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* MFC r282551: Remove historical GNUC testemaste2015-08-311-4/+0
| | | | | | | The requirement is for a GCC-compatible compiler and not necessarily GCC itself. However, we currently expect any compiler used for building the whole of FreeBSD to be GCC-compatible and many things will break if not; there's no longer a need to have an explicit test for this in rtld.
* Use C99's varadic macro syntax instead of gcc's.des2006-03-281-2/+2
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* Add initial support for compiling a special 32 bit version ofpeter2004-03-211-2/+9
| | | | | | | ld-elf.so.1 on 64 bit systems. Most of this involves using alternate paths, environment variables and diagnostic messages. The build glue is seperate.
* Use STD{ERR,IN,OUT}_FILENO instead of their numeric values. Thesheldonh2001-07-261-1/+1
| | | | | | | definitions are more readable, and it's possible that they're more portable to pathalogical platforms. Submitted by: David Hill <david@phobia.ms>
* Add a new function dllockinit() for registering thread lockingjdp1999-12-271-0/+9
| | | | | | | | | | | | | | | | | | | functions to be used by the dynamic linker. This can be called by threads packages at start-up time. I will add the call to libc_r soon. Also add a default locking method that is used up until dllockinit() is called. The default method works by blocking SIGVTALRM, SIGPROF, and SIGALRM in critical sections. It is based on the observation that most user-space threads packages implement thread preemption with one of these signals (usually SIGVTALRM). The dynamic linker has never been reentrant, but it became less reentrant in revision 1.34 of "src/libexec/rtld-elf/rtld.c". Starting with that revision, multiple threads each doing lazy binding could interfere with each other. The usual symptom was that a symbol was falsely reported as undefined at start-up time. It was rare but not unseen. This commit fixes it.
* Enable -Wformat checking for debug_printf().jdp1999-09-041-1/+3
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* $Id$ -> $FreeBSD$peter1999-08-281-1/+1
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* Import the ELF dynamic linker. This is the ElfKit version withjdp1998-03-071-0/+48
quite a few enhancements and bug fixes. There are still some known deficiencies, but it should be adequate to get us started with ELF. Submitted by: John Polstra <jdp@polstra.com>
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