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Enumerations | Functions
SEC: Section Object

Enumerations

enum  SEC_TYPE {
  SEC_TYPE_INVALID,
  SEC_TYPE_UNUSED,
  SEC_TYPE_REGREL,
  SEC_TYPE_DYNREL,
  SEC_TYPE_EXEC,
  SEC_TYPE_DATA,
  SEC_TYPE_DYNAMIC,
  SEC_TYPE_OPD,
  SEC_TYPE_GOT,
  SEC_TYPE_STACK,
  SEC_TYPE_PLTOFF,
  SEC_TYPE_HASH,
  SEC_TYPE_LSDA,
  SEC_TYPE_UNWIND,
  SEC_TYPE_UNWINDINFO,
  SEC_TYPE_REGSYM,
  SEC_TYPE_DYNSYM,
  SEC_TYPE_DEBUG,
  SEC_TYPE_BSS,
  SEC_TYPE_SYMSTR,
  SEC_TYPE_DYNSTR,
  SEC_TYPE_SECSTR,
  SEC_TYPE_COMMENT,
  SEC_TYPE_LOOS,
  SEC_TYPE_USER,
  SEC_TYPE_PROC,
  SEC_TYPE_LAST
}
 

Functions

IMG SEC_Img (SEC sec)
 
SEC SEC_Next (SEC sec)
 
SEC SEC_Prev (SEC sec)
 
SEC SEC_Invalid ()
 
BOOL SEC_Valid (SEC x)
 
RTN SEC_RtnHead (SEC sec)
 
RTN SEC_RtnTail (SEC sec)
 
const std::string & SEC_Name (SEC sec)
 
SEC_TYPE SEC_Type (SEC sec)
 
BOOL SEC_Mapped (SEC sec)
 
const VOID * SEC_Data (SEC sec)
 
ADDRINT SEC_Address (SEC sec)
 
BOOL SEC_IsReadable (SEC sec)
 
BOOL SEC_IsWriteable (SEC sec)
 
BOOL SEC_IsExecutable (SEC sec)
 
USIZE SEC_Size (SEC sec)
 

Detailed Description

A SEC is modeled after the sections found inside elf images. Can be accessed at instrumentation time and analysis time.

SECs can be mapped or unmapped, a mapped SEC occupies address space inside the IMG. Unmapped SECs often contain debug and relocation information.
APIs from this group are available in any thread, including any internal thread spawned by the tool.

Iteration idioms:

// Forward pass over all sections in an image
for( SEC sec= IMG_SecHead(img); SEC_Valid(sec); sec = SEC_Next(sec) )
// Reverse pass over all sections in animage
for( SEC sec= IMG_SecTail(img); SEC_Valid(sec); sec = SEC_Prev(sec) )
Availability:
Mode: JIT & Probe
O/S: Linux & Windows
CPU: All

Enumeration Type Documentation

◆ SEC_TYPE

enum SEC_TYPE

This file contains SEC: Section Object and Mapping primitives

SEC types

Enumerator
SEC_TYPE_REGREL 

relocations

SEC_TYPE_DYNREL 

dynamic relocations

SEC_TYPE_EXEC 

contains code

SEC_TYPE_DATA 

contains initialized data

SEC_TYPE_DYNAMIC 

contains dynamic code

SEC_TYPE_LSDA 

old exception_info (obsolete)

SEC_TYPE_BSS 

contains uninitialized data

SEC_TYPE_LOOS 

OS specific.

SEC_TYPE_USER 

Application specific.

SEC_TYPE_PROC 

Processor specific.

Function Documentation

◆ SEC_Address()

ADDRINT SEC_Address ( SEC  sec)
Returns
Address in memory of sec

If image is loaded by system loader, the real virtual address of section will be returned. If the image is mapped by IMG_Open() the address will be inside the mapped image. On Unix, if the section is not loadable, 0 will be returned in the both cases.

◆ SEC_Data()

const VOID* SEC_Data ( SEC  sec)
Returns
Return a pointer to the raw data for the section

On Linux, Pin maps the whole image file for processing. The pointer returned by SEC_Data() points inside the mapped file. Note, SEC_Data() pointer is always between IMG_StartAddress() and IMG_StartAddress() + IMG_SizeMapped(). If you are analyzing image in image-load callback, please remember that the image will be unmapped after the callback returns and the pointer provided by SEC_Data() becomes invalid. If you are working with IMG_Open() the pointer is valid until IMG_Close().

If section does not have raw data the function returns 0.

Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_Img()

IMG SEC_Img ( SEC  sec)
Returns
Image that contains this section
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_Invalid()

SEC SEC_Invalid ( )
Returns
Invalid section value
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_IsExecutable()

BOOL SEC_IsExecutable ( SEC  sec)
Returns
TRUE if section is executable

◆ SEC_IsReadable()

BOOL SEC_IsReadable ( SEC  sec)
Returns
TRUE if section is readable

◆ SEC_IsWriteable()

BOOL SEC_IsWriteable ( SEC  sec)
Returns
TRUE if section is writable

◆ SEC_Mapped()

BOOL SEC_Mapped ( SEC  sec)
Returns
True if section is mapped in memory, unmapped section contain data not needed at run time, like debug information
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_Name()

const std::string& SEC_Name ( SEC  sec)
Returns
Section name
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_Next()

SEC SEC_Next ( SEC  sec)
Returns
Section that follows x, or SEC_Invalid() is x is last section in the image
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_Prev()

SEC SEC_Prev ( SEC  sec)
Returns
Previous section of x, or SEC_Invalid() if x is the first in the image
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_RtnHead()

RTN SEC_RtnHead ( SEC  sec)
Returns
First RTN of x, or RTN_Invalid() if no RTNs
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_RtnTail()

RTN SEC_RtnTail ( SEC  sec)
Returns
Last RTN of x, or RTN_Invalid() if no RTNs
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_Size()

USIZE SEC_Size ( SEC  sec)
Returns
Size of section

◆ SEC_Type()

SEC_TYPE SEC_Type ( SEC  sec)
Returns
Section type
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All

◆ SEC_Valid()

BOOL SEC_Valid ( SEC  x)
Returns
True if x is not SEC_Invalid()
Availability:
Mode: JIT & Probe
O/S: Linux, Windows & macOS*
CPU: All