5495cc558b
* alpha/osf.h (TARGET_HAS_XFLOATING_LIBS): Define.
* alpha/osf5.h: New file.
* configure.in (alpha-*-osf5): Add it to tm_file.
* emit-rtl.c (operand_subword): Support TFmode on a 64-bit target.
* alpha-protos.h (alpha_emit_xfloating_arith): Declare.
(alpha_emit_xfloating_cvt, function_arg): Declare.
* alpha.c (alpha_emit_conditional_branch): Call
alpha_emit_xfloating_compare for TFmode compares.
(alpha_lookup_xfloating_lib_func): New.
(alpha_compute_xfloating_mode_arg): New.
(alpha_emit_xfloating_libcall): New.
(alpha_emit_xfloating_arith): New.
(alpha_emit_xfloating_compare): New.
(alpha_emit_xfloating_cvt): New.
(print_operand): Add default abort case.
(function_arg): Mind FUNCTION_ARG_PASS_BY_REFERENCE.
* alpha.h (TARGET_HAS_XFLOATING_LIBS): New.
(BIGGEST_ALIGNMENT): Increase to 128 bits.
(RETURN_IN_MEMORY): True for TF/TCmode.
(ALPHA_ARG_SIZE): TF/TCmode is passed indirect.
(FUNCTION_ARG): Move to function_arg.
(FUNCTION_ARG_PASS_BY_REFERENCE): New.
(ASM_OUTPUT_LONG_DOUBLE): New.
(ASM_OUTPUT_DOUBLE): Always output bits.
* alpha.md (addtf3, divtf3, multf3, subtf3, cmptf): New.
(fix_trunctfdi2, floatditf2, floatunsditf2): New.
(extenddftf2, trunctfdf2): New.
From-SVN: r31579
143 lines
5.1 KiB
C
143 lines
5.1 KiB
C
/* Definitions of target machine for GNU compiler, for DEC Alpha on OSF/1.
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Copyright (C) 1992, 93, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.
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Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* As of OSF 4.0, as can subtract adjacent labels. */
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#undef TARGET_AS_CAN_SUBTRACT_LABELS
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#define TARGET_AS_CAN_SUBTRACT_LABELS 1
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/* The GEM libraries for X_float are present, though not used by C. */
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#undef TARGET_HAS_XFLOATING_LIBS
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#define TARGET_HAS_XFLOATING_LIBS 1
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/* Names to predefine in the preprocessor for this target machine. */
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#define CPP_PREDEFINES "\
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-Dunix -D__osf__ -D_LONGLONG -DSYSTYPE_BSD \
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-D_SYSTYPE_BSD -Asystem(unix) -Asystem(xpg4)"
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/* Accept DEC C flags for multithreaded programs. We use _PTHREAD_USE_D4
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instead of PTHREAD_USE_D4 since both have the same effect and the former
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doesn't invade the users' namespace. */
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#undef CPP_SUBTARGET_SPEC
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#define CPP_SUBTARGET_SPEC \
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"%{pthread|threads:-D_REENTRANT} %{threads:-D_PTHREAD_USE_D4}"
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/* Under OSF4, -p and -pg require -lprof1, and -lprof1 requires -lpdf. */
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#define LIB_SPEC \
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"%{p|pg:-lprof1%{pthread|threads:_r} -lpdf} %{a:-lprof2} \
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%{threads: -lpthreads} %{pthread|threads: -lpthread -lmach -lexc} -lc"
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/* Pass "-G 8" to ld because Alpha's CC does. Pass -O3 if we are
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optimizing, -O1 if we are not. Pass -shared, -non_shared or
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-call_shared as appropriate. Also pass -pg. */
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#define LINK_SPEC \
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"-G 8 %{O*:-O3} %{!O*:-O1} %{static:-non_shared} \
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%{!static:%{shared:-shared} %{!shared:-call_shared}} %{pg} %{taso} \
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%{rpath*}"
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#define STARTFILE_SPEC \
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"%{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}"
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#define MD_STARTFILE_PREFIX "/usr/lib/cmplrs/cc/"
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#define ASM_FILE_START(FILE) \
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{ \
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alpha_write_verstamp (FILE); \
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fprintf (FILE, "\t.set noreorder\n"); \
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fprintf (FILE, "\t.set volatile\n"); \
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fprintf (FILE, "\t.set noat\n"); \
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if (TARGET_SUPPORT_ARCH) \
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fprintf (FILE, "\t.arch %s\n", \
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alpha_cpu == PROCESSOR_EV6 ? "ev6" \
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: (alpha_cpu == PROCESSOR_EV5 \
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? (TARGET_MAX ? "pca56" : TARGET_BWX ? "ev56" : "ev5") \
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: "ev4")); \
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\
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ASM_OUTPUT_SOURCE_FILENAME (FILE, main_input_filename); \
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}
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/* No point in running CPP on our assembler output. */
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#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GAS) != 0
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/* Don't pass -g to GNU as, because some versions don't accept this option. */
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#define ASM_SPEC "%{malpha-as:-g} -nocpp %{pg}"
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#else
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/* In OSF/1 v3.2c, the assembler by default does not output file names which
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causes mips-tfile to fail. Passing -g to the assembler fixes this problem.
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??? Strictly speaking, we need -g only if the user specifies -g. Passing
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it always means that we get slightly larger than necessary object files
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if the user does not specify -g. If we don't pass -g, then mips-tfile
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will need to be fixed to work in this case. Pass -O0 since some
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optimization are broken and don't help us anyway. */
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#define ASM_SPEC "%{!mgas:-g} -nocpp %{pg} -O0"
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#endif
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/* Specify to run a post-processor, mips-tfile after the assembler
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has run to stuff the ecoff debug information into the object file.
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This is needed because the Alpha assembler provides no way
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of specifying such information in the assembly file. */
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#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GAS) != 0
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#define ASM_FINAL_SPEC "\
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%{malpha-as: %{!mno-mips-tfile: \
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\n mips-tfile %{v*: -v} \
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%{K: -I %b.o~} \
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%{!K: %{save-temps: -I %b.o~}} \
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%{c:%W{o*}%{!o*:-o %b.o}}%{!c:-o %U.o} \
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%{.s:%i} %{!.s:%g.s}}}"
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#else
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#define ASM_FINAL_SPEC "\
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%{!mgas: %{!mno-mips-tfile: \
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\n mips-tfile %{v*: -v} \
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%{K: -I %b.o~} \
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%{!K: %{save-temps: -I %b.o~}} \
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%{c:%W{o*}%{!o*:-o %b.o}}%{!c:-o %U.o} \
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%{.s:%i} %{!.s:%g.s}}}"
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#endif
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/* Indicate that we have a stamp.h to use. */
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#ifndef CROSS_COMPILE
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#define HAVE_STAMP_H 1
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#endif
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/* Attempt to turn on access permissions for the stack. */
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#define TRANSFER_FROM_TRAMPOLINE \
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void \
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__enable_execute_stack (addr) \
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void *addr; \
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{ \
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long size = getpagesize (); \
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long mask = ~(size-1); \
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char *page = (char *) (((long) addr) & mask); \
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char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \
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\
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/* 7 is PROT_READ | PROT_WRITE | PROT_EXEC */ \
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if (mprotect (page, end - page, 7) < 0) \
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perror ("mprotect of trampoline code"); \
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}
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