clues::SystemCallInfo Class Reference

Extended ptrace system call state information. More...

#include <SystemCallInfo.hxx>

Inheritance diagram for clues::SystemCallInfo:

Public Member Functions
auto	sysNr () const
AnySystemCallNr	nativeSysNr () const
void	updateSysNr ()
	Update m_generic and m_native based on the raw system call nr.
ABI	abi () const

Protected Attributes
SystemCallNr	m_generic
AnySystemCallNr	m_native
ABI	m_abi = ABI::UNKNOWN

Detailed Description

Extended ptrace system call state information.

This type additionally contains the type safe generic SystemCallNr and SystemCallnrVariant denoting the ABI-specific system call nr.

Furthermore the exact ABI the system call is for is determined and available via abi().

Definition at line 20 of file SystemCallInfo.hxx.

Constructor & Destructor Documentation

SystemCallInfo()

clues::SystemCallInfo::SystemCallInfo

(

)

Definition at line 10 of file SystemCallInfo.cxx.

                               :
        m_generic{SystemCallNr::UNKNOWN} {
}

Member Function Documentation

abi()

ABI clues::SystemCallInfo::abi ( ) const

inline

Definition at line 41 of file SystemCallInfo.hxx.

                        {
                return m_abi;
        }

nativeSysNr()

AnySystemCallNr clues::SystemCallInfo::nativeSysNr ( ) const

inline

Definition at line 30 of file SystemCallInfo.hxx.

                                            {
                return m_native;
        }

sysNr()

auto clues::SystemCallInfo::sysNr ( ) const

inline

Definition at line 26 of file SystemCallInfo.hxx.

                           {
                return m_generic;
        }

updateSysNr()

void clues::SystemCallInfo::updateSysNr

(

)

Update m_generic and m_native based on the raw system call nr.

This call is only valid upon system call entry. The raw system call number will be translated into m_generic and m_native.

Definition at line 14 of file SystemCallInfo.cxx.

                                 {
        if (!isEntry()) {
                throw cosmos::RuntimeError{"bad SysCallInfo state"};
        }
 
        using Arch = cosmos::ptrace::Arch;
        const auto native = entryInfo()->syscallNr();
 
        switch (arch()) {
                case Arch::X86_64: {
                        if (isX32()) {
                                m_abi = ABI::X32;
                                const auto x32_syscall = SystemCallNrX32{native};
                                m_native = x32_syscall;
                                m_generic = to_generic(x32_syscall);
                        } else {
                                m_abi = ABI::X86_64;
                                const auto x64_syscall = SystemCallNrX64{native};
                                m_native = x64_syscall;
                                m_generic = to_generic(x64_syscall);
                        }
                        break;
                }
                case Arch::I386: {
                        const auto i386_syscall = SystemCallNrI386{native};
                        m_native = i386_syscall;
                        m_generic = to_generic(i386_syscall);
                        m_abi = ABI::I386;
                        break;
                }
                case Arch::AARCH64: {
                        const auto aarch64_syscall = SystemCallNrAARCH64{native};
                        m_native = aarch64_syscall;
                        m_generic = to_generic(aarch64_syscall);
                        m_abi = ABI::AARCH64;
                        break;
                }
        default:
                throw cosmos::RuntimeError("unsupported ARCH");
                break;
        }
}

Member Data Documentation

m_abi

ABI clues::SystemCallInfo::m_abi = ABI::UNKNOWN

protected

Definition at line 49 of file SystemCallInfo.hxx.

m_generic

SystemCallNr clues::SystemCallInfo::m_generic

protected

Definition at line 47 of file SystemCallInfo.hxx.

m_native

AnySystemCallNr clues::SystemCallInfo::m_native

protected

Definition at line 48 of file SystemCallInfo.hxx.

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The documentation for this class was generated from the following files:

• include/SystemCallInfo.hxx
• src/SystemCallInfo.cxx