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Introducing llvm-libtool-darwin

Browse Source 
This diff starts the implementation of llvm-libtool-darwin
(an llvm based replacement of cctool's libtool).
Libtool is used for creating static and dynamic libraries
from a bunch of object files given as input.

Reviewed by alexshap, smeenai, jhenderson, MaskRay

Differential Revision: https://reviews.llvm.org/D82923
This commit is contained in:
Sameer Arora 2020-07-01 14:41:07 -07:00
parent 02ac158b95
commit 4336e89619
11 changed files with 304 additions and 11 deletions
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23
docs/CommandGuide/index.rst
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@ -14,25 +14,26 @@ Basic Commands
.. toctree::
:maxdepth: 1
llvm-as
llvm-dis
opt
dsymutil
llc
lli
llvm-link
llvm-lib
llvm-lipo
llvm-as
llvm-config
llvm-cov
llvm-cxxmap
llvm-diff
llvm-cov
llvm-dis
llvm-dwarfdump
llvm-lib
llvm-libtool-darwin
llvm-link
llvm-lipo
llvm-mca
llvm-profdata
llvm-readobj
llvm-stress
llvm-symbolizer
llvm-dwarfdump
dsymutil
llvm-mca
llvm-readobj
opt
GNU binutils replacements
~~~~~~~~~~~~~~~~~~~~~~~~~

59
docs/CommandGuide/llvm-libtool-darwin.rst Normal file
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@ -0,0 +1,59 @@
llvm-libtool-darwin - LLVM tool for creating libraries for Darwin
=================================================================
.. program:: llvm-libtool-darwin
SYNOPSIS
--------
:program:`llvm-libtool-darwin` [*options*] *<input files>*
DESCRIPTION
-----------
:program:`llvm-libtool-darwin` is a tool for creating static and dynamic
libraries for Darwin.
For most scenarios, it works as a drop-in replacement for cctools'
:program:`libtool`.
OPTIONS
--------
:program:`llvm-libtool-darwin` supports the following options:
.. option:: -h, -help
Show help and usage for this command.
.. option:: -help-list
Show help and usage for this command without grouping the options
into categories.
.. option:: -color
Use colors in output.
.. option:: -version
Display the version of this program.
.. option:: -o <filename>
Specify the output file name. Must be specified exactly once.
EXIT STATUS
-----------
:program:`llvm-libtool-darwin` exits with a non-zero exit code if there is an error.
Otherwise, it exits with code 0.
BUGS
----
To report bugs, please visit <https://bugs.llvm.org/>.
SEE ALSO
--------
:manpage:`llvm-ar(1)`

1
test/CMakeLists.txt
View File

@ -83,6 +83,7 @@ set(LLVM_TEST_DEPENDS
llvm-install-name-tool
llvm-jitlink
llvm-lib
llvm-libtool-darwin
llvm-link
llvm-lipo
llvm-locstats

56
test/tools/llvm-libtool-darwin/Inputs/input1.yaml Normal file
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@ -0,0 +1,56 @@
# int symbol1() {
# return 0;
# }
--- !mach-o
FileHeader:
magic: 0xFEEDFACF
cputype: 0x01000007
cpusubtype: 0x00000003
filetype: 0x00000001
ncmds: 2
sizeofcmds: 176
flags: 0x00002000
reserved: 0x00000000
LoadCommands:
- cmd: LC_SEGMENT_64
cmdsize: 152
segname: ''
vmaddr: 0
vmsize: 8
fileoff: 312
filesize: 8
maxprot: 7
initprot: 7
nsects: 1
flags: 0
Sections:
- sectname: __text
segname: __TEXT
addr: 0x0000000000000000
size: 8
offset: 0x00000138
align: 4
reloff: 0x00000000
nreloc: 0
flags: 0x80000400
reserved1: 0x00000000
reserved2: 0x00000000
reserved3: 0x00000000
content: 554889E531C05DC3
- cmd: LC_SYMTAB
cmdsize: 24
symoff: 320
nsyms: 1
stroff: 336
strsize: 8
LinkEditData:
NameList:
- n_strx: 1
n_type: 0x0F
n_sect: 1
n_desc: 0
n_value: 0
StringTable:
- ''
- _symbol1
...

57
test/tools/llvm-libtool-darwin/Inputs/input2.yaml Normal file
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@ -0,0 +1,57 @@
# int symbol2() {
# return 0;
# }
--- !mach-o
FileHeader:
magic: 0xFEEDFACF
cputype: 0x01000007
cpusubtype: 0x00000003
filetype: 0x00000001
ncmds: 2
sizeofcmds: 176
flags: 0x00002000
reserved: 0x00000000
LoadCommands:
- cmd: LC_SEGMENT_64
cmdsize: 152
segname: ''
vmaddr: 0
vmsize: 15
fileoff: 312
filesize: 15
maxprot: 7
initprot: 7
nsects: 1
flags: 0
Sections:
- sectname: __text
segname: __TEXT
addr: 0x0000000000000000
size: 15
offset: 0x00000138
align: 4
reloff: 0x00000000
nreloc: 0
flags: 0x80000400
reserved1: 0x00000000
reserved2: 0x00000000
reserved3: 0x00000000
content: 554889E531C0C745FC000000005DC3
- cmd: LC_SYMTAB
cmdsize: 24
symoff: 328
nsyms: 1
stroff: 344
strsize: 8
LinkEditData:
NameList:
- n_strx: 1
n_type: 0x0F
n_sect: 1
n_desc: 0
n_value: 0
StringTable:
- ''
- _symbol2
- ''
...

10
test/tools/llvm-libtool-darwin/basic.test Normal file
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@ -0,0 +1,10 @@
## This test checks that main exits normally (error code 0) for correct input/output args.
# RUN: yaml2obj %S/Inputs/input1.yaml -o %t-input1.o
# RUN: yaml2obj %S/Inputs/input2.yaml -o %t-input2.o
## Pass single input:
# RUN: llvm-libtool-darwin -o %t.lib %t-input1.o
## Pass multiple inputs:
# RUN: llvm-libtool-darwin -o %t.lib %t-input1.o %t-input2.o

23
test/tools/llvm-libtool-darwin/help-message.test Normal file
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@ -0,0 +1,23 @@
## This test checks that the help message is displayed correctly.
# RUN: llvm-libtool-darwin -h | FileCheck --check-prefixes=LIBTOOL-USAGE,CATEG %s --match-full-lines
# RUN: llvm-libtool-darwin -help | FileCheck --check-prefixes=LIBTOOL-USAGE,CATEG %s --match-full-lines
# RUN: llvm-libtool-darwin --help | FileCheck --check-prefixes=LIBTOOL-USAGE,CATEG %s --match-full-lines
# RUN: llvm-libtool-darwin --help-list | \
# RUN: FileCheck -check-prefixes=LIBTOOL-USAGE,LIST %s --match-full-lines
# RUN: not llvm-libtool-darwin -abcabc 2>&1 | FileCheck --check-prefix=UNKNOWN-ARG %s
# RUN: not llvm-libtool-darwin --abcabc 2>&1 | FileCheck --check-prefix=UNKNOWN-ARG %s
# LIBTOOL-USAGE: OVERVIEW: llvm-libtool-darwin
# LIBTOOL-USAGE: USAGE: llvm-libtool-darwin{{(\.exe)?}} [options] <input files>
# LIBTOOL-USAGE: OPTIONS:
# CATEG: Color Options:
# LIST-NOT: Color Options:
# CATEG: Generic Options:
# LIST-NOT: Generic Options:
# CATEG: llvm-libtool-darwin Options:
# LIST-NOT: llvm-libtool-darwin Options:
# UNKNOWN-ARG: Unknown command line argument '{{-+}}abcabc'

25
test/tools/llvm-libtool-darwin/invalid-input-output-args.test Normal file
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@ -0,0 +1,25 @@
## This test checks that an error is thrown in case of invalid input/output args.
## Missing input file:
# RUN: not llvm-libtool-darwin -o %t.lib 2>&1 | \
# RUN: FileCheck %s --check-prefix=NO-INPUT
# NO-INPUT: Must specify at least 1 positional argument
## Missing output file:
# RUN: not llvm-libtool-darwin %t.input 2>&1 | \
# RUN: FileCheck %s --check-prefix=NO-OUTPUT
# NO-OUTPUT: for the -o option: must be specified at least once!
## Missing argument to -o:
# RUN: not llvm-libtool-darwin %t.input -o 2>&1 | \
# RUN: FileCheck %s --check-prefix=MISSING
# MISSING: for the -o option: requires a value!
## Passing in two output files:
# RUN: not llvm-libtool-darwin %t.input -o %t.lib1 -o %t.lib2 2>&1 | \
# RUN: FileCheck %s --check-prefix=DOUBLE-OUTPUT
# DOUBLE-OUTPUT: for the -o option: must occur exactly one time!

7
tools/llvm-libtool-darwin/CMakeLists.txt Normal file
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@ -0,0 +1,7 @@
set(LLVM_LINK_COMPONENTS
Support
)
add_llvm_tool(llvm-libtool-darwin
llvm-libtool-darwin.cpp
)

20
tools/llvm-libtool-darwin/LLVMBuild.txt Normal file
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@ -0,0 +1,20 @@
;===- ./tools/llvm-libtool-darwin/LVMBuild.txt -----------------*- Conf -*--===;
;
; Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
; See https://llvm.org/LICENSE.txt for license information.
; SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
;
;===------------------------------------------------------------------------===;
;
; 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-libtool-darwin
parent = Tools
required_libraries = Support

34
tools/llvm-libtool-darwin/llvm-libtool-darwin.cpp Normal file
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@ -0,0 +1,34 @@
//===-- llvm-libtool-darwin.cpp - a tool for creating libraries -----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// A utility for creating static and dynamic libraries for Darwin.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/WithColor.h"
using namespace llvm;
cl::OptionCategory LibtoolCategory("llvm-libtool-darwin Options");
static cl::opt<std::string> OutputFile("o", cl::desc("Specify output filename"),
cl::value_desc("filename"), cl::Required,
cl::cat(LibtoolCategory));
static cl::list<std::string> InputFiles(cl::Positional,
cl::desc("<input files>"),
cl::OneOrMore,
cl::cat(LibtoolCategory));
int main(int Argc, char **Argv) {
InitLLVM X(Argc, Argv);
cl::HideUnrelatedOptions({&LibtoolCategory, &ColorCategory});
cl::ParseCommandLineOptions(Argc, Argv, "llvm-libtool-darwin\n");
}