* gdb.texinfo: Make many HPPA conditionals unconditional,
including catchpoint description, since now on for all configs. * all-cfg.texi: @clear HPPA, since is mainly for very HP-specific specializations.
This commit is contained in:
parent
7363ff9083
commit
9de3835dab
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@ -1,3 +1,10 @@
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Wed Jan 20 17:47:45 1999 Stan Shebs <shebs@andros.cygnus.com>
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* gdb.texinfo: Make many HPPA conditionals unconditional,
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including catchpoint description, since now on for all configs.
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* all-cfg.texi: @clear HPPA, since is mainly for very HP-specific
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specializations.
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Thu Jan 14 17:10:12 1999 Stan Shebs <shebs@andros.cygnus.com>
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Thu Jan 14 17:10:12 1999 Stan Shebs <shebs@andros.cygnus.com>
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* Makefile.in (GDBvn.texi): Fix match expression to work with
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* Makefile.in (GDBvn.texi): Fix match expression to work with
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@ -18,8 +18,8 @@
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@c PLATFORM FLAGS:
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@c PLATFORM FLAGS:
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@set GENERIC
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@set GENERIC
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@c
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@c
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@c HP PA-RISC target:
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@c HP PA-RISC target ONLY:
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@set HPPA
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@clear HPPA
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@c
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@c
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@c Hitachi H8/300 target:
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@c Hitachi H8/300 target:
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@set H8
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@set H8
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@ -1,5 +1,5 @@
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\input texinfo @c -*-texinfo-*-
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\input texinfo @c -*-texinfo-*-
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@c Copyright 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998
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@c Copyright 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
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@c Free Software Foundation, Inc.
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@c Free Software Foundation, Inc.
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@c
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@c
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@c %**start of header
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@c %**start of header
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@ -35,7 +35,7 @@
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@set EDITION Sixth
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@set EDITION Sixth
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@c !!set GDB manual's revision date
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@c !!set GDB manual's revision date
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@set DATE April 1998
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@set DATE January 1999
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@end ifclear
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@end ifclear
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@c THIS MANUAL REQUIRES TEXINFO-2 macros and info-makers to format properly.
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@c THIS MANUAL REQUIRES TEXINFO-2 macros and info-makers to format properly.
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@ -70,7 +70,7 @@ This is the @value{EDITION} Edition, @value{DATE},
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of @cite{Debugging with @value{GDBN}: the @sc{gnu} Source-Level Debugger}
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of @cite{Debugging with @value{GDBN}: the @sc{gnu} Source-Level Debugger}
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for @value{GDBN} Version @value{GDBVN}.
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for @value{GDBN} Version @value{GDBVN}.
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Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998
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Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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Permission is granted to make and distribute verbatim copies of
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Permission is granted to make and distribute verbatim copies of
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@ -131,7 +131,7 @@ into another language, under the above conditions for modified versions.
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@end ifset
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@end ifset
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@vskip 0pt plus 1filll
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@vskip 0pt plus 1filll
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Copyright @copyright{} 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998
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Copyright @copyright{} 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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@sp 2
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@sp 2
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@ifclear HPPA
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@ifclear HPPA
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@ -268,26 +268,11 @@ Running Programs Under @value{GDBN}
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Stopping and Continuing
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Stopping and Continuing
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@ifclear CONLY
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@ifclear HPPA
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* Breakpoints:: Breakpoints, watchpoints, and exceptions
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@end ifclear
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@ifset HPPA
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* Breakpoints:: Breakpoints, watchpoints, and catchpoints
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* Breakpoints:: Breakpoints, watchpoints, and catchpoints
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@end ifset
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@end ifclear
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@ifset CONLY
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* Breakpoints:: Breakpoints and watchpoints
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@end ifset
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* Continuing and Stepping:: Resuming execution
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* Continuing and Stepping:: Resuming execution
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@ifset POSIX
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@ifset POSIX
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* Signals:: Signals
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* Signals:: Signals
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@end ifset
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@end ifset
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@ifclear BARETARGET
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@ifclear BARETARGET
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* Thread Stops:: Stopping and starting multi-thread programs
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* Thread Stops:: Stopping and starting multi-thread programs
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@end ifclear
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@end ifclear
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@ -296,17 +281,7 @@ Breakpoints and watchpoints
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* Set Breaks:: Setting breakpoints
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* Set Breaks:: Setting breakpoints
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* Set Watchpoints:: Setting watchpoints
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* Set Watchpoints:: Setting watchpoints
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@ifclear CONLY
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@ifclear HPPA
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* Exception Handling:: Breakpoints and exceptions
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@end ifclear
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@ifset HPPA
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* Set Catchpoints:: Setting catchpoints
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* Set Catchpoints:: Setting catchpoints
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@end ifset
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@end ifclear
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* Delete Breaks:: Deleting breakpoints
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* Delete Breaks:: Deleting breakpoints
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* Disabling:: Disabling breakpoints
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* Disabling:: Disabling breakpoints
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* Conditions:: Break conditions
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* Conditions:: Break conditions
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@ -331,7 +306,6 @@ Examining Source Files
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@ifclear DOSHOST
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@ifclear DOSHOST
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* Search:: Searching source files
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* Search:: Searching source files
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@end ifclear
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@end ifclear
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* Source Path:: Specifying source directories
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* Source Path:: Specifying source directories
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* Machine Code:: Source and machine code
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* Machine Code:: Source and machine code
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@ -416,7 +390,6 @@ Altering Execution
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@ifclear BARETARGET
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@ifclear BARETARGET
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* Signaling:: Giving your program a signal
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* Signaling:: Giving your program a signal
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@end ifclear
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@end ifclear
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* Returning:: Returning from a function
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* Returning:: Returning from a function
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* Calling:: Calling your program's functions
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* Calling:: Calling your program's functions
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* Patching:: Patching your program
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* Patching:: Patching your program
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@ -689,10 +662,6 @@ Stu Grossman wrote gdbserver.
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Jim Kingdon, Peter Schauer, Ian Taylor, and Stu Grossman made
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Jim Kingdon, Peter Schauer, Ian Taylor, and Stu Grossman made
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nearly innumerable bug fixes and cleanups throughout GDB.
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nearly innumerable bug fixes and cleanups throughout GDB.
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Cygnus Solutions has sponsored GDB maintenance and much of its
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development since 1991.
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@ifset HPPA
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The following people at the Hewlett-Packard Company contributed
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The following people at the Hewlett-Packard Company contributed
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support for the PA-RISC 2.0 architecture, HP-UX 10.20, 10.30, and 11.0
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support for the PA-RISC 2.0 architecture, HP-UX 10.20, 10.30, and 11.0
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(narrow mode), HP's implementation of kernel threads, HP's aC++
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(narrow mode), HP's implementation of kernel threads, HP's aC++
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@ -700,7 +669,9 @@ compiler, and the terminal user interface: Ben Krepp, Richard Title,
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John Bishop, Susan Macchia, Kathy Mann, Satish Pai, India Paul, Steve
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John Bishop, Susan Macchia, Kathy Mann, Satish Pai, India Paul, Steve
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Rehrauer, and Elena Zannoni. Kim Haase provided HP-specific
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Rehrauer, and Elena Zannoni. Kim Haase provided HP-specific
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information in this manual.
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information in this manual.
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@end ifset
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Cygnus Solutions has sponsored GDB maintenance and much of its
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development since 1991.
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@ifclear BARETARGET
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@ifclear BARETARGET
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@node Sample Session, Invocation, Summary, Top
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@node Sample Session, Invocation, Summary, Top
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@ -2569,21 +2540,7 @@ and why it stopped.
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@end table
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@end table
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@menu
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@menu
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@ifclear CONLY
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@ifclear HPPA
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* Breakpoints:: Breakpoints, watchpoints, and exceptions
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@end ifclear
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@ifset HPPA
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* Breakpoints:: Breakpoints, watchpoints, and catchpoints
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* Breakpoints:: Breakpoints, watchpoints, and catchpoints
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@end ifset
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@end ifclear
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@ifset CONLY
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* Breakpoints:: Breakpoints and watchpoints
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@end ifset
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* Continuing and Stepping:: Resuming execution
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* Continuing and Stepping:: Resuming execution
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@ifset POSIX
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@ifset POSIX
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* Signals:: Signals
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* Signals:: Signals
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@ -2595,23 +2552,8 @@ and why it stopped.
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@end menu
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@end menu
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@c makeinfo node-defaulting requires adjacency of @node and sectioning cmds
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@c ...hence distribute @node Breakpoints over two possible @if expansions.
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@c
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@ifclear CONLY
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@ifclear HPPA
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@node Breakpoints, Continuing and Stepping, Stopping, Stopping
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@section Breakpoints, watchpoints, and exceptions
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@end ifclear
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@ifset HPPA
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@node Breakpoints, Continuing and Stepping, Stopping, Stopping
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@node Breakpoints, Continuing and Stepping, Stopping, Stopping
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@section Breakpoints, watchpoints, and catchpoints
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@section Breakpoints, watchpoints, and catchpoints
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@end ifset
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@end ifclear
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@ifset CONLY
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@node Breakpoints, Continuing and Stepping, Stopping, Stopping
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@section Breakpoints and watchpoints
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@end ifset
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@cindex breakpoints
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@cindex breakpoints
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A @dfn{breakpoint} makes your program stop whenever a certain point in
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A @dfn{breakpoint} makes your program stop whenever a certain point in
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@ -2623,20 +2565,18 @@ your program should stop by line number, function name or exact address
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in the program.
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in the program.
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@ifclear CONLY
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@ifclear CONLY
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@ifclear HPPA
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@ifclear HPPA
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In languages with exception handling (such as @sc{gnu} C++), you can also set
|
In languages with exception handling (such as @sc{gnu} C++), you can
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breakpoints where an exception is raised (@pxref{Exception Handling,,
|
also set catchpoints where an exception is raised (@pxref{Set
|
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Breakpoints and exceptions}).
|
Catchpoints, , Setting catchpoints}).
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@end ifclear
|
@end ifclear
|
||||||
@end ifclear
|
@end ifclear
|
||||||
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||||||
In HP-UX, SunOS 4.x, SVR4, and Alpha OSF/1 configurations, you can set
|
In HP-UX, SunOS 4.x, SVR4, and Alpha OSF/1 configurations, you can set
|
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breakpoints in shared libraries before the executable is run.
|
breakpoints in shared libraries before the executable is run.
|
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@ifset HPPA
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There is a minor limitation on HP-UX systems: you must wait until the
|
There is a minor limitation on HP-UX systems: you must wait until the
|
||||||
executable is run in order to set breakpoints in shared library routines
|
executable is run in order to set breakpoints in shared library routines
|
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that are not called directly by the program (for example, routines that
|
that are not called directly by the program (for example, routines that
|
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are arguments in a @code{pthread_create} call).
|
are arguments in a @code{pthread_create} call).
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@end ifset
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@cindex watchpoints
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@cindex watchpoints
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@cindex memory tracing
|
@cindex memory tracing
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@ -2665,33 +2605,18 @@ other breakpoint. (To stop when your program receives a signal, use the
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||||||
|
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||||||
@cindex breakpoint numbers
|
@cindex breakpoint numbers
|
||||||
@cindex numbers for breakpoints
|
@cindex numbers for breakpoints
|
||||||
@ifclear HPPA
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|
||||||
@value{GDBN} assigns a number to each breakpoint or watchpoint when you
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||||||
@end ifclear
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@ifset HPPA
|
|
||||||
@value{GDBN} assigns a number to each breakpoint, watchpoint, or
|
@value{GDBN} assigns a number to each breakpoint, watchpoint, or
|
||||||
catchpoint when you
|
catchpoint when you create it; these numbers are successive integers
|
||||||
@end ifset
|
starting with one. In many of the commands for controlling various
|
||||||
create it; these numbers are successive integers starting with one. In
|
features of breakpoints you use the breakpoint number to say which
|
||||||
many of the commands for controlling various features of breakpoints you
|
breakpoint you want to change. Each breakpoint may be @dfn{enabled} or
|
||||||
use the breakpoint number to say which breakpoint you want to change.
|
@dfn{disabled}; if disabled, it has no effect on your program until you
|
||||||
Each breakpoint may be @dfn{enabled} or @dfn{disabled}; if disabled, it has
|
enable it again.
|
||||||
no effect on your program until you enable it again.
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|
||||||
|
|
||||||
@menu
|
@menu
|
||||||
* Set Breaks:: Setting breakpoints
|
* Set Breaks:: Setting breakpoints
|
||||||
* Set Watchpoints:: Setting watchpoints
|
* Set Watchpoints:: Setting watchpoints
|
||||||
@ifclear CONLY
|
|
||||||
@ifclear HPPA
|
|
||||||
* Exception Handling:: Breakpoints and exceptions
|
|
||||||
@end ifclear
|
|
||||||
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|
||||||
@ifset HPPA
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||||||
* Set Catchpoints:: Setting catchpoints
|
* Set Catchpoints:: Setting catchpoints
|
||||||
@end ifset
|
|
||||||
|
|
||||||
@end ifclear
|
|
||||||
|
|
||||||
* Delete Breaks:: Deleting breakpoints
|
* Delete Breaks:: Deleting breakpoints
|
||||||
* Disabling:: Disabling breakpoints
|
* Disabling:: Disabling breakpoints
|
||||||
* Conditions:: Break conditions
|
* Conditions:: Break conditions
|
||||||
|
@ -2843,24 +2768,13 @@ classes.
|
||||||
@item info breakpoints @r{[}@var{n}@r{]}
|
@item info breakpoints @r{[}@var{n}@r{]}
|
||||||
@itemx info break @r{[}@var{n}@r{]}
|
@itemx info break @r{[}@var{n}@r{]}
|
||||||
@itemx info watchpoints @r{[}@var{n}@r{]}
|
@itemx info watchpoints @r{[}@var{n}@r{]}
|
||||||
@ifclear HPPA
|
|
||||||
Print a table of all breakpoints and watchpoints set and not
|
|
||||||
deleted, with the following columns for each breakpoint:
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
Print a table of all breakpoints, watchpoints, and catchpoints set and
|
Print a table of all breakpoints, watchpoints, and catchpoints set and
|
||||||
not deleted, with the following columns for each breakpoint:
|
not deleted, with the following columns for each breakpoint:
|
||||||
@end ifset
|
|
||||||
|
|
||||||
@table @emph
|
@table @emph
|
||||||
@item Breakpoint Numbers
|
@item Breakpoint Numbers
|
||||||
@item Type
|
@item Type
|
||||||
@ifclear HPPA
|
|
||||||
Breakpoint or watchpoint.
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
Breakpoint, watchpoint, or catchpoint.
|
Breakpoint, watchpoint, or catchpoint.
|
||||||
@end ifset
|
|
||||||
@item Disposition
|
@item Disposition
|
||||||
Whether the breakpoint is marked to be disabled or deleted when hit.
|
Whether the breakpoint is marked to be disabled or deleted when hit.
|
||||||
@item Enabled or Disabled
|
@item Enabled or Disabled
|
||||||
|
@ -2946,19 +2860,13 @@ Shared library events.
|
||||||
@end table
|
@end table
|
||||||
|
|
||||||
|
|
||||||
@ifclear HPPA
|
|
||||||
@node Set Watchpoints, Exception Handling, Set Breaks, Breakpoints
|
|
||||||
@subsection Setting watchpoints
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
@node Set Watchpoints, Set Catchpoints, Set Breaks, Breakpoints
|
@node Set Watchpoints, Set Catchpoints, Set Breaks, Breakpoints
|
||||||
@subsection Setting watchpoints
|
@subsection Setting watchpoints
|
||||||
@end ifset
|
|
||||||
@cindex setting watchpoints
|
|
||||||
|
|
||||||
|
@cindex setting watchpoints
|
||||||
You can use a watchpoint to stop execution whenever the value of an
|
You can use a watchpoint to stop execution whenever the value of an
|
||||||
expression changes, without having to predict a particular place
|
expression changes, without having to predict a particular place where
|
||||||
where this may happen.
|
this may happen.
|
||||||
|
|
||||||
@ifclear HPPA
|
@ifclear HPPA
|
||||||
Watchpoints currently execute two orders of magnitude more slowly than
|
Watchpoints currently execute two orders of magnitude more slowly than
|
||||||
|
@ -3006,14 +2914,8 @@ by the program. If you use both watchpoints, both must be set with the
|
||||||
|
|
||||||
@kindex info watchpoints
|
@kindex info watchpoints
|
||||||
@item info watchpoints
|
@item info watchpoints
|
||||||
@ifclear HPPA
|
|
||||||
This command prints a list of watchpoints and breakpoints; it is the
|
|
||||||
same as @code{info break}.
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
This command prints a list of watchpoints, breakpoints, and catchpoints;
|
This command prints a list of watchpoints, breakpoints, and catchpoints;
|
||||||
it is the same as @code{info break}.
|
it is the same as @code{info break}.
|
||||||
@end ifset
|
|
||||||
@end table
|
@end table
|
||||||
|
|
||||||
@ifset HPPA
|
@ifset HPPA
|
||||||
|
@ -3066,78 +2968,6 @@ watch an expression in all threads.)
|
||||||
@end quotation
|
@end quotation
|
||||||
@end ifclear
|
@end ifclear
|
||||||
|
|
||||||
@ifclear CONLY
|
|
||||||
@ifclear HPPA
|
|
||||||
@node Exception Handling, Delete Breaks, Set Watchpoints, Breakpoints
|
|
||||||
@subsection Breakpoints and exceptions
|
|
||||||
@cindex exception handlers
|
|
||||||
|
|
||||||
Some languages, such as @sc{gnu} C++, implement exception handling. You can
|
|
||||||
use @value{GDBN} to examine what caused your program to raise an exception,
|
|
||||||
and to list the exceptions your program is prepared to handle at a
|
|
||||||
given point in time.
|
|
||||||
|
|
||||||
@table @code
|
|
||||||
@kindex catch
|
|
||||||
@item catch @var{exceptions}
|
|
||||||
You can set breakpoints at active exception handlers by using the
|
|
||||||
@code{catch} command. @var{exceptions} is a list of names of exceptions
|
|
||||||
to catch.
|
|
||||||
@end table
|
|
||||||
|
|
||||||
You can use @code{info catch} to list active exception handlers.
|
|
||||||
@xref{Frame Info, ,Information about a frame}.
|
|
||||||
|
|
||||||
There are currently some limitations to exception handling in @value{GDBN}:
|
|
||||||
|
|
||||||
@itemize @bullet
|
|
||||||
@item
|
|
||||||
If you call a function interactively, @value{GDBN} normally returns
|
|
||||||
control to you when the function has finished executing. If the call
|
|
||||||
raises an exception, however, the call may bypass the mechanism that
|
|
||||||
returns control to you and cause your program to simply continue
|
|
||||||
running until it hits a breakpoint, catches a signal that @value{GDBN} is
|
|
||||||
listening for, or exits.
|
|
||||||
|
|
||||||
@item
|
|
||||||
You cannot raise an exception interactively.
|
|
||||||
|
|
||||||
@item
|
|
||||||
You cannot install an exception handler interactively.
|
|
||||||
@end itemize
|
|
||||||
|
|
||||||
@cindex raise exceptions
|
|
||||||
Sometimes @code{catch} is not the best way to debug exception handling:
|
|
||||||
if you need to know exactly where an exception is raised, it is better to
|
|
||||||
stop @emph{before} the exception handler is called, since that way you
|
|
||||||
can see the stack before any unwinding takes place. If you set a
|
|
||||||
breakpoint in an exception handler instead, it may not be easy to find
|
|
||||||
out where the exception was raised.
|
|
||||||
|
|
||||||
To stop just before an exception handler is called, you need some
|
|
||||||
knowledge of the implementation. In the case of @sc{gnu} C++, exceptions are
|
|
||||||
raised by calling a library function named @code{__raise_exception}
|
|
||||||
which has the following ANSI C interface:
|
|
||||||
|
|
||||||
@example
|
|
||||||
/* @var{addr} is where the exception identifier is stored.
|
|
||||||
ID is the exception identifier. */
|
|
||||||
void __raise_exception (void **@var{addr}, void *@var{id});
|
|
||||||
@end example
|
|
||||||
|
|
||||||
@noindent
|
|
||||||
To make the debugger catch all exceptions before any stack
|
|
||||||
unwinding takes place, set a breakpoint on @code{__raise_exception}
|
|
||||||
(@pxref{Breakpoints, ,Breakpoints; watchpoints; and exceptions}).
|
|
||||||
|
|
||||||
With a conditional breakpoint (@pxref{Conditions, ,Break conditions})
|
|
||||||
that depends on the value of @var{id}, you can stop your program when
|
|
||||||
a specific exception is raised. You can use multiple conditional
|
|
||||||
breakpoints to stop your program when any of a number of exceptions are
|
|
||||||
raised.
|
|
||||||
@end ifclear
|
|
||||||
|
|
||||||
@ifset HPPA
|
|
||||||
@node Set Catchpoints, Delete Breaks, Set Watchpoints, Breakpoints
|
@node Set Catchpoints, Delete Breaks, Set Watchpoints, Breakpoints
|
||||||
@subsection Setting catchpoints
|
@subsection Setting catchpoints
|
||||||
@cindex catchpoints
|
@cindex catchpoints
|
||||||
|
@ -3214,37 +3044,52 @@ You cannot raise an exception interactively.
|
||||||
@item
|
@item
|
||||||
You cannot install an exception handler interactively.
|
You cannot install an exception handler interactively.
|
||||||
@end itemize
|
@end itemize
|
||||||
@end ifset
|
|
||||||
@end ifclear
|
@cindex raise exceptions
|
||||||
|
Sometimes @code{catch} is not the best way to debug exception handling:
|
||||||
|
if you need to know exactly where an exception is raised, it is better to
|
||||||
|
stop @emph{before} the exception handler is called, since that way you
|
||||||
|
can see the stack before any unwinding takes place. If you set a
|
||||||
|
breakpoint in an exception handler instead, it may not be easy to find
|
||||||
|
out where the exception was raised.
|
||||||
|
|
||||||
|
To stop just before an exception handler is called, you need some
|
||||||
|
knowledge of the implementation. In the case of @sc{gnu} C++, exceptions are
|
||||||
|
raised by calling a library function named @code{__raise_exception}
|
||||||
|
which has the following ANSI C interface:
|
||||||
|
|
||||||
|
@example
|
||||||
|
/* @var{addr} is where the exception identifier is stored.
|
||||||
|
ID is the exception identifier. */
|
||||||
|
void __raise_exception (void **@var{addr}, void *@var{id});
|
||||||
|
@end example
|
||||||
|
|
||||||
|
@noindent
|
||||||
|
To make the debugger catch all exceptions before any stack
|
||||||
|
unwinding takes place, set a breakpoint on @code{__raise_exception}
|
||||||
|
(@pxref{Breakpoints, ,Breakpoints; watchpoints; and exceptions}).
|
||||||
|
|
||||||
|
With a conditional breakpoint (@pxref{Conditions, ,Break conditions})
|
||||||
|
that depends on the value of @var{id}, you can stop your program when
|
||||||
|
a specific exception is raised. You can use multiple conditional
|
||||||
|
breakpoints to stop your program when any of a number of exceptions are
|
||||||
|
raised.
|
||||||
|
|
||||||
|
|
||||||
@node Delete Breaks, Disabling, Set Catchpoints, Breakpoints
|
@node Delete Breaks, Disabling, Set Catchpoints, Breakpoints
|
||||||
@subsection Deleting breakpoints
|
@subsection Deleting breakpoints
|
||||||
|
|
||||||
@ifclear HPPA
|
|
||||||
@cindex clearing breakpoints, watchpoints
|
|
||||||
@cindex deleting breakpoints, watchpoints
|
|
||||||
It is often necessary to eliminate a breakpoint or watchpoint once it
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
@cindex clearing breakpoints, watchpoints, catchpoints
|
@cindex clearing breakpoints, watchpoints, catchpoints
|
||||||
@cindex deleting breakpoints, watchpoints, catchpoints
|
@cindex deleting breakpoints, watchpoints, catchpoints
|
||||||
It is often necessary to eliminate a breakpoint, watchpoint, or
|
It is often necessary to eliminate a breakpoint, watchpoint, or
|
||||||
catchpoint once it
|
catchpoint once it has done its job and you no longer want your program
|
||||||
@end ifset
|
to stop there. This is called @dfn{deleting} the breakpoint. A
|
||||||
has done its job and you no longer want your program to stop there. This
|
breakpoint that has been deleted no longer exists; it is forgotten.
|
||||||
is called @dfn{deleting} the breakpoint. A breakpoint that has been
|
|
||||||
deleted no longer exists; it is forgotten.
|
|
||||||
|
|
||||||
With the @code{clear} command you can delete breakpoints according to
|
With the @code{clear} command you can delete breakpoints according to
|
||||||
where they are in your program. With the @code{delete} command you can
|
where they are in your program. With the @code{delete} command you can
|
||||||
@ifclear HPPA
|
|
||||||
delete individual breakpoints or watchpoints by specifying their
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
delete individual breakpoints, watchpoints, or catchpoints by specifying
|
delete individual breakpoints, watchpoints, or catchpoints by specifying
|
||||||
their
|
their breakpoint numbers.
|
||||||
@end ifset
|
|
||||||
breakpoint numbers.
|
|
||||||
|
|
||||||
It is not necessary to delete a breakpoint to proceed past it. @value{GDBN}
|
It is not necessary to delete a breakpoint to proceed past it. @value{GDBN}
|
||||||
automatically ignores breakpoints on the first instruction to be executed
|
automatically ignores breakpoints on the first instruction to be executed
|
||||||
|
@ -3270,16 +3115,10 @@ Delete any breakpoints set at or within the code of the specified line.
|
||||||
@kindex delete
|
@kindex delete
|
||||||
@kindex d
|
@kindex d
|
||||||
@item delete @r{[}breakpoints@r{]} @r{[}@var{bnums}@dots{}@r{]}
|
@item delete @r{[}breakpoints@r{]} @r{[}@var{bnums}@dots{}@r{]}
|
||||||
@ifclear HPPA
|
|
||||||
Delete the breakpoints or watchpoints of the numbers specified as
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
Delete the breakpoints, watchpoints, or catchpoints of the numbers
|
Delete the breakpoints, watchpoints, or catchpoints of the numbers
|
||||||
specified as
|
specified as arguments. If no argument is specified, delete all
|
||||||
@end ifset
|
breakpoints (@value{GDBN} asks confirmation, unless you have @code{set
|
||||||
arguments. If no argument is specified, delete all breakpoints (@value{GDBN}
|
confirm off}). You can abbreviate this command as @code{d}.
|
||||||
asks confirmation, unless you have @code{set confirm off}). You
|
|
||||||
can abbreviate this command as @code{d}.
|
|
||||||
@end table
|
@end table
|
||||||
|
|
||||||
@node Disabling, Conditions, Delete Breaks, Breakpoints
|
@node Disabling, Conditions, Delete Breaks, Breakpoints
|
||||||
|
@ -3287,43 +3126,19 @@ can abbreviate this command as @code{d}.
|
||||||
|
|
||||||
@kindex disable breakpoints
|
@kindex disable breakpoints
|
||||||
@kindex enable breakpoints
|
@kindex enable breakpoints
|
||||||
@ifclear HPPA
|
|
||||||
Rather than deleting a breakpoint or watchpoint, you might prefer to
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
Rather than deleting a breakpoint, watchpoint, or catchpoint, you might
|
Rather than deleting a breakpoint, watchpoint, or catchpoint, you might
|
||||||
prefer to
|
prefer to @dfn{disable} it. This makes the breakpoint inoperative as if
|
||||||
@end ifset
|
it had been deleted, but remembers the information on the breakpoint so
|
||||||
@dfn{disable} it. This makes the breakpoint inoperative as if it had
|
that you can @dfn{enable} it again later.
|
||||||
been deleted, but remembers the information on the breakpoint so that
|
|
||||||
you can @dfn{enable} it again later.
|
|
||||||
|
|
||||||
@ifclear HPPA
|
|
||||||
You disable and enable breakpoints and watchpoints with the
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
You disable and enable breakpoints, watchpoints, and catchpoints with
|
You disable and enable breakpoints, watchpoints, and catchpoints with
|
||||||
the
|
the @code{enable} and @code{disable} commands, optionally specifying one
|
||||||
@end ifset
|
or more breakpoint numbers as arguments. Use @code{info break} or
|
||||||
@code{enable} and @code{disable} commands, optionally specifying one or
|
|
||||||
more breakpoint numbers as arguments. Use @code{info break} or
|
|
||||||
@ifclear HPPA
|
|
||||||
@code{info watch} to print a list of breakpoints or watchpoints if you
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
@code{info watch} to print a list of breakpoints, watchpoints, and
|
@code{info watch} to print a list of breakpoints, watchpoints, and
|
||||||
catchpoints if you
|
catchpoints if you do not know which numbers to use.
|
||||||
@end ifset
|
|
||||||
do not know which numbers to use.
|
|
||||||
|
|
||||||
@ifclear HPPA
|
|
||||||
A breakpoint or watchpoint can have any of four different states of
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
A breakpoint, watchpoint, or catchpoint can have any of four different
|
A breakpoint, watchpoint, or catchpoint can have any of four different
|
||||||
states of
|
states of enablement:
|
||||||
@end ifset
|
|
||||||
enablement:
|
|
||||||
|
|
||||||
@itemize @bullet
|
@itemize @bullet
|
||||||
@item
|
@item
|
||||||
|
@ -3340,14 +3155,8 @@ Enabled for deletion. The breakpoint stops your program, but
|
||||||
immediately after it does so it is deleted permanently.
|
immediately after it does so it is deleted permanently.
|
||||||
@end itemize
|
@end itemize
|
||||||
|
|
||||||
@ifclear HPPA
|
|
||||||
You can use the following commands to enable or disable breakpoints and
|
|
||||||
watchpoints:
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
You can use the following commands to enable or disable breakpoints,
|
You can use the following commands to enable or disable breakpoints,
|
||||||
watchpoints, and catchpoints:
|
watchpoints, and catchpoints:
|
||||||
@end ifset
|
|
||||||
|
|
||||||
@table @code
|
@table @code
|
||||||
@kindex disable breakpoints
|
@kindex disable breakpoints
|
||||||
|
@ -3441,20 +3250,13 @@ catchpoint.
|
||||||
@table @code
|
@table @code
|
||||||
@kindex condition
|
@kindex condition
|
||||||
@item condition @var{bnum} @var{expression}
|
@item condition @var{bnum} @var{expression}
|
||||||
@ifclear HPPA
|
|
||||||
Specify @var{expression} as the break condition for breakpoint or
|
|
||||||
watchpoint number @var{bnum}. After you set a condition, breakpoint
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
Specify @var{expression} as the break condition for breakpoint,
|
Specify @var{expression} as the break condition for breakpoint,
|
||||||
watchpoint, or catchpoint number @var{bnum}. After you set a condition,
|
watchpoint, or catchpoint number @var{bnum}. After you set a condition,
|
||||||
breakpoint
|
breakpoint @var{bnum} stops your program only if the value of
|
||||||
@end ifset
|
@var{expression} is true (nonzero, in C). When you use
|
||||||
@var{bnum} stops your program only if the value of @var{expression} is
|
@code{condition}, @value{GDBN} checks @var{expression} immediately for
|
||||||
true (nonzero, in C). When you use @code{condition}, @value{GDBN}
|
syntactic correctness, and to determine whether symbols in it have
|
||||||
checks @var{expression} immediately for syntactic correctness, and to
|
referents in the context of your breakpoint.
|
||||||
determine whether symbols in it have referents in the context of your
|
|
||||||
breakpoint.
|
|
||||||
@c FIXME so what does GDB do if there is no referent? Moreover, what
|
@c FIXME so what does GDB do if there is no referent? Moreover, what
|
||||||
@c about watchpoints?
|
@c about watchpoints?
|
||||||
@value{GDBN} does
|
@value{GDBN} does
|
||||||
|
@ -3504,25 +3306,17 @@ is decremented each time. @xref{Convenience Vars, ,Convenience
|
||||||
variables}.
|
variables}.
|
||||||
@end table
|
@end table
|
||||||
|
|
||||||
@ifset HPPA
|
|
||||||
Ignore counts apply to breakpoints, watchpoints, and catchpoints.
|
Ignore counts apply to breakpoints, watchpoints, and catchpoints.
|
||||||
@end ifset
|
|
||||||
|
|
||||||
|
|
||||||
@node Break Commands, Breakpoint Menus, Conditions, Breakpoints
|
@node Break Commands, Breakpoint Menus, Conditions, Breakpoints
|
||||||
@subsection Breakpoint command lists
|
@subsection Breakpoint command lists
|
||||||
|
|
||||||
@cindex breakpoint commands
|
@cindex breakpoint commands
|
||||||
@ifclear HPPA
|
|
||||||
You can give any breakpoint (or watchpoint) a series of commands to
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
You can give any breakpoint (or watchpoint or catchpoint) a series of
|
You can give any breakpoint (or watchpoint or catchpoint) a series of
|
||||||
commands to
|
commands to execute when your program stops due to that breakpoint. For
|
||||||
@end ifset
|
example, you might want to print the values of certain expressions, or
|
||||||
execute when your program stops due to that breakpoint. For example, you
|
enable other breakpoints.
|
||||||
might want to print the values of certain expressions, or enable other
|
|
||||||
breakpoints.
|
|
||||||
|
|
||||||
@table @code
|
@table @code
|
||||||
@kindex commands
|
@kindex commands
|
||||||
|
@ -3538,14 +3332,8 @@ To remove all commands from a breakpoint, type @code{commands} and
|
||||||
follow it immediately with @code{end}; that is, give no commands.
|
follow it immediately with @code{end}; that is, give no commands.
|
||||||
|
|
||||||
With no @var{bnum} argument, @code{commands} refers to the last
|
With no @var{bnum} argument, @code{commands} refers to the last
|
||||||
@ifclear HPPA
|
|
||||||
breakpoint or watchpoint set (not to the breakpoint most recently
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
breakpoint, watchpoint, or catchpoint set (not to the breakpoint most
|
breakpoint, watchpoint, or catchpoint set (not to the breakpoint most
|
||||||
recently
|
recently encountered).
|
||||||
@end ifset
|
|
||||||
encountered).
|
|
||||||
@end table
|
@end table
|
||||||
|
|
||||||
Pressing @key{RET} as a means of repeating the last @value{GDBN} command is
|
Pressing @key{RET} as a means of repeating the last @value{GDBN} command is
|
||||||
|
@ -3728,22 +3516,11 @@ calling function; or @code{jump} (@pxref{Jumping, ,Continuing at a
|
||||||
different address}) to go to an arbitrary location in your program.
|
different address}) to go to an arbitrary location in your program.
|
||||||
|
|
||||||
A typical technique for using stepping is to set a breakpoint
|
A typical technique for using stepping is to set a breakpoint
|
||||||
@ifclear CONLY
|
(@pxref{Breakpoints, ,Breakpoints; watchpoints; and catchpoints}) at the
|
||||||
@ifclear HPPA
|
beginning of the function or the section of your program where a problem
|
||||||
(@pxref{Breakpoints, ,Breakpoints; watchpoints; and exceptions})
|
is believed to lie, run your program until it stops at that breakpoint,
|
||||||
@end ifclear
|
and then step through the suspect area, examining the variables that are
|
||||||
@ifset HPPA
|
interesting, until you see the problem happen.
|
||||||
(@pxref{Breakpoints, ,Breakpoints; watchpoints; and catchpoints})
|
|
||||||
@end ifset
|
|
||||||
@end ifclear
|
|
||||||
@ifset CONLY
|
|
||||||
(@pxref{Breakpoints, ,Breakpoints and watchpoints})
|
|
||||||
@end ifset
|
|
||||||
at the
|
|
||||||
beginning of the function or the section of your program where a
|
|
||||||
problem is believed to lie, run your program until it stops at that
|
|
||||||
breakpoint, and then step through the suspect area, examining the
|
|
||||||
variables that are interesting, until you see the problem happen.
|
|
||||||
|
|
||||||
@table @code
|
@table @code
|
||||||
@kindex step
|
@kindex step
|
||||||
|
@ -4395,7 +4172,7 @@ Print a list of all the exception handlers that are active in the
|
||||||
current stack frame at the current point of execution. To see other
|
current stack frame at the current point of execution. To see other
|
||||||
exception handlers, visit the associated frame (using the @code{up},
|
exception handlers, visit the associated frame (using the @code{up},
|
||||||
@code{down}, or @code{frame} commands); then type @code{info catch}.
|
@code{down}, or @code{frame} commands); then type @code{info catch}.
|
||||||
@xref{Exception Handling, ,Breakpoints and exceptions}.
|
@xref{Set Catchpoints, , Setting catchpoints}.
|
||||||
@end ifclear
|
@end ifclear
|
||||||
@end ifclear
|
@end ifclear
|
||||||
@end table
|
@end table
|
||||||
|
@ -4746,27 +4523,23 @@ surrounding this value. Two arguments specify a range of addresses
|
||||||
@end table
|
@end table
|
||||||
|
|
||||||
@ifclear H8EXCLUSIVE
|
@ifclear H8EXCLUSIVE
|
||||||
@ifclear HPPA
|
The following example shows the disassembly of a range of addresses of
|
||||||
We can use @code{disassemble} to inspect the object code
|
HP PA-RISC 2.0 code:
|
||||||
range shown in the last @code{info line} example (the example
|
|
||||||
shows SPARC machine instructions):
|
|
||||||
|
|
||||||
|
|
||||||
@smallexample
|
@smallexample
|
||||||
(@value{GDBP}) disas 0x63e4 0x6404
|
(@value{GDBP}) disas 0x32c4 0x32e4
|
||||||
Dump of assembler code from 0x63e4 to 0x6404:
|
Dump of assembler code from 0x32c4 to 0x32e4:
|
||||||
0x63e4 <builtin_init+5340>: ble 0x63f8 <builtin_init+5360>
|
0x32c4 <main+204>: addil 0,dp
|
||||||
0x63e8 <builtin_init+5344>: sethi %hi(0x4c00), %o0
|
0x32c8 <main+208>: ldw 0x22c(sr0,r1),r26
|
||||||
0x63ec <builtin_init+5348>: ld [%i1+4], %o0
|
0x32cc <main+212>: ldil 0x3000,r31
|
||||||
0x63f0 <builtin_init+5352>: b 0x63fc <builtin_init+5364>
|
0x32d0 <main+216>: ble 0x3f8(sr4,r31)
|
||||||
0x63f4 <builtin_init+5356>: ld [%o0+4], %o0
|
0x32d4 <main+220>: ldo 0(r31),rp
|
||||||
0x63f8 <builtin_init+5360>: or %o0, 0x1a4, %o0
|
0x32d8 <main+224>: addil -0x800,dp
|
||||||
0x63fc <builtin_init+5364>: call 0x9288 <path_search>
|
0x32dc <main+228>: ldo 0x588(r1),r26
|
||||||
0x6400 <builtin_init+5368>: nop
|
0x32e0 <main+232>: ldil 0x3000,r31
|
||||||
End of assembler dump.
|
End of assembler dump.
|
||||||
@end smallexample
|
@end smallexample
|
||||||
@end ifclear
|
@end ifclear
|
||||||
@end ifclear
|
|
||||||
|
|
||||||
@ifset H8EXCLUSIVE
|
@ifset H8EXCLUSIVE
|
||||||
For example, here is the beginning of the output for the
|
For example, here is the beginning of the output for the
|
||||||
|
@ -4805,25 +4578,6 @@ to either @code{i386} or @code{i8086}. The default is @code{i386}.
|
||||||
@end table
|
@end table
|
||||||
|
|
||||||
|
|
||||||
@ifset HPPA
|
|
||||||
The following example shows the disassembly of a range of addresses of
|
|
||||||
HP PA-RISC 2.0 code:
|
|
||||||
|
|
||||||
@smallexample
|
|
||||||
(@value{GDBP}) disas 0x32c4 0x32e4
|
|
||||||
Dump of assembler code from 0x32c4 to 0x32e4:
|
|
||||||
0x32c4 <main+204>: addil 0,dp
|
|
||||||
0x32c8 <main+208>: ldw 0x22c(sr0,r1),r26
|
|
||||||
0x32cc <main+212>: ldil 0x3000,r31
|
|
||||||
0x32d0 <main+216>: ble 0x3f8(sr4,r31)
|
|
||||||
0x32d4 <main+220>: ldo 0(r31),rp
|
|
||||||
0x32d8 <main+224>: addil -0x800,dp
|
|
||||||
0x32dc <main+228>: ldo 0x588(r1),r26
|
|
||||||
0x32e0 <main+232>: ldil 0x3000,r31
|
|
||||||
End of assembler dump.
|
|
||||||
@end smallexample
|
|
||||||
@end ifset
|
|
||||||
|
|
||||||
@node Data, Languages, Source, Top
|
@node Data, Languages, Source, Top
|
||||||
@chapter Examining Data
|
@chapter Examining Data
|
||||||
|
|
||||||
|
@ -5680,10 +5434,8 @@ Decode based on the @sc{gnu} C++ compiler (@code{g++}) encoding algorithm.
|
||||||
This is the default.
|
This is the default.
|
||||||
@end ifclear
|
@end ifclear
|
||||||
|
|
||||||
@ifset HPPA
|
|
||||||
@item hp
|
@item hp
|
||||||
Decode based on the HP ANSI C++ (@code{aCC}) encoding algorithm.
|
Decode based on the HP ANSI C++ (@code{aCC}) encoding algorithm.
|
||||||
@end ifset
|
|
||||||
|
|
||||||
@item lucid
|
@item lucid
|
||||||
Decode based on the Lucid C++ compiler (@code{lcc}) encoding algorithm.
|
Decode based on the Lucid C++ compiler (@code{lcc}) encoding algorithm.
|
||||||
|
@ -7039,20 +6791,11 @@ breakpoints on overloaded functions that are not members of any special
|
||||||
classes.
|
classes.
|
||||||
@xref{Set Breaks, ,Setting breakpoints}.
|
@xref{Set Breaks, ,Setting breakpoints}.
|
||||||
|
|
||||||
@ifclear HPPA
|
|
||||||
@cindex C++ exception handling
|
|
||||||
@item catch @var{exceptions}
|
|
||||||
@itemx info catch
|
|
||||||
Debug C++ exception handling using these commands. @xref{Exception
|
|
||||||
Handling, ,Breakpoints and exceptions}.
|
|
||||||
@end ifclear
|
|
||||||
@ifset HPPA
|
|
||||||
@cindex C++ exception handling
|
@cindex C++ exception handling
|
||||||
@item catch throw
|
@item catch throw
|
||||||
@itemx catch catch
|
@itemx catch catch
|
||||||
Debug C++ exception handling using these commands. @xref{Set
|
Debug C++ exception handling using these commands. @xref{Set
|
||||||
Catchpoints, ,Setting catchpoints}.
|
Catchpoints, , Setting catchpoints}.
|
||||||
@end ifset
|
|
||||||
|
|
||||||
@cindex inheritance
|
@cindex inheritance
|
||||||
@item ptype @var{typename}
|
@item ptype @var{typename}
|
||||||
|
@ -7946,11 +7689,9 @@ an address of your own choosing, with the following commands:
|
||||||
Resume execution at line @var{linespec}. Execution stops again
|
Resume execution at line @var{linespec}. Execution stops again
|
||||||
immediately if there is a breakpoint there. @xref{List, ,Printing
|
immediately if there is a breakpoint there. @xref{List, ,Printing
|
||||||
source lines}, for a description of the different forms of
|
source lines}, for a description of the different forms of
|
||||||
@var{linespec}.
|
@var{linespec}. It is common practice to use the @code{tbreak} command
|
||||||
@ifset HPPA
|
in conjunction with @code{jump}. @xref{Set Breaks, ,Setting
|
||||||
It is common practice to use the @code{tbreak} command in conjunction
|
breakpoints}.
|
||||||
with @code{jump}. @xref{Set Breaks, ,Setting breakpoints}.
|
|
||||||
@end ifset
|
|
||||||
|
|
||||||
The @code{jump} command does not change the current stack frame, or
|
The @code{jump} command does not change the current stack frame, or
|
||||||
the stack pointer, or the contents of any memory location or any
|
the stack pointer, or the contents of any memory location or any
|
||||||
|
@ -9789,7 +9530,9 @@ development tools that Energize integrates with @value{GDBN}.
|
||||||
|
|
||||||
@end ifset
|
@end ifset
|
||||||
|
|
||||||
@node GDB Bugs, Command Line Editing, Emacs, Top
|
@node GDB Bugs
|
||||||
|
@c links whacked to pacify makeinfo
|
||||||
|
@c , Command Line Editing, Emacs, Top
|
||||||
@chapter Reporting Bugs in @value{GDBN}
|
@chapter Reporting Bugs in @value{GDBN}
|
||||||
@cindex bugs in @value{GDBN}
|
@cindex bugs in @value{GDBN}
|
||||||
@cindex reporting bugs in @value{GDBN}
|
@cindex reporting bugs in @value{GDBN}
|
||||||
|
@ -10175,7 +9918,9 @@ unset &&\rm(No longer an alias for delete)\cr
|
||||||
|
|
||||||
@ifclear PRECONFIGURED
|
@ifclear PRECONFIGURED
|
||||||
@ifclear HPPA
|
@ifclear HPPA
|
||||||
@node Formatting Documentation, Installing GDB, Renamed Commands, Top
|
@node Formatting Documentation
|
||||||
|
@c links whacked to pacify makeinfo
|
||||||
|
@c , Installing GDB, Renamed Commands, Top
|
||||||
@appendix Formatting Documentation
|
@appendix Formatting Documentation
|
||||||
|
|
||||||
@cindex @value{GDBN} reference card
|
@cindex @value{GDBN} reference card
|
||||||
|
|
Loading…
Reference in New Issue