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Add static constructor/destructor support to Windows NT
From-SVN: r11524
This commit is contained in:
Michael Meissner
parent
5bfaaedad7
commit
2aa35c6312
@ -50,15 +50,16 @@ Boston, MA 02111-1307, USA. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "%{!:crt0%O%s}"
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#define STARTFILE_SPEC "crti%O%s %{!:crt0%O%s}"
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC "crtn%O%s"
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#define PTRDIFF_TYPE "int"
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#define WCHAR_UNSIGNED 1
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#define WCHAR_TYPE_SIZE 16
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#define WCHAR_TYPE "short unsigned int"
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/* XXX set up stack probing */
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#define DBX_DEBUGGING_INFO
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#undef SDB_DEBUGGING_INFO
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#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
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48
gcc/config/rs6000/nt-ci.asm
Normal file
48
gcc/config/rs6000/nt-ci.asm
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@ -0,0 +1,48 @@
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# crti.s for Windows NT
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# Copyright (C) 1996 Free Software Foundation, Inc.
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# Written By Michael Meissner
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2, or (at your option) any
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# later version.
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#
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# In addition to the permissions in the GNU General Public License, the
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# Free Software Foundation gives you unlimited permission to link the
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# compiled version of this file with other programs, and to distribute
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# those programs without any restriction coming from the use of this
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# file. (The General Public License restrictions do apply in other
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# respects; for example, they cover modification of the file, and
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# distribution when not linked into another program.)
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING. If not, write to
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# the Free Software Foundation, 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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#
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# As a special exception, if you link this library with files
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# compiled with GCC to produce an executable, this does not cause
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# the resulting executable to be covered by the GNU General Public License.
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# This exception does not however invalidate any other reasons why
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# the executable file might be covered by the GNU General Public License.
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#
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# This file just supplies labeled starting points for the static constructors
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# and destructors. It is linked in first before other modules.
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.file "crti.s"
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.ident "GNU C crti.s"
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.section .ctors,"w"
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.globl __CTOR_LIST__
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__CTOR_LIST__:
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.section .dtors,"w"
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.globl __DTOR_LIST__
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__DTOR_LIST__:
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48
gcc/config/rs6000/nt-cn.asm
Normal file
48
gcc/config/rs6000/nt-cn.asm
Normal file
@ -0,0 +1,48 @@
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# crtn.s for Windows NT
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# Copyright (C) 1996 Free Software Foundation, Inc.
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# Written By Michael Meissner
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2, or (at your option) any
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# later version.
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#
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# In addition to the permissions in the GNU General Public License, the
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# Free Software Foundation gives you unlimited permission to link the
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# compiled version of this file with other programs, and to distribute
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# those programs without any restriction coming from the use of this
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# file. (The General Public License restrictions do apply in other
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# respects; for example, they cover modification of the file, and
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# distribution when not linked into another program.)
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING. If not, write to
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# the Free Software Foundation, 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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#
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# As a special exception, if you link this library with files
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# compiled with GCC to produce an executable, this does not cause
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# the resulting executable to be covered by the GNU General Public License.
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# This exception does not however invalidate any other reasons why
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# the executable file might be covered by the GNU General Public License.
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#
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# This file just supplies labeled ending points for the static constructors
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# and destructors. It is linked in last after other modules.
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.file "crtn.s"
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.ident "GNU C crtn.s"
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.section .ctors,"w"
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.globl __CTOR_END__
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__CTOR_END__:
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.section .dtors,"w"
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.globl __DTOR_END__
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__DTOR_END__:
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@ -1,15 +1,13 @@
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# Do not build libgcc1.
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LIBGCC1 =
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LIBGCC = stmp-crt
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INSTALL_LIBGCC = install-crt
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CROSS_LIBGCC1 =
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EXTRA_HEADERS = $(srcdir)/ginclude/ppc-asm.h
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# At present, we don't have a cross linker, so turn this off
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LIBGCC1_TEST =
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# These are really part of libgcc1, but this will cause them to be
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# built correctly, so... [taken from t-sparclite]
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LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c ntstack.s
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LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c ntstack.S
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dp-bit.c: $(srcdir)/config/fp-bit.c
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cat $(srcdir)/config/fp-bit.c > dp-bit.c
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@ -18,5 +16,41 @@ fp-bit.c: $(srcdir)/config/fp-bit.c
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echo '#define FLOAT' > fp-bit.c
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cat $(srcdir)/config/fp-bit.c >> fp-bit.c
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ntstack.s: $(srcdir)/config/rs6000/ntstack.asm
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cat $(srcdir)/config/rs6000/ntstack.asm > ntstack.s
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ntstack.S: $(srcdir)/config/rs6000/ntstack.asm
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cat $(srcdir)/config/rs6000/ntstack.asm > ntstack.S
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# For NT we build crti.o and crtn.o which serve to add begin and
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# end labels for the static constructors and destructors.
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# Assemble startup files.
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crti.s: $(srcdir)/config/rs6000/nt-ci.asm
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cat $(srcdir)/config/rs6000/nt-ci.asm >crti.s
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crtn.s: $(srcdir)/config/rs6000/nt-cn.asm
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cat $(srcdir)/config/rs6000/nt-cn.asm >crtn.s
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# Build multiple copies of crt{i,n}.o, one for each target switch.
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stmp-crt: crti.s crtn.s $(GCC_PASSES) stmp-multilib config.status
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for i in `$(GCC_FOR_TARGET) --print-multi-lib`; do \
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dir=`echo $$i | sed -e 's/;.*$$//'`; \
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flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
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$(MAKE) GCC_FOR_TARGET="$(GCC_FOR_TARGET)" \
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LIBGCC2_CFLAGS="$(LIBGCC2_CFLAGS) $${flags}" \
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dir="$${dir}" stmp-crt-sub; \
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if [ $$? -eq 0 ] ; then true; else exit 1; fi; \
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done
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touch stmp-crt
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# Subroutine of stmp-crt so make -n works.
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stmp-crt-sub:
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$(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -c -o $(dir)/crti.o crti.s
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$(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -c -o $(dir)/crtn.o crtn.s
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# Install multiple versions of crt[in].o
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install-crt: stmp-crt install-dir install-multilib
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for i in `$(GCC_FOR_TARGET) --print-multi-lib`; do \
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dir=`echo $$i | sed -e 's/;.*$$//'`; \
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rm -f $(libsubdir)/$${dir}/crt[in].o; \
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$(INSTALL_DATA) $${dir}/crti.o $(libsubdir)/$${dir}/crti.o; \
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$(INSTALL_DATA) $${dir}/crtn.o $(libsubdir)/$${dir}/crtn.o; \
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done
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@ -128,32 +128,6 @@ Boston, MA 02111-1307, USA. */
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output_file_directive (FILE, main_input_filename); \
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}
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/* Define the extra sections we need. We define three: one is the read-only
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data section which is used for constants. This is a csect whose name is
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derived from the name of the input file. The second is for initialized
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global variables. This is a csect whose name is that of the variable.
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The third is the TOC. */
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#undef SELECT_SECTION
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#undef READONLY_DATA_SECTION
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS toc
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/* Define the routines to implement these extra sections. */
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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\
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void \
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toc_section () \
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{ \
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}
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#undef SELECT_RTX_SECTION
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#undef ASM_DECLARE_FUNCTION_NAME
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/* This says how to output an assembler line
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to define a global common symbol. */
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@ -250,6 +224,7 @@ do { \
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}
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#undef ASM_DECLARE_FUNCTION_NAME
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#define ASM_DECLARE_FUNCTION_NAME(FILE,NAME,DECL) \
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{ \
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if (TREE_PUBLIC (DECL)) \
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@ -339,6 +314,81 @@ do { \
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#undef BSS_SECTION_ASM_OP
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#define BSS_SECTION_ASM_OP "\t.section .bss"
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/* Define the extra sections we need. We define a dummy TOC section,
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plus sections to hold the list of static constructors (.ctors) and
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destructors (.dtors). */
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#undef READONLY_DATA_SECTION
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#undef EXTRA_SECTIONS
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#define EXTRA_SECTIONS in_toc, in_ctors, in_dtors
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/* Define the routines to implement these extra sections. */
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#undef EXTRA_SECTION_FUNCTIONS
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#define EXTRA_SECTION_FUNCTIONS \
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CTORS_SECTION_FUNCTION \
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DTORS_SECTION_FUNCTION \
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TOC_SECTION_FUNCTION \
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#define TOC_SECTION_FUNCTION \
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void \
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toc_section () \
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{ \
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}
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#define CTORS_SECTION_ASM_OP ".section\t.ctors"
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#define CTORS_SECTION_FUNCTION \
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void \
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ctors_section () \
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{ \
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if (in_section != in_ctors) \
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{ \
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fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
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in_section = in_ctors; \
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} \
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}
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#define DTORS_SECTION_ASM_OP ".section\t.dtors"
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#define DTORS_SECTION_FUNCTION \
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void \
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dtors_section () \
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{ \
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if (in_section != in_dtors) \
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{ \
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fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
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in_section = in_dtors; \
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} \
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}
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#undef SELECT_SECTION
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#undef SELECT_RTX_SECTION
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/* Make sure __main gets called */
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#define INVOKE__main 1
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/* A C statement (sans semicolon) to output an element in the table of
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global constructors. */
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#undef ASM_OUTPUT_CONSTRUCTOR
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#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
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do { \
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ctors_section (); \
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fprintf (FILE, "\t.ualong "); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, "\n"); \
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} while (0)
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/* A C statement (sans semicolon) to output an element in the table of
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global destructors. */
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#undef ASM_OUTPUT_DESTRUCTOR
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#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
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do { \
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dtors_section (); \
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fprintf (FILE, "\t.ualong "); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, "\n"); \
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} while (0)
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/* Text to write out after a CALL that may be replaced by glue code by
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the loader. The motorola asm demands that, for dll support, a .znop
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be issued after a bl instruction, and the symbol on the .znop is the
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