• Paul Burton's avatar
    MIPS: Remove nabi_no_regargs · 96a68b14
    Paul Burton authored
    Our sigreturn functions make use of a macro named nabi_no_regargs to
    declare 8 dummy arguments to a function, forcing the compiler to expect
    a pt_regs structure on the stack rather than in argument registers. This
    is an ugly hack which unnecessarily causes these sigreturn functions to
    need to care about the calling convention of the ABI the kernel is built
    for. Although this is abstracted via nabi_no_regargs, it's still ugly &
    unnecessary.
    
    Remove nabi_no_regargs & the struct pt_regs argument from sigreturn
    functions, and instead use current_pt_regs() to find the struct pt_regs
    on the stack, which works cleanly regardless of ABI.
    Signed-off-by: default avatarPaul Burton <paul.burton@mips.com>
    Patchwork: https://patchwork.linux-mips.org/patch/20106/
    Cc: James Hogan <jhogan@kernel.org>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Cc: linux-mips@linux-mips.org
    96a68b14
signal_n32.c 4.45 KB