mirror of
https://github.com/FEX-Emu/FEX.git
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Lioncash
75b2f226f6
Migrates lingering instances of the old logger over to fmt where applicable. This allows removing some of the old defines and functions. The only remaining usages of the printf-based variant of the logger is in Tests/LinuxSyscalls/Syscalls.cpp for the strace handling.
112 lines
4.1 KiB
C++
112 lines
4.1 KiB
C++
/*
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$info$
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tags: LinuxSyscalls|syscalls-shared
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$end_info$
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*/
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#include "Tests/LinuxSyscalls/Syscalls.h"
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#include "Tests/LinuxSyscalls/x64/Syscalls.h"
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#include "Tests/LinuxSyscalls/x32/Syscalls.h"
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#include <FEXCore/Utils/LogManager.h>
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#include <cstring>
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#include <linux/kcmp.h>
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#include <linux/seccomp.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <syslog.h>
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#include <sys/random.h>
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#include <sys/resource.h>
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#include <sys/syscall.h>
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#include <sys/utsname.h>
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#include <sys/klog.h>
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#include <unistd.h>
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#include <git_version.h>
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namespace FEX::HLE {
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using cap_user_header_t = void*;
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using cap_user_data_t = void*;
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void RegisterInfo() {
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REGISTER_SYSCALL_IMPL(uname, [](FEXCore::Core::CpuStateFrame *Frame, struct utsname *buf) -> uint64_t {
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struct utsname Local{};
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if (::uname(&Local) == 0) {
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memcpy(buf->nodename, Local.nodename, sizeof(Local.nodename));
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static_assert(sizeof(Local.nodename) <= sizeof(buf->nodename));
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memcpy(buf->domainname, Local.domainname, sizeof(Local.domainname));
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static_assert(sizeof(Local.domainname) <= sizeof(buf->domainname));
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}
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else {
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strcpy(buf->nodename, "FEXCore");
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LogMan::Msg::EFmt("Couldn't determine host nodename. Defaulting to '{}'", buf->nodename);
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}
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strcpy(buf->sysname, "Linux");
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uint32_t GuestVersion = FEX::HLE::_SyscallHandler->GetGuestKernelVersion();
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snprintf(buf->release, sizeof(buf->release), "%d.%d.%d",
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FEX::HLE::SyscallHandler::KernelMajor(GuestVersion),
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FEX::HLE::SyscallHandler::KernelMinor(GuestVersion),
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FEX::HLE::SyscallHandler::KernelPatch(GuestVersion));
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const char version[] = "#" GIT_DESCRIBE_STRING " SMP " __DATE__ " " __TIME__;
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strcpy(buf->version, version);
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static_assert(sizeof(version) <= sizeof(buf->version), "uname version define became too large!");
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// Tell the guest that we are a 64bit kernel
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strcpy(buf->machine, "x86_64");
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return 0;
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});
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REGISTER_SYSCALL_IMPL_PASS(syslog, [](FEXCore::Core::CpuStateFrame *Frame, int type, char *bufp, int len) -> uint64_t {
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uint64_t Result = ::klogctl(type, bufp, len);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL_PASS(getrandom, [](FEXCore::Core::CpuStateFrame *Frame, void *buf, size_t buflen, unsigned int flags) -> uint64_t {
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uint64_t Result = ::getrandom(buf, buflen, flags);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL_PASS(capget, [](FEXCore::Core::CpuStateFrame *Frame, cap_user_header_t hdrp, cap_user_data_t datap) -> uint64_t {
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uint64_t Result = ::syscall(SYSCALL_DEF(capget), hdrp, datap);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL_PASS(capset, [](FEXCore::Core::CpuStateFrame *Frame, cap_user_header_t hdrp, const cap_user_data_t datap) -> uint64_t {
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uint64_t Result = ::syscall(SYSCALL_DEF(capset), hdrp, datap);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(getcpu, [](FEXCore::Core::CpuStateFrame *Frame, unsigned *cpu, unsigned *node, struct getcpu_cache *tcache) -> uint64_t {
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uint32_t LocalCPU{};
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uint32_t LocalNode{};
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// tcache is ignored
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uint64_t Result = ::syscall(SYSCALL_DEF(getcpu), cpu ? &LocalCPU : nullptr, node ? &LocalNode : nullptr, nullptr);
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if (Result == 0) {
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if (cpu) {
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// Ensure we don't return a number over our number of emulated cores
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*cpu = LocalCPU % FEX::HLE::_SyscallHandler->ThreadsConfig();
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}
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if (node) {
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// Just claim we are part of node zero
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*node = 0;
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}
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}
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SYSCALL_ERRNO();
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});
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//compare two processes to determine if they share a kernel resource
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REGISTER_SYSCALL_IMPL_PASS(kcmp, [](FEXCore::Core::CpuStateFrame *Frame, pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) -> uint64_t {
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uint64_t Result = ::syscall(SYSCALL_DEF(kcmp), pid1, pid2, type, idx1, idx2);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(seccomp, [](FEXCore::Core::CpuStateFrame *Frame, unsigned int operation, unsigned int flags, void *args) -> uint64_t {
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// FEX doesn't support seccomp
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return -EINVAL;
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});
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}
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}
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