sandboxed-api/sandboxed_api/sandbox2/syscall_defs.h
Christian Blichmann 6a1e4b881c Introduce config header to centralize CPU architecture checks
This allows us to remove some uses of macros.

Related changes:
- Make it clear that we support hosting sandboxed binaries from 64-bit
  processes only. CPU architectures are x86-64 and POWER64 (little endian).
- Introduced CPU architecture macros, abstracting away compiler specifics

PiperOrigin-RevId: 330918134
Change-Id: Ife7ad5f14723eec9f68055127b0583b8aecd38dd
2020-09-10 05:48:00 -07:00

46 lines
1.0 KiB
C++

#ifndef SANDBOXED_API_SANDBOX2_SYSCALL_DEFS_H_
#define SANDBOXED_API_SANDBOX2_SYSCALL_DEFS_H_
#include <sys/types.h>
#include <cstdint>
#include <string>
#include <vector>
#include "absl/strings/string_view.h"
#include "absl/types/span.h"
#include "sandboxed_api/sandbox2/config.h"
#include "sandboxed_api/sandbox2/syscall.h"
namespace sandbox2 {
namespace syscalls {
constexpr int kMaxArgs = 6;
} // namespace syscalls
class SyscallTable {
public:
struct Entry;
// Returns the syscall table for the architecture.
static SyscallTable get(cpu::Architecture arch);
int size() { return data_.size(); }
absl::string_view GetName(int syscall) const;
std::vector<std::string> GetArgumentsDescription(
int syscall, const uint64_t values[syscalls::kMaxArgs], pid_t pid) const;
private:
constexpr SyscallTable() = default;
explicit constexpr SyscallTable(absl::Span<const Entry> data) : data_(data) {}
const absl::Span<const Entry> data_;
};
} // namespace sandbox2
#endif // SANDBOXED_API_SANDBOX2_SYSCALL_DEFS_H_