src/libexec/rtld-elf/debug.c, branch upstream/10.4.0

MFC r257811 (by markj):

2016-03-12T17:12:00Z

Include rtld itself when iterating over loaded ELF objects in dl_iterate_phdr(3). MFC r294373: Do not call callbacks for dl_iterate_phdr(3) with the rtld bind and phdr locks locked. MFC r294470 (by kan): Fix initlist_add_object invocation parameters. MFC r294936 (by kan): Do not unlock rtld_phdr_lock over callback invocations.

Rtld links with the specially built pic static libc library to get some

2011-08-24T20:05:13Z

C runtime services, like printf(). Unfortunately, the multithread-safeness measures in the libc do not work in rtld environment. Rip the kernel printf() implementation and use it in the rtld instead of libc version. This printf does not require any shared global data and thus is mt-safe. Systematically use rtld_printf() and related functions, remove the calls to err(3). Note that stdio is still pulled from libc due to libmap implementaion using fopen(). This is safe but unoptimal, and can be changed later. Reported and tested by: pgj Diagnosed and reviewed by: kan (previous version) Approved by: re (bz)

Fix warnings on 64 bit platforms.

2003-06-19T16:09:18Z

Noticed by: jake

Provide a mechanism for dumping relocation information.

2003-06-19T03:55:38Z

Setting the LD_DUMP_REL_PRE or LD_DUMP_REL_POST environment variables cause rtld-elf to output a table of all relocations. This is useful for debugging.

$Id$ -> $FreeBSD$

1999-08-28T00:22:10Z

Import the ELF dynamic linker. This is the ElfKit version with

1998-03-07T19:24:35Z

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