/* Definitions of target machine for GNU compiler, for SPARC running Solaris 2
- Copyright 1992 Free Software Foundation, Inc.
- Contributed by Ron Guilmette (rfg@ncd.com) and
- David V. Henkel-Wallace (gumby@cygnus.com).
+ Copyright 1992, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001 Free Software Foundation, Inc.
+ Contributed by Ron Guilmette (rfg@netcom.com).
+ Additional changes by David V. Henkel-Wallace (gumby@cygnus.com).
This file is part of GNU CC.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#define NO_UNDERSCORES 1
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
/* Supposedly the same as vanilla sparc svr4, except for the stuff below: */
-#include "sparcv4.h"
+
+/* Solaris 2 uses a wint_t different from the default. This is required
+ by the SCD 2.4.1, p. 6-83, Figure 6-66. */
+#undef WINT_TYPE
+#define WINT_TYPE "long int"
+
+#undef WINT_TYPE_SIZE
+#define WINT_TYPE_SIZE BITS_PER_WORD
#undef CPP_PREDEFINES
#define CPP_PREDEFINES \
- "-Dsun -Dsparc -Dunix -D__svr4__ -Asystem(unix) -Acpu(sparc) -Amachine(sparc)"
+"-Dsparc -Dsun -Dunix -D__svr4__ -D__SVR4 \
+-Asystem=unix -Asystem=svr4"
+
+#undef CPP_SUBTARGET_SPEC
+#define CPP_SUBTARGET_SPEC "\
+%{pthreads:-D_REENTRANT -D_PTHREADS} \
+%{!pthreads:%{threads:-D_REENTRANT -D_SOLARIS_THREADS}} \
+%{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude} \
+"
+
+/* For C++ we need to add some additional macro definitions required
+ by the C++ standard library. */
+#define CPLUSPLUS_CPP_SPEC "\
+-D_XOPEN_SOURCE=500 -D_LARGEFILE_SOURCE=1 -D_LARGEFILE64_SOURCE=1 \
+-D__EXTENSIONS__ \
+%(cpp) \
+"
/* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
- It's safe to pass -s always, even if -g is not used. */
+ It's safe to pass -s always, even if -g is not used. */
#undef ASM_SPEC
-#define ASM_SPEC \
- "%{V} %{v:%{!V:-V}} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s"
+#define ASM_SPEC "\
+%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
+%{fpic:-K PIC} %{fPIC:-K PIC} \
+%(asm_cpu) \
+"
+
+/* This is here rather than in sparc.h because it's not known what
+ other assemblers will accept. */
+#if TARGET_CPU_DEFAULT == TARGET_CPU_v9
+#undef ASM_CPU_DEFAULT_SPEC
+#define ASM_CPU_DEFAULT_SPEC "-xarch=v8plus"
+#endif
+#if TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
+#undef ASM_CPU_DEFAULT_SPEC
+#define ASM_CPU_DEFAULT_SPEC "-xarch=v8plusa"
+#endif
+#undef ASM_CPU_SPEC
+#define ASM_CPU_SPEC "\
+%{mcpu=v8plus:-xarch=v8plus} \
+%{mcpu=ultrasparc:-xarch=v8plusa} \
+%{!mcpu*:%(asm_cpu_default)} \
+"
/* However it appears that Solaris 2.0 uses the same reg numbering as
- the old BSD-style system did. */
+ the old BSD-style system did. */
#undef DBX_REGISTER_NUMBER
/* Same as sparc.h */
-#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+#define DBX_REGISTER_NUMBER(REGNO) \
+ (TARGET_FLAT && (REGNO) == HARD_FRAME_POINTER_REGNUM ? 31 : REGNO)
+/* We use stabs-in-elf for debugging, because that is what the native
+ toolchain uses. */
+#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
-#define DBX_BLOCKS_FUNCTION_RELATIVE 1
-
-/* "gcc2_compiled." must be a .stabs, not an ordinary symbol, or GDB won't
- see it. Furthermore, since GDB reads the input piecemeal, starting
- with each N_SO, it's a lot easier if the gcc2 flag symbol is *after*
- the N_SO rather than before it. So we emit an N_OPT stab here. */
-
-#define ASM_IDENTIFY_GCC(FILE) /* Do nothing */
-
-#define ASM_IDENTIFY_GCC_AFTER_SOURCE(FILE) \
- fputs ("\t.stabs\t\"gcc2_compiled.\", 0x3c, 0, 0, 0\n", FILE)
-
-#undef CTORS_SECTION_ASM_OP
-#undef DTORS_SECTION_ASM_OP
-
-#if 0 /* These seems unnecessary; the ones in sparcv4.h look right. */
-#undef TEXT_SECTION_ASM_OP
-#undef DATA_SECTION_ASM_OP
-#undef BSS_SECTION_ASM_OP
-#undef CONST_SECTION_ASM_OP
-#undef INIT_SECTION_ASM_OP
-
-#define TEXT_SECTION_ASM_OP "\t.section\t\".text\""
-#define DATA_SECTION_ASM_OP "\t.section\t\".data\""
-#define BSS_SECTION_ASM_OP "\t.section\t\".bss\""
-
-#define CONST_SECTION_ASM_OP "\t.section\t\".rodata\""
-#define INIT_SECTION_ASM_OP "\t.section\t\".init\""
-#endif
-
-#define CTORS_SECTION_ASM_OP "\t.section\t\".ctors\",#alloc,#execinstr\n"
-#define DTORS_SECTION_ASM_OP "\t.section\t\".dtors\",#alloc,#execinstr\n"
-
-/* The Solaris 2 assembler doesn't support the .string directive,
- so disable it. */
-
-/* This doesn't work, despite the comment in svr4.h:
-#undef STRING_LIMIT
-#define STRING_LIMIT 0
-*/
-
-#undef ASM_OUTPUT_ASCII
-#define ASM_OUTPUT_DWARF_STRING(FILE,P) assemble_string(FILE, P)
-
-/* The Solaris 2 assembler uses .skip, not .zero, so put this back. */
+/* The Solaris 2 assembler uses .skip, not .zero, so put this back. */
#undef ASM_OUTPUT_SKIP
#define ASM_OUTPUT_SKIP(FILE,SIZE) \
fprintf (FILE, "\t.skip %u\n", (SIZE))
-#undef ASM_OUTPUT_ALIGNED_LOCAL
-#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
-do { \
- fputs ("\t.local\t", (FILE)); \
- assemble_name ((FILE), (NAME)); \
- putc ('\n', (FILE)); \
- ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
-} while (0)
-
-#undef COMMON_ASM_OP
-#define COMMON_ASM_OP "\t.common"
-
/* This is how to output a definition of an internal numbered label where
PREFIX is the class of label and NUM is the number within the class. */
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
- sprintf (LABEL, "*.L%s%d", PREFIX, NUM)
-
-/* in Solaris 2.0, linenos are relative to the current fn. */
-#undef ASM_OUTPUT_SOURCE_LINE
-#define ASM_OUTPUT_SOURCE_LINE(file, line) \
- { static int sym_lineno = 1; \
- fprintf (file, ".stabn 68,0,%d,.LM%d-%s\n.LM%d:\n", \
- line, sym_lineno, \
- IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)),\
- sym_lineno); \
- sym_lineno += 1; }
-
-/* But, to make this work, we have to output the stabs for the function
- name *first*... */
-#define DBX_FUNCTION_FIRST
+ sprintf ((LABEL), "*.L%s%ld", (PREFIX), (long)(NUM))
\f
/* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us.
We don't use the standard LIB_SPEC only because we don't yet support c++ */
-/* If we cannot find the GNU *crt*.o files in the STANDARD_STARTFILE_PREFIX
- directory, our fallback strategy must be to look for these files instead
- in the Sun C 2.0 directory. */
-
-#undef MD_STARTFILE_PREFIX
-#define MD_STARTFILE_PREFIX "/opt/SUNWste/SC2.0/"
-
-#undef STARTFILE_SPEC
+#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{!shared: \
%{!symbolic: \
- %{pg:crt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} \
- %{pg:gmon.o%s} \
- %{pg:crti.o%s}%{!pg:crti.o%s} \
- %{ansi:/usr/ccs/lib/values-Xc.o%s} \
- %{!ansi: \
- %{traditional:/usr/ccs/lib/values-Xt.o%s} \
- %{!traditional:/usr/ccs/lib/values-Xa.o%s}}}}"
-
-#undef LIB_SPEC
+ %{p:mcrt1.o%s} \
+ %{!p: \
+ %{pg:gcrt1.o%s gmon.o%s} \
+ %{!pg:crt1.o%s}}}} \
+ crti.o%s \
+ %{ansi:values-Xc.o%s} \
+ %{!ansi:values-Xa.o%s} \
+ crtbegin.o%s"
+
+/* ??? Note: in order for -compat-bsd to work fully,
+ we must somehow arrange to fixincludes /usr/ucbinclude
+ and put the result in $(libsubdir)/ucbinclude. */
+
+#undef LIB_SPEC
#define LIB_SPEC \
- "%{!shared:%{!symbolic:-lc}} \
- %{!shared:%{!symbolic:%{pg:crtn.o%s}%{!pg:crtn.o%s}}}"
+ "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \
+ %{!shared:\
+ %{!symbolic:\
+ %{pthreads:-lpthread} \
+ %{!pthreads:%{threads:-lthread}} \
+ %{p|pg:-ldl} -lc}}"
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
+
+/* This should be the same as in svr4.h, except with -R added. */
+#undef LINK_SPEC
+#define LINK_SPEC \
+ "%{h*} %{v:-V} \
+ %{b} %{Wl,*:%*} \
+ %{static:-dn -Bstatic} \
+ %{shared:-G -dy %{!mimpure-text:-z text}} \
+ %{symbolic:-Bsymbolic -G -dy -z text} \
+ %{G:-G} \
+ %{YP,*} \
+ %{R*} \
+ %{compat-bsd: \
+ %{!YP,*:%{pg:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
+ %{!pg:%{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
+ %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}}} \
+ -R /usr/ucblib} \
+ %{!compat-bsd: \
+ %{!YP,*:%{pg:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
+ %{!pg:%{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
+ %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}} \
+ %{Qy:} %{!Qn:-Qy}"
+
+/* This defines which switch letters take arguments.
+ It is as in svr4.h but with -R added. */
+
+#undef SWITCH_TAKES_ARG
+#define SWITCH_TAKES_ARG(CHAR) \
+ (DEFAULT_SWITCH_TAKES_ARG(CHAR) \
+ || (CHAR) == 'R' \
+ || (CHAR) == 'h' \
+ || (CHAR) == 'x' \
+ || (CHAR) == 'z')
+
+/* Select a format to encode pointers in exception handling data. CODE
+ is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
+ true if the symbol may be affected by dynamic relocations.
+
+ Some Solaris dynamic linkers don't handle unaligned section relative
+ relocs properly, so force them to be aligned. */
+#ifndef HAVE_AS_SPARC_UA_PCREL
+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
+ ((flag_pic || GLOBAL) ? DW_EH_PE_aligned : DW_EH_PE_absptr)
+#endif
+\f
+/* ??? This does not work in SunOS 4.x, so it is not enabled in sparc.h.
+ Instead, it is enabled here, because it does work under Solaris. */
+/* Define for support of TFmode long double and REAL_ARITHMETIC.
+ Sparc ABI says that long double is 4 words. */
+#define LONG_DOUBLE_TYPE_SIZE 128
+
+/* But indicate that it isn't supported by the hardware. */
+#define WIDEST_HARDWARE_FP_SIZE 64
+
+#define STDC_0_IN_SYSTEM_HEADERS 1
+
+#define MULDI3_LIBCALL "__mul64"
+#define DIVDI3_LIBCALL "__div64"
+#define UDIVDI3_LIBCALL "__udiv64"
+#define MODDI3_LIBCALL "__rem64"
+#define UMODDI3_LIBCALL "__urem64"
+
+#undef INIT_SUBTARGET_OPTABS
+#define INIT_SUBTARGET_OPTABS \
+ fixsfdi_libfunc \
+ = init_one_libfunc (TARGET_ARCH64 ? "__ftol" : "__ftoll"); \
+ fixunssfdi_libfunc \
+ = init_one_libfunc (TARGET_ARCH64 ? "__ftoul" : "__ftoull"); \
+ fixdfdi_libfunc \
+ = init_one_libfunc (TARGET_ARCH64 ? "__dtol" : "__dtoll"); \
+ fixunsdfdi_libfunc \
+ = init_one_libfunc (TARGET_ARCH64 ? "__dtoul" : "__dtoull")
+
+/* Solaris allows 64 bit out and global registers in 32 bit mode.
+ sparc_override_options will disable V8+ if not generating V9 code. */
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT (MASK_EPILOGUE + MASK_FPU + MASK_V8PLUS + MASK_LONG_DOUBLE_128)
+\f
+/*
+ * Attempt to turn on access permissions for the stack.
+ *
+ * This code must be defined when compiling gcc but not when compiling
+ * libgcc2.a, unless we're generating code for 64 bits SPARC
+ *
+ * _SC_STACK_PROT is only defined for post 2.6, but we want this code
+ * to run always. 2.6 can change the stack protection but has no way to
+ * query it.
+ *
+ */
+
+/* This declares mprotect (used in TRANSFER_FROM_TRAMPOLINE) for
+ libgcc2.c. */
+/* We don't want to include this because sys/mman.h is not present on
+ some non-Solaris configurations that use sol2.h. */
+#if 0 /* def L_trampoline */
+#include <sys/mman.h>
+#endif
+
+#define TRANSFER_FROM_TRAMPOLINE \
+static int need_enable_exec_stack; \
+ \
+static void check_enabling(void) __attribute__ ((constructor)); \
+static void check_enabling(void) \
+{ \
+ extern long sysconf(int); \
+ \
+ int prot = (int) sysconf(515 /*_SC_STACK_PROT */); \
+ if (prot != 7) \
+ need_enable_exec_stack = 1; \
+} \
+ \
+extern void __enable_execute_stack (void *); \
+void \
+__enable_execute_stack (addr) \
+ void *addr; \
+{ \
+ if (!need_enable_exec_stack) \
+ return; \
+ else { \
+ long size = getpagesize (); \
+ long mask = ~(size-1); \
+ char *page = (char *) (((long) addr) & mask); \
+ char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \
+ \
+ /* 7 is PROT_READ | PROT_WRITE | PROT_EXEC */ \
+ if (mprotect (page, end - page, 7) < 0) \
+ perror ("mprotect of trampoline code"); \
+ } \
+}
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