netbsd-elf.h revision 1.3
1/* Definitions for SH running NetBSD using ELF 2 Copyright (C) 2002-2013 Free Software Foundation, Inc. 3 Contributed by Wasabi Systems, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING3. If not see 19<http://www.gnu.org/licenses/>. */ 20 21/* Run-time Target Specification. */ 22 23/* Extra specs needed for NetBSD SuperH ELF targets. */ 24 25#undef SUBTARGET_EXTRA_SPECS 26#define SUBTARGET_EXTRA_SPECS \ 27 { "netbsd_entry_point", NETBSD_ENTRY_POINT }, 28 29 30#define TARGET_OS_CPP_BUILTINS() \ 31 do \ 32 { \ 33 NETBSD_OS_CPP_BUILTINS_ELF(); \ 34 builtin_define ("__NO_LEADING_UNDERSCORES__"); \ 35 } \ 36 while (0) 37 38/* Provide a LINK_SPEC appropriate for a NetBSD/sh ELF target. 39 We use the SH_LINK_SPEC from sh/sh.h, and define the appropriate 40 SUBTARGET_LINK_SPEC that pulls in what we need from a generic 41 NetBSD ELF LINK_SPEC. */ 42 43/* LINK_EMUL_PREFIX from sh/elf.h */ 44#undef SUBTARGET_LINK_EMUL_SUFFIX 45#define SUBTARGET_LINK_EMUL_SUFFIX "_nbsd" 46 47#undef SUBTARGET_LINK_SPEC 48#define SUBTARGET_LINK_SPEC NETBSD_LINK_SPEC_ELF 49 50#undef LINK_SPEC 51#define LINK_SPEC SH_LINK_SPEC 52 53#define NETBSD_ENTRY_POINT "__start" 54 55/* Provide a CPP_SPEC appropriate for NetBSD. */ 56#undef SUBTARGET_CPP_SPEC 57#define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC 58 59#undef TARGET_DEFAULT 60#define TARGET_DEFAULT \ 61 (TARGET_CPU_DEFAULT | TARGET_ENDIAN_DEFAULT) 62 63/* Define because we use the label and we do not need them. */ 64#define NO_PROFILE_COUNTERS 1 65 66#undef FUNCTION_PROFILER 67#define FUNCTION_PROFILER(STREAM,LABELNO) \ 68do \ 69 { \ 70 if (TARGET_SHMEDIA32 || TARGET_SHMEDIA64) \ 71 { \ 72 /* FIXME */ \ 73 sorry ("unimplemented-shmedia profiling"); \ 74 } \ 75 else \ 76 { \ 77 fprintf((STREAM), "\tmov.l\t%sLP%d,r1\n", \ 78 LOCAL_LABEL_PREFIX, (LABELNO)); \ 79 fprintf((STREAM), "\tmova\t%sLP%dr,r0\n", \ 80 LOCAL_LABEL_PREFIX, (LABELNO)); \ 81 fprintf((STREAM), "\tjmp\t@r1\n"); \ 82 fprintf((STREAM), "\tnop\n"); \ 83 fprintf((STREAM), "\t.align\t2\n"); \ 84 fprintf((STREAM), "%sLP%d:\t.long\t__mcount\n", \ 85 LOCAL_LABEL_PREFIX, (LABELNO)); \ 86 fprintf((STREAM), "%sLP%dr:\n", LOCAL_LABEL_PREFIX, (LABELNO)); \ 87 } \ 88 } \ 89while (0) 90 91/* Since libgcc is compiled with -fpic for this target, we can't use 92 __sdivsi3_1 as the division strategy for -O0 and -Os. */ 93#undef SH_DIV_STRATEGY_DEFAULT 94#define SH_DIV_STRATEGY_DEFAULT SH_DIV_CALL2 95#undef SH_DIV_STR_FOR_SIZE 96#define SH_DIV_STR_FOR_SIZE "call2" 97 98#undef SUBTARGET_OVERRIDE_OPTIONS 99#define SUBTARGET_OVERRIDE_OPTIONS \ 100 do \ 101 { \ 102 /* Set -musermode if it hasn't been specified. */ \ 103 if (global_options_set.x_TARGET_USERMODE == 0) \ 104 TARGET_USERMODE = true; \ 105 } \ 106 while (0) 107