+2016-10-19 John David Anglin <danglin@gcc.gnu.org>
+
+ * config/pa/pa64-hpux.h (PA_INIT_FRAME_DUMMY_ASM_OP): Move to
+ config/pa/pa64-hpux-lib.h.
+ (PA_CRTBEGIN_HACK): Likewise.
+ (DTOR_LIST_BEGIN): Likewise.
+
2016-10-19 Bernd Edlinger <bernd.edlinger@hotmail.de>
* config/arm/arm.c (arm_emit_coreregs_64bit_shift): Clear the result
#undef SUPPORTS_INIT_PRIORITY
#define SUPPORTS_INIT_PRIORITY (TARGET_GNU_LD ? 1 : 0)
-/* We use DTOR_LIST_BEGIN to carry a bunch of hacks to allow us to use
- the init and fini array sections with both the HP and GNU linkers.
- The linkers setup the required dynamic entries in the dynamic segment
- and the dynamic linker does the calls. This approach avoids using
- collect2.
-
- The first hack is to implement __do_global_ctors_aux in crtbegin as
- it needs to be the first entry in the init array so that it is called
- last. HP got the order of the init array backwards. The DT_INIT_ARRAY
- is supposed to be executed in the same order as the addresses appear in
- the array. DT_FINI_ARRAY is supposed to be executed in the opposite
- order.
-
- 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
- .fini have the execute flag set. So, the assembler has to be hacked
- to munge the standard flags for these sections to make them agree
- with what the HP linker expects. With the GNU linker, we need to
- used the .init_array and .fini_array sections. So, we set up for
- both just in case. Once we have built the table, the linker does
- the rest of the work.
-
- The order is significant. Placing __do_global_ctors_aux first in
- the list, results in it being called last. User specified initializers,
- either using the linker +init command or a plabel, run before the
- initializers specified here. */
-
-/* We need to add frame_dummy to the initializer list if EH_FRAME_SECTION_NAME
- is defined. */
-#if defined(EH_FRAME_SECTION_NAME)
-#define PA_INIT_FRAME_DUMMY_ASM_OP ".dword P%frame_dummy"
-#else
-#define PA_INIT_FRAME_DUMMY_ASM_OP ""
-#endif
-
-/* 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) \
-{ \
- func_ptr *p = __CTOR_LIST__; \
- while (*(p + 1)) \
- p++; \
- for (; *p != (func_ptr) -1; p--) \
- (*p) (); \
-} \
- \
-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 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_CRTBEGIN_HACK
-#else
-#define DTOR_LIST_BEGIN \
-STATIC func_ptr __DTOR_LIST__[1] \
- __attribute__ ((section(".dtors"), aligned(sizeof(func_ptr)))) \
- = { (func_ptr) (-1) }; \
-PA_CRTBEGIN_HACK
-#endif
-
/* If using HP ld do not call pxdb. Use size as a program that does nothing
and returns 0. /bin/true cannot be used because it is a script without
an interpreter. */
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. */
+/* Support attribute weak. However, the GNU linker only resolves weak
+ references if they appear in a shared library. Thus, it is impossible
+ to create a static executable containing weak symbols. This is a problem
+ for the various crt files in libgcc. We don't want undefined weak
+ references to __register_frame_info, __deregister_frame_info and
+ __cxa_finalize introduced by crtbegin.o. So, we provide an archive
+ library of empty stub functions to resolve these symbols. */
#define TARGET_ATTRIBUTE_WEAK
+2016-10-19 John David Anglin <danglin@gcc.gnu.org>
+
+ * config/pa/pa64-hpux-lib.h: New file.
+ (EH_FRAME_SECTION_NAME): Rename to __LIBGCC_EH_FRAME_SECTION_NAME__.
+ (DTORS_SECTION_ASM_OP): Rename to __LIBGCC_DTORS_SECTION_ASM_OP__.
+ * config.host (tm_file): Add pa/pa64-hpux-lib.h to tm_file on
+ hppa*64*-*-hpux11*.
+
2016-10-18 Max Filippov <jcmvbkbc@gmail.com>
* config/xtensa/t-elf (LIB2ADDEH_XTENSA_UNWIND_DW2_FDE): New
tmake_file="$tmake_file pa/t-slibgcc-dwarf-ver"
fi
tmake_file="$tmake_file pa/t-slibgcc-hpux t-slibgcc-hpux"
+ tm_file="$tm_file pa/pa64-hpux-lib.h"
extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o \
libgcc_stub.a"
md_unwind_header=pa/hpux-unwind.h
--- /dev/null
+/* Definitions of target machine for GNU compiler, for HPs running
+ HP-UX using the 64bit runtime model.
+ Copyright (C) 1999-2016 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 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+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 COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+/* We use DTOR_LIST_BEGIN to carry a bunch of hacks to allow us to use
+ the init and fini array sections with both the HP and GNU linkers.
+ The linkers setup the required dynamic entries in the dynamic segment
+ and the dynamic linker does the calls. This approach avoids using
+ collect2.
+
+ The first hack is to implement __do_global_ctors_aux in crtbegin as
+ it needs to be the first entry in the init array so that it is called
+ last. HP got the order of the init array backwards. The DT_INIT_ARRAY
+ is supposed to be executed in the same order as the addresses appear in
+ the array. DT_FINI_ARRAY is supposed to be executed in the opposite
+ order.
+
+ 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
+ .fini have the execute flag set. So, the assembler has to be hacked
+ to munge the standard flags for these sections to make them agree
+ with what the HP linker expects. With the GNU linker, we need to
+ used the .init_array and .fini_array sections. So, we set up for
+ both just in case. Once we have built the table, the linker does
+ the rest of the work.
+ The order is significant. Placing __do_global_ctors_aux first in
+ the list, results in it being called last. User specified initializers,
+ either using the linker +init command or a plabel, run before the
+ initializers specified here. */
+
+/* We need to add frame_dummy to the initializer list if EH_FRAME_SECTION_NAME
+ is defined. */
+#if defined(__LIBGCC_EH_FRAME_SECTION_NAME__)
+#define PA_INIT_FRAME_DUMMY_ASM_OP ".dword P%frame_dummy"
+#else
+#define PA_INIT_FRAME_DUMMY_ASM_OP ""
+#endif
+
+/* 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) \
+{ \
+ func_ptr *p = __CTOR_LIST__; \
+ while (*(p + 1)) \
+ p++; \
+ for (; *p != (func_ptr) -1; p--) \
+ (*p) (); \
+} \
+ \
+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 crtbegin hack. */
+#ifdef __LIBGCC_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_CRTBEGIN_HACK
+#else
+#define DTOR_LIST_BEGIN \
+STATIC func_ptr __DTOR_LIST__[1] \
+ __attribute__ ((section(".dtors"), aligned(sizeof(func_ptr)))) \
+ = { (func_ptr) (-1) }; \
+PA_CRTBEGIN_HACK
+#endif
projects / thirdparty / gcc.git / commitdiff
