[parisc-linux] Re: gcj can't make shared libs on hppa

[Carlos O'Donell]

> Index: config/pa/pa32-linux.h
> ===================================================================
> --- config/pa/pa32-linux.h      (revision 111979)
> +++ config/pa/pa32-linux.h      (working copy)
> @@ -1,5 +1,5 @@
>  /* Definitions for PA_RISC with ELF-32 format
> -   Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc.
> +   Copyright (C) 2000, 2002, 2004, 2006 Free Software Foundation, Inc.
>
>  This file is part of GCC.
>
> @@ -36,4 +36,29 @@
>                     aligned(sizeof(func_ptr))))                         \
>      = { (func_ptr) (-1) }
>
> +/* This is a PIC version of CRT_CALL_STATIC_FUNCTION.  The PIC
> +   register has to be saved before the call and restored after
> +   the call.  We assume that register %r4 is available for this
> +   purpose.  The hack prevents GCC from deleting the restore.  */
> +#ifdef CRTSTUFFS_O
> +#undef CRT_CALL_STATIC_FUNCTION
> +#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)     \
> +static void __attribute__((__used__))                  \
> +call_ ## FUNC (void)                                   \
> +{                                                      \
> +  asm (SECTION_OP);                                    \
> +  asm volatile (".call\n\t"                            \
> +               "bl " #FUNC ",%%r2\n\t"                 \
> +               "copy %%r19,%%r4\n\t"                   \
> +               "copy %%r4,%%r19\n"                     \
> +               :                                       \
> +               :                                       \
> +               : "r1", "r2", "r4", "r20", "r21",       \
> +                 "r22", "r24", "r24", "r25", "r26",    \
> +                 "r27", "r28", "r29", "r31");          \
> +  FORCE_CODE_SECTION_ALIGN                             \
> +  asm (TEXT_SECTION_ASM_OP);                           \
> +}
> +#endif
> +
>  #define MD_UNWIND_SUPPORT "config/pa/linux-unwind.h"

Awesome, I hope this works. Thanks Randolph and Dave for the
sleuthing!

c.