libc/src/__support/OSUtil/linux/riscv/vdso.h

//===---------- RISC-V vdso configuration -------------------------* 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___SUPPORT_OSUTIL_LINUX_RISCV_VDSO_H
#define LLVM_LIBC_SRC___SUPPORT_OSUTIL_LINUX_RISCV_VDSO_H
#include "src/__support/CPP/string_view.h"
#include "src/__support/OSUtil/linux/vdso_sym.h"
namespace LIBC_NAMESPACE_DECL {
namespace vdso {
// translate VDSOSym to symbol names
// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/riscv/kernel/vdso/vdso.lds.S
LIBC_INLINE constexpr cpp::string_view symbol_name(VDSOSym sym) {
  switch (sym) {
  case VDSOSym::RTSigReturn:
    return "__vdso_rt_sigreturn";
  case VDSOSym::GetTimeOfDay:
    return "__vdso_gettimeofday";
  case VDSOSym::ClockGetTime:
    return "__vdso_clock_gettime";
  case VDSOSym::ClockGetRes:
    return "__vdso_clock_getres";
  case VDSOSym::GetCpu:
    return "__vdso_getcpu";
  case VDSOSym::FlushICache:
    return "__vdso_flush_icache";
  case VDSOSym::RiscvHwProbe:
    return "__vdso_riscv_hwprobe";
  default:
    return "";
  }
}

// symbol versions
LIBC_INLINE constexpr cpp::string_view symbol_version(VDSOSym) {
  return "LINUX_4.15";
}
} // namespace vdso
} // namespace LIBC_NAMESPACE_DECL
#endif // LLVM_LIBC_SRC___SUPPORT_OSUTIL_LINUX_RISCV_VDSO_H