0
|
1 /* Target definitions for GNU compiler for SPARC running System V.4
|
|
2 Copyright (C) 1991, 1992, 1995, 1996, 1997, 1998, 2000, 2002, 2007, 2009
|
|
3 Free Software Foundation, Inc.
|
|
4 Contributed by Ron Guilmette (rfg@monkeys.com).
|
|
5
|
|
6 This file is part of GCC.
|
|
7
|
|
8 GCC is free software; you can redistribute it and/or modify
|
|
9 it under the terms of the GNU General Public License as published by
|
|
10 the Free Software Foundation; either version 3, or (at your option)
|
|
11 any later version.
|
|
12
|
|
13 GCC is distributed in the hope that it will be useful,
|
|
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
16 GNU General Public License for more details.
|
|
17
|
|
18 You should have received a copy of the GNU General Public License
|
|
19 along with GCC; see the file COPYING3. If not see
|
|
20 <http://www.gnu.org/licenses/>. */
|
|
21
|
|
22 #ifndef TARGET_VERSION
|
|
23 #define TARGET_VERSION fprintf (stderr, " (sparc ELF)");
|
|
24 #endif
|
|
25
|
|
26 /* ??? Put back the SIZE_TYPE/PTRDIFF_TYPE definitions set by sparc.h.
|
|
27 Why, exactly, is svr4.h messing with this? Seems like the chip
|
|
28 would know best. */
|
|
29
|
|
30 #undef SIZE_TYPE
|
|
31 #define SIZE_TYPE (TARGET_ARCH64 ? "long unsigned int" : "unsigned int")
|
|
32
|
|
33 #undef PTRDIFF_TYPE
|
|
34 #define PTRDIFF_TYPE (TARGET_ARCH64 ? "long int" : "int")
|
|
35
|
|
36 /* Undefined some symbols which are defined in "svr4.h" but which are
|
|
37 appropriate only for typical svr4 systems, but not for the specific
|
|
38 case of svr4 running on a SPARC. */
|
|
39
|
|
40 #undef INIT_SECTION_ASM_OP
|
|
41 #undef FINI_SECTION_ASM_OP
|
|
42 #undef READONLY_DATA_SECTION_ASM_OP
|
|
43 #undef TYPE_OPERAND_FMT
|
|
44 #undef PUSHSECTION_FORMAT
|
|
45 #undef STRING_ASM_OP
|
|
46 #undef COMMON_ASM_OP
|
|
47 #undef SKIP_ASM_OP
|
|
48 #undef SET_ASM_OP /* Has no equivalent. See ASM_OUTPUT_DEF below. */
|
|
49
|
|
50 /* Pass -K to the assembler when PIC. */
|
|
51 #undef ASM_SPEC
|
|
52 #define ASM_SPEC \
|
|
53 "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
|
|
54 %{fpic|fPIC|fpie|fPIE:-K PIC} %(asm_cpu)"
|
|
55
|
|
56 /* Define the names of various pseudo-op used by the SPARC/svr4 assembler.
|
|
57 Note that many of these are different from the typical pseudo-ops used
|
|
58 by most svr4 assemblers. That is probably due to a (misguided?) attempt
|
|
59 to keep the SPARC/svr4 assembler somewhat compatible with the SPARC/SunOS
|
|
60 assembler. */
|
|
61
|
|
62 #define STRING_ASM_OP "\t.asciz\t"
|
|
63 #define COMMON_ASM_OP "\t.common\t"
|
|
64 #define SKIP_ASM_OP "\t.skip\t"
|
|
65 #define PUSHSECTION_ASM_OP "\t.pushsection\t"
|
|
66 #define POPSECTION_ASM_OP "\t.popsection"
|
|
67
|
|
68 /* This is the format used to print the second operand of a .type pseudo-op
|
|
69 for the SPARC/svr4 assembler. */
|
|
70
|
|
71 #define TYPE_OPERAND_FMT "#%s"
|
|
72
|
|
73 /* This is the format used to print a .pushsection pseudo-op (and its operand)
|
|
74 for the SPARC/svr4 assembler. */
|
|
75
|
|
76 #define PUSHSECTION_FORMAT "%s\"%s\"\n"
|
|
77
|
|
78 #undef ASM_OUTPUT_CASE_LABEL
|
|
79 #define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, JUMPTABLE) \
|
|
80 do { ASM_OUTPUT_ALIGN ((FILE), Pmode == SImode ? 2 : 3); \
|
|
81 (*targetm.asm_out.internal_label) ((FILE), PREFIX, NUM); \
|
|
82 } while (0)
|
|
83
|
|
84 /* This is how to equate one symbol to another symbol. The syntax used is
|
|
85 `SYM1=SYM2'. Note that this is different from the way equates are done
|
|
86 with most svr4 assemblers, where the syntax is `.set SYM1,SYM2'. */
|
|
87
|
|
88 #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
|
|
89 do { fprintf ((FILE), "\t"); \
|
|
90 assemble_name (FILE, LABEL1); \
|
|
91 fprintf (FILE, " = "); \
|
|
92 assemble_name (FILE, LABEL2); \
|
|
93 fprintf (FILE, "\n"); \
|
|
94 } while (0)
|
|
95
|
|
96 /* A set of symbol definitions for assembly pseudo-ops which will
|
|
97 get us switched to various sections of interest. These are used
|
|
98 in all places where we simply want to switch to a section, and
|
|
99 *not* to push the previous section name onto the assembler's
|
|
100 section names stack (as we do often in dwarfout.c). */
|
|
101
|
|
102 #define TEXT_SECTION_ASM_OP "\t.section\t\".text\""
|
|
103 #define DATA_SECTION_ASM_OP "\t.section\t\".data\""
|
|
104 #define BSS_SECTION_ASM_OP "\t.section\t\".bss\""
|
|
105 #define READONLY_DATA_SECTION_ASM_OP "\t.section\t\".rodata\""
|
|
106 #define INIT_SECTION_ASM_OP "\t.section\t\".init\""
|
|
107 #define FINI_SECTION_ASM_OP "\t.section\t\".fini\""
|
|
108
|
|
109 /* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
|
|
110
|
|
111 Note that we want to give these sections the SHF_WRITE attribute
|
|
112 because these sections will actually contain data (i.e. tables of
|
|
113 addresses of functions in the current root executable or shared library
|
|
114 file) and, in the case of a shared library, the relocatable addresses
|
|
115 will have to be properly resolved/relocated (and then written into) by
|
|
116 the dynamic linker when it actually attaches the given shared library
|
|
117 to the executing process. (Note that on SVR4, you may wish to use the
|
|
118 `-z text' option to the ELF linker, when building a shared library, as
|
|
119 an additional check that you are doing everything right. But if you do
|
|
120 use the `-z text' option when building a shared library, you will get
|
|
121 errors unless the .ctors and .dtors sections are marked as writable
|
|
122 via the SHF_WRITE attribute.) */
|
|
123
|
|
124 #undef CTORS_SECTION_ASM_OP
|
|
125 #define CTORS_SECTION_ASM_OP "\t.section\t\".ctors\",#alloc,#write"
|
|
126 #undef DTORS_SECTION_ASM_OP
|
|
127 #define DTORS_SECTION_ASM_OP "\t.section\t\".dtors\",#alloc,#write"
|
|
128
|
|
129 /* Switch into a generic section. */
|
|
130 #undef TARGET_ASM_NAMED_SECTION
|
|
131 #define TARGET_ASM_NAMED_SECTION sparc_elf_asm_named_section
|
|
132
|
|
133 #undef ASM_OUTPUT_ALIGNED_BSS
|
|
134 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
|
|
135 asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
|
|
136
|
|
137 /* Override the name of the mcount profiling function. */
|
|
138
|
|
139 #undef MCOUNT_FUNCTION
|
|
140 #define MCOUNT_FUNCTION "*_mcount"
|