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Diffstat (limited to 'gcc/config/m32r/initfini.c')
| -rw-r--r-- | gcc/config/m32r/initfini.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/gcc/config/m32r/initfini.c b/gcc/config/m32r/initfini.c deleted file mode 100644 index 6e7d58614c7..00000000000 --- a/gcc/config/m32r/initfini.c +++ /dev/null @@ -1,168 +0,0 @@ -/* .init/.fini section handling + C++ global constructor/destructor handling. - This file is based on crtstuff.c, sol2-crti.asm, sol2-crtn.asm. - - Copyright (C) 1996, 1997, 1998, 2006, 2009 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. - - Under Section 7 of GPL version 3, you are granted additional - permissions described in the GCC Runtime Library Exception, version - 3.1, as published by the Free Software Foundation. - - You should have received a copy of the GNU General Public License and - a copy of the GCC Runtime Library Exception along with this program; - see the files COPYING3 and COPYING.RUNTIME respectively. If not, see - <http://www.gnu.org/licenses/>. */ - -/* Declare a pointer to void function type. */ -typedef void (*func_ptr) (void); - -#ifdef CRT_INIT - -/* NOTE: In order to be able to support SVR4 shared libraries, we arrange - to have one set of symbols { __CTOR_LIST__, __DTOR_LIST__, __CTOR_END__, - __DTOR_END__ } per root executable and also one set of these symbols - per shared library. So in any given whole process image, we may have - multiple definitions of each of these symbols. In order to prevent - these definitions from conflicting with one another, and in order to - ensure that the proper lists are used for the initialization/finalization - of each individual shared library (respectively), we give these symbols - only internal (i.e. `static') linkage, and we also make it a point to - refer to only the __CTOR_END__ symbol in crtfini.o and the __DTOR_LIST__ - symbol in crtinit.o, where they are defined. */ - -static func_ptr __CTOR_LIST__[1] - __attribute__ ((used, section (".ctors"))) - = { (func_ptr) (-1) }; - -static func_ptr __DTOR_LIST__[1] - __attribute__ ((used, section (".dtors"))) - = { (func_ptr) (-1) }; - -/* Run all the global destructors on exit from the program. */ - -/* Some systems place the number of pointers in the first word of the - table. On SVR4 however, that word is -1. In all cases, the table is - null-terminated. On SVR4, we start from the beginning of the list and - invoke each per-compilation-unit destructor routine in order - until we find that null. - - Note that this function MUST be static. There will be one of these - functions in each root executable and one in each shared library, but - although they all have the same code, each one is unique in that it - refers to one particular associated `__DTOR_LIST__' which belongs to the - same particular root executable or shared library file. */ - -static void __do_global_dtors (void) -asm ("__do_global_dtors") __attribute__ ((used, section (".text"))); - -static void -__do_global_dtors (void) -{ - func_ptr *p; - - for (p = __DTOR_LIST__ + 1; *p; p++) - (*p) (); -} - -/* .init section start. - This must appear at the start of the .init section. */ - -asm ("\n\ - .section .init,\"ax\",@progbits\n\ - .balign 4\n\ - .global __init\n\ -__init:\n\ - push fp\n\ - push lr\n\ - mv fp,sp\n\ - seth r0, #shigh(__fini)\n\ - add3 r0, r0, #low(__fini)\n\ - bl atexit\n\ - .fillinsn\n\ -"); - -/* .fini section start. - This must appear at the start of the .init section. */ - -asm ("\n\ - .section .fini,\"ax\",@progbits\n\ - .balign 4\n\ - .global __fini\n\ -__fini:\n\ - push fp\n\ - push lr\n\ - mv fp,sp\n\ - bl __do_global_dtors\n\ - .fillinsn\n\ -"); - -#endif /* CRT_INIT */ - -#ifdef CRT_FINI - -/* Put a word containing zero at the end of each of our two lists of function - addresses. Note that the words defined here go into the .ctors and .dtors - sections of the crtend.o file, and since that file is always linked in - last, these words naturally end up at the very ends of the two lists - contained in these two sections. */ - -static func_ptr __CTOR_END__[1] - __attribute__ ((used, section (".ctors"))) - = { (func_ptr) 0 }; - -static func_ptr __DTOR_END__[1] - __attribute__ ((used, section (".dtors"))) - = { (func_ptr) 0 }; - -/* Run all global constructors for the program. - Note that they are run in reverse order. */ - -static void __do_global_ctors (void) -asm ("__do_global_ctors") __attribute__ ((used, section (".text"))); - -static void -__do_global_ctors (void) -{ - func_ptr *p; - - for (p = __CTOR_END__ - 1; *p != (func_ptr) -1; p--) - (*p) (); -} - -/* .init section end. - This must live at the end of the .init section. */ - -asm ("\n\ - .section .init,\"ax\",@progbits\n\ - bl __do_global_ctors\n\ - mv sp,fp\n\ - pop lr\n\ - pop fp\n\ - jmp lr\n\ - .fillinsn\n\ -"); - -/* .fini section end. - This must live at the end of the .fini section. */ - -asm ("\n\ - .section .fini,\"ax\",@progbits\n\ - mv sp,fp\n\ - pop lr\n\ - pop fp\n\ - jmp lr\n\ - .fillinsn\n\ -"); - -#endif /* CRT_FINI */ |