180 lines
5.7 KiB
Diff
180 lines
5.7 KiB
Diff
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Fedora GDB patches <invalid@email.com>
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Date: Fri, 27 Oct 2017 21:07:50 +0200
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Subject: RFC: add DWARF index support
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FileName: gdb-gdb-add-index-script.patch
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;; Provide /usr/bin/gdb-add-index for rpm-build (Tom Tromey).
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;;=push: Re-check against the upstream version.
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http://sourceware.org/ml/gdb-patches/2010-07/msg00184.html
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Jan Kratochvil: Fixed $d -> $dir.
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Jan Kratochvil: Remove /dev/null redirection.
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>>>>> "Tom" == Tom Tromey <tromey@redhat.com> writes:
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Tom> This patch series adds support for a DWARF index to gdb.
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Roland suggested we wrap up the index-creation code into a helper
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script.
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I'm not sure if this is something people would want in gdb proper, but I
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figured I would send it here just in case.
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Tom
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2010-07-09 Tom Tromey <tromey@redhat.com>
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* Makefile.in (install-only): Install gdb-add-index.
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* gdb-add-index: New file.
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2010-07-09 Tom Tromey <tromey@redhat.com>
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* gdb.texinfo (Index Files): Mention gdb-add-index.
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>From 30714fe719e61baea03d0dc5793eb0d564faebb7 Mon Sep 17 00:00:00 2001
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From: Tom Tromey <tromey@redhat.com>
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Date: Fri, 9 Jul 2010 11:17:54 -0600
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Subject: [PATCH 4/4] add gdb-add-index
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Subject: [PATCH 4/4] add gdb-add-index
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---
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gdb/Makefile.in | 9 +++++++++
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gdb/doc/Makefile.in | 9 ++++++++-
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gdb/doc/gdb.texinfo | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++
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3 files changed, 74 insertions(+), 1 deletion(-)
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diff --git a/gdb/Makefile.in b/gdb/Makefile.in
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index e77d6a5c03..3142ad6af1 100644
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--- a/gdb/Makefile.in
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+++ b/gdb/Makefile.in
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@@ -1770,6 +1770,15 @@ install-only: install-gstack $(CONFIG_INSTALL)
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$(INSTALL_SCRIPT) gcore \
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$(DESTDIR)$(bindir)/$$transformed_name; \
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fi
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+ transformed_name=`t='$(program_transform_name)'; \
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+ echo gdb-add-index | sed -e "$$t"` ; \
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+ if test "x$$transformed_name" = x; then \
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+ transformed_name=gdb-add-index ; \
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+ else \
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+ true ; \
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+ fi ; \
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+ $(INSTALL_PROGRAM) $(srcdir)/contrib/gdb-add-index.sh \
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+ $(DESTDIR)$(bindir)/$$transformed_name$(EXEEXT)
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@$(MAKE) DO=install "DODIRS=$(SUBDIRS)" $(FLAGS_TO_PASS) subdir_do
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install-strip:
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diff --git a/gdb/doc/Makefile.in b/gdb/doc/Makefile.in
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index eafadee899..0323bc4ecb 100644
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--- a/gdb/doc/Makefile.in
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+++ b/gdb/doc/Makefile.in
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@@ -174,7 +174,7 @@ POD2MAN5 = pod2man --center="GNU Development Tools" \
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--release="gdb-`sed q version.subst`" --section=5
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# List of man pages generated from gdb.texi
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-MAN1S = gdb.1 gdbserver.1 gcore.1
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+MAN1S = gdb.1 gdbserver.1 gcore.1 gdb-add-index.1
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MAN5S = gdbinit.5
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MANS = $(MAN1S) $(MAN5S)
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@@ -633,6 +633,13 @@ gcore.1: $(GDB_DOC_FILES)
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mv -f $@.T$$$$ $@) || (rm -f $@.T$$$$ && exit 1)
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rm -f gcore.pod
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+gdb-add-index.1: $(GDB_DOC_FILES)
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+ touch $@
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+ -$(TEXI2POD) $(MANCONF) -Dgdb-add-index < $(srcdir)/gdb.texinfo > gdb-add-index.pod
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+ -($(POD2MAN1) gdb-add-index.pod | sed -e '/^.if n .na/d' > $@.T$$$$ && \
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+ mv -f $@.T$$$$ $@) || (rm -f $@.T$$$$ && exit 1)
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+ rm -f gdb-add-index.pod
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+
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gdbinit.5: $(GDB_DOC_FILES)
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touch $@
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-$(TEXI2POD) $(MANCONF) -Dgdbinit < $(srcdir)/gdb.texinfo > gdbinit.pod
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diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
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index 2f2cbd3dea..7b99ae1551 100644
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--- a/gdb/doc/gdb.texinfo
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+++ b/gdb/doc/gdb.texinfo
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@@ -19796,6 +19796,14 @@ There are currently some limitation on indices. They only work when
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for DWARF debugging information, not stabs. And, they do not
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currently work for programs using Ada.
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+@value{GDBN} comes with a program, @command{gdb-add-index}, which can
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+be used to add the index to a symbol file. It takes the symbol file
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+as its only argument:
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+
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+@smallexample
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+$ gdb-add-index symfile
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+@end smallexample
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+
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@node Symbol Errors
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@section Errors Reading Symbol Files
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@@ -42759,6 +42767,7 @@ switch (die->tag)
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* gdbserver man:: Remote Server for the GNU Debugger man page
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* gcore man:: Generate a core file of a running program
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* gdbinit man:: gdbinit scripts
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+* gdb-add-index man:: Add index files to speed up GDB
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@end menu
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@node gdb man
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@@ -43435,6 +43444,54 @@ Richard M. Stallman and Roland H. Pesch, July 1991.
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@end ifset
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@c man end
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+@node gdb-add-index man
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+@heading gdb-add-index
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+
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+@c man title gdb-add-index Add index files to speed up GDB
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+
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+@c man begin SYNOPSIS gdb-add-index
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+gdb-add-index @var{filename}
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+@c man end
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+
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+@c man begin DESCRIPTION gdb-add-index
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+When GDB finds a symbol file, it scans the symbols in the file in order
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+to construct an internal symbol table. This lets most GDB operations
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+work quickly--at the cost of a delay early on. For large programs,
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+this delay can be quite lengthy, so GDB provides a way to build an
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+index, which speeds up startup.
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+
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+To determine whether a file contains such an index, use the command
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+@command{readelf -S filename}: the index is stored in a section named
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+@code{.gdb_index}. Note that the index is never generated for files that do
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+not contain DWARF debug information (sections named @code{.debug_*}).
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+
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+See more in
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+@ifset man
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+the @value{GDBN} manual in node @code{Index Files}
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+-- shell command @code{info -f gdb -n 'Index Files'}.
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+@end ifset
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+@ifclear man
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+@ref{Index Files}.
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+@end ifclear
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+@c man end
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+
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+@c man begin SEEALSO gdb-add-index
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+@ifset man
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+The full documentation for @value{GDBN} is maintained as a Texinfo manual.
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+If the @code{info} and @code{gdb} programs and @value{GDBN}'s Texinfo
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+documentation are properly installed at your site, the command
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+
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+@smallexample
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+info gdb
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+@end smallexample
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+
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+should give you access to the complete manual.
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+
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+@cite{Using GDB: A Guide to the GNU Source-Level Debugger},
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+Richard M. Stallman and Roland H. Pesch, July 1991.
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+@end ifset
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+@c man end
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+
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@include gpl.texi
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@node GNU Free Documentation License
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--
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2.14.3
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