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Pedro Alves 7dfecca0d2 Fix advance/until and multiple locations (PR gdb/26524)
If you do "advance LINESPEC", and LINESPEC expands to more than one
location, GDB just errors out:

   if (sals.size () != 1)
     error (_("Couldn't get information on specified line."));

For example, advancing to a line in an inlined function, inlined three
times:

 (gdb) b 21
 Breakpoint 1 at 0x55555555516f: advance.cc:21. (3 locations)
 (gdb) info breakpoints
 Num     Type           Disp Enb Address            What
 1       breakpoint     keep y   <MULTIPLE>
 1.1                         y   0x000055555555516f in inline_func at advance.cc:21
 1.2                         y   0x000055555555517e in inline_func at advance.cc:21
 1.3                         y   0x000055555555518d in inline_func at advance.cc:21
 (gdb) advance 21
 Couldn't get information on specified line.
 (gdb)

Similar issue with the "until" command, as it shares the
implementation with "advance".

Since, as the comment in gdb.base/advance.exp says, "advance <location>"
is really just syntactic sugar for "tbreak <location>;continue",
fix this by making GDB insert a breakpoint at all the resolved
locations.

A new testcase is included, which exercises both "advance" and
"until", in two different cases expanding to multiple locations:

  - inlined functions
  - C++ overloads

This also exercises the inline frames issue fixed by the previous
patch.

gdb/ChangeLog:

	PR gdb/26524
	* breakpoint.c (until_break_fsm) <location_breakpoint,
	caller_breakpoint>: Delete fields.
	<breakpoints>: New field.
	<until_break_fsm>: Adjust to save a breakpoint vector instead of
	two individual breakpoints.
	(until_break_fsm::should_stop): Loop over breakpoints in the
	breakpoint vector.
	(until_break_fsm::clean_up): Adjust to clear the breakpoints
	vector.
	(until_break_command): Handle location expanding into multiple
	sals.

gdb/testsuite/ChangeLog:

	PR gdb/26523
	PR gdb/26524
	* gdb.base/advance-until-multiple-locations.cc: New.
	* gdb.base/advance-until-multiple-locations.exp: New.
2020-08-22 21:37:26 +01:00
bfd Apply a workaround to mitigate a quadratic performance hit in the linker when writing out secondary reloc sections. 2020-08-20 10:19:47 +01:00
binutils PR26349, FAIL: binutils-all/pr25543 on hpux 2020-08-19 21:25:47 +09:30
config Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
contrib contrib: Update dg-extract-results.* from gcc 2020-05-15 11:41:22 +01:00
cpu Add markers for binutils 2.35 branch 2020-07-04 10:16:22 +01:00
elfcpp Add markers for binutils 2.35 branch 2020-07-04 10:16:22 +01:00
etc
gas Remove --reduce-memory-overheads and --hash-size arguments. 2020-08-20 10:57:52 +09:30
gdb Fix advance/until and multiple locations (PR gdb/26524) 2020-08-22 21:37:26 +01:00
gdbserver gdb: allow specifying multiple filters when running selftests 2020-08-13 07:55:48 -04:00
gdbsupport gdb: allow specifying multiple filters when running selftests 2020-08-13 07:55:48 -04:00
gnulib Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
gold Updated Serbian and Russian translations for various sub-directories 2020-08-12 11:25:38 +01:00
gprof Unify Solaris procfs and largefile handling 2020-07-30 15:41:50 +02:00
include aarch64: Don't assert on long sysreg names 2020-08-10 17:44:02 +01:00
intl
ld PowerPC64 inline PLT call tests 2020-08-16 23:00:34 +09:30
libctf libctf: compilation failure on MinGW due to missing errno values 2020-07-26 16:11:36 -07:00
libdecnumber Run autoreconf -vf throughout 2020-07-29 16:03:55 -04:00
libiberty Sync config, include and libiberty with GCC 2020-06-24 16:52:48 -07:00
opcodes Correct vcmpsq, vcmpuq and xvtlsbb BF field 2020-08-19 08:47:35 +09:30
readline Update readline/README to mention patchlevel 2020-06-30 15:17:07 -06:00
sim [ARM, sim] Fix build failure with -Werror (PR26365) 2020-08-13 10:32:52 -03:00
texinfo
zlib
.cvsignore
.gitattributes
.gitignore Add profiling outputs to .gitignore 2019-12-26 06:54:58 +01:00
ar-lib
ChangeLog PKG_CHECK_MODULES: Check if $pkg_cv_[]$1[]_LIBS works 2020-07-28 03:56:34 -07:00
compile
config-ml.in
config.guess
config.rpath
config.sub
configure config/debuginfod.m4: Use PKG_CHECK_MODULES 2020-07-24 15:16:20 -04:00
configure.ac config/debuginfod.m4: Use PKG_CHECK_MODULES 2020-07-24 15:16:20 -04:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS
Makefile.def
Makefile.in
Makefile.tpl
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
README-maintainer-mode
setup.com 2009-09-01 Tristan Gingold <gingold@adacore.com> 2009-09-01 13:38:26 +00:00
src-release.sh
symlink-tree
test-driver Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ylwrap

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.