-/* Definitions of target machine for GNU compiler,
+/* Definitions of target machine for GCC,
for i386/ELF NetBSD systems.
- Copyright (C) 2001 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 2004, 2007 Free Software Foundation, Inc.
Contributed by matthew green <mrg@eterna.com.au>
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC 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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC 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, 675 Mass Ave, Cambridge, MA 02139, 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 approrpiate 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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
-#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'. */
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ NETBSD_OS_CPP_BUILTINS_ELF(); \
+ } \
+ while (0)
-#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. */
+/* Extra specs needed for NetBSD/i386 ELF. */
-#undef ASM_SPEC
-#define ASM_SPEC " %| %{fpic:-k} %{fPIC:-k -K}"
+#undef SUBTARGET_EXTRA_SPECS
+#define SUBTARGET_EXTRA_SPECS \
+ { "netbsd_cpp_spec", NETBSD_CPP_SPEC }, \
+ { "netbsd_entry_point", NETBSD_ENTRY_POINT },
-/* 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}"
+/* Provide a LINK_SPEC appropriate for a NetBSD/i386 ELF target. */
+
+#undef LINK_SPEC
+#define LINK_SPEC NETBSD_LINK_SPEC_ELF
-/* This defines which switch letters take arguments. */
-#undef SWITCH_TAKES_ARG
-#define SWITCH_TAKES_ARG(CHAR) \
- (DEFAULT_SWITCH_TAKES_ARG(CHAR) \
- || (CHAR) == 'R')
+#define NETBSD_ENTRY_POINT "__start"
-/* Implicit library calls should use memcpy, not bcopy, etc. */
-#define TARGET_MEM_FUNCTIONS
+/* Provide a CPP_SPEC appropriate for NetBSD. */
-/* Names to predefine in the preprocessor for this target machine. */
+#undef CPP_SPEC
+#define CPP_SPEC "%(netbsd_cpp_spec)"
-#define CPP_PREDEFINES "\
--Di386 -D__NetBSD__ -D__ELF__ -Asystem(unix) -Asystem(NetBSD)"
/* Make gcc agree with <machine/ansi.h> */
#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 ASM_COMMENT_START
+#define ASM_COMMENT_START "#"
#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
+/* Output assembler code to FILE to call the profiler. */
+
+#undef NO_PROFILE_COUNTERS
+#define NO_PROFILE_COUNTERS 1
-#undef DEFAULT_VTABLE_THUNKS
-#define DEFAULT_VTABLE_THUNKS 1
+#undef FUNCTION_PROFILER
+#define FUNCTION_PROFILER(FILE, LABELNO) \
+{ \
+ if (flag_pic) \
+ fprintf (FILE, "\tcall __mcount@PLT\n"); \
+ else \
+ fprintf (FILE, "\tcall __mcount\n"); \
+}
+
+
+#undef HAS_INIT_SECTION
/* This is how we tell the assembler that two symbols have the same value. */
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) { \
+#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.
- */
+/* We always use gas here, so we don't worry about ECOFF assembler
+ problems. */
#undef TARGET_GAS
#define TARGET_GAS 1
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)");
+/* Attempt to enable execute permissions on the stack. */
+#define ENABLE_EXECUTE_STACK NETBSD_ENABLE_EXECUTE_STACK
+
+#define TARGET_VERSION fprintf (stderr, " (NetBSD/i386 ELF)");
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