
||||
; RUN: llvm-ar rcf %t.foo.a %t.foo.bc
|
||||
; RUN: llvm-ar rcf %t.bar.a %t.bar.bc
|
||||
; RUN: llvm-ld -disable-opt %t.bar.bc %t.foo.a -o %t.bc
|
||||
; RUN: llvm-ld -disable-opt %t.foo.bc %t.bar.a -o %t.bc
|
||||
declare i32* @foo(...)
|
||||
define i32* @bar() {
|
||||
%ret = call i32* (...)* @foo( i32 123 )
|
||||
ret i32* %ret
|
||||
}
|
||||
@baz = global i32 0
|
||||
@ -2,10 +2,9 @@
|
||||
; that error is printed out.
|
||||
; RUN: llvm-as %s -o %t.one.bc
|
||||
; RUN: llvm-as %s -o %t.two.bc
|
||||
; RUN: not llvm-ld -disable-opt -link-as-library %t.one.bc %t.two.bc \
|
||||
; RUN: -o %t.bc 2>%t.err
|
||||
; RUN: grep "symbol multiply defined" %t.err
|
||||
; RUN: not llvm-link %t.one.bc %t.two.bc -o %t.bc |& FileCheck %s
|
||||
|
||||
; CHECK: symbol multiply defined
|
||||
define i32 @bar() {
|
||||
ret i32 0
|
||||
ret i32 0
|
||||
}
|
||||
|
||||
@ -187,12 +187,12 @@ for pattern in [r"\bbugpoint\b(?!-)", r"(?<!/|-)\bclang\b(?!-)",
|
||||
r"\bllvm-bcanalyzer\b", r"\bllvm-config\b",
|
||||
r"\bllvm-cov\b", r"\bllvm-diff\b",
|
||||
r"\bllvm-dis\b", r"\bllvm-dwarfdump\b",
|
||||
r"\bllvm-extract\b", r"\bllvm-ld\b",
|
||||
r"\bllvm-extract\b",
|
||||
r"\bllvm-link\b", r"\bllvm-mc\b",
|
||||
r"\bllvm-nm\b", r"\bllvm-objdump\b",
|
||||
r"\bllvm-prof\b", r"\bllvm-ranlib\b",
|
||||
r"\bllvm-rtdyld\b", r"\bllvm-shlib\b",
|
||||
r"\bllvm-size\b", r"\bllvm-stub\b",
|
||||
r"\bllvm-size\b",
|
||||
# Don't match '-llvmc'.
|
||||
r"(?<!-)\bllvmc\b", r"\blto\b",
|
||||
# Don't match '.opt', '-opt',
|
||||
|
||||
@ -27,7 +27,6 @@ add_subdirectory(llvm-ar)
|
||||
add_subdirectory(llvm-nm)
|
||||
add_subdirectory(llvm-size)
|
||||
|
||||
add_subdirectory(llvm-ld)
|
||||
add_subdirectory(llvm-cov)
|
||||
add_subdirectory(llvm-prof)
|
||||
add_subdirectory(llvm-link)
|
||||
@ -44,7 +43,6 @@ add_subdirectory(llvm-dwarfdump)
|
||||
add_subdirectory(bugpoint)
|
||||
add_subdirectory(bugpoint-passes)
|
||||
add_subdirectory(llvm-bcanalyzer)
|
||||
add_subdirectory(llvm-stub)
|
||||
add_subdirectory(llvm-stress)
|
||||
|
||||
if( NOT WIN32 )
|
||||
|
||||
@ -16,7 +16,7 @@
|
||||
;===------------------------------------------------------------------------===;
|
||||
|
||||
[common]
|
||||
subdirectories = bugpoint llc lli llvm-ar llvm-as llvm-bcanalyzer llvm-cov llvm-diff llvm-dis llvm-dwarfdump llvm-extract llvm-ld llvm-link llvm-mc llvm-nm llvm-objdump llvm-prof llvm-ranlib llvm-rtdyld llvm-size llvm-stub macho-dump opt
|
||||
subdirectories = bugpoint llc lli llvm-ar llvm-as llvm-bcanalyzer llvm-cov llvm-diff llvm-dis llvm-dwarfdump llvm-extract llvm-link llvm-mc llvm-nm llvm-objdump llvm-prof llvm-ranlib llvm-rtdyld llvm-size macho-dump opt
|
||||
|
||||
[component_0]
|
||||
type = Group
|
||||
|
||||
@ -29,9 +29,9 @@ OPTIONAL_DIRS := lldb
|
||||
DIRS := llvm-config
|
||||
PARALLEL_DIRS := opt llvm-as llvm-dis \
|
||||
llc llvm-ranlib llvm-ar llvm-nm \
|
||||
llvm-ld llvm-prof llvm-link \
|
||||
llvm-prof llvm-link \
|
||||
lli llvm-extract llvm-mc \
|
||||
bugpoint llvm-bcanalyzer llvm-stub \
|
||||
bugpoint llvm-bcanalyzer \
|
||||
llvm-diff macho-dump llvm-objdump llvm-readobj \
|
||||
llvm-rtdyld llvm-dwarfdump llvm-cov \
|
||||
llvm-size llvm-stress
|
||||
|
||||
@ -1,8 +0,0 @@
|
||||
set(LLVM_LINK_COMPONENTS ipo scalaropts linker archive bitwriter vectorize)
|
||||
|
||||
add_llvm_tool(llvm-ld
|
||||
Optimize.cpp
|
||||
llvm-ld.cpp
|
||||
)
|
||||
|
||||
add_dependencies(llvm-ld llvm-stub)
|
||||
@ -1,22 +0,0 @@
|
||||
;===- ./tools/llvm-ld/LLVMBuild.txt ----------------------------*- Conf -*--===;
|
||||
;
|
||||
; The LLVM Compiler Infrastructure
|
||||
;
|
||||
; This file is distributed under the University of Illinois Open Source
|
||||
; License. See LICENSE.TXT for details.
|
||||
;
|
||||
;===------------------------------------------------------------------------===;
|
||||
;
|
||||
; This is an LLVMBuild description file for the components in this subdirectory.
|
||||
;
|
||||
; For more information on the LLVMBuild system, please see:
|
||||
;
|
||||
; http://llvm.org/docs/LLVMBuild.html
|
||||
;
|
||||
;===------------------------------------------------------------------------===;
|
||||
|
||||
[component_0]
|
||||
type = Tool
|
||||
name = llvm-ld
|
||||
parent = Tools
|
||||
required_libraries = Archive BitWriter IPO Linker Scalar
|
||||
@ -1,14 +0,0 @@
|
||||
##===- tools/llvm-ld/Makefile ------------------------------*- Makefile -*-===##
|
||||
#
|
||||
# The LLVM Compiler Infrastructure
|
||||
#
|
||||
# This file is distributed under the University of Illinois Open Source
|
||||
# License. See LICENSE.TXT for details.
|
||||
#
|
||||
##===----------------------------------------------------------------------===##
|
||||
|
||||
LEVEL := ../..
|
||||
TOOLNAME := llvm-ld
|
||||
LINK_COMPONENTS := ipo scalaropts linker archive bitwriter vectorize
|
||||
|
||||
include $(LEVEL)/Makefile.common
|
||||
@ -1,130 +0,0 @@
|
||||
//===- Optimize.cpp - Optimize a complete program -------------------------===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This file implements all optimization of the linked module for llvm-ld.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "llvm/Module.h"
|
||||
#include "llvm/PassManager.h"
|
||||
#include "llvm/Analysis/Verifier.h"
|
||||
#include "llvm/Support/CommandLine.h"
|
||||
#include "llvm/Support/raw_ostream.h"
|
||||
#include "llvm/Support/DynamicLibrary.h"
|
||||
#include "llvm/Target/TargetData.h"
|
||||
#include "llvm/Target/TargetMachine.h"
|
||||
#include "llvm/Support/PassNameParser.h"
|
||||
#include "llvm/Support/PluginLoader.h"
|
||||
#include "llvm/Transforms/IPO.h"
|
||||
#include "llvm/Transforms/IPO/PassManagerBuilder.h"
|
||||
#include "llvm/Transforms/Scalar.h"
|
||||
using namespace llvm;
|
||||
|
||||
// Pass Name Options as generated by the PassNameParser
|
||||
static cl::list<const PassInfo*, bool, PassNameParser>
|
||||
OptimizationList(cl::desc("Optimizations available:"));
|
||||
|
||||
//Don't verify at the end
|
||||
static cl::opt<bool> DontVerify("disable-verify", cl::ReallyHidden);
|
||||
|
||||
static cl::opt<bool> DisableInline("disable-inlining",
|
||||
cl::desc("Do not run the inliner pass"));
|
||||
|
||||
static cl::opt<bool>
|
||||
DisableOptimizations("disable-opt",
|
||||
cl::desc("Do not run any optimization passes"));
|
||||
|
||||
static cl::opt<bool> DisableInternalize("disable-internalize",
|
||||
cl::desc("Do not mark all symbols as internal"));
|
||||
|
||||
static cl::opt<bool> VerifyEach("verify-each",
|
||||
cl::desc("Verify intermediate results of all passes"));
|
||||
|
||||
static cl::alias ExportDynamic("export-dynamic",
|
||||
cl::aliasopt(DisableInternalize),
|
||||
cl::desc("Alias for -disable-internalize"));
|
||||
|
||||
static cl::opt<bool> Strip("strip-all",
|
||||
cl::desc("Strip all symbol info from executable"));
|
||||
|
||||
static cl::alias A0("s", cl::desc("Alias for --strip-all"),
|
||||
cl::aliasopt(Strip));
|
||||
|
||||
static cl::opt<bool> StripDebug("strip-debug",
|
||||
cl::desc("Strip debugger symbol info from executable"));
|
||||
|
||||
static cl::alias A1("S", cl::desc("Alias for --strip-debug"),
|
||||
cl::aliasopt(StripDebug));
|
||||
|
||||
// A utility function that adds a pass to the pass manager but will also add
|
||||
// a verifier pass after if we're supposed to verify.
|
||||
static inline void addPass(PassManager &PM, Pass *P) {
|
||||
// Add the pass to the pass manager...
|
||||
PM.add(P);
|
||||
|
||||
// If we are verifying all of the intermediate steps, add the verifier...
|
||||
if (VerifyEach)
|
||||
PM.add(createVerifierPass());
|
||||
}
|
||||
|
||||
namespace llvm {
|
||||
/// Optimize - Perform link time optimizations. This will run the scalar
|
||||
/// optimizations, any loaded plugin-optimization modules, and then the
|
||||
/// inter-procedural optimizations if applicable.
|
||||
void Optimize(Module *M) {
|
||||
|
||||
// Instantiate the pass manager to organize the passes.
|
||||
PassManager Passes;
|
||||
|
||||
// If we're verifying, start off with a verification pass.
|
||||
if (VerifyEach)
|
||||
Passes.add(createVerifierPass());
|
||||
|
||||
// Add an appropriate TargetData instance for this module...
|
||||
addPass(Passes, new TargetData(M));
|
||||
|
||||
if (!DisableOptimizations)
|
||||
PassManagerBuilder().populateLTOPassManager(Passes, !DisableInternalize,
|
||||
!DisableInline);
|
||||
|
||||
// If the -s or -S command line options were specified, strip the symbols out
|
||||
// of the resulting program to make it smaller. -s and -S are GNU ld options
|
||||
// that we are supporting; they alias -strip-all and -strip-debug.
|
||||
if (Strip || StripDebug)
|
||||
addPass(Passes, createStripSymbolsPass(StripDebug && !Strip));
|
||||
|
||||
// Create a new optimization pass for each one specified on the command line
|
||||
std::auto_ptr<TargetMachine> target;
|
||||
for (unsigned i = 0; i < OptimizationList.size(); ++i) {
|
||||
const PassInfo *Opt = OptimizationList[i];
|
||||
if (Opt->getNormalCtor())
|
||||
addPass(Passes, Opt->getNormalCtor()());
|
||||
else
|
||||
errs() << "llvm-ld: cannot create pass: " << Opt->getPassName()
|
||||
<< "\n";
|
||||
}
|
||||
|
||||
// The user's passes may leave cruft around. Clean up after them them but
|
||||
// only if we haven't got DisableOptimizations set
|
||||
if (!DisableOptimizations) {
|
||||
addPass(Passes, createInstructionCombiningPass());
|
||||
addPass(Passes, createCFGSimplificationPass());
|
||||
addPass(Passes, createAggressiveDCEPass());
|
||||
addPass(Passes, createGlobalDCEPass());
|
||||
}
|
||||
|
||||
// Make sure everything is still good.
|
||||
if (!DontVerify)
|
||||
Passes.add(createVerifierPass());
|
||||
|
||||
// Run our queue of passes all at once now, efficiently.
|
||||
Passes.run(*M);
|
||||
}
|
||||
|
||||
}
|
||||
@ -1,732 +0,0 @@
|
||||
//===- llvm-ld.cpp - LLVM 'ld' compatible linker --------------------------===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This utility is intended to be compatible with GCC, and follows standard
|
||||
// system 'ld' conventions. As such, the default output file is ./a.out.
|
||||
// Additionally, this program outputs a shell script that is used to invoke LLI
|
||||
// to execute the program. In this manner, the generated executable (a.out for
|
||||
// example), is directly executable, whereas the bitcode file actually lives in
|
||||
// the a.out.bc file generated by this program.
|
||||
//
|
||||
// Note that if someone (or a script) deletes the executable program generated,
|
||||
// the .bc file will be left around. Considering that this is a temporary hack,
|
||||
// I'm not too worried about this.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "llvm/LinkAllVMCore.h"
|
||||
#include "llvm/Linker.h"
|
||||
#include "llvm/LLVMContext.h"
|
||||
#include "llvm/Support/Program.h"
|
||||
#include "llvm/Module.h"
|
||||
#include "llvm/PassManager.h"
|
||||
#include "llvm/Bitcode/ReaderWriter.h"
|
||||
#include "llvm/Target/TargetData.h"
|
||||
#include "llvm/Target/TargetMachine.h"
|
||||
#include "llvm/Support/CommandLine.h"
|
||||
#include "llvm/Support/FileUtilities.h"
|
||||
#include "llvm/Support/ManagedStatic.h"
|
||||
#include "llvm/Support/MemoryBuffer.h"
|
||||
#include "llvm/Support/PrettyStackTrace.h"
|
||||
#include "llvm/Support/SystemUtils.h"
|
||||
#include "llvm/Support/ToolOutputFile.h"
|
||||
#include "llvm/Support/Signals.h"
|
||||
#include <memory>
|
||||
#include <cstring>
|
||||
using namespace llvm;
|
||||
|
||||
// Rightly this should go in a header file but it just seems such a waste.
|
||||
namespace llvm {
|
||||
extern void Optimize(Module*);
|
||||
}
|
||||
|
||||
// Input/Output Options
|
||||
static cl::list<std::string> InputFilenames(cl::Positional, cl::OneOrMore,
|
||||
cl::desc("<input bitcode files>"));
|
||||
|
||||
static cl::opt<std::string> OutputFilename("o", cl::init("a.out"),
|
||||
cl::desc("Override output filename"),
|
||||
cl::value_desc("filename"));
|
||||
|
||||
static cl::opt<std::string> BitcodeOutputFilename("b", cl::init(""),
|
||||
cl::desc("Override bitcode output filename"),
|
||||
cl::value_desc("filename"));
|
||||
|
||||
static cl::opt<bool> Verbose("v",
|
||||
cl::desc("Print information about actions taken"));
|
||||
|
||||
static cl::list<std::string> LibPaths("L", cl::Prefix,
|
||||
cl::desc("Specify a library search path"),
|
||||
cl::value_desc("directory"));
|
||||
|
||||
static cl::list<std::string> FrameworkPaths("F", cl::Prefix,
|
||||
cl::desc("Specify a framework search path"),
|
||||
cl::value_desc("directory"));
|
||||
|
||||
static cl::list<std::string> Libraries("l", cl::Prefix,
|
||||
cl::desc("Specify libraries to link to"),
|
||||
cl::value_desc("library prefix"));
|
||||
|
||||
static cl::list<std::string> Frameworks("framework",
|
||||
cl::desc("Specify frameworks to link to"),
|
||||
cl::value_desc("framework"));
|
||||
|
||||
// Options to control the linking, optimization, and code gen processes
|
||||
static cl::opt<bool> LinkAsLibrary("link-as-library",
|
||||
cl::desc("Link the .bc files together as a library, not an executable"));
|
||||
|
||||
static cl::alias Relink("r", cl::aliasopt(LinkAsLibrary),
|
||||
cl::desc("Alias for -link-as-library"));
|
||||
|
||||
static cl::opt<bool> Native("native",
|
||||
cl::desc("Generate a native binary instead of a shell script"));
|
||||
|
||||
static cl::opt<bool>NativeCBE("native-cbe",
|
||||
cl::desc("Generate a native binary with the C backend and GCC"));
|
||||
|
||||
static cl::list<std::string> PostLinkOpts("post-link-opts",
|
||||
cl::value_desc("path"),
|
||||
cl::desc("Run one or more optimization programs after linking"));
|
||||
|
||||
static cl::list<std::string> XLinker("Xlinker", cl::value_desc("option"),
|
||||
cl::desc("Pass options to the system linker"));
|
||||
|
||||
// Compatibility options that llvm-ld ignores but are supported for
|
||||
// compatibility with LD
|
||||
static cl::opt<std::string> CO3("soname", cl::Hidden,
|
||||
cl::desc("Compatibility option: ignored"));
|
||||
|
||||
static cl::opt<std::string> CO4("version-script", cl::Hidden,
|
||||
cl::desc("Compatibility option: ignored"));
|
||||
|
||||
static cl::opt<bool> CO5("eh-frame-hdr", cl::Hidden,
|
||||
cl::desc("Compatibility option: ignored"));
|
||||
|
||||
static cl::opt<std::string> CO6("h", cl::Hidden,
|
||||
cl::desc("Compatibility option: ignored"));
|
||||
|
||||
static cl::opt<bool> CO7("start-group", cl::Hidden,
|
||||
cl::desc("Compatibility option: ignored"));
|
||||
|
||||
static cl::opt<bool> CO8("end-group", cl::Hidden,
|
||||
cl::desc("Compatibility option: ignored"));
|
||||
|
||||
static cl::opt<std::string> CO9("m", cl::Hidden,
|
||||
cl::desc("Compatibility option: ignored"));
|
||||
|
||||
/// This is just for convenience so it doesn't have to be passed around
|
||||
/// everywhere.
|
||||
static std::string progname;
|
||||
|
||||
/// FileRemover objects to clean up output files in the event of an error.
|
||||
static FileRemover OutputRemover;
|
||||
static FileRemover BitcodeOutputRemover;
|
||||
|
||||
/// PrintAndExit - Prints a message to standard error and exits with error code
|
||||
///
|
||||
/// Inputs:
|
||||
/// Message - The message to print to standard error.
|
||||
///
|
||||
static void PrintAndExit(const std::string &Message, Module *M, int errcode = 1) {
|
||||
errs() << progname << ": " << Message << "\n";
|
||||
delete M;
|
||||
llvm_shutdown();
|
||||
exit(errcode);
|
||||
}
|
||||
|
||||
static void PrintCommand(const std::vector<const char*> &args) {
|
||||
std::vector<const char*>::const_iterator I = args.begin(), E = args.end();
|
||||
for (; I != E; ++I)
|
||||
if (*I)
|
||||
errs() << "'" << *I << "'" << " ";
|
||||
errs() << "\n";
|
||||
}
|
||||
|
||||
/// CopyEnv - This function takes an array of environment variables and makes a
|
||||
/// copy of it. This copy can then be manipulated any way the caller likes
|
||||
/// without affecting the process's real environment.
|
||||
///
|
||||
/// Inputs:
|
||||
/// envp - An array of C strings containing an environment.
|
||||
///
|
||||
/// Return value:
|
||||
/// NULL - An error occurred.
|
||||
///
|
||||
/// Otherwise, a pointer to a new array of C strings is returned. Every string
|
||||
/// in the array is a duplicate of the one in the original array (i.e. we do
|
||||
/// not copy the char *'s from one array to another).
|
||||
///
|
||||
static char ** CopyEnv(char ** const envp) {
|
||||
// Count the number of entries in the old list;
|
||||
unsigned entries; // The number of entries in the old environment list
|
||||
for (entries = 0; envp[entries] != NULL; entries++)
|
||||
/*empty*/;
|
||||
|
||||
// Add one more entry for the NULL pointer that ends the list.
|
||||
++entries;
|
||||
|
||||
// If there are no entries at all, just return NULL.
|
||||
if (entries == 0)
|
||||
return NULL;
|
||||
|
||||
// Allocate a new environment list.
|
||||
char **newenv = new char* [entries];
|
||||
if (newenv == NULL)
|
||||
return NULL;
|
||||
|
||||
// Make a copy of the list. Don't forget the NULL that ends the list.
|
||||
entries = 0;
|
||||
while (envp[entries] != NULL) {
|
||||
size_t len = strlen(envp[entries]) + 1;
|
||||
newenv[entries] = new char[len];
|
||||
memcpy(newenv[entries], envp[entries], len);
|
||||
++entries;
|
||||
}
|
||||
newenv[entries] = NULL;
|
||||
|
||||
return newenv;
|
||||
}
|
||||
|
||||
|
||||
/// RemoveEnv - Remove the specified environment variable from the environment
|
||||
/// array.
|
||||
///
|
||||
/// Inputs:
|
||||
/// name - The name of the variable to remove. It cannot be NULL.
|
||||
/// envp - The array of environment variables. It cannot be NULL.
|
||||
///
|
||||
/// Notes:
|
||||
/// This is mainly done because functions to remove items from the environment
|
||||
/// are not available across all platforms. In particular, Solaris does not
|
||||
/// seem to have an unsetenv() function or a setenv() function (or they are
|
||||
/// undocumented if they do exist).
|
||||
///
|
||||
static void RemoveEnv(const char * name, char ** const envp) {
|
||||
for (unsigned index=0; envp[index] != NULL; index++) {
|
||||
// Find the first equals sign in the array and make it an EOS character.
|
||||
char *p = strchr (envp[index], '=');
|
||||
if (p == NULL)
|
||||
continue;
|
||||
else
|
||||
*p = '\0';
|
||||
|
||||
// Compare the two strings. If they are equal, zap this string.
|
||||
// Otherwise, restore it.
|
||||
if (!strcmp(name, envp[index]))
|
||||
*envp[index] = '\0';
|
||||
else
|
||||
*p = '=';
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
/// GenerateBitcode - generates a bitcode file from the module provided
|
||||
void GenerateBitcode(Module* M, const std::string& FileName) {
|
||||
|
||||
if (Verbose)
|
||||
errs() << "Generating Bitcode To " << FileName << '\n';
|
||||
|
||||
// Create the output file.
|
||||
std::string ErrorInfo;
|
||||
tool_output_file Out(FileName.c_str(), ErrorInfo,
|
||||
raw_fd_ostream::F_Binary);
|
||||
if (!ErrorInfo.empty()) {
|
||||
PrintAndExit(ErrorInfo, M);
|
||||
return;
|
||||
}
|
||||
|
||||
// Write it out
|
||||
WriteBitcodeToFile(M, Out.os());
|
||||
Out.keep();
|
||||
}
|
||||
|
||||
/// GenerateAssembly - generates a native assembly language source file from the
|
||||
/// specified bitcode file.
|
||||
///
|
||||
/// Inputs:
|
||||
/// InputFilename - The name of the input bitcode file.
|
||||
/// OutputFilename - The name of the file to generate.
|
||||
/// llc - The pathname to use for LLC.
|
||||
/// envp - The environment to use when running LLC.
|
||||
///
|
||||
/// Return non-zero value on error.
|
||||
///
|
||||
static int GenerateAssembly(const std::string &OutputFilename,
|
||||
const std::string &InputFilename,
|
||||
const sys::Path &llc,
|
||||
std::string &ErrMsg ) {
|
||||
// Run LLC to convert the bitcode file into assembly code.
|
||||
std::vector<const char*> args;
|
||||
args.push_back(llc.c_str());
|
||||
// We will use GCC to assemble the program so set the assembly syntax to AT&T,
|
||||
// regardless of what the target in the bitcode file is.
|
||||
args.push_back("-x86-asm-syntax=att");
|
||||
args.push_back("-o");
|
||||
args.push_back(OutputFilename.c_str());
|
||||
args.push_back(InputFilename.c_str());
|
||||
args.push_back(0);
|
||||
|
||||
if (Verbose) {
|
||||
errs() << "Generating Assembly With: \n";
|
||||
PrintCommand(args);
|
||||
}
|
||||
|
||||
return sys::Program::ExecuteAndWait(llc, &args[0], 0, 0, 0, 0, &ErrMsg);
|
||||
}
|
||||
|
||||
/// GenerateCFile - generates a C source file from the specified bitcode file.
|
||||
static int GenerateCFile(const std::string &OutputFile,
|
||||
const std::string &InputFile,
|
||||
const sys::Path &llc,
|
||||
std::string& ErrMsg) {
|
||||
// Run LLC to convert the bitcode file into C.
|
||||
std::vector<const char*> args;
|
||||
args.push_back(llc.c_str());
|
||||
args.push_back("-march=c");
|
||||
args.push_back("-o");
|
||||
args.push_back(OutputFile.c_str());
|
||||
args.push_back(InputFile.c_str());
|
||||
args.push_back(0);
|
||||
|
||||
if (Verbose) {
|
||||
errs() << "Generating C Source With: \n";
|
||||
PrintCommand(args);
|
||||
}
|
||||
|
||||
return sys::Program::ExecuteAndWait(llc, &args[0], 0, 0, 0, 0, &ErrMsg);
|
||||
}
|
||||
|
||||
/// GenerateNative - generates a native object file from the
|
||||
/// specified bitcode file.
|
||||
///
|
||||
/// Inputs:
|
||||
/// InputFilename - The name of the input bitcode file.
|
||||
/// OutputFilename - The name of the file to generate.
|
||||
/// NativeLinkItems - The native libraries, files, code with which to link
|
||||
/// LibPaths - The list of directories in which to find libraries.
|
||||
/// FrameworksPaths - The list of directories in which to find frameworks.
|
||||
/// Frameworks - The list of frameworks (dynamic libraries)
|
||||
/// gcc - The pathname to use for GGC.
|
||||
/// envp - A copy of the process's current environment.
|
||||
///
|
||||
/// Outputs:
|
||||
/// None.
|
||||
///
|
||||
/// Returns non-zero value on error.
|
||||
///
|
||||
static int GenerateNative(const std::string &OutputFilename,
|
||||
const std::string &InputFilename,
|
||||
const Linker::ItemList &LinkItems,
|
||||
const sys::Path &gcc, char ** const envp,
|
||||
std::string& ErrMsg) {
|
||||
// Remove these environment variables from the environment of the
|
||||
// programs that we will execute. It appears that GCC sets these
|
||||
// environment variables so that the programs it uses can configure
|
||||
// themselves identically.
|
||||
//
|
||||
// However, when we invoke GCC below, we want it to use its normal
|
||||
// configuration. Hence, we must sanitize its environment.
|
||||
char ** clean_env = CopyEnv(envp);
|
||||
if (clean_env == NULL)
|
||||
return 1;
|
||||
RemoveEnv("LIBRARY_PATH", clean_env);
|
||||
RemoveEnv("COLLECT_GCC_OPTIONS", clean_env);
|
||||
RemoveEnv("GCC_EXEC_PREFIX", clean_env);
|
||||
RemoveEnv("COMPILER_PATH", clean_env);
|
||||
RemoveEnv("COLLECT_GCC", clean_env);
|
||||
|
||||
|
||||
// Run GCC to assemble and link the program into native code.
|
||||
//
|
||||
// Note:
|
||||
// We can't just assemble and link the file with the system assembler
|
||||
// and linker because we don't know where to put the _start symbol.
|
||||
// GCC mysteriously knows how to do it.
|
||||
std::vector<std::string> args;
|
||||
args.push_back(gcc.c_str());
|
||||
args.push_back("-fno-strict-aliasing");
|
||||
args.push_back("-O3");
|
||||
args.push_back("-o");
|
||||
args.push_back(OutputFilename);
|
||||
args.push_back(InputFilename);
|
||||
|
||||
// Add in the library and framework paths
|
||||
for (unsigned index = 0; index < LibPaths.size(); index++) {
|
||||
args.push_back("-L" + LibPaths[index]);
|
||||
}
|
||||
for (unsigned index = 0; index < FrameworkPaths.size(); index++) {
|
||||
args.push_back("-F" + FrameworkPaths[index]);
|
||||
}
|
||||
|
||||
// Add the requested options
|
||||
for (unsigned index = 0; index < XLinker.size(); index++)
|
||||
args.push_back(XLinker[index]);
|
||||
|
||||
// Add in the libraries to link.
|
||||
for (unsigned index = 0; index < LinkItems.size(); index++)
|
||||
if (LinkItems[index].first != "crtend") {
|
||||
if (LinkItems[index].second)
|
||||
args.push_back("-l" + LinkItems[index].first);
|
||||
else
|
||||
args.push_back(LinkItems[index].first);
|
||||
}
|
||||
|
||||
// Add in frameworks to link.
|
||||
for (unsigned index = 0; index < Frameworks.size(); index++) {
|
||||
args.push_back("-framework");
|
||||
args.push_back(Frameworks[index]);
|
||||
}
|
||||
|
||||
// Now that "args" owns all the std::strings for the arguments, call the c_str
|
||||
// method to get the underlying string array. We do this game so that the
|
||||
// std::string array is guaranteed to outlive the const char* array.
|
||||
std::vector<const char *> Args;
|
||||
for (unsigned i = 0, e = args.size(); i != e; ++i)
|
||||
Args.push_back(args[i].c_str());
|
||||
Args.push_back(0);
|
||||
|
||||
if (Verbose) {
|
||||
errs() << "Generating Native Executable With:\n";
|
||||
PrintCommand(Args);
|
||||
}
|
||||
|
||||
// Run the compiler to assembly and link together the program.
|
||||
int R = sys::Program::ExecuteAndWait(
|
||||
gcc, &Args[0], const_cast<const char **>(clean_env), 0, 0, 0, &ErrMsg);
|
||||
delete [] clean_env;
|
||||
return R;
|
||||
}
|
||||
|
||||
/// EmitShellScript - Output the wrapper file that invokes the JIT on the LLVM
|
||||
/// bitcode file for the program.
|
||||
static void EmitShellScript(char **argv, Module *M) {
|
||||
if (Verbose)
|
||||
errs() << "Emitting Shell Script\n";
|
||||
#if defined(_WIN32)
|
||||
// Windows doesn't support #!/bin/sh style shell scripts in .exe files. To
|
||||
// support windows systems, we copy the llvm-stub.exe executable from the
|
||||
// build tree to the destination file.
|
||||
std::string ErrMsg;
|
||||
sys::Path llvmstub = PrependMainExecutablePath("llvm-stub", argv[0],
|
||||
(void *)(intptr_t)&Optimize);
|
||||
if (llvmstub.isEmpty())
|
||||
PrintAndExit("Could not find llvm-stub.exe executable!", M);
|
||||
|
||||
if (0 != sys::CopyFile(sys::Path(OutputFilename), llvmstub, &ErrMsg))
|
||||
PrintAndExit(ErrMsg, M);
|
||||
|
||||
return;
|
||||
#else
|
||||
|
||||
// Output the script to start the program...
|
||||
std::string ErrorInfo;
|
||||
tool_output_file Out2(OutputFilename.c_str(), ErrorInfo);
|
||||
if (!ErrorInfo.empty())
|
||||
PrintAndExit(ErrorInfo, M);
|
||||
|
||||
Out2.os() << "#!/bin/sh\n";
|
||||
// Allow user to setenv LLVMINTERP if lli is not in their PATH.
|
||||
Out2.os() << "lli=${LLVMINTERP-lli}\n";
|
||||
Out2.os() << "exec $lli \\\n";
|
||||
// gcc accepts -l<lib> and implicitly searches /lib and /usr/lib.
|
||||
LibPaths.push_back("/lib");
|
||||
LibPaths.push_back("/usr/lib");
|
||||
LibPaths.push_back("/usr/X11R6/lib");
|
||||
// We don't need to link in libc! In fact, /usr/lib/libc.so may not be a
|
||||
// shared object at all! See RH 8: plain text.
|
||||
std::vector<std::string>::iterator libc =
|
||||
std::find(Libraries.begin(), Libraries.end(), "c");
|
||||
if (libc != Libraries.end()) Libraries.erase(libc);
|
||||
// List all the shared object (native) libraries this executable will need
|
||||
// on the command line, so that we don't have to do this manually!
|
||||
for (std::vector<std::string>::iterator i = Libraries.begin(),
|
||||
e = Libraries.end(); i != e; ++i) {
|
||||
// try explicit -L arguments first:
|
||||
sys::Path FullLibraryPath;
|
||||
for (cl::list<std::string>::const_iterator P = LibPaths.begin(),
|
||||
E = LibPaths.end(); P != E; ++P) {
|
||||
FullLibraryPath = *P;
|
||||
FullLibraryPath.appendComponent("lib" + *i);
|
||||
FullLibraryPath.appendSuffix(sys::Path::GetDLLSuffix());
|
||||
if (!FullLibraryPath.isEmpty()) {
|
||||
if (!FullLibraryPath.isDynamicLibrary()) {
|
||||
// Not a native shared library; mark as invalid
|
||||
FullLibraryPath = sys::Path();
|
||||
} else break;
|
||||
}
|
||||
}
|
||||
if (FullLibraryPath.isEmpty())
|
||||
FullLibraryPath = sys::Path::FindLibrary(*i);
|
||||
if (!FullLibraryPath.isEmpty())
|
||||
Out2.os() << " -load=" << FullLibraryPath.str() << " \\\n";
|
||||
}
|
||||
Out2.os() << " " << BitcodeOutputFilename << " ${1+\"$@\"}\n";
|
||||
Out2.keep();
|
||||
#endif
|
||||
}
|
||||
|
||||
// BuildLinkItems -- This function generates a LinkItemList for the LinkItems
|
||||
// linker function by combining the Files and Libraries in the order they were
|
||||
// declared on the command line.
|
||||
static void BuildLinkItems(
|
||||
Linker::ItemList& Items,
|
||||
const cl::list<std::string>& Files,
|
||||
const cl::list<std::string>& Libraries) {
|
||||
|
||||
// Build the list of linkage items for LinkItems.
|
||||
|
||||
cl::list<std::string>::const_iterator fileIt = Files.begin();
|
||||
cl::list<std::string>::const_iterator libIt = Libraries.begin();
|
||||
|
||||
int libPos = -1, filePos = -1;
|
||||
while ( libIt != Libraries.end() || fileIt != Files.end() ) {
|
||||
if (libIt != Libraries.end())
|
||||
libPos = Libraries.getPosition(libIt - Libraries.begin());
|
||||
else
|
||||
libPos = -1;
|
||||
if (fileIt != Files.end())
|
||||
filePos = Files.getPosition(fileIt - Files.begin());
|
||||
else
|
||||
filePos = -1;
|
||||
|
||||
if (filePos != -1 && (libPos == -1 || filePos < libPos)) {
|
||||
// Add a source file
|
||||
Items.push_back(std::make_pair(*fileIt++, false));
|
||||
} else if (libPos != -1 && (filePos == -1 || libPos < filePos)) {
|
||||
// Add a library
|
||||
Items.push_back(std::make_pair(*libIt++, true));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char **argv, char **envp) {
|
||||
// Print a stack trace if we signal out.
|
||||
sys::PrintStackTraceOnErrorSignal();
|
||||
PrettyStackTraceProgram X(argc, argv);
|
||||
|
||||
LLVMContext &Context = getGlobalContext();
|
||||
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
|
||||
|
||||
// Initialize passes
|
||||
PassRegistry &Registry = *PassRegistry::getPassRegistry();
|
||||
initializeCore(Registry);
|
||||
initializeScalarOpts(Registry);
|
||||
initializeIPO(Registry);
|
||||
initializeAnalysis(Registry);
|
||||
initializeIPA(Registry);
|
||||
initializeTransformUtils(Registry);
|
||||
initializeInstCombine(Registry);
|
||||
initializeTarget(Registry);
|
||||
|
||||
// Initial global variable above for convenience printing of program name.
|
||||
progname = sys::path::stem(argv[0]);
|
||||
|
||||
// Parse the command line options
|
||||
cl::ParseCommandLineOptions(argc, argv, "llvm linker\n");
|
||||
|
||||
#if defined(_WIN32) || defined(__CYGWIN__)
|
||||
if (!LinkAsLibrary) {
|
||||
// Default to "a.exe" instead of "a.out".
|
||||
if (OutputFilename.getNumOccurrences() == 0)
|
||||
OutputFilename = "a.exe";
|
||||
|
||||
// If there is no suffix add an "exe" one.
|
||||
if (sys::path::extension(OutputFilename).empty())
|
||||
OutputFilename.append(".exe");
|
||||
}
|
||||
#endif
|
||||
|
||||
// Generate the bitcode for the optimized module.
|
||||
// If -b wasn't specified, use the name specified
|
||||
// with -o to construct BitcodeOutputFilename.
|
||||
if (BitcodeOutputFilename.empty()) {
|
||||
BitcodeOutputFilename = OutputFilename;
|
||||
if (!LinkAsLibrary) BitcodeOutputFilename += ".bc";
|
||||
}
|
||||
|
||||
// Arrange for the bitcode output file to be deleted on any errors.
|
||||
BitcodeOutputRemover.setFile(BitcodeOutputFilename);
|
||||
sys::RemoveFileOnSignal(sys::Path(BitcodeOutputFilename));
|
||||
|
||||
// Arrange for the output file to be deleted on any errors.
|
||||
if (!LinkAsLibrary) {
|
||||
OutputRemover.setFile(OutputFilename);
|
||||
sys::RemoveFileOnSignal(sys::Path(OutputFilename));
|
||||
}
|
||||
|
||||
// Construct a Linker (now that Verbose is set)
|
||||
Linker TheLinker(progname, OutputFilename, Context, Verbose);
|
||||
|
||||
// Keep track of the native link items (versus the bitcode items)
|
||||
Linker::ItemList NativeLinkItems;
|
||||
|
||||
// Add library paths to the linker
|
||||
TheLinker.addPaths(LibPaths);
|
||||
TheLinker.addSystemPaths();
|
||||
|
||||
// Remove any consecutive duplicates of the same library...
|
||||
Libraries.erase(std::unique(Libraries.begin(), Libraries.end()),
|
||||
Libraries.end());
|
||||
|
||||
if (LinkAsLibrary) {
|
||||
std::vector<sys::Path> Files;
|
||||
for (unsigned i = 0; i < InputFilenames.size(); ++i )
|
||||
Files.push_back(sys::Path(InputFilenames[i]));
|
||||
if (TheLinker.LinkInFiles(Files))
|
||||
return 1; // Error already printed
|
||||
|
||||
// The libraries aren't linked in but are noted as "dependent" in the
|
||||
// module.
|
||||
for (cl::list<std::string>::const_iterator I = Libraries.begin(),
|
||||
E = Libraries.end(); I != E ; ++I) {
|
||||
TheLinker.getModule()->addLibrary(*I);
|
||||
}
|
||||
} else {
|
||||
// Build a list of the items from our command line
|
||||
Linker::ItemList Items;
|
||||
BuildLinkItems(Items, InputFilenames, Libraries);
|
||||
|
||||
// Link all the items together
|
||||
if (TheLinker.LinkInItems(Items, NativeLinkItems) )
|
||||
return 1; // Error already printed
|
||||
}
|
||||
|
||||
std::auto_ptr<Module> Composite(TheLinker.releaseModule());
|
||||
|
||||
// Optimize the module
|
||||
Optimize(Composite.get());
|
||||
|
||||
// Generate the bitcode output.
|
||||
GenerateBitcode(Composite.get(), BitcodeOutputFilename);
|
||||
|
||||
// If we are not linking a library, generate either a native executable
|
||||
// or a JIT shell script, depending upon what the user wants.
|
||||
if (!LinkAsLibrary) {
|
||||
// If the user wants to run a post-link optimization, run it now.
|
||||
if (!PostLinkOpts.empty()) {
|
||||
std::vector<std::string> opts = PostLinkOpts;
|
||||
for (std::vector<std::string>::iterator I = opts.begin(),
|
||||
E = opts.end(); I != E; ++I) {
|
||||
sys::Path prog(*I);
|
||||
if (!prog.canExecute()) {
|
||||
prog = sys::Program::FindProgramByName(*I);
|
||||
if (prog.isEmpty())
|
||||
PrintAndExit(std::string("Optimization program '") + *I +
|
||||
"' is not found or not executable.", Composite.get());
|
||||
}
|
||||
// Get the program arguments
|
||||
sys::Path tmp_output("opt_result");
|
||||
std::string ErrMsg;
|
||||
if (tmp_output.createTemporaryFileOnDisk(true, &ErrMsg))
|
||||
PrintAndExit(ErrMsg, Composite.get());
|
||||
|
||||
const char* args[4];
|
||||
args[0] = I->c_str();
|
||||
args[1] = BitcodeOutputFilename.c_str();
|
||||
args[2] = tmp_output.c_str();
|
||||
args[3] = 0;
|
||||
if (0 == sys::Program::ExecuteAndWait(prog, args, 0,0,0,0, &ErrMsg)) {
|
||||
if (tmp_output.isBitcodeFile()) {
|
||||
sys::Path target(BitcodeOutputFilename);
|
||||
target.eraseFromDisk();
|
||||
if (tmp_output.renamePathOnDisk(target, &ErrMsg))
|
||||
PrintAndExit(ErrMsg, Composite.get(), 2);
|
||||
} else
|
||||
PrintAndExit("Post-link optimization output is not bitcode",
|
||||
Composite.get());
|
||||
} else {
|
||||
PrintAndExit(ErrMsg, Composite.get());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// If the user wants to generate a native executable, compile it from the
|
||||
// bitcode file.
|
||||
//
|
||||
// Otherwise, create a script that will run the bitcode through the JIT.
|
||||
if (Native) {
|
||||
// Name of the Assembly Language output file
|
||||
sys::Path AssemblyFile ( OutputFilename);
|
||||
AssemblyFile.appendSuffix("s");
|
||||
|
||||
// Mark the output files for removal.
|
||||
FileRemover AssemblyFileRemover(AssemblyFile.str());
|
||||
sys::RemoveFileOnSignal(AssemblyFile);
|
||||
|
||||
// Determine the locations of the llc and gcc programs.
|
||||
sys::Path llc = PrependMainExecutablePath("llc", argv[0],
|
||||
(void *)(intptr_t)&Optimize);
|
||||
if (llc.isEmpty())
|
||||
PrintAndExit("Failed to find llc", Composite.get());
|
||||
|
||||
sys::Path gcc = sys::Program::FindProgramByName("gcc");
|
||||
if (gcc.isEmpty())
|
||||
PrintAndExit("Failed to find gcc", Composite.get());
|
||||
|
||||
// Generate an assembly language file for the bitcode.
|
||||
std::string ErrMsg;
|
||||
if (0 != GenerateAssembly(AssemblyFile.str(), BitcodeOutputFilename,
|
||||
llc, ErrMsg))
|
||||
PrintAndExit(ErrMsg, Composite.get());
|
||||
|
||||
if (0 != GenerateNative(OutputFilename, AssemblyFile.str(),
|
||||
NativeLinkItems, gcc, envp, ErrMsg))
|
||||
PrintAndExit(ErrMsg, Composite.get());
|
||||
} else if (NativeCBE) {
|
||||
sys::Path CFile (OutputFilename);
|
||||
CFile.appendSuffix("cbe.c");
|
||||
|
||||
// Mark the output files for removal.
|
||||
FileRemover CFileRemover(CFile.str());
|
||||
sys::RemoveFileOnSignal(CFile);
|
||||
|
||||
// Determine the locations of the llc and gcc programs.
|
||||
sys::Path llc = PrependMainExecutablePath("llc", argv[0],
|
||||
(void *)(intptr_t)&Optimize);
|
||||
if (llc.isEmpty())
|
||||
PrintAndExit("Failed to find llc", Composite.get());
|
||||
|
||||
sys::Path gcc = sys::Program::FindProgramByName("gcc");
|
||||
if (gcc.isEmpty())
|
||||
PrintAndExit("Failed to find gcc", Composite.get());
|
||||
|
||||
// Generate an assembly language file for the bitcode.
|
||||
std::string ErrMsg;
|
||||
if (GenerateCFile(CFile.str(), BitcodeOutputFilename, llc, ErrMsg))
|
||||
PrintAndExit(ErrMsg, Composite.get());
|
||||
|
||||
if (GenerateNative(OutputFilename, CFile.str(),
|
||||
NativeLinkItems, gcc, envp, ErrMsg))
|
||||
PrintAndExit(ErrMsg, Composite.get());
|
||||
} else {
|
||||
EmitShellScript(argv, Composite.get());
|
||||
}
|
||||
|
||||
// Make the script executable...
|
||||
std::string ErrMsg;
|
||||
if (sys::Path(OutputFilename).makeExecutableOnDisk(&ErrMsg))
|
||||
PrintAndExit(ErrMsg, Composite.get());
|
||||
|
||||
// Make the bitcode file readable and directly executable in LLEE as well
|
||||
if (sys::Path(BitcodeOutputFilename).makeExecutableOnDisk(&ErrMsg))
|
||||
PrintAndExit(ErrMsg, Composite.get());
|
||||
|
||||
if (sys::Path(BitcodeOutputFilename).makeReadableOnDisk(&ErrMsg))
|
||||
PrintAndExit(ErrMsg, Composite.get());
|
||||
}
|
||||
|
||||
// Operations which may fail are now complete.
|
||||
BitcodeOutputRemover.releaseFile();
|
||||
if (!LinkAsLibrary)
|
||||
OutputRemover.releaseFile();
|
||||
|
||||
// Graceful exit
|
||||
return 0;
|
||||
}
|
||||
@ -1,3 +0,0 @@
|
||||
add_llvm_tool(llvm-stub
|
||||
llvm-stub.c
|
||||
)
|
||||
@ -1,22 +0,0 @@
|
||||
;===- ./tools/llvm-stub/LLVMBuild.txt --------------------------*- Conf -*--===;
|
||||
;
|
||||
; The LLVM Compiler Infrastructure
|
||||
;
|
||||
; This file is distributed under the University of Illinois Open Source
|
||||
; License. See LICENSE.TXT for details.
|
||||
;
|
||||
;===------------------------------------------------------------------------===;
|
||||
;
|
||||
; This is an LLVMBuild description file for the components in this subdirectory.
|
||||
;
|
||||
; For more information on the LLVMBuild system, please see:
|
||||
;
|
||||
; http://llvm.org/docs/LLVMBuild.html
|
||||
;
|
||||
;===------------------------------------------------------------------------===;
|
||||
|
||||
[component_0]
|
||||
type = Tool
|
||||
name = llvm-stub
|
||||
parent = Tools
|
||||
required_libraries =
|
||||
@ -1,15 +0,0 @@
|
||||
##===- tools/llvm-stub/Makefile ----------------------------*- Makefile -*-===##
|
||||
#
|
||||
# The LLVM Compiler Infrastructure
|
||||
#
|
||||
# This file is distributed under the University of Illinois Open Source
|
||||
# License. See LICENSE.TXT for details.
|
||||
#
|
||||
##===----------------------------------------------------------------------===##
|
||||
|
||||
LEVEL := ../..
|
||||
TOOLNAME := llvm-stub
|
||||
LINK_COMPONENTS := object
|
||||
|
||||
include $(LEVEL)/Makefile.common
|
||||
|
||||
@ -1,77 +0,0 @@
|
||||
/*===- llvm-stub.c - Stub executable to run llvm bitcode files ------------===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This tool is used by the gccld program to enable transparent execution of
|
||||
// bitcode files by the user. Specifically, gccld outputs two files when asked
|
||||
// to compile a <program> file:
|
||||
// 1. It outputs the LLVM bitcode file to <program>.bc
|
||||
// 2. It outputs a stub executable that runs lli on <program>.bc
|
||||
//
|
||||
// This allows the end user to just say ./<program> and have the JIT executed
|
||||
// automatically. On unix, the stub executable emitted is actually a bourne
|
||||
// shell script that does the forwarding. Windows does not like #!/bin/sh
|
||||
// programs in .exe files, so we make it an actual program, defined here.
|
||||
//
|
||||
//===----------------------------------------------------------------------===*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "llvm/Config/config.h"
|
||||
|
||||
#if defined(HAVE_UNISTD_H) && !defined(_MSC_VER)
|
||||
#include <unistd.h>
|
||||
#endif
|
||||
|
||||
#ifdef _WIN32
|
||||
#include <process.h>
|
||||
#include <io.h>
|
||||
#endif
|
||||
|
||||
int main(int argc, char** argv) {
|
||||
const char *Interp = getenv("LLVMINTERP");
|
||||
const char **Args;
|
||||
if (Interp == 0) Interp = "lli";
|
||||
|
||||
/* Set up the command line options to pass to the JIT. */
|
||||
Args = (const char**)malloc(sizeof(char*) * (argc+2));
|
||||
/* argv[0] is the JIT */
|
||||
Args[0] = Interp;
|
||||
|
||||
#ifdef LLVM_ON_WIN32
|
||||
{
|
||||
int len = strlen(argv[0]);
|
||||
if (len < 4 || strcmp(argv[0] + len - 4, ".exe") != 0) {
|
||||
/* .exe suffix is stripped off of argv[0] if the executable was run on the
|
||||
* command line without one. Put it back on.
|
||||
*/
|
||||
argv[0] = strcat(strcpy((char*)malloc(len + 5), argv[0]), ".exe");
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/* argv[1] is argv[0] + ".bc". */
|
||||
Args[1] = strcat(strcpy((char*)malloc(strlen(argv[0])+4), argv[0]), ".bc");
|
||||
|
||||
/* The rest of the args are as before. */
|
||||
memcpy((char **)Args+2, argv+1, sizeof(char*)*argc);
|
||||
|
||||
/* Run the JIT. */
|
||||
#if !defined(_WIN32) || defined(__MINGW64__)
|
||||
execvp(Interp, (char **)Args); /* POSIX execvp takes a char *const[]. */
|
||||
#else
|
||||
execvp(Interp, Args); /* windows execvp takes a const char *const *. */
|
||||
#endif
|
||||
/* if _execv returns, the JIT could not be started. */
|
||||
fprintf(stderr, "Could not execute the LLVM JIT. Either add 'lli' to your"
|
||||
" path, or set the\ninterpreter you want to use in the LLVMINTERP "
|
||||
"environment variable.\n");
|
||||
return 1;
|
||||
}
|
||||
@ -76,8 +76,7 @@ echo " Optimized program: $optprog"
|
||||
# Define the list of optimizations to run. This comprises the same set of
|
||||
# optimizations that opt -std-compile-opts and gccld run, in the same order.
|
||||
opt_switches=`llvm-as < /dev/null -o - | opt -std-compile-opts -disable-output -debug-pass=Arguments 2>&1 | sed 's/Pass Arguments: //'`
|
||||
ld_switches=`llvm-as < /dev/null -o - | llvm-ld - -debug-pass=Arguments 2>&1 | sed 's/Pass Arguments: //'`
|
||||
all_switches="$opt_switches $ld_switches"
|
||||
all_switches="$opt_switches"
|
||||
echo "Passes : $all_switches"
|
||||
|
||||
# Create output directory if it doesn't exist
|
||||
|
||||
Loading…
Reference in New Issue
Block a user