sysio::vm::profile_instr_map Class Reference

#include <debug_info.hpp>

Classes
struct	builder

Public Member Functions
void	set (builder &&b)
	profile_instr_map ()=default
	profile_instr_map (const profile_instr_map &)=delete
profile_instr_map &	operator= (const profile_instr_map &)=delete
void	relocate (const void *new_base)
std::uint32_t	translate (const void *pc) const
void	set (builder &&b)
	profile_instr_map ()=default
	profile_instr_map (const profile_instr_map &)=delete
profile_instr_map &	operator= (const profile_instr_map &)=delete
void	relocate (const void *new_base)
std::uint32_t	translate (const void *pc) const

Detailed Description

Definition at line 22 of file debug_info.hpp.

Constructor & Destructor Documentation

profile_instr_map() [1/4]

sysio::vm::profile_instr_map::profile_instr_map ( )

default

profile_instr_map() [2/4]

sysio::vm::profile_instr_map::profile_instr_map ( const profile_instr_map & )

delete

profile_instr_map() [3/4]

sysio::vm::profile_instr_map::profile_instr_map ( )

default

profile_instr_map() [4/4]

sysio::vm::profile_instr_map::profile_instr_map ( const profile_instr_map & )

delete

Member Function Documentation

operator=() [1/2]

profile_instr_map & sysio::vm::profile_instr_map::operator= ( const profile_instr_map & )

delete

operator=() [2/2]

profile_instr_map & sysio::vm::profile_instr_map::operator= ( const profile_instr_map & )

delete

relocate() [1/2]

void sysio::vm::profile_instr_map::relocate ( const void * new_base )

inline

Definition at line 71 of file debug_info.hpp.

{ base_address = new_base; }

relocate() [2/2]

void sysio::vm::profile_instr_map::relocate ( const void * new_base )

inline

Definition at line 71 of file debug_info.hpp.

{ base_address = new_base; }

set() [1/2]

void sysio::vm::profile_instr_map::set ( builder && b )

inline

Definition at line 57 of file debug_info.hpp.

                         {
      data = std::move(b.data);
      std::sort(data.begin(), data.end(), [](const addr_entry& lhs, const addr_entry& rhs){ return lhs.offset < rhs.offset; });
      base_address = b.code_base;
      code_size = reinterpret_cast<const char*>(b.code_end) - reinterpret_cast<const char*>(base_address);
      offset_to_addr = data.data();
      offset_to_addr_len = data.size();
   }

set() [2/2]

void sysio::vm::profile_instr_map::set ( builder && b )

inline

Definition at line 57 of file debug_info.hpp.

                         {
      data = std::move(b.data);
      std::sort(data.begin(), data.end(), [](const addr_entry& lhs, const addr_entry& rhs){ return lhs.offset < rhs.offset; });
      base_address = b.code_base;
      code_size = reinterpret_cast<const char*>(b.code_end) - reinterpret_cast<const char*>(base_address);
      offset_to_addr = data.data();
      offset_to_addr_len = data.size();
   }

translate() [1/2]

std::uint32_t sysio::vm::profile_instr_map::translate ( const void * pc ) const

inline

Definition at line 74 of file debug_info.hpp.

                                               {
      std::size_t diff = (reinterpret_cast<const char*>(pc) - reinterpret_cast<const char*>(base_address)); // negative values wrap
      if(diff >= code_size || diff < offset_to_addr[0].offset) return 0xFFFFFFFFu;
      std::uint32_t offset = diff;
 
      // Loop invariant: offset_to_addr[lower].offset <= offset < offset_to_addr[upper].offset
      std::size_t lower = 0, upper = offset_to_addr_len;
      while(upper - lower > 1) {
         std::size_t mid = lower + (upper - lower) / 2;
         if(offset_to_addr[mid].offset <= offset) {
            lower = mid;
         } else {
            upper = mid;
         }
      }
 
      return offset_to_addr[lower].wasm_addr;
   }

Here is the call graph for this function:

Here is the caller graph for this function:

translate() [2/2]

std::uint32_t sysio::vm::profile_instr_map::translate ( const void * pc ) const

inline

Definition at line 74 of file debug_info.hpp.

                                               {
      std::size_t diff = (reinterpret_cast<const char*>(pc) - reinterpret_cast<const char*>(base_address)); // negative values wrap
      if(diff >= code_size || diff < offset_to_addr[0].offset) return 0xFFFFFFFFu;
      std::uint32_t offset = diff;
 
      // Loop invariant: offset_to_addr[lower].offset <= offset < offset_to_addr[upper].offset
      std::size_t lower = 0, upper = offset_to_addr_len;
      while(upper - lower > 1) {
         std::size_t mid = lower + (upper - lower) / 2;
         if(offset_to_addr[mid].offset <= offset) {
            lower = mid;
         } else {
            upper = mid;
         }
      }
 
      return offset_to_addr[lower].wasm_addr;
   }

Here is the call graph for this function:

---

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

• libraries/sys-vm/include/sysio/sysio/vm/debug_info.hpp
• libraries/sys-vm/include/sysio/vm/debug_info.hpp