* gdb.texinfo (Hurd Native): New subsection, documents
Hurd-specific commands.
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Eli Zaretskii
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@ -1,3 +1,8 @@
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2005-04-15 Eli Zaretskii <eliz@gnu.org>
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* gdb.texinfo (Hurd Native): New subsection, documents
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Hurd-specific commands.
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2005-04-09 Eli Zaretskii <eliz@gnu.org>
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2005-04-09 Eli Zaretskii <eliz@gnu.org>
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* gdb.texinfo (Print Settings): Document "set/show print
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* gdb.texinfo (Print Settings): Document "set/show print
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@ -12319,6 +12319,7 @@ configurations.
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* SVR4 Process Information:: SVR4 process information
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* SVR4 Process Information:: SVR4 process information
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* DJGPP Native:: Features specific to the DJGPP port
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* DJGPP Native:: Features specific to the DJGPP port
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* Cygwin Native:: Features specific to the Cygwin port
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* Cygwin Native:: Features specific to the Cygwin port
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* Hurd Native:: Features specific to @sc{gnu} Hurd
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@end menu
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@end menu
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@node HP-UX
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@node HP-UX
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@ -12835,6 +12836,180 @@ The author of these extensions is not entirely convinced that setting a
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break point within a shared DLL like @file{kernel32.dll} is completely
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break point within a shared DLL like @file{kernel32.dll} is completely
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safe.
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safe.
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@node Hurd Native
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@subsection Commands specific to @sc{gnu} Hurd systems
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@cindex @sc{gnu} Hurd debugging
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This subsection describes @value{GDBN} commands specific to the
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@sc{gnu} Hurd native debugging.
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@table @code
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@item set signals
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@itemx set sigs
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@kindex set signals@r{, Hurd command}
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@kindex set sigs@r{, Hurd command}
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This command toggles the state of inferior signal interception by
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@value{GDBN}. Mach exceptions, such as breakpoint traps, are not
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affected by this command. @code{sigs} is a shorthand alias for
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@code{signals}.
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@item show signals
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@itemx show sigs
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@kindex show signals@r{, Hurd command}
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@kindex show sigs@r{, Hurd command}
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Show the current state of intercepting inferior's signals.
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@item set signal-thread
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@itemx set sigthread
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@kindex set signal-thread
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@kindex set sigthread
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This command tells @value{GDBN} which thread is the @code{libc} signal
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thread. That thread is run when a signal is delivered to a running
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process. @code{set sigthread} is the shorthand alias of @code{set
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signal-thread}.
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@item show signal-thread
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@itemx show sigthread
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@kindex show signal-thread
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@kindex show sigthread
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These two commands show which thread will run when the inferior is
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delivered a signal.
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@item set stopped
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@kindex set stopped@r{, Hurd command}
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This commands tells @value{GDBN} that the inferior process is stopped,
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as with the @code{SIGSTOP} signal. The stopped process can be
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continued by delivering a signal to it.
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@item show stopped
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@kindex show stopped@r{, Hurd command}
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This command shows whether @value{GDBN} thinks the debuggee is
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stopped.
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@item set exceptions
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@kindex set exceptions@r{, Hurd command}
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Use this command to turn off trapping of exceptions in the inferior.
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When exception trapping is off, neither breakpoints nor
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single-stepping will work. To restore the default, set exception
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trapping on.
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@item show exceptions
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@kindex show exceptions@r{, Hurd command}
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Show the current state of trapping exceptions in the inferior.
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@item set task pause
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@kindex set task@r{, Hurd commands}
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@cindex task attributes (@sc{gnu} Hurd)
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@cindex pause current task (@sc{gnu} Hurd)
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This command toggles task suspension when @value{GDBN} has control.
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Setting it to on takes effect immediately, and the task is suspended
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whenever @value{GDBN} gets control. Setting it to off will take
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effect the next time the inferior is continued. If this option is set
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to off, you can use @code{set thread default pause on} or @code{set
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thread pause on} (see below) to pause individual threads.
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@item show task pause
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@kindex show task@r{, Hurd commands}
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Show the current state of task suspension.
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@item set task detach-suspend-count
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@cindex task suspend count
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@cindex detach from task, @sc{gnu} Hurd
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This command sets the suspend count the task will be left with when
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@value{GDBN} detaches from it.
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@item show task detach-suspend-count
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Show the suspend count the task will be left with when detaching.
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@item set task exception-port
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@itemx set task excp
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@cindex task exception port, @sc{gnu} Hurd
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This command sets the task exception port to which @value{GDBN} will
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forward exceptions. The argument should be the value of the @dfn{send
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rights} of the task. @code{set task excp} is a shorthand alias.
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@item set noninvasive
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@cindex noninvasive task options
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This command switches @value{GDBN} to a mode that is the least
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invasive as far as interfering with the inferior is concerned. This
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is the same as using @code{set task pause}, @code{set exceptions}, and
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@code{set signals} to values opposite to the defaults.
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@item info send-rights
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@itemx info receive-rights
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@itemx info port-rights
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@itemx info port-sets
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@itemx info dead-names
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@itemx info ports
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@itemx info psets
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@cindex send rights, @sc{gnu} Hurd
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@cindex receive rights, @sc{gnu} Hurd
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@cindex port rights, @sc{gnu} Hurd
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@cindex port sets, @sc{gnu} Hurd
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@cindex dead names, @sc{gnu} Hurd
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These commands display information about, respectively, send rights,
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receive rights, port rights, port sets, and dead names of a task.
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There are also shorthand aliases: @code{info ports} for @code{info
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port-rights} and @code{info psets} for @code{info port-sets}.
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@item set thread pause
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@kindex set thread@r{, Hurd command}
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@cindex thread properties, @sc{gnu} Hurd
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@cindex pause current thread (@sc{gnu} Hurd)
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This command toggles current thread suspension when @value{GDBN} has
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control. Setting it to on takes effect immediately, and the current
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thread is suspended whenever @value{GDBN} gets control. Setting it to
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off will take effect the next time the inferior is continued.
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Normally, this command has no effect, since when @value{GDBN} has
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control, the whole task is suspended. However, if you used @code{set
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task pause off} (see above), this command comes in handy to suspend
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only the current thread.
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@item show thread pause
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@kindex show thread@r{, Hurd command}
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This command shows the state of current thread suspension.
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@item set thread run
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This comamnd sets whether the current thread is allowed to run.
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@item show thread run
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Show whether the current thread is allowed to run.
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@item set thread detach-suspend-count
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@cindex thread suspend count, @sc{gnu} Hurd
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@cindex detach from thread, @sc{gnu} Hurd
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This command sets the suspend count @value{GDBN} will leave on a
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thread when detaching. This number is relative to the suspend count
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found by @value{GDBN} when it notices the thread; use @code{set thread
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takeover-suspend-count} to force it to an absolute value.
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@item show thread detach-suspend-count
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Show the suspend count @value{GDBN} will leave on the thread when
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detaching.
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@item set thread exception-port
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@itemx set thread excp
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Set the thread exception port to which to forward exceptions. This
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overrides the port set by @code{set task exception-port} (see above).
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@code{set thread excp} is the shorthand alias.
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@item set thread takeover-suspend-count
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Normally, @value{GDBN}'s thread suspend counts are relative to the
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value @value{GDBN} finds when it notices each thread. This command
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changes the suspend counts to be absolute instead.
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@item set thread default
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@itemx show thread default
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@cindex thread default settings, @sc{gnu} Hurd
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Each of the above @code{set thread} commands has a @code{set thread
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default} counterpart (e.g., @code{set thread default pause}, @code{set
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thread default exception-port}, etc.). The @code{thread default}
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variety of commands sets the default thread properties for all
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threads; you can then change the properties of individual threads with
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the non-default commands.
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@end table
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@node Embedded OS
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@node Embedded OS
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@section Embedded Operating Systems
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@section Embedded Operating Systems
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