| /* Definitions of target machine for GNU compiler, |
| for i386/ELF NetBSD systems. |
| Copyright (C) 2001 Free Software Foundation, Inc. |
| Contributed by matthew green <mrg@eterna.com.au> |
| |
| 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. */ |
| |
| /* Provide a LIB_SPEC appropriate for NetBSD. Just select the appropriate |
| libc, depending on whether we're doing profiling; if `-posix' is specified, |
| link against the appropriate libposix first. */ |
| |
| #undef LIB_SPEC |
| #define LIB_SPEC \ |
| "%{posix:%{!p:%{!pg:-lposix}}%{p:-lposix_p}%{pg:-lposix_p}} \ |
| %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}" |
| |
| /* Provide a STARTFILE_SPEC appropriate for NetBSD ELF targets. Here we |
| provide support for the special GCC option -static. On ELF targets, |
| we also add the crtbegin.o file which provides part of the support |
| for getting C++ file-scope static objects constructed before entering |
| `main'. We use the NetBSD crt0. */ |
| |
| #undef STARTFILE_SPEC |
| #define STARTFILE_SPEC \ |
| "%{!shared: \ |
| %{pg:gcrt0%O%s} \ |
| %{!pg: \ |
| %{p:gcrt0%O%s} \ |
| %{!p:crt0%O%s}}} \ |
| %{!shared:crtbegin%O%s} %{shared:crtbeginS%O%s}" |
| |
| /* Provide an ENDFILE_SPEC appropriate for NetBSD ELF targets. Here we |
| add crtend.o, which provides part of the support for getting C++ |
| file-scope static objects deconstructed after exiting `main'. */ |
| |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC \ |
| "%{!shared:crtend%O%s} %{shared:crtendS%O%s}" |
| |
| /* Provide a LINK_SPEC appropriate for a NetBSD/i386 ELF target. Only |
| the linker emulation is i386-specific. The rest are |
| common to all ELF targets, except for the name of the start function. */ |
| |
| #undef LINK_SPEC |
| #define LINK_SPEC \ |
| "-m elf_i386 \ |
| %{assert*} %{R*} \ |
| %{shared:-shared} \ |
| %{!shared: \ |
| -dp \ |
| %{!nostdlib:%{!r*:%{!e*:-e __start}}} \ |
| %{!static: \ |
| -dy %{rdynamic:-export-dynamic} \ |
| %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}} \ |
| %{static:-static}}" |
| |
| /* Provide a CPP_SPEC appropriate for NetBSD. Current we just deal with |
| the GCC option `-posix'. */ |
| |
| #undef CPP_SPEC |
| #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}" |
| |
| /* Provide an ASM_SPEC appropriate for NetBSD. Currently we only deal |
| with the options for generating PIC code. */ |
| |
| #undef ASM_SPEC |
| #define ASM_SPEC " %| %{fpic:-k} %{fPIC:-k -K}" |
| |
| /* Provide a LIB_SPEC appropriate for NetBSD. Just select the appropriate |
| libc, depending on whether we're doing profiling. */ |
| |
| #undef LIB_SPEC |
| #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}" |
| |
| /* This defines which switch letters take arguments. */ |
| #undef SWITCH_TAKES_ARG |
| #define SWITCH_TAKES_ARG(CHAR) \ |
| (DEFAULT_SWITCH_TAKES_ARG(CHAR) \ |
| || (CHAR) == 'R') |
| |
| /* Implicit library calls should use memcpy, not bcopy, etc. */ |
| |
| #define TARGET_MEM_FUNCTIONS |
| |
| /* Names to predefine in the preprocessor for this target machine. */ |
| |
| #define CPP_PREDEFINES "\ |
| -Di386 -D__NetBSD__ -D__ELF__ -Asystem(unix) -Asystem(NetBSD)" |
| |
| /* Make gcc agree with <machine/ansi.h> */ |
| |
| #undef SIZE_TYPE |
| #define SIZE_TYPE "unsigned int" |
| |
| #undef PTRDIFF_TYPE |
| #define PTRDIFF_TYPE "int" |
| |
| #undef WCHAR_TYPE |
| #define WCHAR_TYPE "int" |
| |
| #undef WCHAR_UNSIGNED |
| #define WCHAR_UNSIGNED 0 |
| |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE 32 |
| |
| #undef WINT_TYPE |
| #define WINT_TYPE "int" |
| |
| /* Output assembler code to FILE to increment profiler label # LABELNO |
| for profiling a function entry. Under NetBSD/i386, the assembler does |
| nothing special with -pg. */ |
| |
| #undef ASM_APP_ON |
| #define ASM_APP_ON "#APP\n" |
| |
| #undef ASM_APP_OFF |
| #define ASM_APP_OFF "#NO_APP\n" |
| |
| #undef ASM_FINAL_SPEC |
| #define ASM_FINAL_SPEC "%{pipe:-}" |
| |
| #undef DBX_REGISTER_NUMBER |
| #define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n] |
| |
| #undef NO_PROFILE_COUNTERS |
| #define NO_PROFILE_COUNTERS |
| |
| #undef HAS_INIT_SECTION |
| |
| /* This is how we tell the assembler that two symbols have the same value. */ |
| |
| #define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \ |
| do { assemble_name(FILE, NAME1); \ |
| fputs(" = ", FILE); \ |
| assemble_name(FILE, NAME2); \ |
| fputc('\n', FILE); } while (0) |
| |
| /* A C statement to output to the stdio stream FILE an assembler |
| command to advance the location counter to a multiple of 1<<LOG |
| bytes if it is within MAX_SKIP bytes. |
| |
| This is used to align code labels according to Intel recommendations. */ |
| |
| #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN |
| #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP) \ |
| if ((LOG) != 0) { \ |
| if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ |
| else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ |
| } |
| #endif |
| |
| /* |
| * We always use gas here, so we don't worry about ECOFF assembler problems. |
| */ |
| #undef TARGET_GAS |
| #define TARGET_GAS 1 |
| |
| /* Default to pcc-struct-return, because this is the ELF abi and |
| we don't care about compatibility with older gcc versions. */ |
| #define DEFAULT_PCC_STRUCT_RETURN 1 |
| |
| #undef TARGET_VERSION |
| #define TARGET_VERSION fprintf (stderr, " (NetBSD/i386 ELF target)"); |