ldr_xattach(3) Library Functions Manual ldr_xattach(3)NAME
ldr_xattach - Attaches to another process to permit loading/unloading of modules in that process' address space
LIBRARY
Standard C Library (libc.a)
SYNOPSIS
#include <sys/types.h> #include <loader.h>
int ldr_xattach( ldr_process_t process );
PARAMETERS
Specifies the process to attach to.
DESCRIPTION
The ldr_xattach() function is used to permit a process to load, unload, query, or retrieve the contents of another process' address space.
NOTES
This function currently works only for the current process or the kernel.
RETURN VALUES
If the attach operation is a success, the function returns a code of 0 (zero). If the attach fails, the function returns a negative error
value and errno is set to indicate the error.
ERRORS
If the ldr_xattach() function fails, errno may be set to the following value: The process identified is nonshared and does not support
loader operations. The process identifier is invalid.
Additional errors are possible from the underlying IPC mechanism.
RELATED INFORMATION
Functions: ldr_xdetach(3) delim off
ldr_xattach(3)
Check Out this Related Man Page
ldr_inq_region(3) Library Functions Manual ldr_inq_region(3)NAME
ldr_inq_region - Returns module information about a region in a loaded module
LIBRARY
Standard C Library (libc.a)
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);
PARAMETERS
Specifies the process whose address space contains the module for which the region information is required. Identifies the module. The
module ID is returned when the module is first loaded. Identifies the region. Points to a ldr_region_info_t buffer in which the informa-
tion about the loaded region is returned. Specifies the size of the allocated ldr_region_info_t structure, in bytes. 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: The specified module ID or region ID is not valid.
The process identifier is not valid.
Additional errors may be returned from the underlying IPC mechanism (for kernel/cross-process loading).
RELATED INFORMATION
Functions: ldr_inq_module(3), ldr_next_module(3) delim off
ldr_inq_region(3)