ucontext_adapter.hpp File Reference

POSIX ucontext_t / mcontext_t register context adapter for Linux and FreeBSD. More...

#include <cstdint>
#include <cstring>
#include <type_traits>
#include <ucontext.h>
#include "../microfmt.hpp"
#include "dwarf_registers.hpp"
#include "register_context.hpp"

Include dependency graph for ucontext_adapter.hpp:

Go to the source code of this file.

Namespaces
namespace	microfmt
namespace	microfmt::detail

Functions
bool	microfmt::detail::ucontext_read_register (const void *ctx, address_space_ref, uint32_t dwarf_reg_index, void *out_value, size_t value_size) noexcept
	Reads a general-purpose register out of a POSIX ucontext_t by its DWARF register index (see microfmt::dwarf).
bool	microfmt::detail::ucontext_write_register (void *ctx, address_space_ref, uint32_t dwarf_reg_index, const void *in_value, size_t value_size) noexcept
	Writes a general-purpose register into a POSIX ucontext_t by its DWARF register index (see microfmt::dwarf).
register_context_ref	microfmt::make_ucontext_register_context_ref (const ucontext_t &uctx RELOCO_LIFETIMEBOUND, address_space_ref space, span< std::byte > scratch RELOCO_LIFETIMEBOUND) noexcept
	Creates a read-only, type-erased register_context_ref backed by a POSIX ucontext_t (e.g. a signal handler's third argument).
register_context_ref	microfmt::make_mutable_ucontext_register_context_ref (ucontext_t &uctx RELOCO_LIFETIMEBOUND, address_space_ref space, span< std::byte > scratch RELOCO_LIFETIMEBOUND) noexcept
	Creates a mutable, type-erased register_context_ref backed by a POSIX ucontext_t, supporting both register reads and writes.

Detailed Description

POSIX ucontext_t / mcontext_t register context adapter for Linux and FreeBSD.