clGetProgramBuildInfo
clGetProgramBuildInfo
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clGetProgramBuildInfo Returns build information for each device in the program object.

##

cl_int `clGetProgramBuildInfo` cl_program program, cl_device_id device, cl_program_build_info param_name, size_t param_value_size, void *param_value, size_t *param_value_size_ret

## Parameters

`program`

  Specifies the program object being queried.

`device`

  Specifies the device for which build information is being queried. `device` must be a valid device associated with `program`.

`param_name`

  Specifies the information to query. The list of supported `param_name` types and the information returned in `param_value` by `clGetProgramBuildInfo` is described in the table below.

  cl_program_buid_info | Return Type and Info. returned in `param_value`
  --- | ---
  `CL_PROGRAM_BUILD_STATUS` | Return type: cl_build_status Returns the build, compile or link status, whichever was performed last on program for `device`. This can be one of the following: `CL_BUILD_NONE`. The build status returned if no clBuildProgram, clCompileProgram or clLinkProgram has been performed on the specified program object for `device`. `CL_BUILD_ERROR`. The build status returned if clBuildProgram, clCompileProgram or clLinkProgram whichever was performed last on the specified program object for device generated an error. `CL_BUILD_SUCCESS`. The build status returned if clBuildProgram, clCompileProgram or clLinkProgram whichever was performed last on the specified program object for `device` was successful. `CL_BUILD_IN_PROGRESS`. The build status returned if clBuildProgram, clCompileProgram or clLinkProgram whichever was performed last on the specified program object for `device` has not finished.
  `CL_PROGRAM_BUILD_OPTIONS` | Return type: char[] Return the build, compile or link options specified by the options argument in clBuildProgram, clCompileProgram or clLinkProgram, whichever was performed last on program for `device`. If build status of `program` for `device` is CL_BUILD_NONE, an empty string is returned.
  `CL_PROGRAM_BUILD_LOG` | Return type: char[] Return the build, compile or link log for clBuildProgram, clCompileProgram or clLinkProgram whichever was performed last on program for `device`. If build status of program for device is `CL_BUILD_NONE`, an empty string is returned.
  `CL_PROGRAM_BINARY_TYPE` | Return type: cl_program_binary_type Return the program binary type for `device`. This can be one of the following values: `CL_PROGRAM_BINARY_TYPE_NONE`. There is no binary associated with `device`. `CL_PROGRAM_BINARY_TYPE_COMPILED_OBJECT`. A compiled binary is associated with `device`. This is the case if program was created using clCreateProgramWithSource and compiled using clCompileProgram or a compiled binary is loaded using clCreateProgramWithBinary. `CL_PROGRAM_BINARY_TYPE_LIBRARY`. A library binary is associated with `device`. This is the case if program was created by clLinkProgram which is called with the –createlibrary link option or if a library binary is loaded using clCreateProgramWithBinary. `CL_PROGRAM_BINARY_TYPE_EXECUTABLE`. An executable binary is associated with `device`. This is the case if program was created by clLinkProgram without the –createlibrary link option or program was created by clBuildProgram or an executable binary is loaded using clCreateProgramWithBinary.

`param_value`

  A pointer to memory where the appropriate result being queried is returned. If `param_value` is NULL, it is ignored.

`param_value_size`

  Specifies the size in bytes of memory pointed to by `param_value`. This size must be ≥ size of return type as described in the table above.

`param_value_size_ret`

  Returns the actual size in bytes of data copied to `param_value`. If `param_value_size_ret` is NULL, it is ignored.

## Notes

A program binary (compiled binary, library binary or executable binary) built for a parent device can be used by all its sub-devices. If a program binary has not been built for a sub-device, the program binary associated with the parent device will be used.

A program binary for a device specified with clCreateProgramWithBinary or queried using clGetProgramInfo can be used as the binary for the associated root device, and all sub-devices created from the root-level device or sub-devices thereof.

## Errors

Returns CL_SUCCESS if the function is executed successfully. Otherwise it returns the following:

- Returns CL_INVALID_DEVICE if `device` is not in the list of devices associated with `program`.
- Returns CL_INVALID_VALUE if `param_name` is not valid, or if size in bytes specified by `param_value_size` is < size of return type as described in the table above and `param_value` is not NULL.
- Returns CL_INVALID_PROGRAM if `program` is a not a valid program object.
- CL_OUT_OF_RESOURCES if there is a failure to allocate resources required by the OpenCL implementation on the device.
- CL_OUT_OF_HOST_MEMORY if there is a failure to allocate resources required by the OpenCL implementation on the host.

## Specification

OpenCL Specification

## Also see

clGetProgramInfo

##