/* Definitions of target machine for GNU compiler, for HPs running
HPUX using the 64bit runtime model.
- Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005 Free Software Foundation,
+ Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005, 2007 Free Software Foundation,
Inc.
This file is part of GCC.
GCC 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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
/* We can debug dynamically linked executables on hpux11; we also
want dereferencing of a NULL pointer to cause a SEGV. Do not move
%{!shared:%{pg:-L/lib/pa20_64/libp -L/usr/lib/pa20_64/libp %{!static:\
%nWarning: consider linking with `-static' as system libraries with\n\
%n profiling support are only provided in archive format}}}\
- %{mhp-ld:+Accept TypeMismatch -z} -E %{mlinker-opt:-O} %{!shared:-u main}\
+ %{mhp-ld:+Accept TypeMismatch -z} -E %{mlinker-opt:-O}\
+ %{!shared:-u main %{!nostdlib:%{!nodefaultlibs:-u __cxa_finalize}}}\
%{static:-a archive} %{shared:%{mhp-ld:-b}%{!mhp-ld:-shared}}"
#else
#define LINK_SPEC \
%{!shared:%{pg:-L/lib/pa20_64/libp -L/usr/lib/pa20_64/libp %{!static:\
%nWarning: consider linking with `-static' as system libraries with\n\
%n profiling support are only provided in archive format}}}\
- %{!mgnu-ld:+Accept TypeMismatch -z} -E %{mlinker-opt:-O} %{!shared:-u main}\
+ %{!mgnu-ld:+Accept TypeMismatch -z} -E %{mlinker-opt:-O}\
+ %{!shared:-u main %{!nostdlib:%{!nodefaultlibs:-u __cxa_finalize}}}\
%{static:-a archive} %{shared:%{mgnu-ld:-shared}%{!mgnu-ld:-b}}"
#endif
#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GNU_LD)
#define LIB_SPEC \
"%{!shared:\
- %{!p:%{!pg: %{static|mt|pthread:-lpthread} -lc\
+ %{!p:%{!pg:%{static|mt|pthread:%{fopenmp:%{static:-a shared} -lrt\
+ %{static:-a archive}} -lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
%{p:%{!pg:%{static:%{!mhp-ld:-a shared}%{mhp-ld:-a archive_shared}}\
- -lprof %{static:-a archive} %{static|mt|pthread:-lpthread} -lc\
+ -lprof %{static:-a archive}\
+ %{static|mt|pthread:%{fopenmp:%{static:-a shared} -lrt\
+ %{static:-a archive}} -lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
%{pg:%{static:%{!mhp-ld:-a shared}%{mhp-ld:-a archive_shared}}\
- -lgprof %{static:-a archive} %{static|mt|pthread:-lpthread} -lc\
+ -lgprof %{static:-a archive}\
+ %{static|mt|pthread:%{fopenmp:%{static:-a shared} -lrt\
+ %{static:-a archive}} -lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
- /usr/lib/pa20_64/milli.a"
+ %{shared:%{mt|pthread:-lpthread}}"
#else
#define LIB_SPEC \
"%{!shared:\
- %{!p:%{!pg: %{static|mt|pthread:-lpthread} -lc\
+ %{!p:%{!pg:%{static|mt|pthread:%{fopenmp:%{static:-a shared} -lrt\
+ %{static:-a archive}} -lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
%{p:%{!pg:%{static:%{mgnu-ld:-a shared}%{!mgnu-ld:-a archive_shared}}\
- -lprof %{static:-a archive} %{shatic|mt|pthread:-lpthread} -lc\
+ -lprof %{static:-a archive}\
+ %{static|mt|pthread:%{fopenmp:%{static:-a shared} -lrt\
+ %{static:-a archive}} -lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
%{pg:%{static:%{mgnu-ld:-a shared}%{!mgnu-ld:-a archive_shared}}\
- -lgprof %{static:-a archive} %{static|mt|pthread:-lpthread} -lc\
+ -lgprof %{static:-a archive}\
+ %{static|mt|pthread:%{fopenmp:%{static:-a shared} -lrt\
+ %{static:-a archive}} -lpthread} -lc\
%{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}}\
- /usr/lib/pa20_64/milli.a"
+ %{shared:%{mt|pthread:-lpthread}}"
#endif
+/* The libgcc_stub.a and milli.a libraries need to come last. */
+#undef LINK_GCC_C_SEQUENCE_SPEC
+#define LINK_GCC_C_SEQUENCE_SPEC "\
+ %G %L %G %{!nostdlib:%{!nodefaultlibs:%{!shared:-lgcc_stub}\
+ /usr/lib/pa20_64/milli.a}}"
+
/* Under hpux11, the normal location of the `ld' and `as' programs is the
/usr/ccs/bin directory. */
-#ifndef CROSS_COMPILE
+#ifndef CROSS_DIRECTORY_STRUCTURE
#undef MD_EXEC_PREFIX
#define MD_EXEC_PREFIX "/usr/ccs/bin"
#endif
is the /usr/ccs/lib/pa20_64 directory. Some files may also be in the
/opt/langtools/lib/pa20_64 directory. */
-#ifndef CROSS_COMPILE
+#ifndef CROSS_DIRECTORY_STRUCTURE
#undef MD_STARTFILE_PREFIX
#define MD_STARTFILE_PREFIX "/usr/ccs/lib/pa20_64/"
#endif
-#ifndef CROSS_COMPILE
+#ifndef CROSS_DIRECTORY_STRUCTURE
#undef MD_STARTFILE_PREFIX_1
#define MD_STARTFILE_PREFIX_1 "/opt/langtools/lib/pa20_64/"
#endif
dynamic loader to work correctly. This is equivalent to the
HP assembler's .IMPORT directive but relates more directly to
ELF object file types. */
+#undef ASM_OUTPUT_EXTERNAL
#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
pa_hpux_asm_output_external ((FILE), (DECL), (NAME))
#define ASM_OUTPUT_EXTERNAL_REAL(FILE, DECL, NAME) \
the array. DT_FINI_ARRAY is supposed to be executed in the opposite
order.
- The second hack is stubs for __cxa_finalize and _Jv_RegisterClasses.
- The HP implementation of undefined weak symbols is broken. The linker
- and dynamic loader both search for undefined weak symbols contrary the
- generic System V ABI. An undefined weak symbol should resolve to a
- value of 0 rather than causing an error. The prototypes for
- __cxa_finalize and _Jv_RegisterClasses in crtstuff.c are weak when
- weak is supported (GNU as), so in theory a strong define should override
- the stub functions provided here.
-
- The final hack is a set of plabels to implement the effect of
+ The second hack is a set of plabels to implement the effect of
CRT_CALL_STATIC_FUNCTION. HP-UX 11 only supports DI_INIT_ARRAY and
DT_FINI_ARRAY and they put the arrays in .init and .fini, rather than
in .init_array and .fini_array. The standard defines for .init and
either using the linker +init command or a plabel, run before the
initializers specified here. */
-/* We need a __cxa_finalize stub if CRTSTUFFS_O is defined. */
-#ifdef CRTSTUFFS_O
-#define PA_CXA_FINALIZE_STUB \
-extern void __cxa_finalize (void *) TARGET_ATTRIBUTE_WEAK; \
-void \
-__cxa_finalize (void *p __attribute__((unused))) {}
-#else
-#define PA_CXA_FINALIZE_STUB
-#endif
-
-/* We need a _Jv_RegisterClasses stub if JCR_SECTION_NAME is defined. */
-#ifdef JCR_SECTION_NAME
-#define PA_JV_REGISTERCLASSES_STUB \
-void \
-_Jv_RegisterClasses (void *p __attribute__((unused))) {}
-#else
-#define PA_JV_REGISTERCLASSES_STUB
-#endif
-
/* We need to add frame_dummy to the initializer list if EH_FRAME_SECTION_NAME
or JCR_SECTION_NAME is defined. */
#if defined(EH_FRAME_SECTION_NAME) || defined(JCR_SECTION_NAME)
#define PA_INIT_FRAME_DUMMY_ASM_OP ""
#endif
-#define PA_INIT_FINI_HACK \
+/* The following hack sets up the .init, .init_array, .fini and
+ .fini_array sections. */
+#define PA_CRTBEGIN_HACK \
+asm (TEXT_SECTION_ASM_OP); \
static void __attribute__((used)) \
__do_global_ctors_aux (void) \
{ \
(*p) (); \
} \
\
-PA_CXA_FINALIZE_STUB \
-PA_JV_REGISTERCLASSES_STUB \
- \
asm (HP_INIT_ARRAY_SECTION_ASM_OP); \
+asm (".align 8"); \
asm (".dword P%__do_global_ctors_aux"); \
asm (PA_INIT_FRAME_DUMMY_ASM_OP); \
asm (GNU_INIT_ARRAY_SECTION_ASM_OP); \
+asm (".align 8"); \
asm (".dword P%__do_global_ctors_aux"); \
asm (PA_INIT_FRAME_DUMMY_ASM_OP); \
asm (HP_FINI_ARRAY_SECTION_ASM_OP); \
+asm (".align 8"); \
asm (".dword P%__do_global_dtors_aux"); \
asm (GNU_FINI_ARRAY_SECTION_ASM_OP); \
+asm (".align 8"); \
asm (".dword P%__do_global_dtors_aux")
/* The following two variants of DTOR_LIST_BEGIN are identical to those
- in crtstuff.c except for the addition of the above init-fini hack. */
+ in crtstuff.c except for the addition of the above crtbegin hack. */
#ifdef DTORS_SECTION_ASM_OP
#define DTOR_LIST_BEGIN \
asm (DTORS_SECTION_ASM_OP); \
STATIC func_ptr __DTOR_LIST__[1] \
__attribute__ ((aligned(sizeof(func_ptr)))) \
= { (func_ptr) (-1) }; \
-PA_INIT_FINI_HACK
+PA_CRTBEGIN_HACK
#else
#define DTOR_LIST_BEGIN \
STATIC func_ptr __DTOR_LIST__[1] \
__attribute__ ((section(".dtors"), aligned(sizeof(func_ptr)))) \
= { (func_ptr) (-1) }; \
-PA_INIT_FINI_HACK
+PA_CRTBEGIN_HACK
#endif
/* If using HP ld do not call pxdb. Use size as a program that does nothing
an interpreter. */
#define INIT_ENVIRONMENT "LD_PXDB=/usr/ccs/bin/size"
-/* The HPUX dynamic linker objects to weak symbols with no
- definitions, so do not use them in gthr-posix.h. */
+/* The HPUX dynamic linker objects to undefined weak symbols, so do
+ not use them in gthr-posix.h. */
#define GTHREAD_USE_WEAK 0
+
+/* We don't want undefined weak references to __register_frame_info,
+ __deregister_frame_info, _Jv_RegisterClasses and __cxa_finalize
+ introduced by crtbegin.o. The GNU linker only resolves weak
+ references if they appear in a shared library. Thus, it would be
+ impossible to create a static executable if the symbols were weak.
+ So, the best solution seems to be to make the symbols strong and
+ provide an archive library of empty stub functions. */
+#define TARGET_ATTRIBUTE_WEAK
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