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https://github.com/RGBCube/serenity
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LibCore+LibSystem: Move syscall wrappers from LibSystem to LibCore
With this change, System::foo() becomes Core::System::foo(). Since LibCore builds on other systems than SerenityOS, we now have to make sure that wrappers work with just a standard C library underneath.
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acc2eccede
commit
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32 changed files with 165 additions and 173 deletions
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@ -1,13 +1,7 @@
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set(SOURCES
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Wrappers.cpp
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syscall.cpp
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)
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# FIXME: This is a hack to avoid a circular dependency with LibC. Figure out a better way.
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if ("${SERENITY_ARCH}" STREQUAL "i686")
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set_source_files_properties(${SOURCES} PROPERTIES COMPILE_FLAGS "-fno-stack-protector")
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endif()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -nostdlib")
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serenity_libc(LibSystem system)
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target_include_directories(LibSystem PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
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@ -1,51 +0,0 @@
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/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibSystem/Wrappers.h>
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#include <LibSystem/syscall.h>
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#define HANDLE_SYSCALL_RETURN_VALUE(syscall_name, rc, success_value) \
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if ((rc) < 0) { \
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return Error::from_syscall(syscall_name, rc); \
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} \
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return success_value;
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namespace System {
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ErrorOr<void> pledge(StringView promises, StringView execpromises)
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{
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Syscall::SC_pledge_params params {
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{ promises.characters_without_null_termination(), promises.length() },
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{ execpromises.characters_without_null_termination(), execpromises.length() },
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};
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int rc = syscall(SC_pledge, ¶ms);
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HANDLE_SYSCALL_RETURN_VALUE("pledge"sv, rc, {});
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}
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ErrorOr<void> unveil(StringView path, StringView permissions)
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{
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Syscall::SC_unveil_params params {
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{ path.characters_without_null_termination(), path.length() },
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{ permissions.characters_without_null_termination(), permissions.length() },
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};
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int rc = syscall(SC_unveil, ¶ms);
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HANDLE_SYSCALL_RETURN_VALUE("unveil"sv, rc, {});
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}
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ErrorOr<void> sigaction(int signal, struct sigaction const* action, struct sigaction* old_action)
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{
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int rc = syscall(SC_sigaction, signal, action, old_action);
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HANDLE_SYSCALL_RETURN_VALUE("sigaction"sv, rc, {});
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}
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ErrorOr<struct stat> fstat(int fd)
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{
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struct stat st;
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int rc = syscall(SC_fstat, fd, &st);
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HANDLE_SYSCALL_RETURN_VALUE("fstat"sv, rc, st);
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}
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}
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@ -1,20 +0,0 @@
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/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Error.h>
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#include <signal.h>
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#include <sys/stat.h>
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namespace System {
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ErrorOr<void> pledge(StringView promises, StringView execpromises);
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ErrorOr<void> unveil(StringView path, StringView permissions);
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ErrorOr<void> sigaction(int signal, struct sigaction const* action, struct sigaction* old_action);
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ErrorOr<struct stat> fstat(int fd);
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}
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