1*404b540aSrobert /* Configuration file for Symbian OS on ARM processors. 2*404b540aSrobert Copyright (C) 2004, 2005 3*404b540aSrobert Free Software Foundation, Inc. 4*404b540aSrobert Contributed by CodeSourcery, LLC 5*404b540aSrobert 6*404b540aSrobert This file is part of GCC. 7*404b540aSrobert 8*404b540aSrobert GCC is free software; you can redistribute it and/or modify it 9*404b540aSrobert under the terms of the GNU General Public License as published 10*404b540aSrobert by the Free Software Foundation; either version 2, or (at your 11*404b540aSrobert option) any later version. 12*404b540aSrobert 13*404b540aSrobert GCC is distributed in the hope that it will be useful, but WITHOUT 14*404b540aSrobert ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 15*404b540aSrobert or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 16*404b540aSrobert License for more details. 17*404b540aSrobert 18*404b540aSrobert You should have received a copy of the GNU General Public License 19*404b540aSrobert along with GCC; see the file COPYING. If not, write to 20*404b540aSrobert the Free Software Foundation, 51 Franklin Street, Fifth Floor, 21*404b540aSrobert Boston, MA 02110-1301, USA. */ 22*404b540aSrobert 23*404b540aSrobert /* Do not expand builtin functions (unless explicitly prefixed with 24*404b540aSrobert "__builtin"). Symbian OS code relies on properties of the standard 25*404b540aSrobert library that go beyond those guaranteed by the ANSI/ISO standard. 26*404b540aSrobert For example, "memcpy" works even with overlapping memory, like 27*404b540aSrobert "memmove". We cannot simply set flag_no_builtin in arm.c because 28*404b540aSrobert (a) flag_no_builtin is not declared in language-independent code, 29*404b540aSrobert and (b) that would prevent users from explicitly overriding the 30*404b540aSrobert default with -fbuiltin, which may sometimes be useful. 31*404b540aSrobert 32*404b540aSrobert Make all symbols hidden by default. Symbian OS expects that all 33*404b540aSrobert exported symbols will be explicitly marked with 34*404b540aSrobert "__declspec(dllexport)". 35*404b540aSrobert 36*404b540aSrobert Enumeration types use 4 bytes, even if the enumerals are small, 37*404b540aSrobert unless explicitly overridden. 38*404b540aSrobert 39*404b540aSrobert The wchar_t type is a 2-byte type, unless explicitly 40*404b540aSrobert overridden. */ 41*404b540aSrobert #define CC1_SPEC \ 42*404b540aSrobert "%{!fbuiltin:%{!fno-builtin:-fno-builtin}} " \ 43*404b540aSrobert "%{!fvisibility=*:-fvisibility=hidden} " \ 44*404b540aSrobert "%{!fshort-enums:%{!fno-short-enums:-fno-short-enums}} " \ 45*404b540aSrobert "%{!fshort-wchar:%{!fno-short-wchar:-fshort-wchar}} " 46*404b540aSrobert #define CC1PLUS_SPEC CC1_SPEC 47*404b540aSrobert 48*404b540aSrobert /* Symbian OS does not use crt*.o, unlike the generic unknown-elf 49*404b540aSrobert configuration. */ 50*404b540aSrobert #undef STARTFILE_SPEC 51*404b540aSrobert #define STARTFILE_SPEC "" 52*404b540aSrobert 53*404b540aSrobert #undef ENDFILE_SPEC 54*404b540aSrobert #define ENDFILE_SPEC "" 55*404b540aSrobert 56*404b540aSrobert /* Do not link with any libraries by default. On Symbian OS, the user 57*404b540aSrobert must supply all required libraries on the command line. */ 58*404b540aSrobert #undef LIB_SPEC 59*404b540aSrobert #define LIB_SPEC "" 60*404b540aSrobert 61*404b540aSrobert /* Support the "dllimport" attribute. */ 62*404b540aSrobert #define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1 63*404b540aSrobert 64*404b540aSrobert /* Symbian OS assumes ARM V5 or above. Since -march=armv5 is 65*404b540aSrobert equivalent to making the ARM 10TDMI core the default, we can set 66*404b540aSrobert SUBTARGET_CPU_DEFAULT and get an equivalent effect. */ 67*404b540aSrobert #undef SUBTARGET_CPU_DEFAULT 68*404b540aSrobert #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi 69*404b540aSrobert 70*404b540aSrobert /* The assembler should assume VFP FPU format, and armv5t. */ 71*404b540aSrobert #undef SUBTARGET_ASM_FLOAT_SPEC 72*404b540aSrobert #define SUBTARGET_ASM_FLOAT_SPEC \ 73*404b540aSrobert "%{!mfpu=*:-mfpu=vfp} %{!mcpu=*:%{!march=*:-march=armv5t}}" 74*404b540aSrobert 75*404b540aSrobert /* SymbianOS provides the BPABI routines in a separate library. 76*404b540aSrobert Therefore, we do not need to define any of them in libgcc. */ 77*404b540aSrobert #undef RENAME_LIBRARY 78*404b540aSrobert #define RENAME_LIBRARY(GCC_NAME, AEABI_NAME) /* empty */ 79*404b540aSrobert 80*404b540aSrobert /* Define the __symbian__ macro. */ 81*404b540aSrobert #undef TARGET_OS_CPP_BUILTINS 82*404b540aSrobert #define TARGET_OS_CPP_BUILTINS() \ 83*404b540aSrobert do \ 84*404b540aSrobert { \ 85*404b540aSrobert /* Include the default BPABI stuff. */ \ 86*404b540aSrobert TARGET_BPABI_CPP_BUILTINS (); \ 87*404b540aSrobert builtin_define ("__symbian__"); \ 88*404b540aSrobert } \ 89*404b540aSrobert while (false) 90*404b540aSrobert 91*404b540aSrobert /* On SymbianOS, these sections are not writable, so we use "a", 92*404b540aSrobert rather than "aw", for the section attributes. */ 93*404b540aSrobert #undef ARM_EABI_CTORS_SECTION_OP 94*404b540aSrobert #define ARM_EABI_CTORS_SECTION_OP \ 95*404b540aSrobert "\t.section\t.init_array,\"a\",%init_array" 96*404b540aSrobert #undef ARM_EABI_DTORS_SECTION_OP 97*404b540aSrobert #define ARM_EABI_DTORS_SECTION_OP \ 98*404b540aSrobert "\t.section\t.fini_array,\"a\",%fini_array" 99*404b540aSrobert 100*404b540aSrobert /* SymbianOS cannot merge entities with vague linkage at runtime. */ 101*404b540aSrobert #define TARGET_ARM_DYNAMIC_VAGUE_LINKAGE_P false 102