diff options
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/NEWS | 24 | ||||
| -rw-r--r-- | gdb/doc/ChangeLog | 12 | ||||
| -rw-r--r-- | gdb/doc/gdb.texinfo | 83 |
4 files changed, 124 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 53d6d5d..a316b4e 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,10 @@ 2015-05-12 Don Breazeal <donb@codesourcery.com> + * NEWS: Announce fork support in the RSP and support + for fork debugging in extended mode. + +2015-05-12 Don Breazeal <donb@codesourcery.com> + * remote.c (remote_insert_fork_catchpoint): New function. (remote_remove_fork_catchpoint): New function. (remote_insert_vfork_catchpoint): New function. @@ -128,6 +128,30 @@ qXfer:exec-file:read Return the full absolute name of the file that was executed to create a process running on the remote system. +fork stop reason + Indicates that a fork system call was executed. + +vfork stop reason + Indicates that a vfork system call was executed. + +vforkdone stop reason + Indicates that a vfork child of the specified process has executed + an exec or exit, allowing the vfork parent to resume execution. + +fork-events and vfork-events features in qSupported + The qSupported packet allows GDB to request support for fork and + vfork events using new 'gdbfeatures' fork-events and vfork-events, + and the qSupported response can contain the corresponding + 'stubfeatures'. Set and show commands can be used to display + whether these features are enabled. + +* Extended-remote fork events + + ** GDB now has support for fork events on extended-remote Linux + targets. For targets with Linux kernels 2.5.60 and later, this + enables follow-fork-mode and detach-on-fork for both fork and + vfork, as well as fork and vfork catchpoints. + * The info record command now shows the recording format and the branch tracing configuration for the current thread when using the btrace record target. diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index 05aeab7..849deb8 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,15 @@ +2015-05-12 Don Breazeal <donb@codesourcery.com> + + * gdb.texinfo (Forks): Note that fork debugging is + supported in extended mode. + (Remote Configuration): Add fork event features to table + of packet settings. + (Stop Reply Packets): Add fork events to list of stop reasons. + (General Query Packets): Add fork events to tables of + 'gdbfeatures' and 'stub features' supported in the qSupported + packet, as well as to the list containing stub feature + details. + 2015-05-12 Gary Benson <gbenson@redhat.com> * gdb.texinfo (General Query Packets): Document diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 5461356..cb9cd35 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -3135,6 +3135,9 @@ create additional processes using the @code{fork} or @code{vfork} functions. Currently, the only platforms with this feature are HP-UX (11.x and later only?) and @sc{gnu}/Linux (kernel version 2.5.60 and later). +The fork debugging commands are supported in both native mode and when +connected to @code{gdbserver} using @kbd{target extended-remote}. + By default, when a program forks, @value{GDBN} will continue to debug the parent process and the child process will run unimpeded. @@ -19938,6 +19941,14 @@ are: @tab @code{hwbreak stop reason} @tab @code{hbreak} +@item @code{fork-event-feature} +@tab @code{fork stop reason} +@tab @code{fork} + +@item @code{vfork-event-feature} +@tab @code{vfork stop reason} +@tab @code{vfork} + @end multitable @node Remote Stub @@ -35372,6 +35383,49 @@ The @var{r} part must be left empty. The same remarks about @samp{qSupported} and non-stop mode above apply. + +@cindex fork events, remote reply +@item fork +The packet indicates that @code{fork} was called, and @var{r} +is the thread ID of the new child process. Refer to +@ref{thread-id syntax} for the format of the @var{thread-id} +field. This packet is only applicable to targets that support +fork events. + +This packet should not be sent by default; older @value{GDBN} versions +did not support it. @value{GDBN} requests it, by supplying an +appropriate @samp{qSupported} feature (@pxref{qSupported}). The +remote stub must also supply the appropriate @samp{qSupported} feature +indicating support. + +@cindex vfork events, remote reply +@item vfork +The packet indicates that @code{vfork} was called, and @var{r} +is the thread ID of the new child process. Refer to +@ref{thread-id syntax} for the format of the @var{thread-id} +field. This packet is only applicable to targets that support +vfork events. + +This packet should not be sent by default; older @value{GDBN} versions +did not support it. @value{GDBN} requests it, by supplying an +appropriate @samp{qSupported} feature (@pxref{qSupported}). The +remote stub must also supply the appropriate @samp{qSupported} feature +indicating support. + +@cindex vforkdone events, remote reply +@item vforkdone +The packet indicates that a child process created by a vfork +has either called @code{exec} or terminated, so that the +address spaces of the parent and child process are no longer +shared. The @var{r} part is ignored. This packet is only +applicable to targets that support vforkdone events. + +This packet should not be sent by default; older @value{GDBN} versions +did not support it. @value{GDBN} requests it, by supplying an +appropriate @samp{qSupported} feature (@pxref{qSupported}). The +remote stub must also supply the appropriate @samp{qSupported} feature +indicating support. + @end table @item W @var{AA} @@ -35964,6 +36018,18 @@ reason in stop replies. @xref{swbreak stop reason}, for details. @item hwbreak This feature indicates whether @value{GDBN} supports the hwbreak stop reason in stop replies. @xref{swbreak stop reason}, for details. + +@item fork-events +This feature indicates whether @value{GDBN} supports fork event +extensions to the remote protocol. @value{GDBN} does not use such +extensions unless the stub also reports that it supports them by +including @samp{fork-events+} in its @samp{qSupported} reply. + +@item vfork-events +This feature indicates whether @value{GDBN} supports vfork event +extensions to the remote protocol. @value{GDBN} does not use such +extensions unless the stub also reports that it supports them by +including @samp{vfork-events+} in its @samp{qSupported} reply. @end table Stubs should ignore any unknown values for @@ -36207,6 +36273,16 @@ These are the currently defined stub features and their properties: @tab @samp{-} @tab No +@item @samp{fork-events} +@tab No +@tab @samp{-} +@tab No + +@item @samp{vfork-events} +@tab No +@tab @samp{-} +@tab No + @end multitable These are the currently defined stub features, in more detail: @@ -36399,6 +36475,13 @@ breakpoints. The remote stub reports the @samp{hwbreak} stop reason for hardware breakpoints. +@item fork-events +The remote stub reports the @samp{fork} stop reason for fork events. + +@item vfork-events +The remote stub reports the @samp{vfork} stop reason for vfork events +and vforkdone events. + @end table @item qSymbol:: |