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Diffstat (limited to 'contrib/gcc/config/alpha/alpha32.h')
| -rw-r--r-- | contrib/gcc/config/alpha/alpha32.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/contrib/gcc/config/alpha/alpha32.h b/contrib/gcc/config/alpha/alpha32.h new file mode 100644 index 0000000..3cbcfe1 --- /dev/null +++ b/contrib/gcc/config/alpha/alpha32.h @@ -0,0 +1,104 @@ +/* Definitions of target machine for GNU compiler, for DEC Alpha + running Windows/NT. + Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc. + + Derived from code + Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) + + Donn Terry, Softway Systems, Inc. + + This file contains the code-generation stuff common to the 32-bit + versions of the DEC/Compaq Alpha architecture. It is shared by + Interix and NT/Win32 ports. It should not contain compile-time + or run-time dependent environment values (such as compiler options + or anything containing a file or pathname.) + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#undef TARGET_WINDOWS_NT +#define TARGET_WINDOWS_NT 1 + +/* WinNT (and thus Interix) use unsigned int */ +#define SIZE_TYPE "unsigned int" + +/* Pointer is 32 bits but the hardware has 64-bit addresses, sign extended. */ +#undef POINTER_SIZE +#define POINTER_SIZE 32 +#define POINTERS_EXTEND_UNSIGNED 0 + +/* We don't change Pmode to the "obvious" SI mode... the above appears + to affect the in-memory size; we want the registers to stay DImode + to match the md file */ + +/* "long" is 32 bits. */ +#undef LONG_TYPE_SIZE +#define LONG_TYPE_SIZE 32 + + +/* Output assembler code for a block containing the constant parts + of a trampoline, leaving space for the variable parts. + + The trampoline should set the static chain pointer to value placed + into the trampoline and should branch to the specified routine. */ + +#undef TRAMPOLINE_TEMPLATE +#define TRAMPOLINE_TEMPLATE(FILE) \ +{ \ + fprintf (FILE, "\tbr $27,$LTRAMPP\n"); \ + fprintf (FILE, "$LTRAMPP:\n\tldl $1,12($27)\n"); \ + fprintf (FILE, "\tldl $27,16($27)\n"); \ + fprintf (FILE, "\tjmp $31,($27),0\n"); \ + fprintf (FILE, "\t.long 0,0\n"); \ +} + +/* Length in units of the trampoline for entering a nested function. */ + +#undef TRAMPOLINE_SIZE +#define TRAMPOLINE_SIZE 24 + +/* Emit RTL insns to initialize the variable parts of a trampoline. + FNADDR is an RTX for the address of the function's pure code. + CXT is an RTX for the static chain value for the function. */ + +#undef INITIALIZE_TRAMPOLINE +#define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ + alpha_initialize_trampoline (TRAMP, FNADDR, CXT, 20, 16, 12) + +/* Output code to add DELTA to the first argument, and then jump to FUNCTION. + Used for C++ multiple inheritance. */ + +#undef ASM_OUTPUT_MI_THUNK +#define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \ +do { \ + char *op, *fn_name = XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0); \ + int reg; \ + \ + /* Mark end of prologue. */ \ + output_end_prologue (FILE); \ + \ + /* Rely on the assembler to macro expand a large delta. */ \ + reg = aggregate_value_p (TREE_TYPE (TREE_TYPE (FUNCTION))) ? 17 : 16; \ + fprintf (FILE, "\tlda $%d,%ld($%d)\n", reg, (long)(DELTA), reg); \ + \ + op = "jsr"; \ + if (current_file_function_operand (XEXP (DECL_RTL (FUNCTION), 0))) \ + op = "br"; \ + fprintf (FILE, "\t%s $31,", op); \ + assemble_name (FILE, fn_name); \ + fputc ('\n', FILE); \ +} while (0) |
