• Maxim Kuvyrkov's avatar
    m68k: Define sigcontext ABI of ColdFire · 00ebfe58
    Maxim Kuvyrkov authored
    The following patch defines sigcontext ABI of ColdFire.  Due to ISA
    restrictions ColdFire needs different rt_sigreturn trampoline.
    
    And due to ColdFire FP registers being 8-bytes instead of 12-bytes on
    m68k, sigcontext and fpregset structures should be updated.
    
    Regarding the sc_fpstate[16+6*8] field, it would've been enough 16
    bytes to store ColdFire's FP state.  To accomodate GLIBC's libSegFault
    it would'be been enough 6*8 bytes (room for the 6 non-call-clobbered
    FP registers).  I set it to 16+6*8 to provide some extra space for any
    future changes in the ColdFire FPU.
    Signed-off-by: default avatarMaxim Kuvyrkov <maxim@codesourcery.com>
    Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
    00ebfe58
sigcontext.h 732 Bytes