| /* Definitions for SPARC running Linux-based GNU systems with ELF. |
| Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. |
| Contributed by Eddie C. Dost (ecd@skynet.be) |
| |
| 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. */ |
| |
| #define LINUX_DEFAULT_ELF |
| |
| /* Don't assume anything about the header files. */ |
| #define NO_IMPLICIT_EXTERN_C |
| |
| #undef HAVE_ATEXIT |
| #define HAVE_ATEXIT |
| |
| /* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is. |
| For now, we play safe. It may change later. */ |
| |
| #if 0 |
| #undef MULTIBYTE_CHARS |
| #define MULTIBYTE_CHARS 1 |
| #endif |
| |
| #ifndef USE_GNULIBC_1 |
| #undef DEFAULT_VTABLE_THUNKS |
| #define DEFAULT_VTABLE_THUNKS 1 |
| #endif |
| |
| /* Use stabs instead of DWARF debug format. */ |
| #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG |
| |
| #include <sparc/sysv4.h> |
| |
| #undef MD_EXEC_PREFIX |
| #undef MD_STARTFILE_PREFIX |
| |
| /* Output at beginning of assembler file. */ |
| /* The .file command should always begin the output. */ |
| #undef ASM_FILE_START |
| #define ASM_FILE_START(FILE) \ |
| do { \ |
| output_file_directive (FILE, main_input_filename); \ |
| fprintf (FILE, "\t.version\t\"01.01\"\n"); \ |
| } while (0) |
| |
| /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add |
| the GNU/Linux magical crtbegin.o file (see crtstuff.c) which |
| provides part of the support for getting C++ file-scope static |
| object constructed before entering `main'. */ |
| |
| #undef STARTFILE_SPEC |
| #define STARTFILE_SPEC \ |
| "%{!shared: \ |
| %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\ |
| crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" |
| |
| /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on |
| the GNU/Linux magical crtend.o file (see crtstuff.c) which |
| provides part of the support for getting C++ file-scope static |
| object constructed before entering `main', followed by a normal |
| GNU/Linux "finalizer" file, `crtn.o'. */ |
| |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC \ |
| "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" |
| |
| /* This is for -profile to use -lc_p instead of -lc. */ |
| #undef CC1_SPEC |
| #define CC1_SPEC "%{profile:-p} \ |
| %{sun4:} %{target:} \ |
| %{mcypress:-mcpu=cypress} \ |
| %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \ |
| %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \ |
| " |
| |
| #undef TARGET_VERSION |
| #define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)"); |
| |
| #undef SIZE_TYPE |
| #define SIZE_TYPE "unsigned int" |
| |
| #undef PTRDIFF_TYPE |
| #define PTRDIFF_TYPE "int" |
| |
| #undef WCHAR_TYPE |
| #define WCHAR_TYPE "long int" |
| |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE BITS_PER_WORD |
| |
| #undef CPP_PREDEFINES |
| #define CPP_PREDEFINES "-D__ELF__ -Dunix -D__sparc__ -Dlinux -Asystem(unix) -Asystem(posix)" |
| |
| #undef CPP_SUBTARGET_SPEC |
| #ifdef USE_GNULIBC_1 |
| #define CPP_SUBTARGET_SPEC \ |
| "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE}" |
| #else |
| #define CPP_SUBTARGET_SPEC \ |
| "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" |
| #endif |
| |
| #undef LIB_SPEC |
| /* We no longer link with libc_p.a or libg.a by default. If you |
| want to profile or debug the GNU/Linux C library, please add |
| -lc_p or -ggdb to LDFLAGS at the link time, respectively. */ |
| #if 1 |
| #ifdef USE_GNULIBC_1 |
| #define LIB_SPEC \ |
| "%{!shared: %{p:-lgmon} %{pg:-lgmon} %{profile:-lgmon -lc_p} \ |
| %{!profile:%{!ggdb:-lc} %{ggdb:-lg}}}" |
| #else |
| #define LIB_SPEC \ |
| "%{shared: -lc} \ |
| %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \ |
| %{profile:-lc_p} %{!profile: -lc}}" |
| #endif |
| #else |
| #define LIB_SPEC \ |
| "%{!shared: \ |
| %{mieee-fp:-lieee} %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} \ |
| %{!p:%{!pg:%{!g*:-lc} %{g*:-lg}}}}" |
| #endif |
| |
| /* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support |
| for the special GCC options -static and -shared, which allow us to |
| link things in one of these three modes by applying the appropriate |
| combinations of options at link-time. We like to support here for |
| as many of the other GNU linker options as possible. But I don't |
| have the time to search for those flags. I am sure how to add |
| support for -soname shared_object_name. H.J. |
| |
| I took out %{v:%{!V:-V}}. It is too much :-(. They can use |
| -Wl,-V. |
| |
| When the -shared link option is used a final link is not being |
| done. */ |
| |
| /* If ELF is the default format, we should not use /lib/elf. */ |
| |
| #undef LINK_SPEC |
| #ifdef USE_GNULIBC_1 |
| #ifndef LINUX_DEFAULT_ELF |
| #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \ |
| %{!shared: \ |
| %{!ibcs: \ |
| %{!static: \ |
| %{rdynamic:-export-dynamic} \ |
| %{!dynamic-linker:-dynamic-linker /lib/elf/ld-linux.so.1} \ |
| %{!rpath:-rpath /lib/elf/}} %{static:-static}}}" |
| #else |
| #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \ |
| %{!shared: \ |
| %{!ibcs: \ |
| %{!static: \ |
| %{rdynamic:-export-dynamic} \ |
| %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.1}} \ |
| %{static:-static}}}" |
| #endif |
| #else |
| #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \ |
| %{!shared: \ |
| %{!ibcs: \ |
| %{!static: \ |
| %{rdynamic:-export-dynamic} \ |
| %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \ |
| %{static:-static}}}" |
| #endif |
| |
| /* The sun bundled assembler doesn't accept -Yd, (and neither does gas). |
| It's safe to pass -s always, even if -g is not used. */ |
| #undef ASM_SPEC |
| #define ASM_SPEC \ |
| "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s %{fpic:-K PIC} %{fPIC:-K PIC}" |
| |
| /* Same as sparc.h */ |
| #undef DBX_REGISTER_NUMBER |
| #define DBX_REGISTER_NUMBER(REGNO) (REGNO) |
| |
| /* We use stabs-in-elf for debugging, because that is what the native |
| toolchain uses. XXX */ |
| #undef PREFERRED_DEBUGGING_TYPE |
| #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG |
| |
| #undef ASM_OUTPUT_ALIGNED_LOCAL |
| #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ |
| do { \ |
| fputs ("\t.local\t", (FILE)); \ |
| assemble_name ((FILE), (NAME)); \ |
| putc ('\n', (FILE)); \ |
| ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \ |
| } while (0) |
| |
| #undef COMMON_ASM_OP |
| #define COMMON_ASM_OP "\t.common" |
| |
| /* This is how to output a definition of an internal numbered label where |
| PREFIX is the class of label and NUM is the number within the class. */ |
| |
| #undef ASM_OUTPUT_INTERNAL_LABEL |
| #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ |
| fprintf (FILE, ".L%s%d:\n", PREFIX, NUM) |
| |
| /* This is how to output a reference to an internal numbered label where |
| PREFIX is the class of label and NUM is the number within the class. */ |
| |
| #undef ASM_OUTPUT_INTERNAL_LABELREF |
| #define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM) \ |
| fprintf (FILE, ".L%s%d", PREFIX, NUM) |
| |
| /* This is how to store into the string LABEL |
| the symbol_ref name of an internal numbered label where |
| PREFIX is the class of label and NUM is the number within the class. |
| This is suitable for output with `assemble_name'. */ |
| |
| #undef ASM_GENERATE_INTERNAL_LABEL |
| #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ |
| sprintf (LABEL, "*.L%s%d", PREFIX, NUM) |
| |
| |
| #if 0 |
| /* Define for support of TFmode long double and REAL_ARITHMETIC. |
| Sparc ABI says that long double is 4 words. GNU/Linux does not support |
| long double yet. */ |
| #define LONG_DOUBLE_TYPE_SIZE 128 |
| #endif |
| |
| /* Override MACHINE_STATE_{SAVE,RESTORE} because we have special |
| traps available which can get and set the condition codes |
| reliably. */ |
| #undef MACHINE_STATE_SAVE |
| #define MACHINE_STATE_SAVE(ID) \ |
| unsigned long int ms_flags, ms_saveret; \ |
| asm volatile("ta 0x20\n\t" \ |
| "mov %%g1, %0\n\t" \ |
| "mov %%g2, %1\n\t" \ |
| : "=r" (ms_flags), "=r" (ms_saveret)); |
| |
| #undef MACHINE_STATE_RESTORE |
| #define MACHINE_STATE_RESTORE(ID) \ |
| asm volatile("mov %0, %%g1\n\t" \ |
| "mov %1, %%g2\n\t" \ |
| "ta 0x21\n\t" \ |
| : /* no outputs */ \ |
| : "r" (ms_flags), "r" (ms_saveret)); |