1 /* Definitions for PA_RISC with ELF format
2    Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
3 
4 This file is part of GCC.
5 
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10 
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 GNU General Public License for more details.
15 
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING.  If not, write to
18 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
19 Boston, MA 02110-1301, USA.  */
20 
21 
22 #undef TARGET_OS_CPP_BUILTINS
23 #define TARGET_OS_CPP_BUILTINS()		\
24   do						\
25     {						\
26 	LINUX_TARGET_OS_CPP_BUILTINS();		\
27 	builtin_assert ("machine=bigendian");	\
28 	if (flag_pic)				\
29 	  {					\
30 		builtin_define ("__PIC__");	\
31 		builtin_define ("__pic__");	\
32 	  }					\
33     }						\
34   while (0)
35 
36 #undef CPP_SPEC
37 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
38 
39 #undef	LIB_SPEC
40 #define LIB_SPEC \
41   "%{pthread:-lpthread} \
42    %{shared:-lgcc -lc} \
43    %{!shared:%{mieee-fp:-lieee} %{shared-libgcc:-lgcc} %{profile:-lc_p}%{!profile:-lc}}"
44 
45 #undef ASM_SPEC
46 #define ASM_SPEC \
47   "%{v:-V} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
48 
49 /* Define this for shared library support because it isn't in the main
50    linux.h file.  */
51 
52 #undef LINK_SPEC
53 #define LINK_SPEC "\
54   %{shared:-shared} \
55   %{!shared: \
56     %{!static: \
57       %{rdynamic:-export-dynamic} \
58       %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
59       %{static:-static}}"
60 
61 /* glibc's profiling functions don't need gcc to allocate counters.  */
62 #define NO_DEFERRED_PROFILE_COUNTERS 1
63 
64 /* Define the strings used for the special svr4 .type and .size directives.
65    These strings generally do not vary from one system running svr4 to
66    another, but if a given system (e.g. m88k running svr) needs to use
67    different pseudo-op names for these, they may be overridden in the
68    file which includes this one.  */
69 
70 #undef STRING_ASM_OP
71 #define STRING_ASM_OP   ".stringz"
72 
73 #define TEXT_SECTION_ASM_OP "\t.text"
74 #define DATA_SECTION_ASM_OP "\t.data"
75 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
76 
77 #define TARGET_ASM_FILE_START pa_linux_file_start
78 
79 /* We want local labels to start with period if made with asm_fprintf.  */
80 #undef LOCAL_LABEL_PREFIX
81 #define LOCAL_LABEL_PREFIX "."
82 
83 /* Define these to generate the Linux/ELF/SysV style of internal
84    labels all the time - i.e. to be compatible with
85    ASM_GENERATE_INTERNAL_LABEL in <elfos.h>.  Compare these with the
86    ones in pa.h and note the lack of dollar signs in these.  FIXME:
87    shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
88 
89 #undef ASM_OUTPUT_ADDR_VEC_ELT
90 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
91   if (TARGET_BIG_SWITCH)					\
92     fprintf (FILE, "\t.word .L%d\n", VALUE);			\
93   else								\
94     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
95 
96 #undef ASM_OUTPUT_ADDR_DIFF_ELT
97 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
98   if (TARGET_BIG_SWITCH)					\
99     fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL);		\
100   else								\
101     fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
102 
103 /* Use the default.  */
104 #undef ASM_OUTPUT_LABEL
105 
106 /* NOTE: (*targetm.asm_out.internal_label)() is defined for us by elfos.h, and
107    does what we want (i.e. uses colons).  It must be compatible with
108    ASM_GENERATE_INTERNAL_LABEL(), so do not define it here.  */
109 
110 /* Use the default.  */
111 #undef TARGET_ASM_GLOBALIZE_LABEL
112 /* Globalizing directive for a label.  */
113 #define GLOBAL_ASM_OP ".globl "
114 
115 /* FIXME: Hacked from the <elfos.h> one so that we avoid multiple
116    labels in a function declaration (since pa.c seems determined to do
117    it differently)  */
118 
119 #undef ASM_DECLARE_FUNCTION_NAME
120 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)		\
121   do								\
122     {								\
123       ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");	\
124       ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));		\
125     }								\
126   while (0)
127 
128 /* As well as globalizing the label, we need to encode the label
129    to ensure a plabel is generated in an indirect call.  */
130 
131 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
132 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)  		\
133   do								\
134     {								\
135       if (!FUNCTION_NAME_P (XSTR (FUN, 0)))			\
136 	hppa_encode_label (FUN);				\
137       (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0));	\
138     }								\
139   while (0)
140 
141 /* Linux always uses gas.  */
142 #undef TARGET_GAS
143 #define TARGET_GAS 1
144