Unfortunately, the error reporting isn't very good when LLVM tries to load a library (inside the JIT) and fails.
This is probably worth reporting as a bug. I'm not sure offhand and actually investigating this currently requires digging in to what is actually happening under the covers between the Swift importer and the LLVM JIT.
- Daniel
···
On May 25, 2016, at 12:38 PM, bhargav gurlanka via swift-build-dev <swift-build-dev@swift.org> wrote:
Hi,
I have a swift package with following layout:
.
├── Package.swift
├── Sources
│ ├── BarCModule
│ │ ├── Bar.c
│ │ └── include
│ │ └── Bar.h
│ └── MyApp
│ └── main.swift
└── Tests
After running swift build, I can see libBarCModule.so under .build/debug. How can I use this library in REPL?
I've tried:
$ swift -I.build/debug -L.build/debug -lBarCModule
$ LD_LIBRARY_PATH=.build/debug swift -I.build/debug -L.build/debug -lBarCModule
But in both cases, I couldn't call a function defined inside my C Module.
I got this working by generating dylib for the C source
Steps:
$ cd Fixtures/ClangModules/CLibrarySources/Sources
$ swift build
$ cp ../.build/debug/CLibrarySources.build/module.modulemap . #copy the
module map
$ clang -dynamiclib -std=gnu99 Foo.c -current_version 1.0
-compatibility_version 1.0 -fvisibility=hidden -o libFoo.dylib
$ swift -I include -L. -lFoo
1> import CLibrarySources
2> foo()
$R0: Int32 = 5
···
On Thu, May 26, 2016 at 1:13 AM, Daniel Dunbar via swift-build-dev < swift-build-dev@swift.org> wrote:
Unfortunately, the error reporting isn't very good when LLVM tries to load
a library (inside the JIT) and fails.
This is probably worth reporting as a bug. I'm not sure offhand and
actually investigating this currently requires digging in to what is
actually happening under the covers between the Swift importer and the LLVM
JIT.
- Daniel
On May 25, 2016, at 12:38 PM, bhargav gurlanka via swift-build-dev < > swift-build-dev@swift.org> wrote:
Hi,
I have a swift package with following layout:
.
├── Package.swift
├── Sources
│ ├── BarCModule
│ │ ├── Bar.c
│ │ └── include
│ │ └── Bar.h
│ └── MyApp
│ └── main.swift
└── Tests
After running swift build, I can see libBarCModule.so under .build/debug.
How can I use this library in REPL?
I've tried:
$ swift -I.build/debug -L.build/debug -lBarCModule
$ LD_LIBRARY_PATH=.build/debug swift -I.build/debug -L.build/debug
-lBarCModule
But in both cases, I couldn't call a function defined inside my C Module.
$ cd Fixtures/ClangModules/CLibrarySources/Sources
$ swift build
$ cp ../.build/debug/CLibrarySources.build/module.modulemap . #copy the
module map
$ clang -dynamiclib -std=gnu99 Foo.c -current_version 1.0
-compatibility_version 1.0 -fvisibility=hidden -o libFoo.dylib
$ swift -I include -L. -lFoo
1> import CLibrarySources
2> foo()
$R0: Int32 = 5
On Thu, May 26, 2016 at 1:13 AM, Daniel Dunbar via swift-build-dev < > swift-build-dev@swift.org> wrote:
Unfortunately, the error reporting isn't very good when LLVM tries to
load a library (inside the JIT) and fails.
This is probably worth reporting as a bug. I'm not sure offhand and
actually investigating this currently requires digging in to what is
actually happening under the covers between the Swift importer and the LLVM
JIT.
- Daniel
On May 25, 2016, at 12:38 PM, bhargav gurlanka via swift-build-dev < >> swift-build-dev@swift.org> wrote:
Hi,
I have a swift package with following layout:
.
├── Package.swift
├── Sources
│ ├── BarCModule
│ │ ├── Bar.c
│ │ └── include
│ │ └── Bar.h
│ └── MyApp
│ └── main.swift
└── Tests
After running swift build, I can see libBarCModule.so under .build/debug.
How can I use this library in REPL?
I've tried:
$ swift -I.build/debug -L.build/debug -lBarCModule
$ LD_LIBRARY_PATH=.build/debug swift -I.build/debug -L.build/debug
-lBarCModule
But in both cases, I couldn't call a function defined inside my C Module.