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This patch moves gdbserver to the top level.
This patch is as close to a pure move as possible -- gdbserver still
builds its own variant of gnulib and gdbsupport. Changing this will
be done in a separate patch.
[v2] Note that, per Simon's review comment, this patch changes the
tree so that gdbserver is not built for or1k or score. This makes
sense, because there is apparently not actually a gdbserver port here.
[v3] This version of the patch also splits out some configury into a
new file, gdbserver/configure.host, so that the top-level configure
script can simply rely on it in order to decide whether gdbserver
should be built.
[v4] This version adds documentation and removes some unnecessary
top-level dependencies.
[v5] Update docs to mention "make all-gdbserver" and change how
top-level configure decides whether to build gdbserver, switching to a
single, shared script.
Tested by the buildbot.
ChangeLog
2020-02-07 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* src-release.sh (GDB_SUPPORT_DIRS): Add gdbserver.
* gdbserver: New directory, moved from gdb/gdbserver.
* configure.ac (host_tools): Add gdbserver.
Only build gdbserver on certain systems.
* Makefile.in, configure: Rebuild.
* Makefile.def (host_modules, dependencies): Add gdbserver.
* MAINTAINERS: Add gdbserver.
gdb/ChangeLog
2020-02-07 Tom Tromey <tom@tromey.com>
* README: Update gdbserver documentation.
* gdbserver: Move to top level.
* configure.tgt (build_gdbserver): Remove.
* configure.ac: Remove --enable-gdbserver.
* configure: Rebuild.
* Makefile.in (distclean): Don't mention gdbserver.
Change-Id: I826b7565b54604711dc7a11edea0499cd51ff39e
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Fix fallout from commit 42cd72aa0279 ("gdbserver: Make `make TAGS'
actually work") add a missing newline to configure.srv for
`i[34567]86-*-mingw*'.
gdb/gdbserver/
* configure.srv <i[34567]86-*-mingw*>: Fix whitespace damage.
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An error in commit 42cd72aa0279520384327a1f6d0ebd2eb2200645 caused
srv_tgtobj to be overwritten and linux-ppc-low.o to be missed when
linking gdbserver for Linux on PowerPC. This patch fixes the error.
gdb/gdbserver/ChangeLog:
2020-01-29 Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* configure.srv (powerpc*-*-linux*): Use srv_tgtobj in second
assignment instead of srv_linux_obj.
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The address was written as a long value, but long is always a 32bit value
on Windows, which lead to truncated addresses.
The solution was to use paddress instead.
gdb/gdbserver/ChangeLog:
2020-01-28 Hannes Domani <ssbssa@yahoo.de>
* server.c (handle_qxfer_libraries): Write segment-address with
paddress.
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So far this was only possible indirectly when invoked from the gdb directory.
This makes the install-strip target independent from gdb.
2020-01-24 Hannes Domani <ssbssa@yahoo.de>
* Makefile.in (install-strip): New target.
(install_sh, INSTALL_STRIP_PROGRAM, STRIP): New variables.
* aclocal.m4: Regenerate.
* configure: Regenerate.
* configure.ac: Add AM_PROG_INSTALL_STRIP.
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Fix a:
make: *** No rule to make target '.../gdb/gdbserver/arch/arm.c', needed by 'TAGS'. Stop.
error produced by `make TAGS' by making the list of sources processed
match actual file locations and by moving host-specific object files
listed in DEPFILES to nat/ or target/ subdirectories as appropriate so
that the location of the corresponding source file can be mechanically
determined.
gdb/gdbserver/
* Makefile.in (SFILES): Adjust paths to point to real files.
(OBS): Move waitstatus.o to target/waitstatus.o.
(TAGS): Transform paths appropriately.
(%.o): Rename to...
(nat/%.o): ... this pattern rule.
(%.o): Rename to...
(target/%.o): ... this pattern rule.
* configure.srv: Adjust paths throughout to include nat/ prefix
with the revant files.
* configure.ac: Add `nat' and `target' to CONFIG_SRC_SUBDIR.
* configure: Regenerate.
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Complement commit 7ea814144a31 ("Fully disentangle gdb and gdbserver"),
<https://sourceware.org/ml/gdb-patches/2002-02/msg00692.html> (from
2002!), and remove a recipe to include config files in `make TAGS',
which are no longer used by `gdbserver' as from that commit.
gdb/gdbserver/
* Makefile.in (TAGS): Remove config files from the recipe.
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This moves many needed configure checks from gdb and gdbserver into
common.m4. This helps gdbsupport, nat, and target be self-contained.
The result is a bit spaghetti-ish, because gdbsupport uses another m4
file from gdb/. The resulting code is somewhat non-obvious. However,
these problems already exist, so it's not really that much worse than
what is already done.
gdb/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* configure.ac: Move many checks to ../gdbsupport/common.m4.
gdb/gdbserver/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* configure.ac: Remove any checks that were added to common.m4.
* acinclude.m4: Include lib-ld.m4, lib-prefix.m4, and
lib-link.m4.
gdbsupport/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* configure, Makefile.in, aclocal.m4, common.m4, config.in:
Rebuild.
* common.m4 (GDB_AC_COMMON): Move many checks from
gdb/configure.ac.
* acinclude.m4: Include bfd.m4, ptrace.m4.
Change-Id: I931eaa94065df268b30a2f1354390710df89c7f8
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This patch moves the gdbsupport directory to the top level. This is
the next step in the ongoing project to move gdbserver to the top
level.
The bulk of this patch was created by "git mv gdb/gdbsupport gdbsupport".
This patch then adds a build system to gdbsupport and wires it into
the top level. Then it changes gdb to use the top-level build.
gdbserver, on the other hand, is not yet changed. It still does its
own build of gdbsupport.
ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* src-release.sh (GDB_SUPPORT_DIRS): Add gdbsupport.
* MAINTAINERS: Add gdbsupport.
* configure: Rebuild.
* configure.ac (configdirs): Add gdbsupport.
* gdbsupport: New directory, move from gdb/gdbsupport.
* Makefile.def (host_modules, dependencies): Add gnulib.
* Makefile.in: Rebuild.
gdb/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* nat/x86-linux-dregs.c: Include configh.h.
* nat/linux-ptrace.c: Include configh.h.
* nat/linux-btrace.c: Include configh.h.
* defs.h: Include config.h, bfd.h.
* configure.ac: Don't source common.host.
(CONFIG_OBS, CONFIG_SRCS): Remove gdbsupport files.
* configure: Rebuild.
* acinclude.m4: Update path.
* Makefile.in (SUPPORT, LIBSUPPORT, INCSUPPORT): New variables.
(CONFIG_SRC_SUBDIR): Remove gdbsupport.
(INTERNAL_CFLAGS_BASE): Add INCSUPPORT.
(CLIBS): Add LIBSUPPORT.
(CDEPS): Likewise.
(COMMON_SFILES): Remove gdbsupport files.
(HFILES_NO_SRCDIR): Likewise.
(stamp-version): Update path to create-version.sh.
(ALLDEPFILES): Remove gdbsupport files.
gdb/gdbserver/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* server.h: Include config.h.
* gdbreplay.c: Include config.h.
* configure: Rebuild.
* configure.ac: Don't source common.host.
* acinclude.m4: Update path.
* Makefile.in (INCSUPPORT): New variable.
(INCLUDE_CFLAGS): Add INCSUPPORT.
(SFILES): Update paths.
(version-generated.c): Update path to create-version.sh.
(gdbsupport/%-ipa.o, gdbsupport/%.o): Update paths.
gdbsupport/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* common-defs.h: Add GDBSERVER case. Update includes.
* acinclude.m4, aclocal.m4, config.in, configure, configure.ac,
Makefile.am, Makefile.in, README: New files.
* Moved from ../gdb/gdbsupport/
Change-Id: I07632e7798635c1bab389bf885971e584fb4bb78
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I noticed that USE_WIN32API is defined separately by gdbserver and
gdb. However, because it is used by code in gdbsupport, it should be
defined by common.m4. This approach ensures that the code will
continue to work when it is moved to the top level.
gdb/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* gdbsupport/common.m4 (GDB_AC_COMMON): Define WIN32APILIBS and
USE_WIN32API when needed.
* configure.ac (USE_WIN32API): Don't define.
(WIN32LIBS): Use WIN32APILIBS.
* configure: Rebuild.
gdb/gdbserver/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* configure.ac (LIBS): Use WIN32APILIBS.
(USE_WIN32API): Don't define.
* configure: Rebuild.
Change-Id: I40d524d5445ebfb452b36f4d0e102f0b1e1089df
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Simon pointed out that the indentation in common.m4 is off. This
patch fixes the problem.
gdb/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* gdbsupport/common.m4 (GDB_AC_COMMON): Fix indentation.
gdb/gdbserver/ChangeLog
2020-01-14 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
Change-Id: I6a629bd5873cca95ba3e17656f0d0ce583a08361
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The dat files in regformats/i386 were removed a while ago, this rule is
no longer necessary.
gdb/gdbserver/ChangeLog:
* Makefile.in (%-generated.c): Remove rule for files from
regformats/i386.
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Now that most warnings of this kind are fixed, we can enable
-Wmissing-declarations. I say "most", because it is likely that there
are some more in some configurations I am not able to build, but they
should be pretty easy to fix.
gdb/ChangeLog:
* warning.m4: Add -Wmissing-declarations to build_warnings.
* configure: Re-generate.
gdb/gdbserver/ChangeLog:
* configure: Re-generate.
Change-Id: Iae9b59f22eb5dd1965d09f34c5c9e212cddf67ba
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declarations
Fixing the -Wmissing-declarations errors in gdbserver's tracepoint.c is
a bit tricky, because some functions are compiled for both gdbserver, in
which case they should be static, since they are only used in that file,
and for libinproctrace.so, in which case they should be externally
visible, since they need to be looked up. In the case where they are
externally visible, -Wmissing-declarations requires that a declaration
exists (that's the point of the warning).
I've reused the IP_AGENT_EXPORT_FUNC macro to mark the functions as
static when compiled for gdbserver. Some seemingly unnecessary
declarations are added for when compiling libinproctrace.so (thanks to
Tom for the suggestion).
gdb/gdbserver/ChangeLog:
* tracepoint.h (IP_AGENT_EXPORT_FUNC) [!IN_PROCESS_AGENT]:
Define to static.
* tracepoint.c (stop_tracing, flush_trace_buffer,
about_to_request_buffer_space, get_trace_state_variable_value,
set_trace_state_variable_value, gdb_collect): Add declaration.
Change-Id: If9c66151bd00c3b9c5caa27a7c21c5a3a952de2a
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These functions are only used in this file, so should be static.
gdb/gdbserver/ChangeLog:
* linux-x86-low.c (x86_linux_regs_info, amd64_emit_eq_goto,
amd64_emit_ne_goto, amd64_emit_lt_goto, amd64_emit_le_goto,
amd64_emit_gt_goto, amd64_emit_ge_goto, amd64_emit_ge_goto,
i386_emit_eq_goto, i386_emit_ne_goto, i386_emit_lt_goto,
i386_emit_le_goto, i386_emit_gt_goto, i386_emit_ge_goto): Make
static.
Change-Id: I703da41867735aefadd49140e80cd60f6ab9ad39
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So that the definitions of get_inferior_cwd/set_inferior_cwd see their
declarations.
CXX inferiors.o
/home/smarchi/src/binutils-gdb/gdb/gdbserver/inferiors.c: In function ‘const char* get_inferior_cwd()’:
/home/smarchi/src/binutils-gdb/gdb/gdbserver/inferiors.c:228:1: error: no previous declaration for ‘const char* get_inferior_cwd()’ [-Werror=missing-declarations]
get_inferior_cwd ()
^~~~~~~~~~~~~~~~
/home/smarchi/src/binutils-gdb/gdb/gdbserver/inferiors.c: In function ‘void set_inferior_cwd(const char*)’:
/home/smarchi/src/binutils-gdb/gdb/gdbserver/inferiors.c:236:1: error: no previous declaration for ‘void set_inferior_cwd(const char*)’ [-Werror=missing-declarations]
set_inferior_cwd (const char *cwd)
^~~~~~~~~~~~~~~~
gdb/gdbserver/ChangeLog:
* inferiors.c: Include gdbsupport/common-inferior.h.
Change-Id: Iae5ccb3e1dc37ce79f03f08465f603a0411e7af0
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... so that the definition of hostio_last_error_from_errno in hostio-errno.c
sees the declaration in hostio.h.
Fix this error:
CXX hostio-errno.o
/home/smarchi/src/binutils-gdb/gdb/gdbserver/hostio-errno.c: In function ‘void hostio_last_error_from_errno(char*)’:
/home/smarchi/src/binutils-gdb/gdb/gdbserver/hostio-errno.c:28:1: error: no previous declaration for ‘void hostio_last_error_from_errno(char*)’ [-Werror=missing-declarations]
hostio_last_error_from_errno (char *buf)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
gdb/gdbserver/ChangeLog:
* hostio-errno.c: Include hostio.h.
Change-Id: I056308fd4ce12810d0a1b826c423bd0c7eeb8944
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The intent of the rules modified by this patch is that the *-generated.c
files generated by regdat.sh are re-generated in the event that
regdat.sh is modified. However, if I build, touch regdat.sh, and build
again, the files are not re-generated during the second build.
This is because regdat.sh is specified as an order-only dependency [1],
after the pipe. Make therefore only ensures that regdat.sh exists
before generating the target file, it doesn't check the timestamp of
regdat.sh.
This patch changes it to be a regular prerequisite.
The rules use the $< variable, which is substituted by the first
prerequisite only, so the command lines won't change.
[1] https://www.gnu.org/software/make/manual/html_node/Prerequisite-Types.html
gdb/gdbserver/ChangeLog:
* Makefile.in (%-generated.c): Make $(regdat_sh) a regular
prerequisite.
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When building with -Wmissing-declarations, I get:
CXX linux-arm-tdesc.o
/binutils-gdb/gdb/gdbserver/linux-arm-tdesc.c:29:1: error: no previous declaration for 'const target_desc* arm_linux_read_description(arm_fp_type)' [-Werror=missing-declarations]
29 | arm_linux_read_description (arm_fp_type fp_type)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
/binutils-gdb/gdb/gdbserver/linux-arm-tdesc.c:49:1: error: no previous declaration for 'arm_fp_type arm_linux_get_tdesc_fp_type(const target_desc*)' [-Werror=missing-declarations]
49 | arm_linux_get_tdesc_fp_type (const target_desc *tdesc)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
Include linux-arm-tdesc.h in linux-arm-tdesc.c to fix it. And because
linux-arm-tdesc.h uses the arm_fp_type, it should include arch/arm.h as
well.
gdb/gdbserver/ChangeLog:
* linux-arm-tdesc.c: Include linux-arm-tdesc.h.
* linux-arm-tdesc.h: Include arch/arm.h.
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This function is only used in this file, so make it static. It fixes
this error, when building with -Wmissing-declarations:
CXX linux-aarch64-low.o
/home/simark/src/binutils-gdb/gdb/gdbserver/linux-aarch64-low.c:2642:1: error: no previous declaration for 'void aarch64_write_goto_address(CORE_ADDR, CORE_ADDR, int)' [-Werror=missing-declarations]
aarch64_write_goto_address (CORE_ADDR from, CORE_ADDR to, int size)
^~~~~~~~~~~~~~~~~~~~~~~~~~
gdb/gdbserver/ChangeLog:
* linux-aarch64-low.c (aarch64_write_goto_address): Make static.
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When building gdbserver for an aarch64 host with -Wmissing-declarations,
I see:
CXX linux-aarch32-tdesc.o
/home/simark/src/binutils-gdb/gdb/gdbserver/linux-aarch32-tdesc.c:28:1: error: no previous declaration for 'const target_desc* aarch32_linux_read_description()' [-Werror=missing-declarations]
aarch32_linux_read_description ()
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/simark/src/binutils-gdb/gdb/gdbserver/linux-aarch32-tdesc.c:43:1: error: no previous declaration for 'bool is_aarch32_linux_description(const target_desc*)' [-Werror=missing-declarations]
is_aarch32_linux_description (const target_desc *tdesc)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
CXX linux-aarch64-tdesc.o
/home/simark/src/binutils-gdb/gdb/gdbserver/linux-aarch64-tdesc.c:32:1: error: no previous declaration for 'const target_desc* aarch64_linux_read_description(uint64_t, bool)' [-Werror=missing-declarations]
aarch64_linux_read_description (uint64_t vq, bool pauth_p)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix it by including linux-aarch32-tdesc.h in linux-aarch32-tdesc.c and
linux-aarch64-tdesc.h in linux-aarch64-tdesc.c.
gdb/gdbserver/ChangeLog:
* linux-aarch32-tdesc.c: Include linux-aarch32-tdesc.h.
* linux-aarch64-tdesc.c: Include linux-aarch64-tdesc.h.
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This commit adds multi-target support to GDB. What this means is that
with this commit, GDB can now be connected to different targets at the
same time. E.g., you can debug a live native process and a core dump
at the same time, connect to multiple gdbservers, etc.
Actually, the word "target" is overloaded in gdb. We already have a
target stack, with pushes several target_ops instances on top of one
another. We also have "info target" already, which means something
completely different to what this patch does.
So from here on, I'll be using the "target connections" term, to mean
an open process_stratum target, pushed on a target stack. This patch
makes gdb have multiple target stacks, and multiple process_stratum
targets open simultaneously. The user-visible changes / commands will
also use this terminology, but of course it's all open to debate.
User-interface-wise, not that much changes. The main difference is
that each inferior may have its own target connection.
A target connection (e.g., a target extended-remote connection) may
support debugging multiple processes, just as before.
Say you're debugging against gdbserver in extended-remote mode, and
you do "add-inferior" to prepare to spawn a new process, like:
(gdb) target extended-remote :9999
...
(gdb) start
...
(gdb) add-inferior
Added inferior 2
(gdb) inferior 2
[Switching to inferior 2 [<null>] (<noexec>)]
(gdb) file a.out
...
(gdb) start
...
At this point, you have two inferiors connected to the same gdbserver.
With this commit, GDB will maintain a target stack per inferior,
instead of a global target stack.
To preserve the behavior above, by default, "add-inferior" makes the
new inferior inherit a copy of the target stack of the current
inferior. Same across a fork - the child inherits a copy of the
target stack of the parent. While the target stacks are copied, the
targets themselves are not. Instead, target_ops is made a
refcounted_object, which means that target_ops instances are
refcounted, which each inferior counting for a reference.
What if you want to create an inferior and connect it to some _other_
target? For that, this commit introduces a new "add-inferior
-no-connection" option that makes the new inferior not share the
current inferior's target. So you could do:
(gdb) target extended-remote :9999
Remote debugging using :9999
...
(gdb) add-inferior -no-connection
[New inferior 2]
Added inferior 2
(gdb) inferior 2
[Switching to inferior 2 [<null>] (<noexec>)]
(gdb) info inferiors
Num Description Executable
1 process 18401 target:/home/pedro/tmp/main
* 2 <null>
(gdb) tar extended-remote :10000
Remote debugging using :10000
...
(gdb) info inferiors
Num Description Executable
1 process 18401 target:/home/pedro/tmp/main
* 2 process 18450 target:/home/pedro/tmp/main
(gdb)
A following patch will extended "info inferiors" to include a column
indicating which connection an inferior is bound to, along with a
couple other UI tweaks.
Other than that, debugging is the same as before. Users interact with
inferiors and threads as before. The only difference is that
inferiors may be bound to processes running in different machines.
That's pretty much all there is to it in terms of noticeable UI
changes.
On to implementation.
Since we can be connected to different systems at the same time, a
ptid_t is no longer a unique identifier. Instead a thread can be
identified by a pair of ptid_t and 'process_stratum_target *', the
later being the instance of the process_stratum target that owns the
process/thread. Note that process_stratum_target inherits from
target_ops, and all process_stratum targets inherit from
process_stratum_target. In earlier patches, many places in gdb were
converted to refer to threads by thread_info pointer instead of
ptid_t, but there are still places in gdb where we start with a
pid/tid and need to find the corresponding inferior or thread_info
objects. So you'll see in the patch many places adding a
process_stratum_target parameter to functions that used to take only a
ptid_t.
Since each inferior has its own target stack now, we can always find
the process_stratum target for an inferior. That is done via a
inf->process_target() convenience method.
Since each inferior has its own target stack, we need to handle the
"beneath" calls when servicing target calls. The solution I settled
with is just to make sure to switch the current inferior to the
inferior you want before making a target call. Not relying on global
context is just not feasible in current GDB. Fortunately, there
aren't that many places that need to do that, because generally most
code that calls target methods already has the current context
pointing to the right inferior/thread. Note, to emphasize -- there's
no method to "switch to this target stack". Instead, you switch the
current inferior, and that implicitly switches the target stack.
In some spots, we need to iterate over all inferiors so that we reach
all target stacks.
Native targets are still singletons. There's always only a single
instance of such targets.
Remote targets however, we'll have one instance per remote connection.
The exec target is still a singleton. There's only one instance. I
did not see the point of instanciating more than one exec_target
object.
After vfork, we need to make sure to push the exec target on the new
inferior. See exec_on_vfork.
For type safety, functions that need a {target, ptid} pair to identify
a thread, take a process_stratum_target pointer for target parameter
instead of target_ops *. Some shared code in gdb/nat/ also need to
gain a target pointer parameter. This poses an issue, since gdbserver
doesn't have process_stratum_target, only target_ops. To fix this,
this commit renames gdbserver's target_ops to process_stratum_target.
I think this makes sense. There's no concept of target stack in
gdbserver, and gdbserver's target_ops really implements a
process_stratum-like target.
The thread and inferior iterator functions also gain
process_stratum_target parameters. These are used to be able to
iterate over threads and inferiors of a given target. Following usual
conventions, if the target pointer is null, then we iterate over
threads and inferiors of all targets.
I tried converting "add-inferior" to the gdb::option framework, as a
preparatory patch, but that stumbled on the fact that gdb::option does
not support file options yet, for "add-inferior -exec". I have a WIP
patchset that adds that, but it's not a trivial patch, mainly due to
need to integrate readline's filename completion, so I deferred that
to some other time.
In infrun.c/infcmd.c, the main change is that we need to poll events
out of all targets. See do_target_wait. Right after collecting an
event, we switch the current inferior to an inferior bound to the
target that reported the event, so that target methods can be used
while handling the event. This makes most of the code transparent to
multi-targets. See fetch_inferior_event.
infrun.c:stop_all_threads is interesting -- in this function we need
to stop all threads of all targets. What the function does is send an
asynchronous stop request to all threads, and then synchronously waits
for events, with target_wait, rinse repeat, until all it finds are
stopped threads. Now that we have multiple targets, it's not
efficient to synchronously block in target_wait waiting for events out
of one target. Instead, we implement a mini event loop, with
interruptible_select, select'ing on one file descriptor per target.
For this to work, we need to be able to ask the target for a waitable
file descriptor. Such file descriptors already exist, they are the
descriptors registered in the main event loop with add_file_handler,
inside the target_async implementations. This commit adds a new
target_async_wait_fd target method that just returns the file
descriptor in question. See wait_one / stop_all_threads in infrun.c.
The 'threads_executing' global is made a per-target variable. Since
it is only relevant to process_stratum_target targets, this is where
it is put, instead of in target_ops.
You'll notice that remote.c includes some FIXME notes. These refer to
the fact that the global arrays that hold data for the remote packets
supported are still globals. For example, if we connect to two
different servers/stubs, then each might support different remote
protocol features. They might even be different architectures, like
e.g., one ARM baremetal stub, and a x86 gdbserver, to debug a
host/controller scenario as a single program. That isn't going to
work correctly today, because of said globals. I'm leaving fixing
that for another pass, since it does not appear to be trivial, and I'd
rather land the base work first. It's already useful to be able to
debug multiple instances of the same server (e.g., a distributed
cluster, where you have full control over the servers installed), so I
think as is it's already reasonable incremental progress.
Current limitations:
- You can only resume more that one target at the same time if all
targets support asynchronous debugging, and support non-stop mode.
It should be possible to support mixed all-stop + non-stop
backends, but that is left for another time. This means that
currently in order to do multi-target with gdbserver you need to
issue "maint set target-non-stop on". I would like to make that
mode be the default, but we're not there yet. Note that I'm
talking about how the target backend works, only. User-visible
all-stop mode works just fine.
- As explained above, connecting to different remote servers at the
same time is likely to produce bad results if they don't support the
exact set of RSP features.
FreeBSD updates courtesy of John Baldwin.
gdb/ChangeLog:
2020-01-10 Pedro Alves <palves@redhat.com>
John Baldwin <jhb@FreeBSD.org>
* aarch64-linux-nat.c
(aarch64_linux_nat_target::thread_architecture): Adjust.
* ada-tasks.c (print_ada_task_info): Adjust find_thread_ptid call.
(task_command_1): Likewise.
* aix-thread.c (sync_threadlists, aix_thread_target::resume)
(aix_thread_target::wait, aix_thread_target::fetch_registers)
(aix_thread_target::store_registers)
(aix_thread_target::thread_alive): Adjust.
* amd64-fbsd-tdep.c: Include "inferior.h".
(amd64fbsd_get_thread_local_address): Pass down target.
* amd64-linux-nat.c (ps_get_thread_area): Use ps_prochandle
thread's gdbarch instead of target_gdbarch.
* break-catch-sig.c (signal_catchpoint_print_it): Adjust call to
get_last_target_status.
* break-catch-syscall.c (print_it_catch_syscall): Likewise.
* breakpoint.c (breakpoints_should_be_inserted_now): Consider all
inferiors.
(update_inserted_breakpoint_locations): Skip if inferiors with no
execution.
(update_global_location_list): When handling moribund locations,
find representative inferior for location's pspace, and use thread
count of its process_stratum target.
* bsd-kvm.c (bsd_kvm_target_open): Pass target down.
* bsd-uthread.c (bsd_uthread_target::wait): Use
as_process_stratum_target and adjust thread_change_ptid and
add_thread calls.
(bsd_uthread_target::update_thread_list): Use
as_process_stratum_target and adjust find_thread_ptid,
thread_change_ptid and add_thread calls.
* btrace.c (maint_btrace_packet_history_cmd): Adjust
find_thread_ptid call.
* corelow.c (add_to_thread_list): Adjust add_thread call.
(core_target_open): Adjust add_thread_silent and thread_count
calls.
(core_target::pid_to_str): Adjust find_inferior_ptid call.
* ctf.c (ctf_target_open): Adjust add_thread_silent call.
* event-top.c (async_disconnect): Pop targets from all inferiors.
* exec.c (add_target_sections): Push exec target on all inferiors
sharing the program space.
(remove_target_sections): Remove the exec target from all
inferiors sharing the program space.
(exec_on_vfork): New.
* exec.h (exec_on_vfork): Declare.
* fbsd-nat.c (fbsd_add_threads): Add fbsd_nat_target parameter.
Pass it down.
(fbsd_nat_target::update_thread_list): Adjust.
(fbsd_nat_target::resume): Adjust.
(fbsd_handle_debug_trap): Add fbsd_nat_target parameter. Pass it
down.
(fbsd_nat_target::wait, fbsd_nat_target::post_attach): Adjust.
* fbsd-tdep.c (fbsd_corefile_thread): Adjust
get_thread_arch_regcache call.
* fork-child.c (gdb_startup_inferior): Pass target down to
startup_inferior and set_executing.
* gdbthread.h (struct process_stratum_target): Forward declare.
(add_thread, add_thread_silent, add_thread_with_info)
(in_thread_list): Add process_stratum_target parameter.
(find_thread_ptid(inferior*, ptid_t)): New overload.
(find_thread_ptid, thread_change_ptid): Add process_stratum_target
parameter.
(all_threads()): Delete overload.
(all_threads, all_non_exited_threads): Add process_stratum_target
parameter.
(all_threads_safe): Use brace initialization.
(thread_count): Add process_stratum_target parameter.
(set_resumed, set_running, set_stop_requested, set_executing)
(threads_are_executing, finish_thread_state): Add
process_stratum_target parameter.
(switch_to_thread): Use is_current_thread.
* i386-fbsd-tdep.c: Include "inferior.h".
(i386fbsd_get_thread_local_address): Pass down target.
* i386-linux-nat.c (i386_linux_nat_target::low_resume): Adjust.
* inf-child.c (inf_child_target::maybe_unpush_target): Remove
have_inferiors check.
* inf-ptrace.c (inf_ptrace_target::create_inferior)
(inf_ptrace_target::attach): Adjust.
* infcall.c (run_inferior_call): Adjust.
* infcmd.c (run_command_1): Pass target to
scoped_finish_thread_state.
(proceed_thread_callback): Skip inferiors with no execution.
(continue_command): Rename 'all_threads' local to avoid hiding
'all_threads' function. Adjust get_last_target_status call.
(prepare_one_step): Adjust set_running call.
(signal_command): Use user_visible_resume_target. Compare thread
pointers instead of inferior_ptid.
(info_program_command): Adjust to pass down target.
(attach_command): Mark target's 'thread_executing' flag.
(stop_current_target_threads_ns): New, factored out from ...
(interrupt_target_1): ... this. Switch inferior before making
target calls.
* inferior-iter.h
(struct all_inferiors_iterator, struct all_inferiors_range)
(struct all_inferiors_safe_range)
(struct all_non_exited_inferiors_range): Filter on
process_stratum_target too. Remove explicit.
* inferior.c (inferior::inferior): Push dummy target on target
stack.
(find_inferior_pid, find_inferior_ptid, number_of_live_inferiors):
Add process_stratum_target parameter, and pass it down.
(have_live_inferiors): Adjust.
(switch_to_inferior_and_push_target): New.
(add_inferior_command, clone_inferior_command): Handle
"-no-connection" parameter. Use
switch_to_inferior_and_push_target.
(_initialize_inferior): Mention "-no-connection" option in
the help of "add-inferior" and "clone-inferior" commands.
* inferior.h: Include "process-stratum-target.h".
(interrupt_target_1): Use bool.
(struct inferior) <push_target, unpush_target, target_is_pushed,
find_target_beneath, top_target, process_target, target_at,
m_stack>: New.
(discard_all_inferiors): Delete.
(find_inferior_pid, find_inferior_ptid, number_of_live_inferiors)
(all_inferiors, all_non_exited_inferiors): Add
process_stratum_target parameter.
* infrun.c: Include "gdb_select.h" and <unordered_map>.
(target_last_proc_target): New global.
(follow_fork_inferior): Push target on new inferior. Pass target
to add_thread_silent. Call exec_on_vfork. Handle target's
reference count.
(follow_fork): Adjust get_last_target_status call. Also consider
target.
(follow_exec): Push target on new inferior.
(struct execution_control_state) <target>: New field.
(user_visible_resume_target): New.
(do_target_resume): Call target_async.
(resume_1): Set target's threads_executing flag. Consider resume
target.
(commit_resume_all_targets): New.
(proceed): Also consider resume target. Skip threads of inferiors
with no execution. Commit resumtion in all targets.
(start_remote): Pass current inferior to wait_for_inferior.
(infrun_thread_stop_requested): Consider target as well. Pass
thread_info pointer to clear_inline_frame_state instead of ptid.
(infrun_thread_thread_exit): Consider target as well.
(random_pending_event_thread): New inferior parameter. Use it.
(do_target_wait): Rename to ...
(do_target_wait_1): ... this. Add inferior parameter, and pass it
down.
(threads_are_resumed_pending_p, do_target_wait): New.
(prepare_for_detach): Adjust calls.
(wait_for_inferior): New inferior parameter. Handle it. Use
do_target_wait_1 instead of do_target_wait.
(fetch_inferior_event): Adjust. Switch to representative
inferior. Pass target down.
(set_last_target_status): Add process_stratum_target parameter.
Save target in global.
(get_last_target_status): Add process_stratum_target parameter and
handle it.
(nullify_last_target_wait_ptid): Clear 'target_last_proc_target'.
(context_switch): Check inferior_ptid == null_ptid before calling
inferior_thread().
(get_inferior_stop_soon): Pass down target.
(wait_one): Rename to ...
(poll_one_curr_target): ... this.
(struct wait_one_event): New.
(wait_one): New.
(stop_all_threads): Adjust.
(handle_no_resumed, handle_inferior_event): Adjust to consider the
event's target.
(switch_back_to_stepped_thread): Also consider target.
(print_stop_event): Update.
(normal_stop): Update. Also consider the resume target.
* infrun.h (wait_for_inferior): Remove declaration.
(user_visible_resume_target): New declaration.
(get_last_target_status, set_last_target_status): New
process_stratum_target parameter.
* inline-frame.c (clear_inline_frame_state(ptid_t)): Add
process_stratum_target parameter, and use it.
(clear_inline_frame_state (thread_info*)): New.
* inline-frame.c (clear_inline_frame_state(ptid_t)): Add
process_stratum_target parameter.
(clear_inline_frame_state (thread_info*)): Declare.
* linux-fork.c (delete_checkpoint_command): Pass target down to
find_thread_ptid.
(checkpoint_command): Adjust.
* linux-nat.c (linux_nat_target::follow_fork): Switch to thread
instead of just tweaking inferior_ptid.
(linux_nat_switch_fork): Pass target down to thread_change_ptid.
(exit_lwp): Pass target down to find_thread_ptid.
(attach_proc_task_lwp_callback): Pass target down to
add_thread/set_running/set_executing.
(linux_nat_target::attach): Pass target down to
thread_change_ptid.
(get_detach_signal): Pass target down to find_thread_ptid.
Consider last target status's target.
(linux_resume_one_lwp_throw, resume_lwp)
(linux_handle_syscall_trap, linux_handle_extended_wait, wait_lwp)
(stop_wait_callback, save_stop_reason, linux_nat_filter_event)
(linux_nat_wait_1, resume_stopped_resumed_lwps): Pass target down.
(linux_nat_target::async_wait_fd): New.
(linux_nat_stop_lwp, linux_nat_target::thread_address_space): Pass
target down.
* linux-nat.h (linux_nat_target::async_wait_fd): Declare.
* linux-tdep.c (get_thread_arch_regcache): Pass target down.
* linux-thread-db.c (struct thread_db_info::process_target): New
field.
(add_thread_db_info): Save target.
(get_thread_db_info): New process_stratum_target parameter. Also
match target.
(delete_thread_db_info): New process_stratum_target parameter.
Also match target.
(thread_from_lwp): Adjust to pass down target.
(thread_db_notice_clone): Pass down target.
(check_thread_db_callback): Pass down target.
(try_thread_db_load_1): Always push the thread_db target.
(try_thread_db_load, record_thread): Pass target down.
(thread_db_target::detach): Pass target down. Always unpush the
thread_db target.
(thread_db_target::wait, thread_db_target::mourn_inferior): Pass
target down. Always unpush the thread_db target.
(find_new_threads_callback, thread_db_find_new_threads_2)
(thread_db_target::update_thread_list): Pass target down.
(thread_db_target::pid_to_str): Pass current inferior down.
(thread_db_target::get_thread_local_address): Pass target down.
(thread_db_target::resume, maintenance_check_libthread_db): Pass
target down.
* nto-procfs.c (nto_procfs_target::update_thread_list): Adjust.
* procfs.c (procfs_target::procfs_init_inferior): Declare.
(proc_set_current_signal, do_attach, procfs_target::wait): Adjust.
(procfs_init_inferior): Rename to ...
(procfs_target::procfs_init_inferior): ... this and adjust.
(procfs_target::create_inferior, procfs_notice_thread)
(procfs_do_thread_registers): Adjust.
* ppc-fbsd-tdep.c: Include "inferior.h".
(ppcfbsd_get_thread_local_address): Pass down target.
* proc-service.c (ps_xfer_memory): Switch current inferior and
program space as well.
(get_ps_regcache): Pass target down.
* process-stratum-target.c
(process_stratum_target::thread_address_space)
(process_stratum_target::thread_architecture): Pass target down.
* process-stratum-target.h
(process_stratum_target::threads_executing): New field.
(as_process_stratum_target): New.
* ravenscar-thread.c
(ravenscar_thread_target::update_inferior_ptid): Pass target down.
(ravenscar_thread_target::wait, ravenscar_add_thread): Pass target
down.
* record-btrace.c (record_btrace_target::info_record): Adjust.
(record_btrace_target::record_method)
(record_btrace_target::record_is_replaying)
(record_btrace_target::fetch_registers)
(get_thread_current_frame_id, record_btrace_target::resume)
(record_btrace_target::wait, record_btrace_target::stop): Pass
target down.
* record-full.c (record_full_wait_1): Switch to event thread.
Pass target down.
* regcache.c (regcache::regcache)
(get_thread_arch_aspace_regcache, get_thread_arch_regcache): Add
process_stratum_target parameter and handle it.
(current_thread_target): New global.
(get_thread_regcache): Add process_stratum_target parameter and
handle it. Switch inferior before calling target method.
(get_thread_regcache): Pass target down.
(get_thread_regcache_for_ptid): Pass target down.
(registers_changed_ptid): Add process_stratum_target parameter and
handle it.
(registers_changed_thread, registers_changed): Pass target down.
(test_get_thread_arch_aspace_regcache): New.
(current_regcache_test): Define a couple local test_target_ops
instances and use them for testing.
(readwrite_regcache): Pass process_stratum_target parameter.
(cooked_read_test, cooked_write_test): Pass mock_target down.
* regcache.h (get_thread_regcache, get_thread_arch_regcache)
(get_thread_arch_aspace_regcache): Add process_stratum_target
parameter.
(regcache::target): New method.
(regcache::regcache, regcache::get_thread_arch_aspace_regcache)
(regcache::registers_changed_ptid): Add process_stratum_target
parameter.
(regcache::m_target): New field.
(registers_changed_ptid): Add process_stratum_target parameter.
* remote.c (remote_state::supports_vCont_probed): New field.
(remote_target::async_wait_fd): New method.
(remote_unpush_and_throw): Add remote_target parameter.
(get_current_remote_target): Adjust.
(remote_target::remote_add_inferior): Push target.
(remote_target::remote_add_thread)
(remote_target::remote_notice_new_inferior)
(get_remote_thread_info): Pass target down.
(remote_target::update_thread_list): Skip threads of inferiors
bound to other targets. (remote_target::close): Don't discard
inferiors. (remote_target::add_current_inferior_and_thread)
(remote_target::process_initial_stop_replies)
(remote_target::start_remote)
(remote_target::remote_serial_quit_handler): Pass down target.
(remote_target::remote_unpush_target): New remote_target
parameter. Unpush the target from all inferiors.
(remote_target::remote_unpush_and_throw): New remote_target
parameter. Pass it down.
(remote_target::open_1): Check whether the current inferior has
execution instead of checking whether any inferior is live. Pass
target down.
(remote_target::remote_detach_1): Pass down target. Use
remote_unpush_target.
(extended_remote_target::attach): Pass down target.
(remote_target::remote_vcont_probe): Set supports_vCont_probed.
(remote_target::append_resumption): Pass down target.
(remote_target::append_pending_thread_resumptions)
(remote_target::remote_resume_with_hc, remote_target::resume)
(remote_target::commit_resume): Pass down target.
(remote_target::remote_stop_ns): Check supports_vCont_probed.
(remote_target::interrupt_query)
(remote_target::remove_new_fork_children)
(remote_target::check_pending_events_prevent_wildcard_vcont)
(remote_target::remote_parse_stop_reply)
(remote_target::process_stop_reply): Pass down target.
(first_remote_resumed_thread): New remote_target parameter. Pass
it down.
(remote_target::wait_as): Pass down target.
(unpush_and_perror): New remote_target parameter. Pass it down.
(remote_target::readchar, remote_target::remote_serial_write)
(remote_target::getpkt_or_notif_sane_1)
(remote_target::kill_new_fork_children, remote_target::kill): Pass
down target.
(remote_target::mourn_inferior): Pass down target. Use
remote_unpush_target.
(remote_target::core_of_thread)
(remote_target::remote_btrace_maybe_reopen): Pass down target.
(remote_target::pid_to_exec_file)
(remote_target::thread_handle_to_thread_info): Pass down target.
(remote_target::async_wait_fd): New.
* riscv-fbsd-tdep.c: Include "inferior.h".
(riscv_fbsd_get_thread_local_address): Pass down target.
* sol2-tdep.c (sol2_core_pid_to_str): Pass down target.
* sol-thread.c (sol_thread_target::wait, ps_lgetregs, ps_lsetregs)
(ps_lgetfpregs, ps_lsetfpregs, sol_update_thread_list_callback):
Adjust.
* solib-spu.c (spu_skip_standalone_loader): Pass down target.
* solib-svr4.c (enable_break): Pass down target.
* spu-multiarch.c (parse_spufs_run): Pass down target.
* spu-tdep.c (spu2ppu_sniffer): Pass down target.
* target-delegates.c: Regenerate.
* target.c (g_target_stack): Delete.
(current_top_target): Return the current inferior's top target.
(target_has_execution_1): Refer to the passed-in inferior's top
target.
(target_supports_terminal_ours): Check whether the initial
inferior was already created.
(decref_target): New.
(target_stack::push): Incref/decref the target.
(push_target, push_target, unpush_target): Adjust.
(target_stack::unpush): Defref target.
(target_is_pushed): Return bool. Adjust to refer to the current
inferior's target stack.
(dispose_inferior): Delete, and inline parts ...
(target_preopen): ... here. Only dispose of the current inferior.
(target_detach): Hold strong target reference while detaching.
Pass target down.
(target_thread_name): Add assertion.
(target_resume): Pass down target.
(target_ops::beneath, find_target_at): Adjust to refer to the
current inferior's target stack.
(get_dummy_target): New.
(target_pass_ctrlc): Pass the Ctrl-C to the first inferior that
has a thread running.
(initialize_targets): Rename to ...
(_initialize_target): ... this.
* target.h: Include "gdbsupport/refcounted-object.h".
(struct target_ops): Inherit refcounted_object.
(target_ops::shortname, target_ops::longname): Make const.
(target_ops::async_wait_fd): New method.
(decref_target): Declare.
(struct target_ops_ref_policy): New.
(target_ops_ref): New typedef.
(get_dummy_target): Declare function.
(target_is_pushed): Return bool.
* thread-iter.c (all_matching_threads_iterator::m_inf_matches)
(all_matching_threads_iterator::all_matching_threads_iterator):
Handle filter target.
* thread-iter.h (struct all_matching_threads_iterator, struct
all_matching_threads_range, class all_non_exited_threads_range):
Filter by target too. Remove explicit.
* thread.c (threads_executing): Delete.
(inferior_thread): Pass down current inferior.
(clear_thread_inferior_resources): Pass down thread pointer
instead of ptid_t.
(add_thread_silent, add_thread_with_info, add_thread): Add
process_stratum_target parameter. Use it for thread and inferior
searches.
(is_current_thread): New.
(thread_info::deletable): Use it.
(find_thread_ptid, thread_count, in_thread_list)
(thread_change_ptid, set_resumed, set_running): New
process_stratum_target parameter. Pass it down.
(set_executing): New process_stratum_target parameter. Pass it
down. Adjust reference to 'threads_executing'.
(threads_are_executing): New process_stratum_target parameter.
Adjust reference to 'threads_executing'.
(set_stop_requested, finish_thread_state): New
process_stratum_target parameter. Pass it down.
(switch_to_thread): Also match inferior.
(switch_to_thread): New process_stratum_target parameter. Pass it
down.
(update_threads_executing): Reimplement.
* top.c (quit_force): Pop targets from all inferior.
(gdb_init): Don't call initialize_targets.
* windows-nat.c (windows_nat_target) <get_windows_debug_event>:
Declare.
(windows_add_thread, windows_delete_thread): Adjust.
(get_windows_debug_event): Rename to ...
(windows_nat_target::get_windows_debug_event): ... this. Adjust.
* tracefile-tfile.c (tfile_target_open): Pass down target.
* gdbsupport/common-gdbthread.h (struct process_stratum_target):
Forward declare.
(switch_to_thread): Add process_stratum_target parameter.
* mi/mi-interp.c (mi_on_resume_1): Add process_stratum_target
parameter. Use it.
(mi_on_resume): Pass target down.
* nat/fork-inferior.c (startup_inferior): Add
process_stratum_target parameter. Pass it down.
* nat/fork-inferior.h (startup_inferior): Add
process_stratum_target parameter.
* python/py-threadevent.c (py_get_event_thread): Pass target down.
gdb/gdbserver/ChangeLog:
2020-01-10 Pedro Alves <palves@redhat.com>
* fork-child.c (post_fork_inferior): Pass target down to
startup_inferior.
* inferiors.c (switch_to_thread): Add process_stratum_target
parameter.
* lynx-low.c (lynx_target_ops): Now a process_stratum_target.
* nto-low.c (nto_target_ops): Now a process_stratum_target.
* linux-low.c (linux_target_ops): Now a process_stratum_target.
* remote-utils.c (prepare_resume_reply): Pass the target to
switch_to_thread.
* target.c (the_target): Now a process_stratum_target.
(done_accessing_memory): Pass the target to switch_to_thread.
(set_target_ops): Ajust to use process_stratum_target.
* target.h (struct target_ops): Rename to ...
(struct process_stratum_target): ... this.
(the_target, set_target_ops): Adjust.
(prepare_to_access_memory): Adjust comment.
* win32-low.c (child_xfer_memory): Adjust to use
process_stratum_target.
(win32_target_ops): Now a process_stratum_target.
|
|
When a Windows program is terminated by a fatal exception, its exit
code is the value of that exception, as defined by the various
EXCEPTION_* symbols in the Windows API headers. This commit emulates
WTERMSIG etc. by translating the fatal exception codes to more-or-less
equivalent Posix signals.
gdb/ChangeLog:
2020-01-06 Eli Zaretskii <eliz@gnu.org>
Pedro Alves <palves@redhat.com>
* Makefile.in (COMMON_SFILES): Add gdbsupport/gdb_wait.c.
* windows-tdep.c: New enumeration of WINDOWS_SIG* signals.
(windows_gdb_signal_to_target): New function, uses the above
enumeration to convert GDB internal signal codes to equivalent
Windows codes.
(windows_init_abi): Call set_gdbarch_gdb_signal_to_target.
* windows-nat.c: Include "gdb_wait.h".
(get_windows_debug_event): Extract the fatal exception from the
exit status and convert to the equivalent Posix signal number.
* cli/cli-cmds.c (exit_status_set_internal_vars): Account for the
possibility that WTERMSIG returns GDB_SIGNAL_UNKNOWN.
* gdbsupport/gdb_wait.c: New file, implements
windows_status_to_termsig.
* gdbsupport/gdb_wait.h (WIFEXITED, WIFSIGNALED, WEXITSTATUS)
(WTERMSIG) [__MINGW32__]: Separate definitions for MinGW.
gdb/gdbserver/ChangeLog:
2020-01-06 Eli Zaretskii <eliz@gnu.org>
Pedro Alves <palves@redhat.com>
* win32-low.c (get_child_debug_event): Extract the fatal exception
from the exit status and convert to the equivalent Posix signal
number.
(win32_wait): Allow TARGET_WAITKIND_SIGNALLED status as well.
* Makefile.in (OBS, SFILES): Add gdb_wait.[co].
|
|
The variable INSTALL_PROGRAM_ENV sets up STRIPPROG for the cross-compiler.
If this is not done, the host 'strip' is used, and fails:
/bin/sh /c/src/repos/binutils-gdb.git/install-sh -c -s gdb.exe \
/gdb/gdb64-git/bin/$transformed_name.exe
strip.exe:C:/gdb/gdb64-git/bin/_inst.33599_: file format not recognized
With this change, it's fine:
STRIPPROG='x86_64-w64-mingw32-strip' \
/bin/sh /c/src/repos/binutils-gdb.git/install-sh -c -s gdb.exe \
/gdb/gdb64-git/bin/$transformed_name.exe
gdb/ChangeLog:
2020-01-01 Hannes Domani <ssbssa@yahoo.de>
* Makefile.in: Use INSTALL_PROGRAM_ENV.
gdb/gdbserver/ChangeLog:
2020-01-01 Hannes Domani <ssbssa@yahoo.de>
* Makefile.in: Use INSTALL_PROGRAM_ENV.
|
|
gdb/ChangeLog:
* top.c (print_gdb_version): Change copyright year to 2020.
gdb/gdbserver/ChangeLog:
* server.c (gdbserver_version): Change copyright year to 2020.
* gdbreplay.c (gdbreplay_version): Likewise.
|
|
This ensures that empty variables and variables with spaces are handled
correctly.
Code was inconsistent on whether the constant string (e.g. yes/no)
should also be quoted; I tried to be consistent with surrounding code.
This fixes the error Eli reported during configure with mingw (though that
was not fatal).
gdb/ChangeLog:
2019-12-19 Christian Biesinger <cbiesinger@google.com>
* configure: Regenerate.
* configure.ac: Quote variable arguments of test.
* gdbsupport/common.m4: Likewise.
gdb/gdbserver/ChangeLog:
2019-12-19 Christian Biesinger <cbiesinger@google.com>
* configure: Regenerate.
* configure.ac: Quote variable arguments of test.
Change-Id: I220e78b52c7db88b9dd058eda604635b03464fac
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|
GNU Make 3.81 is apparently confused when the same
source file is processed by a pattern rule and an
explicit rule at the same time with different output file.
The pattern %.o: ../%.c and alloc-ipa.o: ../alloc.c
both have the source ../alloc.c but two independent
object files alloc.o and alloc-ipa.o, so
while building gdbserver I see the following message:
make[4]: Circular alloc-ipa.o <- ../alloc.c dependency dropped.
CXX alloc-ipa.o
g++: warning: '-x c++' after last input file has no effect
g++: fatal error: no input files
compilation terminated.
In the make debug output I see the pattern is first correct:
alloc-ipa.o: ../alloc.c | config.h build-gnulib-gdbserver/import/string.h
$(IPAGENT_COMPILE) $(WARN_CFLAGS_NO_FORMAT) $<
$(POSTCOMPILE)
But after the "Circular" dependency is dropped, the pattern
is changed to:
alloc-ipa.o: | config.h build-gnulib-gdbserver/import/string.h
$(IPAGENT_COMPILE) $(WARN_CFLAGS_NO_FORMAT) $<
$(POSTCOMPILE)
So indeed now $< is empty, and the build step fails.
This happens only when alloc.o needs to be built, when alloc.o
was already built, the build succeeds, but it takes often
several attempts until the build succeeds.
By rewriting the alloc-ipa.c: ../alloc.c rule into a pattern
rule, the problem goes away.
While already at it, this patch removes also the
$(WARN_CFLAGS_NO_FORMAT) from the build rule, which is just a
copy/paste thing that is not necessary for alloc.c at all.
|
|
I noticed that get_exec_file could return a "const char *". This
patch implements this change.
I couldn't build all the code -- but I did build Linux native and a
mingw cross.
Consequently, the NTO code has a hack, where it casts away const. I
think this can be removed, but that required more work there, and
since I couldn't compile it, I felt it best not to try.
Let me know what you think.
gdb/ChangeLog
2019-12-16 Tom Tromey <tromey@adacore.com>
* windows-nat.c (windows_nat_target::attach): Update.
* remote.c (extended_remote_target::attach): Update.
* procfs.c (procfs_target::attach): Update.
* nto-procfs.c (nto_procfs_target::attach): Update.
(nto_procfs_target::create_inferior): Update.
* inf-ptrace.c (inf_ptrace_target::attach): Update.
* gnu-nat.c (gnu_nat_target::attach): Update.
(gnu_nat_target::detach): Update.
* darwin-nat.c (darwin_nat_target::attach): Update.
* corefile.c (get_exec_file): Constify result. Remove extraneous
return.
* bsd-kvm.c (bsd_kvm_target_open): Update.
* gdbsupport/common-inferior.h (get_exec_file): Constify result.
gdb/gdbserver/ChangeLog
2019-12-16 Tom Tromey <tromey@adacore.com>
* server.c (get_exec_file): Constify result.
Change-Id: I29c60f7313a7def0dcb290ff0c2a4c1dea4f981f
|
|
To do that, this patch makes IPA compile safe-strerror as well. Because
it doesn't use Gnulib, it calls the Glibc version of strerror_r directly.
Consequently this patch also removes the configure checks for strerror.
gdb/ChangeLog:
2019-12-10 Christian Biesinger <cbiesinger@google.com>
* config.in: Regenerate.
* configure: Regenerate.
* gdbsupport/agent.c (gdb_connect_sync_socket): Call
safe_strerror instead of strerror.
* gdbsupport/common.m4: Don't check for strerror.
* gdbsupport/safe-strerror.c: Support both the glibc version
of strerror_r and the XSI version.
gdb/gdbserver/ChangeLog:
2019-12-10 Christian Biesinger <cbiesinger@google.com>
* Makefile.in: Add safe-strerror.c to gdbreplay and IPA, and change
UNDO_GNULIB_CFLAGS to undo strerror_r instead of strerror.
* config.in: Regenerate.
* configure: Regenerate.
* configure.ac: Don't check for strerror.
* linux-i386-ipa.c (initialize_fast_tracepoint_trampoline_buffer):
Call safe_strerror instead of strerror.
* server.h (strerror): Remove this now-unnecessary declaration.
* tracepoint.c (init_named_socket): Call safe_strerror instead of
strerror.
(gdb_agent_helper_thread): Likewise.
* utils.c (perror_with_name): Likewise.
Change-Id: I74848f072dcde75cb55c435ef9398dc8f958cd73
|
|
This adds some configury so that gdb can set the names of worker
threads. This makes them show up more nicely when debugging gdb
itself.
2019-11-26 Tom Tromey <tom@tromey.com>
* gdbsupport/thread-pool.c (thread_pool::set_thread_count): Set
name of worker thread.
* gdbsupport/common.m4 (GDB_AC_COMMON): Check for
pthread_setname_np.
* configure, config.in: Rebuild.
gdb/gdbserver/ChangeLog
2019-11-26 Tom Tromey <tom@tromey.com>
* configure, config.in: Rebuild.
Change-Id: I60473d65ae9ae14d8c56ddde39684240c16aaf35
|
|
This adds configury support and an RAII class that can be used to
temporarily block signals that are used by gdb. (This class is not
used in this patch, but it split out for easier review.)
The idea of this patch is that these signals should only be delivered
to the main thread. So, when creating a background thread, they are
temporarily blocked; the blocked state is inherited by the new thread.
The sigprocmask man page says:
The use of sigprocmask() is unspecified in a multithreaded
process; see pthread_sigmask(3).
This patch changes gdb to use pthread_sigmask when appropriate, by
introducing a convenience define.
I've updated gdbserver as well, because I had to touch gdbsupport, and
because the threading patches will make it link against the thread
library.
I chose not to touch the NTO code, because I don't know anything about
that platform and because I cannot test it.
Finally, this modifies an existing spot in the Guile layer to use the
new facility.
gdb/ChangeLog
2019-11-26 Tom Tromey <tom@tromey.com>
* gdbsupport/signals-state-save-restore.c (original_signal_mask):
Remove comment.
(save_original_signals_state, restore_original_signals_state): Use
gdb_sigmask.
* linux-nat.c (block_child_signals, restore_child_signals_mask)
(_initialize_linux_nat): Use gdb_sigmask.
* guile/guile.c (_initialize_guile): Use block_signals.
* Makefile.in (HFILES_NO_SRCDIR): Add gdb-sigmask.h.
* gdbsupport/gdb-sigmask.h: New file.
* event-top.c (async_sigtstp_handler): Use gdb_sigmask.
* cp-support.c (gdb_demangle): Use gdb_sigmask.
* gdbsupport/common.m4 (GDB_AC_COMMON): Check for
pthread_sigmask.
* configure, config.in: Rebuild.
* gdbsupport/block-signals.h: New file.
gdb/gdbserver/ChangeLog
2019-11-26 Tom Tromey <tom@tromey.com>
* remote-utils.c (block_unblock_async_io): Use gdb_sigmask.
* linux-low.c (linux_wait_for_event_filtered, linux_async): Use
gdb_sigmask.
* configure, config.in: Rebuild.
Change-Id: If3f37dc57dd859c226e9e4d79458a0514746e8c6
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|
This adds a configure check for std::thread. This is needed because
std::thread is not available on some systems, like some versions of
mingw and DJGPP.
This also adds configury to make sure that a threaded gdb links
against the correct threading library (-lpthread or the like), and
passes the right flags (e.g., -pthread) to the compilations.
Note that this also links gdbserver against the thread library. This
is not strictly necessary at this point in the series, but a later
patch will change gdbsupport to use pthread_sigmask, at which point
this will be needed.
gdb/ChangeLog
2019-11-26 Tom Tromey <tom@tromey.com>
* acinclude.m4: Include ax_pthread.m4.
* Makefile.in (PTHREAD_CFLAGS, PTHREAD_LIBS): New variables.
(INTERNAL_CFLAGS_BASE): Use PTHREAD_CFLAGS.
(CLIBS): Use PTHREAD_LIBS.
(aclocal_m4_deps): Add ax_pthread.m4.
* config.in, configure: Rebuild.
* gdbsupport/common.m4 (GDB_AC_COMMON): Check for std::thread.
gdb/gdbserver/ChangeLog
2019-11-26 Tom Tromey <tom@tromey.com>
* Makefile.in (PTHREAD_CFLAGS, PTHREAD_LIBS): New variables.
(INTERNAL_CFLAGS_BASE): Use PTHREAD_CFLAGS.
(GDBSERVER_LIBS): Use PTHREAD_LIBS.
* acinclude.m4: Include ax_pthread.m4.
* config.in, configure: Rebuild.
Change-Id: I00ec55db6077f2615421a93461fc3be57e916aa0
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|
This provides threadsafety. Unfortunately, since libinproctrace.so
does not link to gnulib, we can't use it there, especially since it
still includes the gnulib headers (so it is difficult to directly
call the system strerror_r).
gdb/ChangeLog:
2019-11-26 Christian Biesinger <cbiesinger@google.com>
* linux-nat.c (detach_one_lwp): Call safe_strerror instead of
strerror.
* nto-procfs.c (nto_procfs_target::create_inferior): Likewise.
* windows-nat.c (windows_nat_target::create_inferior): Likewise.
gdb/gdbserver/ChangeLog:
2019-11-26 Christian Biesinger <cbiesinger@google.com>
* debug.c (debug_set_output): Call safe_strerror instead of
strerror.
* linux-low.c (attach_proc_task_lwp_callback): Likewise.
(linux_kill_one_lwp): Likewise.
(linux_detach_one_lwp): Likewise.
(linux_wait_for_event_filtered): Likewise.
(store_register): Likewise.
* lynx-low.c (lynx_attach): Likewise.
* mem-break.c (insert_memory_breakpoint): Likewise.
(remove_memory_breakpoint): Likewise.
(delete_fast_tracepoint_jump): Likewise.
(set_fast_tracepoint_jump): Likewise.
(uninsert_fast_tracepoint_jumps_at): Likewise.
(reinsert_fast_tracepoint_jumps_at): Likewise.
* nto-low.c (nto_xfer_memory): Likewise.
(nto_resume): Likewise.
Change-Id: I9e259cdcaa6e11bbcc4ee6bdc5b7127d73e11abe
|
|
Christian pointed out that I had accidentally put a ChangeLog entry
into gdbserver that was meant for testsuite.
I'm checking in this patch to fix it.
Change-Id: Iba6124cea6f63539ad66494d3355fb657b78a66d
|
|
In MI mode, print_ada_task_info can crash in find_thread_ptid when
trying to print an Ada task that is no longer alive. This patch
avoids the problem by checking for this case.
Because this is Ada-specific, and because Joel approved it internally,
I am checking it in.
gdb/ChangeLog
2019-11-22 Tom Tromey <tromey@adacore.com>
* ada-tasks.c (ada_task_is_alive): Make parameter const.
(print_ada_task_info): Don't try to fetch thread id if task is not
alive.
gdb/gdbserver/ChangeLog
2019-11-22 Tom Tromey <tromey@adacore.com>
* gdb.ada/tasks.exp: Add -ada-task-info regression test.
* gdb.ada/tasks/foo.adb: Add another stopping location.
Change-Id: If25eae6507eebb7537eb8adbcbaa1fc1eec88f5c
|
|
The current code checks for the presence of a SVE target description by
comparing the number of registers. This is a bit fragile since the number
of registers can change whenever we add new sets. Like PAC, for example.
If the comparison breaks, then we're left with SVE registers in the
description, but gdbserver doesn't send the registers to GDB, which in
turn displays stale information to the user.
The following patch changes the check to use the SVE feature string instead,
which hopefully should be more stable.
gdb/gdbserver/ChangeLog:
2019-11-20 Luis Machado <luis.machado@linaro.org>
* linux-aarch64-low.c (is_sve_tdesc): Check against target feature
instead of register count.
* tdesc.c (tdesc_contains_feature): New function.
* tdesc.h (tdesc_contains_feature): New prototype.
Change-Id: I28b782cb1677560ca9a06a1be442974b25aabae4
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|
There is no need to keep mingw-strerror around; we can just always use
the code from posix-strerror. The main reason we had that code, it
seems, is to handle winsock error codes, but gnulib's version
handles those.
Unfortunately the code can't be moved into common-utils.c because
libinproctrace.so uses common-utils but not gnulib.
gdb/ChangeLog:
2019-11-15 Christian Biesinger <cbiesinger@google.com>
* Makefile.in: Replace {posix,mingw}-strerror.c with safe-strerror.c.
* configure: Regenerate.
* configure.ac: Don't source common.host.
* gdbsupport/common.host: Remove.
* gdbsupport/mingw-strerror.c: Remove.
* gdbsupport/posix-strerror.c: Rename to...
* gdbsupport/safe-strerror.c: ...this.
gdb/gdbserver/ChangeLog:
2019-11-15 Christian Biesinger <cbiesinger@google.com>
* Makefile.in: Add safe-strerror.c.
* configure: Regenerate.
* configure.ac: Don't source common.host.
Change-Id: I9e6d8a752fc398784201f370cafee65e0ea05474
|
|
Makes sure to assign the return value of strerror_r to an int,
so that we get a compile error if we accidentally get the
wrong version.
gdb/ChangeLog:
2019-11-15 Christian Biesinger <cbiesinger@google.com>
* config.in: Regenerate.
* configure: Regenerate.
* gdbsupport/common.m4: No longer check for strerror_r.
* gdbsupport/posix-strerror.c (safe_strerror): Always call the
POSIX version of strerror_r, now that gnulib provides it if
necessary.
gdb/gdbserver/ChangeLog:
2019-11-15 Christian Biesinger <cbiesinger@google.com>
* config.in: Regenerate.
* configure: Regenerate.
gnulib/ChangeLog:
2019-11-15 Christian Biesinger <cbiesinger@google.com>
* Makefile.in: Regenerate.
* aclocal.m4: Regenerate.
* config.in: Regenerate.
* configure: Regenerate.
* import/Makefile.am: Update.
* import/Makefile.in: Regenerate.
* import/extra/config.rpath: New file.
* import/glthread/lock.c: New file.
* import/glthread/lock.h: New file.
* import/glthread/threadlib.c: New file.
* import/m4/gnulib-cache.m4: Update.
* import/m4/gnulib-comp.m4: Update.
* import/m4/lib-ld.m4: New file.
* import/m4/lib-link.m4: New file.
* import/m4/lib-prefix.m4: New file.
* import/m4/lock.m4: New file.
* import/m4/strerror_r.m4: New file.
* import/m4/threadlib.m4: New file.
* import/strerror_r.c: New file.
* update-gnulib.sh: Import strerror_r-posix.
Change-Id: I5cfeb12a5203a4cd94a78581541e6085a68685c3
|
|
The gdb format mechanism doesn't currently support the 'z' size
modifier, there are a few places in GDB where this is used. Instead
of removing these uses lets just add support to GDB for using 'z'.
I found this issue when trying to use some of the debug output.
Before this commit:
(gdb) set debug dwarf-line 9
(gdb) file test
Reading symbols from test...
Unrecognized format specifier 'z' in printf
(No debugging symbols found in test)
(gdb)
After this commit:
(gdb) set debug dwarf-line 9
(gdb) file test
Reading symbols from test...
Adding dir 1: /usr/include
Adding file 1: test.c
Adding file 2: stdc-predef.h
Processing actual line 3: file 1, address 0x4004a0, is_stmt 1, discrim 0
Processing actual line 4: file 1, address 0x4004a0, is_stmt 1, discrim 0
.... lots of debug output ...
Processing actual line 10: file 1, address 0x4003b7, is_stmt 0, discrim 0
(gdb)
I've added a self test to cover the integer format size modifiers,
including the 'z' modifier.
gdb/ChangeLog:
* gdbsupport/format.c (format_pieces::format_pieces): Support
printf 'z' size modifier.
* gdbsupport/format.h (enum argclass): Add size_t_arg.
* printcmd.c (ui_printf): Handle size_t_arg.
* ui-out.c (ui_out::vmessage): Likewise.
* unittests/format_pieces-selftests.c (test_format_int_sizes): New
function.
(run_tests): Call test_format_int_sizes.
gdb/gdbserver/ChangeLog:
* ax.c (ax_printf): Handle size_t_arg.
Change-Id: Ib6c44d88aa5bce265d757e4c0698881803dd186f
|
|
Improves threadsafety. This will be important when the patch series at
https://gnutoolchain-gerrit.osci.io/r/c/binutils-gdb/+/176
lands.
gdb/ChangeLog:
2019-11-06 Christian Biesinger <cbiesinger@google.com>
* linux-tdep.c (linux_info_proc): Use strtok_r instead of strtok.
* mi/mi-main.c (output_cores): Likewise.
* nat/linux-osdata.c (linux_xfer_osdata_cpus): Likewise.
(linux_xfer_osdata_modules): Likewise.
* remote.c (register_remote_support_xml): Likewise.
* sparc64-tdep.c (adi_is_addr_mapped): Likewise.
* xml-syscall.c (syscall_create_syscall_desc): Likewise.
gdb/gdbserver/ChangeLog:
2019-11-06 Christian Biesinger <cbiesinger@google.com>
* linux-x86-low.c (x86_linux_process_qsupported): Use strtok_r
instead of strtok.
* server.c (handle_query): Likewise.
(captured_main): Likewise.
Change-Id: Ief6138965a24398e5fc064598cd8f2abd3b5047c
|
|
gdb/ChangeLog:
2019-11-01 Christian Biesinger <cbiesinger@google.com>
* configure: Regenerate.
* configure.ac: Remove check for strerror_r.
* gdbsupport/common.m4: Check for strerror_r.
gdb/gdbserver/ChangeLog:
2019-11-01 Christian Biesinger <cbiesinger@google.com>
* configure: Regenerate.
* configure.ac: Remove check for strerror_r.
Change-Id: Ibc290c3f84b1db23e998cffdbe2c1f97651d2a8d
|
|
I forgot to do this in b231e86ac9608056ea837e24d42a878927f5787a
Since safe_strerror is in gdbsupport, gdbserver also needs to
check for strerror_r, although it's less critical since gdbserver
does not use threads as much.
gdb/gdbserver/ChangeLog:
2019-10-31 Christian Biesinger <cbiesinger@google.com>
* config.in: Regenerate.
* configure: Regenerate.
* configure.ac: Also check for strerror_r.
Change-Id: I6a67c8543cd7a28d6dc94f5986f56abcb55727fe
|
|
Also moves an int declaration inside the for loop.
Code cleanup, no change in behavior intended.
gdb/ChangeLog:
2019-10-31 Christian Biesinger <cbiesinger@google.com>
* gdbsupport/agent.c (debug_agent): Change type to bool.
(use_agent): Likewise.
(all_agent_symbols_look_up): Likewise.
(agent_loaded_p): Change return value to bool.
(agent_look_up_symbols): Update.
(agent_capability_check): Change return value to bool.
* gdbsupport/agent.h (agent_loaded_p): Likewise.
(debug_agent): Change type to bool.
(use_agent): Likewise.
(agent_capability_check): Change return value to bool.
gdb/gdbserver/ChangeLog:
2019-10-31 Christian Biesinger <cbiesinger@google.com>
* ax.h (debug_agent): Remove duplicate declaration.
Change-Id: Icb28a65fcc8c7108bcd59287e6be66bf56f8ccb5
|
|
Fix typos in comments. NFC.
Tested on x86_64-linux.
gdb/ChangeLog:
2019-10-26 Tom de Vries <tdevries@suse.de>
* aarch64-linux-tdep.c: Fix typos in comments.
* aarch64-tdep.c: Same.
* ada-lang.c: Same.
* amd64-nat.c: Same.
* arc-tdep.c: Same.
* arch/aarch64-insn.c: Same.
* block.c: Same.
* breakpoint.h: Same.
* btrace.h: Same.
* c-varobj.c: Same.
* cli/cli-decode.c: Same.
* cli/cli-script.c: Same.
* cli/cli-utils.h: Same.
* coff-pe-read.c: Same.
* coffread.c: Same.
* compile/compile-cplus-symbols.c: Same.
* compile/compile-object-run.c: Same.
* completer.c: Same.
* corelow.c: Same.
* cp-support.c: Same.
* demangle.c: Same.
* dwarf-index-write.c: Same.
* dwarf2-frame.c: Same.
* dwarf2-frame.h: Same.
* eval.c: Same.
* frame-base.h: Same.
* frame.h: Same.
* gdbcmd.h: Same.
* gdbtypes.h: Same.
* gnu-nat.c: Same.
* guile/scm-objfile.c: Same.
* i386-tdep.c: Same.
* i386-tdep.h: Same.
* infcall.c: Same.
* infcall.h: Same.
* linux-nat.c: Same.
* m68k-tdep.c: Same.
* macroexp.c: Same.
* memattr.c: Same.
* mi/mi-cmd-disas.c: Same.
* mi/mi-getopt.h: Same.
* mi/mi-main.c: Same.
* minsyms.c: Same.
* nat/aarch64-sve-linux-sigcontext.h: Same.
* objfiles.h: Same.
* ppc-linux-nat.c: Same.
* ppc-linux-tdep.c: Same.
* ppc-tdep.h: Same.
* progspace.h: Same.
* prologue-value.h: Same.
* python/py-evtregistry.c: Same.
* python/py-instruction.h: Same.
* record-btrace.c: Same.
* record-full.c: Same.
* remote.c: Same.
* rs6000-tdep.c: Same.
* ser-tcp.c: Same.
* sol-thread.c: Same.
* sparc-sol2-tdep.c: Same.
* sparc64-tdep.c: Same.
* stabsread.c: Same.
* symfile.c: Same.
* symtab.h: Same.
* target.c: Same.
* tracepoint.c: Same.
* tui/tui-data.h: Same.
* tui/tui-io.c: Same.
* tui/tui-win.c: Same.
* tui/tui.c: Same.
* unittests/rsp-low-selftests.c: Same.
* user-regs.h: Same.
* utils.c: Same.
* utils.h: Same.
* valarith.c: Same.
* valops.c: Same.
* valprint.c: Same.
* valprint.h: Same.
* value.c: Same.
* value.h: Same.
* varobj.c: Same.
* x86-nat.h: Same.
* xtensa-tdep.c: Same.
gdb/gdbserver/ChangeLog:
2019-10-26 Tom de Vries <tdevries@suse.de>
* linux-aarch64-low.c: Fix typos in comments.
* linux-arm-low.c: Same.
* linux-low.c: Same.
* linux-ppc-low.c: Same.
* proc-service.c: Same.
* regcache.h: Same.
* server.c: Same.
* tracepoint.c: Same.
* win32-low.c: Same.
gdb/stubs/ChangeLog:
2019-10-26 Tom de Vries <tdevries@suse.de>
* ia64vms-stub.c: Fix typos in comments.
* m32r-stub.c: Same.
* m68k-stub.c: Same.
* sh-stub.c: Same.
gdb/testsuite/ChangeLog:
2019-10-26 Tom de Vries <tdevries@suse.de>
* gdb.base/bigcore.c: Fix typos in comments.
* gdb.base/ctf-ptype.c: Same.
* gdb.base/long_long.c: Same.
* gdb.dwarf2/dw2-op-out-param.S: Same.
* gdb.python/py-evthreads.c: Same.
* gdb.reverse/i387-stack-reverse.c: Same.
* gdb.trace/tfile.c: Same.
* lib/compiler.c: Same.
* lib/compiler.cc: Same.
Change-Id: I8573d84a577894270179ae30f46c48d806fc1beb
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gdbserver has its own implementation of xstrdup. However, because
gdbserver links against libiberty now, I think this is not needed.
This patch removes it.
gdb/gdbserver/ChangeLog
2019-10-25 Tom Tromey <tromey@adacore.com>
* utils.c (xstrdup): Remove.
Change-Id: I2aa56d18d0f9af8e70a00dff431d2fda5705a5d5
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I noticed that gdbsupport uses HAVE_SIGPROCMASK, but common.m4 does
not check for it. This means that gdbserver may not compile some
gdbsupport code properly. This patch fixes this error.
gdb/ChangeLog
2019-10-23 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* configure.ac: Don't check for sigprocmask.
* gdbsupport/common.m4 (GDB_AC_COMMON): Check for sigprocmask.
gdb/gdbserver/ChangeLog
2019-10-23 Tom Tromey <tom@tromey.com>
* configure, config.in: Rebuild.
Change-Id: I2c0a4dd2c376507b9483b38707a242382faa8163
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Pedro pointed out that sinclude does not error if a file is missing.
This patch changes gdb to only use m4_include, which seems more
correct.
gdb/ChangeLog
2019-10-23 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* acinclude.m4: Use m4_include, not sinclude.
gdb/gdbserver/ChangeLog
2019-10-23 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* acinclude.m4: Use m4_include, not sinclude.
gdb/testsuite/ChangeLog
2019-10-23 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* aclocal.m4: Use m4_include, not sinclude.
Change-Id: I970362e0af7875f9f72796401126acf0ff6dba11
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I happened to notice that "make" would always print:
CONFIG_HEADERS=config.h:config.in \
CONFIG_COMMANDS="default depdir" \
CONFIG_FILES= \
CONFIG_LINKS= \
/bin/sh config.status
config.status: creating config.h
config.status: config.h is unchanged
on every rebuild. This seems to have changed due to an autoconf
upgrade at some point in the past. In the autoconf gdb uses now, it
works to use AC_CONFIG_HEADERS and then create the stamp file via the
"commands" argument.
This patch also fixes up Makefile.in to use the new-style
config.status invocation. It's no longer necessary to pass the output
file names via environment variables.
gdb/ChangeLog
2019-10-17 Tom Tromey <tromey@adacore.com>
* configure: Rebuild.
* configure.ac: Use AC_CONFIG_HEADERS. Create stamp-h there, not
in AC_CONFIG_FILES invocation.
* Makefile.in (Makefile, data-directory/Makefile, stamp-h): Use
new-style config.status invocation.
gdb/gdbserver/ChangeLog
2019-10-17 Tom Tromey <tromey@adacore.com>
* configure: Rebuild.
* configure.ac: Use AC_CONFIG_HEADERS. Create stamp-h there, not
in AC_CONFIG_FILES invocation.
* Makefile.in (stamp-h, Makefile): Use new-style config.status
invocation.
Change-Id: Ia0530d1c5b9756812d29ddb8dc1062326155e61e
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xml-builtin.c only has character arrays and no dependencies, so this
creates a simple header file for that purpose so that gdbserver
can include that instead of re-declaring xml_builtin.
Despite the name, feature_to_c.sh is already specific to xml_builtins
(it hardcodes the variable name), so making it always output the
include for xml-builtin.h seems fine.
gdb/ChangeLog:
2019-10-16 Christian Biesinger <cbiesinger@google.com>
* Makefile.in: Add xml-builtin.h.
* features/feature_to_c.sh: Add an include for xml-builtin.h
to ensure that the compiler checks that the types match.
* xml-builtin.h: New file.
* xml-support.c (fetch_xml_builtin): Add missing const.
* xml-support.h: Remove declaration of xml_builtins.
gdb/gdbserver/ChangeLog:
2019-10-16 Christian Biesinger <cbiesinger@google.com>
* server.c: Include xml-builtin.h.
(get_xml_features): Don't declare xml_builtins here.
Change-Id: I806ef0851c43ead90b545a11794e41f5e5178436
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This comit:
commit 0dc327459b19e6765c8fe80957f5c8620611628e
Date: Mon Oct 7 16:38:53 2019 +0100
gdb: Remove vec.{c,h} and update code to not include vec.h
Broke the GDB build due to leaving a reference to vec-ipa.o in the
Makefile.in, this file is built from vec.c which has been removed.
I got away with this as I had an old version of the vec-ipa.o file
still in my build tree.
With this commit in place a clean build now completed successfully.
gdb/ChangeLog:
* Makefile.in: Remove references to vec-ipa.o.
Change-Id: I4cf55951158dd7ee8f60cd054311a7c367e1d7bf
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