1 /* Definitions of target machine for GNU compiler, for HPs running
2 HPUX using the 64bit runtime model.
3 Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* We can debug dynamically linked executables on hpux11; we also
23 want dereferencing of a NULL pointer to cause a SEGV. */
26 "-E %{mlinker-opt:-O} %{!shared:-u main} %{static:-a archive} %{shared:-shared}"
28 /* Like the default, except no -lg. */
35 %{threads:-lcma -lc_r}}\
36 %{p: -L/lib/libp/ -lc}\
37 %{pg: -L/lib/libp/ -lc}}} /usr/lib/pa20_64/milli.a"
39 /* Under hpux11, the normal location of the `ld' and `as' programs is the
40 /usr/ccs/bin directory. */
44 #define MD_EXEC_PREFIX "/usr/ccs/bin"
47 /* Under hpux11 the normal location of the various pa20_64 *crt*.o files
48 is the /usr/ccs/lib/pa20_64 directory. Some files may also be in the
49 /opt/langtools/lib/pa20_64 directory. */
52 #undef MD_STARTFILE_PREFIX
53 #define MD_STARTFILE_PREFIX "/usr/ccs/lib/pa20_64/"
57 #undef MD_STARTFILE_PREFIX_1
58 #define MD_STARTFILE_PREFIX_1 "/opt/langtools/lib/pa20_64/"
61 /* hpux11 has the new HP assembler. It's still lousy, but it's a whole lot
62 better than the assembler shipped with older versions of hpux. */
63 #undef NEW_HP_ASSEMBLER
64 #define NEW_HP_ASSEMBLER 1
67 #define ASM_FILE_START(FILE) \
70 fputs("\t.LEVEL 2.0w\n", FILE); \
71 else if (TARGET_PA_20) \
72 fputs("\t.LEVEL 2.0\n", FILE); \
73 else if (TARGET_PA_11) \
74 fputs("\t.LEVEL 1.1\n", FILE); \
76 fputs("\t.LEVEL 1.0\n", FILE); \
78 fprintf (FILE, "\t.IMPORT _mcount, CODE\n");\
79 if (write_symbols != NO_DEBUG) \
80 output_file_directive ((FILE), main_input_filename); \
83 /* It looks like DWARF2 will be the easiest debug format to handle on this
85 #define OBJECT_FORMAT_ELF
86 #define DWARF2_DEBUGGING_INFO
87 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
88 /* This isn't quite ready yet. I'm seeing it mess up some line
89 tables. For example, we're getting lines starting/ending at
90 impossible addresses. */
91 #define DWARF2_ASM_LINE_DEBUG_INFO 1
94 /* The rest of this file is copied from the generic svr4.h. One day we
95 would like to simply include svr4.h instead of copying all these
98 #define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata"
100 /* On svr4, we *do* have support for the .init and .fini sections, and we
101 can put stuff in there to be executed before and after `main'. We let
102 crtstuff.c and other files know this by defining the following symbols.
103 The definitions say how to change sections to the .init and .fini
104 sections. This is the same for all known svr4 assemblers. */
106 /* For the time being, we aren't using init sections. `P' relocations
107 are currently used for function references. However, P relocations are
108 treated as data references and data references are bound by dld.sl
109 immediately at program startup. This causes an abort due to undefined
110 weak symbols in crtbegin.o (e.g., __register_frame_info). Possibly
111 Q relocations might avoid this problem but the GNU assembler doesn't
114 #define INIT_SECTION_ASM_OP "\t.section\t.init"
115 #define FINI_SECTION_ASM_OP "\t.section\t.fini"
117 #define EH_FRAME_IN_DATA_SECTION 1
120 #define ENDFILE_SPEC ""
122 #undef STARTFILE_SPEC
123 #define STARTFILE_SPEC "%{!shared: \
125 %{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}"
128 /* Switch into a generic section. */
129 #define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
131 #define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
133 /* This is how we tell the assembler that a symbol is weak. */
135 #define ASM_WEAKEN_LABEL(FILE,NAME) \
136 do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
137 fputc ('\n', FILE); } while (0)
139 /* Write the extra assembler code needed to declare a function's result.
140 Most svr4 assemblers don't require any special declaration of the
141 result value, but there are exceptions. */
143 #ifndef ASM_DECLARE_RESULT
144 #define ASM_DECLARE_RESULT(FILE, RESULT)