1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/* Definitions for ARM running Linux-based GNU systems using ELF
Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
Contributed by Philip Blundell <philb@gnu.org>
This file is part of GNU CC.
GNU CC 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)
any later version.
GNU CC 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 this program; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* elfos.h should have already been included. Now just override
any conflicting definitions and add any extras. */
/* Run-time Target Specification. */
#undef TARGET_VERSION
#define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr);
/* Do not assume anything about header files. */
#define NO_IMPLICIT_EXTERN_C
/* Default is to use APCS-32 mode. */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_MMU_TRAPS)
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
#undef MULTILIB_DEFAULTS
#define MULTILIB_DEFAULTS \
{ "marm", "mlittle-endian", "mhard-float", "mapcs-32", "mno-thumb-interwork" }
#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
/* The GNU C++ standard library requires that these macros be defined. */
#undef CPLUSPLUS_CPP_SPEC
#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
/* Now we define the strings used to build the spec file. */
#define LIB_SPEC \
"%{pthread:-lpthread} \
%{shared:-lc} \
%{!shared:%{profile:-lc_p}%{!profile:-lc}}"
#define LIBGCC_SPEC "%{msoft-float:-lfloat} -lgcc"
/* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
provides part of the support for getting C++ file-scope static
object constructed before entering `main'. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{!shared: \
%{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
%{!p:%{profile:gcrt1.o%s} \
%{!profile:crt1.o%s}}}} \
crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
the GNU/Linux magical crtend.o file (see crtstuff.c) which
provides part of the support for getting C++ file-scope static
object constructed before entering `main', followed by a normal
GNU/Linux "finalizer" file, `crtn.o'. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
#undef LINK_SPEC
#define LINK_SPEC "%{h*} %{version:-v} \
%{b} %{Wl,*:%*} \
%{static:-Bstatic} \
%{shared:-shared} \
%{symbolic:-Bsymbolic} \
%{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2} \
-X \
%{mbig-endian:-EB}" \
SUBTARGET_EXTRA_LINK_SPEC
#define TARGET_OS_CPP_BUILTINS() \
do { \
builtin_define_std ("unix"); \
builtin_define_std ("linux"); \
builtin_define ("__gnu_linux__"); \
builtin_define ("__ELF__"); \
builtin_assert ("system=unix"); \
builtin_assert ("system=posix"); \
} while (0)
/* This is how we tell the assembler that two symbols have the same value. */
#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
do \
{ \
assemble_name (FILE, NAME1); \
fputs (" = ", FILE); \
assemble_name (FILE, NAME2); \
fputc ('\n', FILE); \
} \
while (0)
/* NWFPE always understands FPA instructions. */
#undef FP_DEFAULT
#define FP_DEFAULT FP_SOFT3
/* Call the function profiler with a given profile label. */
#undef ARM_FUNCTION_PROFILER
#define ARM_FUNCTION_PROFILER(STREAM, LABELNO) \
{ \
fprintf (STREAM, "\tbl\tmcount%s\n", NEED_PLT_RELOC ? "(PLT)" : ""); \
}
#undef CC1_SPEC
#define CC1_SPEC "%{profile:-p}"
#define LINK_GCC_C_SEQUENCE_SPEC \
"%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
|