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969912f7 JR |
1 | http://sourceware.org/ml/gdb-patches/2010-07/msg00184.html |
2 | Subject: Re: [0/4] RFC: add DWARF index support | |
3 | ||
4 | Jan Kratochvil: Fixed $d -> $dir. | |
5 | Jan Kratochvil: Remove /dev/null redirection. | |
6 | ||
7 | >>>>> "Tom" == Tom Tromey <tromey@redhat.com> writes: | |
8 | ||
9 | Tom> This patch series adds support for a DWARF index to gdb. | |
10 | ||
11 | Roland suggested we wrap up the index-creation code into a helper | |
12 | script. | |
13 | ||
14 | I'm not sure if this is something people would want in gdb proper, but I | |
15 | figured I would send it here just in case. | |
16 | ||
17 | Tom | |
18 | ||
19 | 2010-07-09 Tom Tromey <tromey@redhat.com> | |
20 | ||
21 | * Makefile.in (install-only): Install gdb-add-index. | |
22 | * gdb-add-index: New file. | |
23 | ||
24 | 2010-07-09 Tom Tromey <tromey@redhat.com> | |
25 | ||
26 | * gdb.texinfo (Index Files): Mention gdb-add-index. | |
27 | ||
28 | >From 30714fe719e61baea03d0dc5793eb0d564faebb7 Mon Sep 17 00:00:00 2001 | |
29 | From: Tom Tromey <tromey@redhat.com> | |
30 | Date: Fri, 9 Jul 2010 11:17:54 -0600 | |
31 | Subject: [PATCH 4/4] add gdb-add-index | |
32 | Subject: [PATCH 4/4] add gdb-add-index | |
33 | ||
34 | --- | |
35 | gdb/ChangeLog | 5 +++++ | |
36 | gdb/Makefile.in | 11 ++++++++++- | |
37 | gdb/doc/ChangeLog | 4 ++++ | |
38 | gdb/doc/gdb.texinfo | 8 ++++++++ | |
39 | gdb/gdb-add-index | 30 ++++++++++++++++++++++++++++++ | |
40 | 5 files changed, 57 insertions(+), 1 deletions(-) | |
41 | create mode 100755 gdb/gdb-add-index | |
42 | ||
f727df28 | 43 | Index: gdb-7.6.90.20140127/gdb/Makefile.in |
969912f7 | 44 | =================================================================== |
f727df28 KK |
45 | --- gdb-7.6.90.20140127.orig/gdb/Makefile.in 2014-02-06 17:37:54.555975958 +0100 |
46 | +++ gdb-7.6.90.20140127/gdb/Makefile.in 2014-02-06 17:38:52.110038415 +0100 | |
47 | @@ -1093,6 +1093,15 @@ install-only: install-gstack $(CONFIG_IN | |
321e94d6 BS |
48 | $(INSTALL_SCRIPT) gcore \ |
49 | $(DESTDIR)$(bindir)/$$transformed_name; \ | |
50 | fi | |
969912f7 JR |
51 | + transformed_name=`t='$(program_transform_name)'; \ |
52 | + echo gdb-add-index | sed -e "$$t"` ; \ | |
53 | + if test "x$$transformed_name" = x; then \ | |
54 | + transformed_name=gdb-add-index ; \ | |
55 | + else \ | |
56 | + true ; \ | |
57 | + fi ; \ | |
f727df28 KK |
58 | + $(INSTALL_PROGRAM) $(srcdir)/contrib/gdb-add-index.sh \ |
59 | + $(DESTDIR)$(bindir)/$$transformed_name$(EXEEXT) | |
969912f7 JR |
60 | @$(MAKE) DO=install "DODIRS=$(SUBDIRS)" $(FLAGS_TO_PASS) subdir_do |
61 | ||
321e94d6 | 62 | install-strip: |
f727df28 | 63 | Index: gdb-7.6.90.20140127/gdb/doc/gdb.texinfo |
969912f7 | 64 | =================================================================== |
f727df28 KK |
65 | --- gdb-7.6.90.20140127.orig/gdb/doc/gdb.texinfo 2014-02-06 17:37:50.822971940 +0100 |
66 | +++ gdb-7.6.90.20140127/gdb/doc/gdb.texinfo 2014-02-06 17:37:54.565975968 +0100 | |
67 | @@ -17749,6 +17749,14 @@ There are currently some limitation on i | |
969912f7 JR |
68 | for DWARF debugging information, not stabs. And, they do not |
69 | currently work for programs using Ada. | |
70 | ||
71 | +@value{GDBN} comes with a program, @command{gdb-add-index}, which can | |
72 | +be used to add the index to a symbol file. It takes the symbol file | |
73 | +as its only argument: | |
74 | + | |
75 | +@smallexample | |
76 | +$ gdb-add-index symfile | |
77 | +@end smallexample | |
78 | + | |
79 | @node Symbol Errors | |
80 | @section Errors Reading Symbol Files | |
81 | ||
f727df28 KK |
82 | @@ -43878,6 +43886,7 @@ switch (die->tag) |
83 | * gdbserver man:: Remote Server for the GNU Debugger man page | |
84 | * gcore man:: Generate a core file of a running program | |
85 | * gdbinit man:: gdbinit scripts | |
86 | +* gdb-add-index man:: Add index files to speed up GDB | |
87 | @end menu | |
88 | ||
89 | @node gdb man | |
90 | @@ -44530,6 +44539,54 @@ gdb(1), @code{info -f gdb -n Startup} | |
91 | The full documentation for @value{GDBN} is maintained as a Texinfo manual. | |
92 | If the @code{info} and @code{gdb} programs and @value{GDBN}'s Texinfo | |
93 | documentation are properly installed at your site, the command | |
94 | + | |
95 | +@smallexample | |
96 | +info gdb | |
97 | +@end smallexample | |
98 | + | |
99 | +should give you access to the complete manual. | |
100 | + | |
101 | +@cite{Using GDB: A Guide to the GNU Source-Level Debugger}, | |
102 | +Richard M. Stallman and Roland H. Pesch, July 1991. | |
103 | +@end ifset | |
104 | +@c man end | |
969912f7 | 105 | + |
f727df28 KK |
106 | +@node gdb-add-index man |
107 | +@heading gdb-add-index | |
969912f7 | 108 | + |
f727df28 | 109 | +@c man title gdb-add-index Add index files to speed up GDB |
969912f7 | 110 | + |
f727df28 KK |
111 | +@c man begin SYNOPSIS gdb-add-index |
112 | +gdb-add-index @var{filename} | |
113 | +@c man end | |
969912f7 | 114 | + |
f727df28 KK |
115 | +@c man begin DESCRIPTION gdb-add-index |
116 | +When GDB finds a symbol file, it scans the symbols in the file in order | |
117 | +to construct an internal symbol table. This lets most GDB operations | |
118 | +work quickly--at the cost of a delay early on. For large programs, | |
119 | +this delay can be quite lengthy, so GDB provides a way to build an | |
120 | +index, which speeds up startup. | |
969912f7 | 121 | + |
f727df28 KK |
122 | +To determine whether a file contains such an index, use the command |
123 | +@command{readelf -S filename}: the index is stored in a section named | |
124 | +@code{.gdb_index}. Note that the index is never generated for files that do | |
125 | +not contain DWARF debug information (sections named @code{.debug_*}). | |
126 | + | |
127 | +See more in | |
128 | +@ifset man | |
129 | +the @value{GDBN} manual in node @code{Index Files} | |
130 | +-- shell command @code{info -f gdb -n 'Index Files'}. | |
131 | +@end ifset | |
132 | +@ifclear man | |
133 | +@ref{Index Files}. | |
134 | +@end ifclear | |
135 | +@c man end | |
136 | + | |
137 | +@c man begin SEEALSO gdb-add-index | |
138 | +@ifset man | |
139 | +The full documentation for @value{GDBN} is maintained as a Texinfo manual. | |
140 | +If the @code{info} and @code{gdb} programs and @value{GDBN}'s Texinfo | |
141 | +documentation are properly installed at your site, the command | |
142 | ||
143 | @smallexample | |
144 | info gdb | |
145 | Index: gdb-7.6.90.20140127/gdb/doc/Makefile.in | |
146 | =================================================================== | |
147 | --- gdb-7.6.90.20140127.orig/gdb/doc/Makefile.in 2014-02-06 17:37:50.824971942 +0100 | |
148 | +++ gdb-7.6.90.20140127/gdb/doc/Makefile.in 2014-02-06 17:37:54.565975968 +0100 | |
149 | @@ -165,7 +165,7 @@ POD2MAN5 = pod2man --center="GNU Develop | |
150 | --release="gdb-`sed q version.subst`" --section=5 | |
151 | ||
152 | # List of man pages generated from gdb.texi | |
153 | -MAN1S = gdb.1 gdbserver.1 gcore.1 | |
154 | +MAN1S = gdb.1 gdbserver.1 gcore.1 gdb-add-index.1 | |
155 | MAN5S = gdbinit.5 | |
156 | MANS = $(MAN1S) $(MAN5S) | |
157 | ||
158 | @@ -590,6 +590,13 @@ gcore.1: $(GDB_DOC_FILES) | |
159 | mv -f $@.T$$$$ $@) || (rm -f $@.T$$$$ && exit 1) | |
160 | rm -f gcore.pod | |
161 | ||
162 | +gdb-add-index.1: $(GDB_DOC_FILES) | |
163 | + touch $@ | |
164 | + -$(TEXI2POD) $(MANCONF) -Dgdb-add-index < $(srcdir)/gdb.texinfo > gdb-add-index.pod | |
165 | + -($(POD2MAN1) gdb-add-index.pod | sed -e '/^.if n .na/d' > $@.T$$$$ && \ | |
166 | + mv -f $@.T$$$$ $@) || (rm -f $@.T$$$$ && exit 1) | |
167 | + rm -f gdb-add-index.pod | |
969912f7 | 168 | + |
f727df28 KK |
169 | gdbinit.5: $(GDB_DOC_FILES) |
170 | touch $@ | |
171 | -$(TEXI2POD) $(MANCONF) -Dgdbinit < $(srcdir)/gdb.texinfo > gdbinit.pod |