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b355a481 | 1 | /* Definitions for non-Linux based ARM systems using ELF |
caec2cfc | 2 | Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
c9280dfe | 3 | Free Software Foundation, Inc. |
b355a481 NC |
4 | Contributed by Catherine Moore <clm@cygnus.com> |
5 | ||
4f448245 | 6 | This file is part of GCC. |
b355a481 | 7 | |
4f448245 NC |
8 | GCC is free software; you can redistribute it and/or modify it |
9 | under the terms of the GNU General Public License as published | |
10 | by the Free Software Foundation; either version 2, or (at your | |
11 | option) any later version. | |
b355a481 | 12 | |
4f448245 NC |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT |
14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
15 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
16 | License for more details. | |
b355a481 | 17 | |
4f448245 NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; see the file COPYING. If not, write to | |
39d14dda KC |
20 | the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
b355a481 | 22 | |
be393ecf NC |
23 | /* elfos.h should have already been included. Now just override |
24 | any conflicting definitions and add any extras. */ | |
25 | ||
b355a481 | 26 | /* Run-time Target Specification. */ |
e6592fff | 27 | #ifndef TARGET_VERSION |
7b07d808 | 28 | #define TARGET_VERSION fputs (" (ARM/ELF)", stderr); |
e6592fff | 29 | #endif |
b355a481 | 30 | |
61f0ccff | 31 | /* Default to using software floating point. */ |
0122a613 | 32 | #ifndef TARGET_DEFAULT |
3d8532aa | 33 | #define TARGET_DEFAULT (0) |
0122a613 | 34 | #endif |
b355a481 NC |
35 | |
36 | /* Now we define the strings used to build the spec file. */ | |
be393ecf NC |
37 | #undef STARTFILE_SPEC |
38 | #define STARTFILE_SPEC " crti%O%s crtbegin%O%s crt0%O%s" | |
b355a481 | 39 | |
be393ecf NC |
40 | #undef ENDFILE_SPEC |
41 | #define ENDFILE_SPEC "crtend%O%s crtn%O%s" | |
b355a481 | 42 | |
be393ecf NC |
43 | /* The __USES_INITFINI__ define is tested in newlib/libc/sys/arm/crt0.S |
44 | to see if it needs to invoked _init() and _fini(). */ | |
45 | #undef SUBTARGET_CPP_SPEC | |
4e2e315f | 46 | #define SUBTARGET_CPP_SPEC "-D__USES_INITFINI__" |
b355a481 | 47 | |
be393ecf | 48 | #undef PREFERRED_DEBUGGING_TYPE |
b355a481 NC |
49 | #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG |
50 | ||
825dda42 | 51 | /* Return a nonzero value if DECL has a section attribute. */ |
a56e7c08 NC |
52 | #define IN_NAMED_SECTION(DECL) \ |
53 | ((TREE_CODE (DECL) == FUNCTION_DECL || TREE_CODE (DECL) == VAR_DECL) \ | |
54 | && DECL_SECTION_NAME (DECL) != NULL_TREE) | |
55 | ||
a56e7c08 NC |
56 | #undef ASM_OUTPUT_ALIGNED_BSS |
57 | #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
58 | do \ | |
59 | { \ | |
60 | if (IN_NAMED_SECTION (DECL)) \ | |
d6b5193b | 61 | switch_to_section (get_named_section (DECL, NULL, 0)); \ |
a56e7c08 | 62 | else \ |
d6b5193b | 63 | switch_to_section (bss_section); \ |
a56e7c08 | 64 | \ |
a56e7c08 NC |
65 | ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \ |
66 | \ | |
67 | last_assemble_variable_decl = DECL; \ | |
68 | ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \ | |
58e15542 | 69 | ASM_OUTPUT_SKIP (FILE, SIZE ? (int)(SIZE) : 1); \ |
a56e7c08 NC |
70 | } \ |
71 | while (0) | |
72 | ||
73 | #undef ASM_OUTPUT_ALIGNED_DECL_LOCAL | |
74 | #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ | |
75 | do \ | |
76 | { \ | |
648f5f04 | 77 | if ((DECL) != NULL && IN_NAMED_SECTION (DECL)) \ |
d6b5193b | 78 | switch_to_section (get_named_section (DECL, NULL, 0)); \ |
a56e7c08 | 79 | else \ |
d6b5193b | 80 | switch_to_section (bss_section); \ |
a56e7c08 NC |
81 | \ |
82 | ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \ | |
83 | ASM_OUTPUT_LABEL (FILE, NAME); \ | |
58e15542 | 84 | fprintf (FILE, "\t.space\t%d\n", SIZE ? (int)(SIZE) : 1); \ |
a56e7c08 NC |
85 | } \ |
86 | while (0) | |
b355a481 | 87 | |
0122a613 | 88 | #ifndef SUBTARGET_CPU_DEFAULT |
b355a481 | 89 | #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm7tdmi |
0122a613 | 90 | #endif |
d5b7b3ae | 91 | |
e3fe057d MM |
92 | /* The libgcc udivmod functions may throw exceptions. If newlib is |
93 | configured to support long longs in I/O, then printf will depend on | |
94 | udivmoddi4, which will depend on the exception unwind routines, | |
95 | which will depend on abort, which is defined in libc. */ | |
96 | #undef LINK_GCC_C_SEQUENCE_SPEC | |
97 | #define LINK_GCC_C_SEQUENCE_SPEC "--start-group %G %L --end-group" |