58 %{static:-Bstatic}} \
59 %{symbolic:-Bsymbolic}"
60
61/* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add the magical
62 crtbegin.o file (see crtstuff.c) which provides part of the support for
63 getting C++ file-scope static object constructed before entering `main'. */
64
65#undef STARTFILE_SPEC
66#define STARTFILE_SPEC "\
67 %{!shared: \
68 %{pg:gcrt1.o%s} \
69 %{!pg: \
70 %{p:gcrt1.o%s} \
71 %{!p:crt1.o%s}}} \
72 crti.o%s \
73 %{!shared:crtbegin.o%s} \
74 %{shared:crtbeginS.o%s}"
75
76/* Provide an ENDFILE_SPEC appropriate for FreeBSD/i386. Here we tack on our
77 own magical crtend.o file (see crtstuff.c) which provides part of the
78 support for getting C++ file-scope static object constructed before
79 entering `main', followed by the normal "finalizer" file, `crtn.o'. */
80
81#undef ENDFILE_SPEC
82#define ENDFILE_SPEC "\
83 %{!shared:crtend.o%s} \
84 %{shared:crtendS.o%s} crtn.o%s"
85
86
87/************************[ Target stuff ]***********************************/
88
89/* Define the actual types of some ANSI-mandated types.
90 Needs to agree with <machine/ansi.h>. GCC defaults come from c-decl.c,
91 c-common.c, and config/<arch>/<arch>.h. */
92
93#undef SIZE_TYPE
94#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
95
96#undef PTRDIFF_TYPE
97#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
98
99#undef WCHAR_TYPE_SIZE
100#define WCHAR_TYPE_SIZE (TARGET_64BIT ? 32 : BITS_PER_WORD)
101
102#define TARGET_VERSION fprintf (stderr, " (i386 FreeBSD/ELF)");
103
104#define MASK_PROFILER_EPILOGUE 010000000000
105
106#define TARGET_PROFILER_EPILOGUE (target_flags & MASK_PROFILER_EPILOGUE)
107#define TARGET_ELF 1
108
109#undef SUBTARGET_SWITCHES
110#define SUBTARGET_SWITCHES \
111 { "profiler-epilogue", MASK_PROFILER_EPILOGUE, "Function profiler epilogue"}, \
112 { "no-profiler-epilogue", -MASK_PROFILER_EPILOGUE, "No function profiler epilogue"},
113
114/* This goes away when the math emulator is fixed. */
115#undef TARGET_SUBTARGET_DEFAULT
116#define TARGET_SUBTARGET_DEFAULT \
117 (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)
118
119/* Don't default to pcc-struct-return, we want to retain compatibility with
120 older gcc versions AND pcc-struct-return is nonreentrant.
121 (even though the SVR4 ABI for the i386 says that records and unions are
122 returned in memory). */
123
124#undef DEFAULT_PCC_STRUCT_RETURN
125#define DEFAULT_PCC_STRUCT_RETURN 0
126
127/* FreeBSD sets the rounding precision of the FPU to 53 bits. Let the
128 compiler get the contents of <float.h> and std::numeric_limits correct. */
129#define SUBTARGET_OVERRIDE_OPTIONS \
130 do { \
131 if (!TARGET_64BIT) { \
132 real_format_for_mode[XFmode - QFmode] \
133 = &ieee_extended_intel_96_round_53_format; \
134 real_format_for_mode[TFmode - QFmode] \
135 = &ieee_extended_intel_96_round_53_format; \
136 } \
137 } while (0)
138
139/* Tell final.c that we don't need a label passed to mcount. */
140#define NO_PROFILE_COUNTERS 1
141
142/* Output assembler code to FILE to begin profiling of the current function.
143 LABELNO is an optional label. */
144
145#undef MCOUNT_NAME
146#define MCOUNT_NAME ".mcount"
147
148/* Output assembler code to FILE to end profiling of the current function. */
149
150#undef FUNCTION_PROFILER_EPILOGUE /* BDE will need to fix this. */
151
152
153/************************[ Assembler stuff ]********************************/
154
155/* Override the default comment-starter of "/" from unix.h. */
156#undef ASM_COMMENT_START
157#define ASM_COMMENT_START "#"
158
159/* Override the default comment-starter of "/APP" from unix.h. */
160#undef ASM_APP_ON
161#define ASM_APP_ON "#APP\n"
162#undef ASM_APP_OFF
163#define ASM_APP_OFF "#NO_APP\n"
164
165/* XXX:DEO do we still need this override to defaults.h ?? */
166/* This is how to output a reference to a user-level label named NAME. */
167#undef ASM_OUTPUT_LABELREF
168#define ASM_OUTPUT_LABELREF(FILE, NAME) \
169 do { \
170 char *_name = (NAME); \
171 /* Hack to avoid writing lots of rtl in \
172 FUNCTION_PROFILER_EPILOGUE (). */ \
173 if (*_name == '.' && strcmp(_name + 1, "mexitcount") == 0) \
174 { \
175 if (flag_pic) \
176 fprintf ((FILE), "*%s@GOT(%%ebx)", _name); \
177 else \
178 fprintf ((FILE), "%s", _name); \
179 } \
180 else \
181 fprintf (FILE, "%s", _name); \
182} while (0)
183
184/* This is how to hack on the symbol code of certain relcalcitrant
185 symbols to modify their output in output_pic_addr_const (). */
186
187#undef ASM_HACK_SYMBOLREF_CODE /* BDE will need to fix this. */
188
189#undef ASM_OUTPUT_ALIGN
190#define ASM_OUTPUT_ALIGN(FILE, LOG) \
191 do { \
192 if ((LOG)!=0) { \
193 if (in_text_section()) \
194 fprintf ((FILE), "\t.p2align %d,0x90\n", (LOG)); \
195 else \
196 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
197 } \
198 } while (0)
199
200/* A C statement to output to the stdio stream FILE an assembler
201 command to advance the location counter to a multiple of 1<<LOG
202 bytes if it is within MAX_SKIP bytes.
203
204 This is used to align code labels according to Intel recommendations. */
205
206/* XXX configuration of this is broken in the same way as HAVE_GAS_SHF_MERGE,
207 but it is easier to fix in an MD way. */
208
209#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
210#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP) \
211 do { \
212 if ((LOG) != 0) { \
213 if ((MAX_SKIP) == 0) \
214 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
215 else \
216 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
217 } \
218 } while (0)
219#endif
220
221/* If defined, a C expression whose value is a string containing the
222 assembler operation to identify the following data as
223 uninitialized global data. If not defined, and neither
224 `ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined,
225 uninitialized global data will be output in the data section if
226 `-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be
227 used. */
228#undef BSS_SECTION_ASM_OP
229#define BSS_SECTION_ASM_OP "\t.section\t.bss"
230
231/* Like `ASM_OUTPUT_BSS' except takes the required alignment as a
232 separate, explicit argument. If you define this macro, it is used
233 in place of `ASM_OUTPUT_BSS', and gives you more flexibility in
234 handling the required alignment of the variable. The alignment is
235 specified as the number of bits.
236
237 Try to use function `asm_output_aligned_bss' defined in file
238 `varasm.c' when defining this macro. */
239#undef ASM_OUTPUT_ALIGNED_BSS
240#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
241 asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
242
243/************************[ Debugger stuff ]*********************************/
244
245#undef DBX_REGISTER_NUMBER
246#define DBX_REGISTER_NUMBER(n) (TARGET_64BIT ? dbx64_register_map[n] \
247 : (write_symbols == DWARF2_DEBUG \
248 || write_symbols == DWARF_DEBUG) \
249 ? svr4_dbx_register_map[(n)] \
250 : dbx_register_map[(n)])
251
252/* The same functions are used to creating the DWARF2 debug info and C++
253 unwind info (except.c). Regardless of the debug format requested, the
254 register numbers used in exception unwinding sections still have to be
255 DWARF compatible. IMO the GCC folks may be abusing the DBX_REGISTER_NUMBER
256 macro to mean too much. */
257#define DWARF_FRAME_REGNUM(n) (TARGET_64BIT ? dbx64_register_map[n] \
258 : svr4_dbx_register_map[(n)])
259
260/* stabs-in-elf has offsets relative to function beginning */
261#undef DBX_OUTPUT_LBRAC
262#define DBX_OUTPUT_LBRAC(FILE, NAME) \
263 do { \
264 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC); \
265 assemble_name (asmfile, buf); \
266 fputc ('-', asmfile); \
267 assemble_name (asmfile, \
268 XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
269 fprintf (asmfile, "\n"); \
270 } while (0)
271
272#undef DBX_OUTPUT_RBRAC
273#define DBX_OUTPUT_RBRAC(FILE, NAME) \
274 do { \
275 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC); \
276 assemble_name (asmfile, buf); \
277 fputc ('-', asmfile); \
278 assemble_name (asmfile, \
279 XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
280 fprintf (asmfile, "\n"); \
281 } while (0)
| 58 %{static:-Bstatic}} \
59 %{symbolic:-Bsymbolic}"
60
61/* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add the magical
62 crtbegin.o file (see crtstuff.c) which provides part of the support for
63 getting C++ file-scope static object constructed before entering `main'. */
64
65#undef STARTFILE_SPEC
66#define STARTFILE_SPEC "\
67 %{!shared: \
68 %{pg:gcrt1.o%s} \
69 %{!pg: \
70 %{p:gcrt1.o%s} \
71 %{!p:crt1.o%s}}} \
72 crti.o%s \
73 %{!shared:crtbegin.o%s} \
74 %{shared:crtbeginS.o%s}"
75
76/* Provide an ENDFILE_SPEC appropriate for FreeBSD/i386. Here we tack on our
77 own magical crtend.o file (see crtstuff.c) which provides part of the
78 support for getting C++ file-scope static object constructed before
79 entering `main', followed by the normal "finalizer" file, `crtn.o'. */
80
81#undef ENDFILE_SPEC
82#define ENDFILE_SPEC "\
83 %{!shared:crtend.o%s} \
84 %{shared:crtendS.o%s} crtn.o%s"
85
86
87/************************[ Target stuff ]***********************************/
88
89/* Define the actual types of some ANSI-mandated types.
90 Needs to agree with <machine/ansi.h>. GCC defaults come from c-decl.c,
91 c-common.c, and config/<arch>/<arch>.h. */
92
93#undef SIZE_TYPE
94#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
95
96#undef PTRDIFF_TYPE
97#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
98
99#undef WCHAR_TYPE_SIZE
100#define WCHAR_TYPE_SIZE (TARGET_64BIT ? 32 : BITS_PER_WORD)
101
102#define TARGET_VERSION fprintf (stderr, " (i386 FreeBSD/ELF)");
103
104#define MASK_PROFILER_EPILOGUE 010000000000
105
106#define TARGET_PROFILER_EPILOGUE (target_flags & MASK_PROFILER_EPILOGUE)
107#define TARGET_ELF 1
108
109#undef SUBTARGET_SWITCHES
110#define SUBTARGET_SWITCHES \
111 { "profiler-epilogue", MASK_PROFILER_EPILOGUE, "Function profiler epilogue"}, \
112 { "no-profiler-epilogue", -MASK_PROFILER_EPILOGUE, "No function profiler epilogue"},
113
114/* This goes away when the math emulator is fixed. */
115#undef TARGET_SUBTARGET_DEFAULT
116#define TARGET_SUBTARGET_DEFAULT \
117 (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)
118
119/* Don't default to pcc-struct-return, we want to retain compatibility with
120 older gcc versions AND pcc-struct-return is nonreentrant.
121 (even though the SVR4 ABI for the i386 says that records and unions are
122 returned in memory). */
123
124#undef DEFAULT_PCC_STRUCT_RETURN
125#define DEFAULT_PCC_STRUCT_RETURN 0
126
127/* FreeBSD sets the rounding precision of the FPU to 53 bits. Let the
128 compiler get the contents of <float.h> and std::numeric_limits correct. */
129#define SUBTARGET_OVERRIDE_OPTIONS \
130 do { \
131 if (!TARGET_64BIT) { \
132 real_format_for_mode[XFmode - QFmode] \
133 = &ieee_extended_intel_96_round_53_format; \
134 real_format_for_mode[TFmode - QFmode] \
135 = &ieee_extended_intel_96_round_53_format; \
136 } \
137 } while (0)
138
139/* Tell final.c that we don't need a label passed to mcount. */
140#define NO_PROFILE_COUNTERS 1
141
142/* Output assembler code to FILE to begin profiling of the current function.
143 LABELNO is an optional label. */
144
145#undef MCOUNT_NAME
146#define MCOUNT_NAME ".mcount"
147
148/* Output assembler code to FILE to end profiling of the current function. */
149
150#undef FUNCTION_PROFILER_EPILOGUE /* BDE will need to fix this. */
151
152
153/************************[ Assembler stuff ]********************************/
154
155/* Override the default comment-starter of "/" from unix.h. */
156#undef ASM_COMMENT_START
157#define ASM_COMMENT_START "#"
158
159/* Override the default comment-starter of "/APP" from unix.h. */
160#undef ASM_APP_ON
161#define ASM_APP_ON "#APP\n"
162#undef ASM_APP_OFF
163#define ASM_APP_OFF "#NO_APP\n"
164
165/* XXX:DEO do we still need this override to defaults.h ?? */
166/* This is how to output a reference to a user-level label named NAME. */
167#undef ASM_OUTPUT_LABELREF
168#define ASM_OUTPUT_LABELREF(FILE, NAME) \
169 do { \
170 char *_name = (NAME); \
171 /* Hack to avoid writing lots of rtl in \
172 FUNCTION_PROFILER_EPILOGUE (). */ \
173 if (*_name == '.' && strcmp(_name + 1, "mexitcount") == 0) \
174 { \
175 if (flag_pic) \
176 fprintf ((FILE), "*%s@GOT(%%ebx)", _name); \
177 else \
178 fprintf ((FILE), "%s", _name); \
179 } \
180 else \
181 fprintf (FILE, "%s", _name); \
182} while (0)
183
184/* This is how to hack on the symbol code of certain relcalcitrant
185 symbols to modify their output in output_pic_addr_const (). */
186
187#undef ASM_HACK_SYMBOLREF_CODE /* BDE will need to fix this. */
188
189#undef ASM_OUTPUT_ALIGN
190#define ASM_OUTPUT_ALIGN(FILE, LOG) \
191 do { \
192 if ((LOG)!=0) { \
193 if (in_text_section()) \
194 fprintf ((FILE), "\t.p2align %d,0x90\n", (LOG)); \
195 else \
196 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
197 } \
198 } while (0)
199
200/* A C statement to output to the stdio stream FILE an assembler
201 command to advance the location counter to a multiple of 1<<LOG
202 bytes if it is within MAX_SKIP bytes.
203
204 This is used to align code labels according to Intel recommendations. */
205
206/* XXX configuration of this is broken in the same way as HAVE_GAS_SHF_MERGE,
207 but it is easier to fix in an MD way. */
208
209#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
210#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP) \
211 do { \
212 if ((LOG) != 0) { \
213 if ((MAX_SKIP) == 0) \
214 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
215 else \
216 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
217 } \
218 } while (0)
219#endif
220
221/* If defined, a C expression whose value is a string containing the
222 assembler operation to identify the following data as
223 uninitialized global data. If not defined, and neither
224 `ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined,
225 uninitialized global data will be output in the data section if
226 `-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be
227 used. */
228#undef BSS_SECTION_ASM_OP
229#define BSS_SECTION_ASM_OP "\t.section\t.bss"
230
231/* Like `ASM_OUTPUT_BSS' except takes the required alignment as a
232 separate, explicit argument. If you define this macro, it is used
233 in place of `ASM_OUTPUT_BSS', and gives you more flexibility in
234 handling the required alignment of the variable. The alignment is
235 specified as the number of bits.
236
237 Try to use function `asm_output_aligned_bss' defined in file
238 `varasm.c' when defining this macro. */
239#undef ASM_OUTPUT_ALIGNED_BSS
240#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
241 asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
242
243/************************[ Debugger stuff ]*********************************/
244
245#undef DBX_REGISTER_NUMBER
246#define DBX_REGISTER_NUMBER(n) (TARGET_64BIT ? dbx64_register_map[n] \
247 : (write_symbols == DWARF2_DEBUG \
248 || write_symbols == DWARF_DEBUG) \
249 ? svr4_dbx_register_map[(n)] \
250 : dbx_register_map[(n)])
251
252/* The same functions are used to creating the DWARF2 debug info and C++
253 unwind info (except.c). Regardless of the debug format requested, the
254 register numbers used in exception unwinding sections still have to be
255 DWARF compatible. IMO the GCC folks may be abusing the DBX_REGISTER_NUMBER
256 macro to mean too much. */
257#define DWARF_FRAME_REGNUM(n) (TARGET_64BIT ? dbx64_register_map[n] \
258 : svr4_dbx_register_map[(n)])
259
260/* stabs-in-elf has offsets relative to function beginning */
261#undef DBX_OUTPUT_LBRAC
262#define DBX_OUTPUT_LBRAC(FILE, NAME) \
263 do { \
264 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC); \
265 assemble_name (asmfile, buf); \
266 fputc ('-', asmfile); \
267 assemble_name (asmfile, \
268 XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
269 fprintf (asmfile, "\n"); \
270 } while (0)
271
272#undef DBX_OUTPUT_RBRAC
273#define DBX_OUTPUT_RBRAC(FILE, NAME) \
274 do { \
275 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC); \
276 assemble_name (asmfile, buf); \
277 fputc ('-', asmfile); \
278 assemble_name (asmfile, \
279 XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
280 fprintf (asmfile, "\n"); \
281 } while (0)
|