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