mirror of
git://sourceware.org/git/glibc.git
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8a594e3cb7
* time/strftime.c (strftime: do_number): Adjust P and I after sprintf
in case it wrote fewer than MAXDIGITS chars.
* stdio/fwrite.c (fwrite: fill_buffer): Separate flushing for last
newline from flushing full buffer in loop, fix test so no fflush is
done when last byte written exactly fills the buffer.
* nss/Makefile ($(services:%=$(objpfx)libnss_%.so)): Depend on libc.so.
* sysdeps/mach/hurd/Makefile (LDLIBS-c.so): Variable removed.
(libc.so): Instead, give this deps on lib{mach,hurd}user.so.
* elf/dl-debug.c (_dl_debug_initialize): Use LDBASE arg instead of
extracting _dl_rtld_map.l_addr.
* sysdeps/i386/dl-machine.h (elf_machine_rel): Declare _dl_rtld_map as
weak.
* sysdeps/alpha/dl-machine.h (elf_machine_rela): Likewise.
* shlib-versions (*-*-*): Set libnss_db=1.
* elf/rtld.c (dl_main): Set _dl_rtld_map's DT_DEBUG location too.
57 lines
2.1 KiB
C
57 lines
2.1 KiB
C
/* Communicate dynamic linker state to the debugger at runtime.
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Copyright (C) 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <link.h>
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/* This structure communicates dl state to the debugger. The debugger
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normally finds it via the DT_DEBUG entry in the dynamic section, but in
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a statically-linked program there is no dynamic section for the debugger
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to examine and it looks for this particular symbol name. */
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struct r_debug _r_debug;
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/* Initialize _r_debug if it has not already been done. The argument is
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the run-time load address of the dynamic linker, to be put in
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_r_debug.r_ldbase. Returns the address of _r_debug. */
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struct r_debug *
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_dl_debug_initialize (ElfW(Addr) ldbase)
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{
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if (_r_debug.r_brk == 0)
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{
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/* Tell the debugger where to find the map of loaded objects. */
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_r_debug.r_version = 1 /* R_DEBUG_VERSION XXX */;
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_r_debug.r_ldbase = ldbase;
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_r_debug.r_map = _dl_loaded;
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_r_debug.r_brk = (ElfW(Addr)) &_dl_debug_state;
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}
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return &_r_debug;
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}
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/* This function exists solely to have a breakpoint set on it by the
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debugger. The debugger is supposed to find this function's address by
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examining the r_brk member of struct r_debug, but GDB 4.15 in fact looks
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for this particular symbol name in the PT_INTERP file. */
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void
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_dl_debug_state (void)
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{
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}
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