• Chris Metcalf's avatar
    arch/tile: factor out <arch/opcode.h> header · eb7c792d
    Chris Metcalf authored
    The kernel code was using some <asm> headers that included a mix
    of hardware-specific information (typically found in Tilera <arch>
    headers) and structures, enums, and function declarations supporting
    the disassembly function of the tile-desc.c sources.
    
    This change refactors that code so that a hardware-specific, but
    OS- and application-agnostic header, is created: <arch/opcode.h>.
    This header is then exported to userspace along with the other
    <arch> headers and can be used to build userspace code; in particular,
    it is used by glibc as part of implementing the backtrace() function.
    
    The new header, together with a header that specifically describes
    the disassembly code (<asm/tile-desc.h> with _32 and _64 variants),
    replaces the old <asm/opcode-tile*.h> and <asm/opcode_constants*.h>
    headers.
    
    As part of this change, we are also renaming the 32-bit constants
    from TILE_xxx to TILEPRO_xxx to better reflect the fact that they
    are specific to the TILEPro architecture, and not to TILE-Gx
    and any successor "tile" architecture chips.
    Signed-off-by: default avatarChris Metcalf <cmetcalf@tilera.com>
    eb7c792d
tile-desc_64.c 94.9 KB