From 4d6acc61fa6892b40eaf94de4ff506ff83e37490 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 13 Jun 1996 04:06:45 +0000 Subject: Thu Jun 13 00:02:25 1996 Roland McGrath * elf/dl-lookup.c (_dl_lookup_symbol): If no value and *REF is null, consider it a strong reference and give the error. Wed Jun 12 15:52:46 1996 Roland McGrath * elf/dl-open.c (_dl_open): Correctly terminate relocating loop after relocating NEW when it's the only new object. * elf/dl-init.c (_dl_init_next): When out of initializers, set _r_debug.r_state to RT_CONSISTENT and call _dl_debug_state just before return. * elf/rtld.c (dl_main): Move _dl_debug_initialize call after relocation. Call it unconditionally and only fill in DT_DEBUG if it's present. Then call _dl_debug_state with r_state RT_ADD before running initializers. * elf/dl-open.c (_dl_open): Call _dl_debug_initialize and then call _dl_debug_state with r_state RT_ADD before running initializers * elf/dl-close.c (_dl_close): Call _dl_debug_state with r_state RT_DELETE before running finalizers and with RT_CONSISTENT just before return. * elf/Makefile (dl-routines): Add dl-debug. * elf/dl-debug.c: New file. * elf/rtld.c (_dl_r_debug): Rename to _r_debug and move to dl-debug.c. (_dl_r_debug_state): Rename to _dl_debug_state and likewise move. (dl_main): Use _dl_debug_initialize. * elf/link.h: Fix name to _dl_debug_state in decl. (_dl_debug_initialize): Declare new function from dl-debug.c. (_r_debug): Declare it. * Makerules (distinfo-vars): Add install-{lib,data,bin,sbin,others}. In distinfo set $(subdir)-VAR and then set VAR to $($(subdir)-VAR). * Makeconfig (rpath-link): New variable; add $(elfobjdir). (default-rpath): Use it. (built-program-cmd): Use it in LD_LIBRARY_PATH. * Makeconfig (sysdep-configures): Prepend $(sysdep_dir) to names tried. * sysdeps/unix/Dist: Add make-syscalls.sh. * misc/Makefile (headers): Add sys/swap.h. * posix/unistd.h: Remove decls for swapon, swapoff. * sysdeps/generic/sys/swap.h: New file. * sysdeps/unix/sysv/linux/sys/swap.h: New file. * sysdeps/unix/sysv/linux/gnu/types.h: Remove temporary hack #define of __kernel_fsid_t. It is correctly defines in now. --- elf/link.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'elf/link.h') diff --git a/elf/link.h b/elf/link.h index 6910445095..f43ec411f8 100644 --- a/elf/link.h +++ b/elf/link.h @@ -62,6 +62,9 @@ struct r_debug ElfW(Addr) r_ldbase; /* Base address the linker is loaded at. */ }; +/* This is the instance of that structure used by the dynamic linker. */ +extern struct r_debug _r_debug; + /* This symbol refers to the "dynamic structure" in the `.dynamic' section of whatever module refers to `_DYNAMIC'. So, to find its own `struct r_debug', a program could do: @@ -291,7 +294,12 @@ extern void _dl_fini (void); any shared object mappings. The `r_state' member of `struct r_debug' says what change is taking place. This function's address is the value of the `r_brk' member. */ -extern void _dl_r_debug_state (void); +extern void _dl_debug_state (void); + +/* Initialize `struct r_debug' if it has not already been done. The + argument is the run-time load address of the dynamic linker, to be put + in the `r_ldbase' member. Returns the address of the structure. */ +extern struct r_debug *_dl_debug_initialize (ElfW(Addr) ldbase); #endif /* link.h */ -- cgit v1.2.3