diff options
Diffstat (limited to 'gcc/config/arm/arm.h')
| -rw-r--r-- | gcc/config/arm/arm.h | 52 |
1 files changed, 45 insertions, 7 deletions
diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h index 0c6131b6d93..02f0656befb 100644 --- a/gcc/config/arm/arm.h +++ b/gcc/config/arm/arm.h @@ -1,5 +1,6 @@ /* Definitions of target machine for GNU compiler, for ARM. - Copyright (C) 1991, 93, 94, 95, 96, 97, 98, 1999 Free Software Foundation, Inc. + Copyright (C) 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 + Free Software Foundation, Inc. Contributed by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl) and Martin Simmons (@harleqn.co.uk). More major hacks by Richard Earnshaw (rwe11@cl.cam.ac.uk) @@ -480,7 +481,25 @@ extern int arm_is_6_or_7; /* Nonzero if PIC code requires explicit qualifiers to generate PLT and GOT relocs rather than the assembler doing so implicitly. Subtargets can override this if required. */ +#ifndef NEED_PLT_GOT #define NEED_PLT_GOT 0 +#endif + +/* Nonzero if we need to refer to the GOT with a PC-relative + offset. In other words, generate + + .word _GLOBAL_OFFSET_TABLE_ - [. - (.Lxx + 8)] + + rather than + + .word _GLOBAL_OFFSET_TABLE_ - (.Lxx + 8) + + The default is true, which matches NetBSD. Subtargets can + override this if required. */ +#ifndef GOT_PCREL +#define GOT_PCREL 1 +#endif + /* Target machine storage Layout. */ @@ -708,7 +727,7 @@ extern const char * structure_size_string; if (flag_pic) \ { \ fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ - call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 0; \ + call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ } \ else if (TARGET_APCS_STACK) \ { \ @@ -1245,6 +1264,9 @@ do { \ for (regno = 0; regno <= 10; regno++) \ if (regs_ever_live[regno] && ! call_used_regs[regno]) \ saved_hard_reg = 1, offset += 4; \ + /* PIC register is a fixed reg, so call_used_regs set. */ \ + if (flag_pic && regs_ever_live[PIC_OFFSET_TABLE_REGNUM]) \ + saved_hard_reg = 1, offset += 4; \ for (regno = 16; regno <=23; regno++) \ if (regs_ever_live[regno] && ! call_used_regs[regno]) \ offset += 12; \ @@ -1799,6 +1821,10 @@ extern int arm_pic_register; && (! CONSTANT_POOL_ADDRESS_P (X) \ || ! symbol_mentioned_p (get_pool_constant (X)))) +/* We need to know when we are making a constant pool; this determines + whether data needs to be in the GOT or can be referenced via a GOT + offset. */ +extern int making_const_table; /* Condition code information. */ @@ -2031,6 +2057,19 @@ extern struct rtx_def *arm_compare_op0, *arm_compare_op1; fputs(")", STREAM); \ } \ else output_addr_const(STREAM, X); \ + \ + /* Mark symbols as position independent. We only do this in the \ + .text segment, not in the .data segment. */ \ + if (NEED_PLT_GOT && flag_pic && making_const_table && \ + (GET_CODE(X) == SYMBOL_REF || GET_CODE(X) == LABEL_REF)) \ + { \ + if (GET_CODE(X) == SYMBOL_REF && CONSTANT_POOL_ADDRESS_P(X)) \ + fprintf(STREAM, "(GOTOFF)"); \ + else if (GET_CODE (X) == LABEL_REF) \ + fprintf(STREAM, "(GOTOFF)"); \ + else \ + fprintf(STREAM, "(GOT)"); \ + } \ } /* Output code to add DELTA to the first argument, and then jump to FUNCTION. @@ -2110,7 +2149,6 @@ struct rtx_def; #ifndef HOST_WIDE_INT #include "hwint.h" #endif -#define Hint HOST_WIDE_INT #ifndef HAVE_MACHINE_MODES #include "machmode.h" @@ -2126,8 +2164,8 @@ struct rtx_def; void arm_override_options PROTO ((void)); int use_return_insn PROTO ((int)); -int const_ok_for_arm PROTO ((Hint)); -int arm_split_constant RTX_CODE_PROTO ((Rcode, Mmode, Hint, Rtx, Rtx, int)); +int const_ok_for_arm PROTO ((HOST_WIDE_INT)); +int arm_split_constant RTX_CODE_PROTO ((Rcode, Mmode, HOST_WIDE_INT, Rtx, Rtx, int)); Rcode arm_canonicalize_comparison RTX_CODE_PROTO ((Rcode, Rtx *)); int arm_return_in_memory PROTO ((Tree)); int legitimate_pic_operand_p PROTO ((Rtx)); @@ -2168,9 +2206,9 @@ Rcode minmax_code PROTO ((Rtx)); int adjacent_mem_locations PROTO ((Rtx, Rtx)); int load_multiple_operation PROTO ((Rtx, Mmode)); int store_multiple_operation PROTO ((Rtx, Mmode)); -int load_multiple_sequence PROTO ((Rtx *, int, int *, int *, Hint *)); +int load_multiple_sequence PROTO ((Rtx *, int, int *, int *, HOST_WIDE_INT *)); char * emit_ldm_seq PROTO ((Rtx *, int)); -int store_multiple_sequence PROTO ((Rtx *, int, int *, int *, Hint *)); +int store_multiple_sequence PROTO ((Rtx *, int, int *, int *, HOST_WIDE_INT *)); char * emit_stm_seq PROTO ((Rtx *, int)); int arm_valid_machine_decl_attribute PROTO ((Tree, Tree, Tree)); Rtx arm_gen_load_multiple PROTO ((int, int, Rtx, int, int, int, int, int)); |