diff options
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/misc/internals/Makefile | 10 | ||||
| -rw-r--r-- | libc/misc/internals/abi-note.S | 72 | ||||
| -rw-r--r-- | libc/misc/internals/abi-tag.h | 2 | 
3 files changed, 83 insertions, 1 deletions
| diff --git a/libc/misc/internals/Makefile b/libc/misc/internals/Makefile index e9b4e55b8..473ea926c 100644 --- a/libc/misc/internals/Makefile +++ b/libc/misc/internals/Makefile @@ -27,7 +27,11 @@ include $(TOPDIR)Rules.mak  CSRC=__uClibc_main.c tempname.c errno.c __errno_location.c __h_errno_location.c  COBJS=$(patsubst %.c,%.o, $(CSRC)) -OBJS=$(COBJS) + +SSRC=abi-note.S +SOBJS=$(patsubst %.S,%.o, $(SSRC)) + +OBJS=$(COBJS) $(SOBJS)  all: $(OBJS) interp.o $(LIBC) @@ -47,6 +51,10 @@ $(COBJS): %.o : %.c  	$(CC) $(CFLAGS) -c $< -o $@  	$(STRIPTOOL) -x -R .note -R .comment $*.o +$(SOBJS): %.o : %.S +	$(CC) $(CFLAGS) -c $< -o $@ +	$(STRIPTOOL) -x -R .note -R .comment $*.o +  interp.o: %.o : %.c  	$(CC) $(CFLAGS) -c $< -o $@  	$(STRIPTOOL) -x -R .note -R .comment $*.o diff --git a/libc/misc/internals/abi-note.S b/libc/misc/internals/abi-note.S new file mode 100644 index 000000000..5c30c35a8 --- /dev/null +++ b/libc/misc/internals/abi-note.S @@ -0,0 +1,72 @@ +/* Special .init and .fini section support. +   Copyright (C) 1997, 2001 Free Software Foundation, Inc. +   This file is part of the GNU C Library. + +   The GNU C Library is free software; you can redistribute it and/or +   modify it under the terms of the GNU Lesser General Public +   License as published by the Free Software Foundation; either +   version 2.1 of the License, or (at your option) any later version. + +   In addition to the permissions in the GNU Lesser General Public +   License, the Free Software Foundation gives you unlimited +   permission to link the compiled version of this file with other +   programs, and to distribute those programs without any restriction +   coming from the use of this file.  (The Lesser General Public +   License restrictions do apply in other respects; for example, they +   cover modification of the file, and distribution when not linked +   into another program.) + +   The GNU C Library 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 +   Lesser General Public License for more details. + +   You should have received a copy of the GNU Lesser General Public +   License along with the GNU C Library; if not, write to the Free +   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +   02111-1307 USA.  */ + +/* Define an ELF note identifying the operating-system ABI that the +   executable was created for.  The ELF note information identifies a +   particular OS or coordinated development effort within which the +   ELF header's e_machine value plus (for dynamically linked programs) +   the PT_INTERP dynamic linker name and DT_NEEDED shared library +   names fully identify the runtime environment required by an +   executable. + +   The general format of ELF notes is as follows. +   Offsets and lengths are bytes or (parenthetical references) to the +   values in other fields. + +offset	length	contents	 +0	4	length of name +4	4	length of data +8	4	note type +12	(0)	vendor name +		- null-terminated ASCII string, padded to 4-byte alignment +12+(0)	(4)	note data,  + +   The GNU project and cooperating development efforts (including the +   Linux community) use note type 1 and a vendor name string of "GNU" +   for a note descriptor that indicates ABI requirements.  The note data +   is four 32-bit words.  The first of these is an operating system +   number (0=Linux, 1=Hurd, 2=Solaris, ...) and the remaining three +   identify the earliest release of that OS that supports this ABI. +   See abi-tags (top level) for details. */ + +#include <abi-tag.h>		/* OS-specific ABI tag value */ +	 +/* The linker (GNU ld 2.8 and later) recognizes an allocated section whose +   name begins with `.note' and creates a PT_NOTE program header entry +   pointing at it. */ + +	.section ".note.ABI-tag", "a" +	.align 4 +	.long 1f - 0f		/* name length */ +	.long 3f - 2f		/* data length */ +	.long  1		/* note type */ +0:	.asciz "GNU"		/* vendor name */ +1:	.align 4		 +2:	.long __ABI_TAG_OS	/* note data: the ABI tag */ +	.long __ABI_TAG_VERSION +3:	.align 4		/* pad out section */ diff --git a/libc/misc/internals/abi-tag.h b/libc/misc/internals/abi-tag.h new file mode 100644 index 000000000..94b67e9ee --- /dev/null +++ b/libc/misc/internals/abi-tag.h @@ -0,0 +1,2 @@ +#define __ABI_TAG_OS 0 +#define __ABI_TAG_VERSION 2,0,0 | 
