src-test2/libexec/rtld-elf/map_object.c, branch release/4.6.1

Get the actual pathname of the dynamic linker from the executable's

1999-08-30T01:54:13Z

PT_INTERP program header entry, to ensure that gdb always finds the right dynamic linker. Use obj->relocbase to simplify a few calculations where appropriate.

When checking to see if a shared object is already loaded, look for

1999-08-30T01:50:41Z

a device/inode match if no pathname match is found.

Revamp the symbol lookup algorithm to cope better with objects

1999-08-30T01:48:19Z

loaded separately by dlopen that have global symbols with identical names. Viewing each dlopened object as a DAG which is linked by its DT_NEEDED entries in the dynamic table, the search order is as follows: * If the referencing object was linked with -Bsymbolic, search it internally. * Search all dlopened DAGs containing the referencing object. * Search all objects loaded at program start up. * Search all objects which were dlopened() using the RTLD_GLOBAL flag (which is now supported too). The search terminates as soon as a strong definition is found. Lacking that, the first weak definition is used. These rules match those of Solaris, as best I could determine them from its vague manual pages and the results of experiments I performed. PR: misc/12438

$Id$ -> $FreeBSD$

1999-08-28T00:22:10Z

Change many asserts into normal errors. They were all for conditions

1999-07-18T00:02:19Z

caused by invalid shared objects rather than by internal errors. Enable format string mismatch checking for _rtld_error().

Add alpha support.

1998-09-04T19:03:57Z

Submitted by: John Birrell (with extra hacks by me) Obtained from: Probably NetBSD

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