diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt index f7e08ec151d077..ad0e1308117215 100644 --- a/libc/config/linux/aarch64/entrypoints.txt +++ b/libc/config/linux/aarch64/entrypoints.txt @@ -17,6 +17,12 @@ set(TARGET_LIBC_ENTRYPOINTS libc.src.ctype.tolower libc.src.ctype.toupper + # dlfcn.h entrypoints + libc.src.dlfcn.dlclose + libc.src.dlfcn.dlerror + libc.src.dlfcn.dlopen + libc.src.dlfcn.dlsym + # errno.h entrypoints libc.src.errno.errno diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt index 09f04fb31dfd82..04cb83f2523906 100644 --- a/libc/config/linux/x86_64/entrypoints.txt +++ b/libc/config/linux/x86_64/entrypoints.txt @@ -17,6 +17,12 @@ set(TARGET_LIBC_ENTRYPOINTS libc.src.ctype.tolower libc.src.ctype.toupper + # dlfcn.h entrypoints + libc.src.dlfcn.dlclose + libc.src.dlfcn.dlerror + libc.src.dlfcn.dlopen + libc.src.dlfcn.dlsym + # errno.h entrypoints libc.src.errno.errno diff --git a/libc/spec/posix.td b/libc/spec/posix.td index d14047548e104f..1878b1ee2ae412 100644 --- a/libc/spec/posix.td +++ b/libc/spec/posix.td @@ -222,6 +222,40 @@ def POSIX : StandardSpec<"POSIX"> { [] // Functions >; + HeaderSpec DlFcn = HeaderSpec< + "dlfcn.h", + [ + Macro<"RTLD_LAZY">, + Macro<"RTLD_NOW">, + Macro<"RTLD_GLOBAL">, + Macro<"RTLD_LOCAL">, + ], + [], // Types + [], // Enumerations + [ + FunctionSpec< + "dlclose", + RetValSpec, + [ArgSpec] + >, + FunctionSpec< + "dlerror", + RetValSpec, + [] + >, + FunctionSpec< + "dlopen", + RetValSpec, + [ArgSpec, ArgSpec] + >, + FunctionSpec< + "dlsym", + RetValSpec, + [ArgSpec, ArgSpec] + >, + ] + >; + HeaderSpec FCntl = HeaderSpec< "fcntl.h", [], // Macros @@ -1690,6 +1724,7 @@ def POSIX : StandardSpec<"POSIX"> { ArpaInet, CType, Dirent, + DlFcn, Errno, FCntl, PThread, diff --git a/libc/src/CMakeLists.txt b/libc/src/CMakeLists.txt index 09b16be1e2d42e..9597e2380172b5 100644 --- a/libc/src/CMakeLists.txt +++ b/libc/src/CMakeLists.txt @@ -1,6 +1,7 @@ add_subdirectory(__support) add_subdirectory(ctype) +add_subdirectory(dlfcn) add_subdirectory(errno) add_subdirectory(fenv) add_subdirectory(inttypes) diff --git a/libc/src/dlfcn/CMakeLists.txt b/libc/src/dlfcn/CMakeLists.txt new file mode 100644 index 00000000000000..e3a51ba65764d4 --- /dev/null +++ b/libc/src/dlfcn/CMakeLists.txt @@ -0,0 +1,40 @@ +add_entrypoint_object( + dlclose + SRCS + dlclose.cpp + HDRS + dlclose.h +) + +add_entrypoint_object( + dlerror + SRCS + dlerror.cpp + HDRS + dlerror.h + DEPENDS + libc.include.dlfcn + libc.src.errno.errno +) + +add_entrypoint_object( + dlopen + SRCS + dlopen.cpp + HDRS + dlopen.h + DEPENDS + libc.include.dlfcn + libc.src.errno.errno +) + +add_entrypoint_object( + dlsym + SRCS + dlsym.cpp + HDRS + dlsym.h + DEPENDS + libc.include.dlfcn + libc.src.errno.errno +) diff --git a/libc/src/dlfcn/dlclose.cpp b/libc/src/dlfcn/dlclose.cpp new file mode 100644 index 00000000000000..6dc1892120dddb --- /dev/null +++ b/libc/src/dlfcn/dlclose.cpp @@ -0,0 +1,17 @@ +//===-- Implementation of dlclose -----------------------------------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#include "dlclose.h" + +#include "src/__support/common.h" + +namespace LIBC_NAMESPACE { + +LLVM_LIBC_FUNCTION(int, dlclose, (void *)) { return -1; } + +} // namespace LIBC_NAMESPACE diff --git a/libc/src/dlfcn/dlclose.h b/libc/src/dlfcn/dlclose.h new file mode 100644 index 00000000000000..27c0207d726e49 --- /dev/null +++ b/libc/src/dlfcn/dlclose.h @@ -0,0 +1,18 @@ +//===-- Implementation header of dlclose ------------------------*- C++ -*-===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIBC_SRC_DLFCN_DLCLOSE_H +#define LLVM_LIBC_SRC_DLFCN_DLCLOSE_H + +namespace LIBC_NAMESPACE { + +int dlclose(void *); + +} // namespace LIBC_NAMESPACE + +#endif // LLVM_LIBC_SRC_DLFCN_DLCLOSE_H diff --git a/libc/src/dlfcn/dlerror.cpp b/libc/src/dlfcn/dlerror.cpp new file mode 100644 index 00000000000000..8c3611d9c639e5 --- /dev/null +++ b/libc/src/dlfcn/dlerror.cpp @@ -0,0 +1,19 @@ +//===-- Implementation of delerror ----------------------------------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#include "dlerror.h" + +#include "src/__support/common.h" + +namespace LIBC_NAMESPACE { + +LLVM_LIBC_FUNCTION(char *, dlerror, ()) { + return const_cast("unsupported"); +} + +} // namespace LIBC_NAMESPACE diff --git a/libc/src/dlfcn/dlerror.h b/libc/src/dlfcn/dlerror.h new file mode 100644 index 00000000000000..966496016d3ebd --- /dev/null +++ b/libc/src/dlfcn/dlerror.h @@ -0,0 +1,18 @@ +//===-- Implementation header of dlerror ------------------------*- C++ -*-===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIBC_SRC_DLFCN_DLERROR_H +#define LLVM_LIBC_SRC_DLFCN_DLERROR_H + +namespace LIBC_NAMESPACE { + +char *dlerror(); + +} // namespace LIBC_NAMESPACE + +#endif // LLVM_LIBC_SRC_DLFCN_DLERROR_H diff --git a/libc/src/dlfcn/dlopen.cpp b/libc/src/dlfcn/dlopen.cpp new file mode 100644 index 00000000000000..835d981e192371 --- /dev/null +++ b/libc/src/dlfcn/dlopen.cpp @@ -0,0 +1,17 @@ +//===-- Implementation of dlopen -----------------------------------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#include "dlopen.h" + +#include "src/__support/common.h" + +namespace LIBC_NAMESPACE { + +LLVM_LIBC_FUNCTION(void *, dlopen, (const char *, int)) { return nullptr; } + +} // namespace LIBC_NAMESPACE diff --git a/libc/src/dlfcn/dlopen.h b/libc/src/dlfcn/dlopen.h new file mode 100644 index 00000000000000..4565953efd4943 --- /dev/null +++ b/libc/src/dlfcn/dlopen.h @@ -0,0 +1,18 @@ +//===-- Implementation header of dlopen -------------------------*- C++ -*-===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIBC_SRC_DLFCN_DLOPEN_H +#define LLVM_LIBC_SRC_DLFCN_DLOPEN_H + +namespace LIBC_NAMESPACE { + +void *dlopen(const char *, int); + +} // namespace LIBC_NAMESPACE + +#endif // LLVM_LIBC_SRC_DLFCN_DLOPEN_H diff --git a/libc/src/dlfcn/dlsym.cpp b/libc/src/dlfcn/dlsym.cpp new file mode 100644 index 00000000000000..98d678caece902 --- /dev/null +++ b/libc/src/dlfcn/dlsym.cpp @@ -0,0 +1,17 @@ +//===-- Implementation of dlsym ------------------------------------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#include "dlsym.h" + +#include "src/__support/common.h" + +namespace LIBC_NAMESPACE { + +LLVM_LIBC_FUNCTION(void *, dlsym, (void *, const char *)) { return nullptr; } + +} // namespace LIBC_NAMESPACE diff --git a/libc/src/dlfcn/dlsym.h b/libc/src/dlfcn/dlsym.h new file mode 100644 index 00000000000000..8157ac3e3fd4ca --- /dev/null +++ b/libc/src/dlfcn/dlsym.h @@ -0,0 +1,18 @@ +//===-- Implementation header of dlsym --------------------------*- C++ -*-===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIBC_SRC_DLFCN_DLSYM_H +#define LLVM_LIBC_SRC_DLFCN_DLSYM_H + +namespace LIBC_NAMESPACE { + +void *dlsym(void *, const char *); + +} // namespace LIBC_NAMESPACE + +#endif // LLVM_LIBC_SRC_DLFCN_DLSYM_H