| /* Configuration file for Symbian OS on ARM processors. |
| Copyright (C) 2004-2022 Free Software Foundation, Inc. |
| Contributed by CodeSourcery, LLC |
| |
| This file is part of GCC. |
| |
| GCC 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 3, or (at your |
| option) any later version. |
| |
| GCC 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 GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* Do not expand builtin functions (unless explicitly prefixed with |
| "__builtin"). Symbian OS code relies on properties of the standard |
| library that go beyond those guaranteed by the ANSI/ISO standard. |
| For example, "memcpy" works even with overlapping memory, like |
| "memmove". We cannot simply set flag_no_builtin in arm.cc because |
| (a) flag_no_builtin is not declared in language-independent code, |
| and (b) that would prevent users from explicitly overriding the |
| default with -fbuiltin, which may sometimes be useful. |
| |
| Make all symbols hidden by default. Symbian OS expects that all |
| exported symbols will be explicitly marked with |
| "__declspec(dllexport)". |
| |
| Enumeration types use 4 bytes, even if the enumerals are small, |
| unless explicitly overridden. |
| |
| The wchar_t type is a 2-byte type, unless explicitly |
| overridden. */ |
| #define CC1_SPEC \ |
| "%{!fbuiltin:%{!fno-builtin:-fno-builtin}} " \ |
| "%{!fvisibility=*:-fvisibility=hidden} " \ |
| "%{!fshort-enums:%{!fno-short-enums:-fno-short-enums}} " \ |
| "%{!fshort-wchar:%{!fno-short-wchar:-fshort-wchar}} " |
| #define CC1PLUS_SPEC CC1_SPEC |
| |
| /* Symbian OS does not use crt*.o, unlike the generic unknown-elf |
| configuration. */ |
| #undef STARTFILE_SPEC |
| #define STARTFILE_SPEC "" |
| |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC "" |
| |
| /* Do not link with any libraries by default. On Symbian OS, the user |
| must supply all required libraries on the command line. */ |
| #undef LIB_SPEC |
| #define LIB_SPEC "" |
| |
| /* Support the "dllimport" attribute. */ |
| #define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1 |
| |
| /* The assembler should assume VFP FPU format, and armv5t. */ |
| #undef SUBTARGET_ASM_FLOAT_SPEC |
| #define SUBTARGET_ASM_FLOAT_SPEC \ |
| "%{!mfpu=*:-mfpu=vfp} %{!mcpu=*:%{!march=*:-march=armv5t}}" |
| |
| /* Define the __symbian__ macro. */ |
| #undef TARGET_OS_CPP_BUILTINS |
| #define TARGET_OS_CPP_BUILTINS() \ |
| do \ |
| { \ |
| /* Include the default BPABI stuff. */ \ |
| TARGET_BPABI_CPP_BUILTINS (); \ |
| /* Symbian OS does not support merging symbols across DLL \ |
| boundaries. */ \ |
| builtin_define ("__GXX_MERGED_TYPEINFO_NAMES=0"); \ |
| builtin_define ("__symbian__"); \ |
| } \ |
| while (false) |
| |
| /* On SymbianOS, these sections are not writable, so we use "a", |
| rather than "aw", for the section attributes. */ |
| #undef ARM_EABI_CTORS_SECTION_OP |
| #define ARM_EABI_CTORS_SECTION_OP \ |
| "\t.section\t.init_array,\"a\",%init_array" |
| #undef ARM_EABI_DTORS_SECTION_OP |
| #define ARM_EABI_DTORS_SECTION_OP \ |
| "\t.section\t.fini_array,\"a\",%fini_array" |
| |
| /* SymbianOS cannot merge entities with vague linkage at runtime. */ |
| #define TARGET_ARM_DYNAMIC_VAGUE_LINKAGE_P false |
| |
| #define TARGET_DEFAULT_WORD_RELOCATIONS 1 |
| |
| #define ARM_TARGET2_DWARF_FORMAT DW_EH_PE_absptr |