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ldr_inq_region(3)
NAME
  ldr_inq_region - Return module information about a region in a loaded
  module

SYNOPSIS
  #include <sys/types.h>
  #include <loader.h>

  int ldr_inq_region(
	  ldr_process_t process,
	  ldr_module_t mod_id,
	  ldr_region_t region,
	  ldr_region_info_t *info,
	  size_t info_size,
	  size_t *ret_size );

LIBRARY
  Standard C Library (libc)

PARAMETERS
  process
      Specifies the process whose address space contains the module for which
      the region information is required.

  mod_id
      Identifies the module.  The module ID is returned when the module is
      first loaded.

  region
      Identifies the region.

  info
      Points to a ldr_region_info_t buffer in which the information about the
      loaded region is returned.

  info_size
      Specifies the size of the allocated ldr_region_info_t structure, in
      bytes.

  ret_size
      Specifies the number of types actually returned into the buffer pointed
      to by the info parameter.

DESCRIPTION
  The ldr_inq_region() function returns information about a specified region
  within a specified module. The module is contained within the address space
  of the specified process. The returned information includes the number and
  name of the region, its protection attributes, its size, and address
  information about the region in the process' address space.

  To obtain the unique identifier for the current process, use the call:

  ldr_process_t ldr_my_process();

  To obtain the unique identifier for the kernel, use the call:

  ldr_process_t ldr_kernel_process();

  The ldr_region_t values are unique identifiers for each loaded region for a
  particular module. The value of the region parameter ranges from 0 (zero)
  to (maximum number of regions) -1.

NOTES
  The loader assumes that each object module contains one or more regions.  A
  region is a separately relocated, virtually contiguous range within a
  module.  A region can contain text or data.

  This function is currently implemented only for the current process and the
  kernel.

RETURN VALUES
  Upon successful completion, the function returns a value of 0 (zero).	 If
  the operation fails, the function returns a negative error value and errno
  is set to indicate the error.

ERRORS
  If the ldr_inq_region() function fails, errno may be set to one of the
  following values:

  [EINVAL]
      The specified module ID or region ID is not valid.

  [ESRCH]
      The process identifier is not valid.

  Additional errors may be returned from the underlying IPC mechanism (for
  kernel/cross-process loading).

SEE ALSO
  Functions: ldr_inq_module(3), ldr_next_module(3)

Index for Section 3

Alphabetical listing for L

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