forked from Imagelibrary/binutils-gdb
* arch-utils.c (default_remote_breakpoint_from_pc): New function.
* arch-utils.h (default_remote_breakpoint_from_pc): Declare. * gdbarch.c, gdbarch.h: Regenerated. * gdbarch.sh (remote_breakpoint_from_pc): New architecture method. * remote.c (remote_insert_breakpoint, remote_insert_hw_breakpoint): Use gdbarch_remote_breakpoint_from_pc. doc/ * gdb.texinfo (Architecture-Specific Protocol Details): New section. Document ARM breakpoint types. (Register Packet Format): Move into the new section. (Packets): Describe the KIND argument for Z0, z0, Z1, and z1 packets.
This commit is contained in:
Daniel Jacobowitz
@@ -1,3 +1,10 @@
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2010-02-01 Daniel Jacobowitz <dan@codesourcery.com>
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* gdb.texinfo (Architecture-Specific Protocol Details): New section.
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Document ARM breakpoint types.
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(Register Packet Format): Move into the new section.
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(Packets): Describe the KIND argument for Z0, z0, Z1, and z1 packets.
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2010-01-21 Joel Brobecker <brobecker@adacore.com>
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* gdb.texinfo (File Options): Adjust the documentation of this
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@@ -28422,7 +28422,7 @@ Show the current setting of the target wait timeout.
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* Packets::
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* Stop Reply Packets::
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* General Query Packets::
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* Register Packet Format::
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* Architecture-Specific Protocol Details::
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* Tracepoint Packets::
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* Host I/O Packets::
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* Interrupts::
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@@ -29169,14 +29169,13 @@ for success
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for an error
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@end table
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@item z @var{type},@var{addr},@var{length}
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@itemx Z @var{type},@var{addr},@var{length}
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@item z @var{type},@var{addr},@var{kind}
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@itemx Z @var{type},@var{addr},@var{kind}
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@anchor{insert breakpoint or watchpoint packet}
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@cindex @samp{z} packet
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@cindex @samp{Z} packets
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Insert (@samp{Z}) or remove (@samp{z}) a @var{type} breakpoint or
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watchpoint starting at address @var{address} and covering the next
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@var{length} bytes.
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watchpoint starting at address @var{address} of kind @var{kind}.
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Each breakpoint and watchpoint packet @var{type} is documented
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separately.
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@@ -29188,18 +29187,20 @@ remote target shall support either both or neither of a given
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avoid potential problems with duplicate packets, the operations should
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be implemented in an idempotent way.}
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@item z0,@var{addr},@var{length}
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@itemx Z0,@var{addr},@var{length}
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@item z0,@var{addr},@var{kind}
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@itemx Z0,@var{addr},@var{kind}
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@cindex @samp{z0} packet
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@cindex @samp{Z0} packet
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Insert (@samp{Z0}) or remove (@samp{z0}) a memory breakpoint at address
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@var{addr} of size @var{length}.
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@var{addr} of type @var{kind}.
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A memory breakpoint is implemented by replacing the instruction at
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@var{addr} with a software breakpoint or trap instruction. The
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@var{length} is used by targets that indicates the size of the
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breakpoint (in bytes) that should be inserted (e.g., the @sc{arm} and
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@sc{mips} can insert either a 2 or 4 byte breakpoint).
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@var{kind} is target-specific and typically indicates the size of
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the breakpoint in bytes that should be inserted. E.g., the @sc{arm}
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and @sc{mips} can insert either a 2 or 4 byte breakpoint. Some
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architectures have additional meanings for @var{kind};
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see @ref{Architecture-Specific Protocol Details}.
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@emph{Implementation note: It is possible for a target to copy or move
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code that contains memory breakpoints (e.g., when implementing
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@@ -29216,15 +29217,16 @@ not supported
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for an error
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@end table
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@item z1,@var{addr},@var{length}
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@itemx Z1,@var{addr},@var{length}
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@item z1,@var{addr},@var{kind}
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@itemx Z1,@var{addr},@var{kind}
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@cindex @samp{z1} packet
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@cindex @samp{Z1} packet
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Insert (@samp{Z1}) or remove (@samp{z1}) a hardware breakpoint at
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address @var{addr} of size @var{length}.
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address @var{addr}.
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A hardware breakpoint is implemented using a mechanism that is not
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dependant on being able to modify the target's memory.
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dependant on being able to modify the target's memory. @var{kind}
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has the same meaning as in @samp{Z0} packets.
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@emph{Implementation note: A hardware breakpoint is not affected by code
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movement.}
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@@ -29239,11 +29241,12 @@ not supported
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for an error
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@end table
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@item z2,@var{addr},@var{length}
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@itemx Z2,@var{addr},@var{length}
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@item z2,@var{addr},@var{kind}
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@itemx Z2,@var{addr},@var{kind}
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@cindex @samp{z2} packet
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@cindex @samp{Z2} packet
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Insert (@samp{Z2}) or remove (@samp{z2}) a write watchpoint.
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Insert (@samp{Z2}) or remove (@samp{z2}) a write watchpoint at @var{addr}.
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@var{kind} is interpreted as the number of bytes to watch.
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Reply:
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@table @samp
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@@ -29255,11 +29258,12 @@ not supported
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for an error
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@end table
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@item z3,@var{addr},@var{length}
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@itemx Z3,@var{addr},@var{length}
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@item z3,@var{addr},@var{kind}
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@itemx Z3,@var{addr},@var{kind}
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@cindex @samp{z3} packet
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@cindex @samp{Z3} packet
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Insert (@samp{Z3}) or remove (@samp{z3}) a read watchpoint.
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Insert (@samp{Z3}) or remove (@samp{z3}) a read watchpoint at @var{addr}.
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@var{kind} is interpreted as the number of bytes to watch.
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Reply:
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@table @samp
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@@ -29271,11 +29275,12 @@ not supported
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for an error
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@end table
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@item z4,@var{addr},@var{length}
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@itemx Z4,@var{addr},@var{length}
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@item z4,@var{addr},@var{kind}
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@itemx Z4,@var{addr},@var{kind}
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@cindex @samp{z4} packet
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@cindex @samp{Z4} packet
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Insert (@samp{Z4}) or remove (@samp{z4}) an access watchpoint.
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Insert (@samp{Z4}) or remove (@samp{z4}) an access watchpoint at @var{addr}.
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@var{kind} is interpreted as the number of bytes to watch.
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Reply:
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@table @samp
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@@ -30338,8 +30343,35 @@ A badly formed request or an error was encountered.
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@end table
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@node Register Packet Format
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@section Register Packet Format
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@node Architecture-Specific Protocol Details
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@section Architecture-Specific Protocol Details
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This section describes how the remote protocol is applied to specific
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target architectures. Also see @ref{Standard Target Features}, for
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details of XML target descriptions for each architecture.
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@subsection ARM
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@subsubsection Breakpoint Kinds
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These breakpoint kinds are defined for the @samp{Z0} and @samp{Z1} packets.
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@table @r
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@item 2
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16-bit Thumb mode breakpoint.
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@item 3
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32-bit Thumb mode (Thumb-2) breakpoint.
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@item 4
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32-bit ARM mode breakpoint.
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@end table
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@subsection MIPS
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@subsubsection Register Packet Format
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The following @code{g}/@code{G} packets have previously been defined.
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In the below, some thirty-two bit registers are transferred as
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