diff options
Diffstat (limited to 'contrib/gcc/config/i386/lynx.h')
| -rw-r--r-- | contrib/gcc/config/i386/lynx.h | 94 |
1 files changed, 57 insertions, 37 deletions
diff --git a/contrib/gcc/config/i386/lynx.h b/contrib/gcc/config/i386/lynx.h index a926d14067c4c..799225abc979e 100644 --- a/contrib/gcc/config/i386/lynx.h +++ b/contrib/gcc/config/i386/lynx.h @@ -1,5 +1,6 @@ -/* Definitions for Intel 386 running LynxOS. - Copyright (C) 1993, 1995, 1996, 2002 Free Software Foundation, Inc. +/* Definitions for LynxOS on i386. + Copyright (C) 1993, 1995, 1996, 2002, 2004, 2005 + Free Software Foundation, Inc. This file is part of GCC. @@ -15,57 +16,76 @@ 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 COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ -#define TARGET_VERSION fprintf (stderr, " (80386, LYNX BSD syntax)"); +#define TARGET_VERSION fputs (" (i386/LynxOS)", stderr); #define TARGET_OS_CPP_BUILTINS() \ do \ { \ - builtin_define_std ("I386"); \ - builtin_define_std ("Lynx"); \ - builtin_define_std ("IBITS32"); \ - builtin_assert ("system=unix"); \ - builtin_assert ("system=lynx"); \ + builtin_define ("__LITTLE_ENDIAN__"); \ + builtin_define ("__x86__"); \ } \ while (0) -/* The prefix to add to user-visible assembler symbols. */ +/* The svr4 ABI for the i386 says that records and unions are returned + in memory. */ -/* Override the svr3 convention of adding a leading underscore. */ +#define DEFAULT_PCC_STRUCT_RETURN 1 -#undef USER_LABEL_PREFIX -#define USER_LABEL_PREFIX "" +/* BSS_SECTION_ASM_OP gets defined i386/unix.h. */ -/* Apparently LynxOS clobbers ebx when you call into the OS. */ +#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ + asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) -#undef CALL_USED_REGISTERS -#define CALL_USED_REGISTERS \ -/*ax,dx,cx,bx,si,di,bp,sp,st,st1,st2,st3,st4,st5,st6,st7,arg*/ \ -{ 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } +/* LynxOS's GDB counts the floating point registers from 16. */ -/* Prefix for internally generated assembler labels. If we aren't using - underscores, we are using prefix `.'s to identify labels that should - be ignored, as in `i386/gas.h' --karl@cs.umb.edu */ +#undef DBX_REGISTER_NUMBER +#define DBX_REGISTER_NUMBER(n) \ + (TARGET_64BIT ? dbx64_register_map[n] \ + : (n) == 0 ? 0 \ + : (n) == 1 ? 2 \ + : (n) == 2 ? 1 \ + : (n) == 3 ? 3 \ + : (n) == 4 ? 6 \ + : (n) == 5 ? 7 \ + : (n) == 6 ? 5 \ + : (n) == 7 ? 4 \ + : ((n) >= FIRST_STACK_REG && (n) <= LAST_STACK_REG) ? (n) + 8 \ + : (-1)) + +/* 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. -#undef LPREFIX -#define LPREFIX ".L" + This is used to align code labels according to Intel recommendations. */ -/* The prefix to add to user-visible assembler symbols. */ +#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN +#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ + do { \ + 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)); \ + } \ + } while (0) +#endif -#undef USER_LABEL_PREFIX -#define USER_LABEL_PREFIX "" +/* Undefine SUBTARGET_EXTRA_SPECS it is empty anyway. We define it in + config/lynx.h. */ -/* If user-symbols don't have underscores, - then it must take more than `L' to identify - a label that should be ignored. */ +#undef SUBTARGET_EXTRA_SPECS -/* This is how to store into the string BUF - 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'. */ +/* Undefine the definition from att.h to enable our default. */ -#undef ASM_GENERATE_INTERNAL_LABEL -#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \ - sprintf ((BUF), ".%s%ld", (PREFIX), (long)(NUMBER)) +#undef ASM_OUTPUT_ALIGN + +/* Undefine the definition from elfos.h to enable our default. */ + +#undef PREFERRED_DEBUGGING_TYPE + +/* The file i386.c defines TARGET_HAVE_TLS unconditionally if + HAVE_AS_TLS is defined. HAVE_AS_TLS is defined as gas support for + TLS is detected by configure. We undefine it here. */ + +#undef HAVE_AS_TLS |