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Adding AArch64 documentation.

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2013-02-05  Yufeng Zhang  <yufeng.zhang@arm.com>

        * gdb.texinfo (AArch64 Features): New section; document
        org.gnu.gdb.aarch64.core and org.gnu.gdb.aarch64.fpu.
        (Architectures): Add new AArch64 section to document AArch64
        architecture specific commands.
        (ABI): Add description of the new OS ABI "Newlib" and its influence
        on the longjmp handling.
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Marcus Shawcroft
2013-02-05 13:59:08 +00:00
parent 37ba9f93b2
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9
gdb/doc/ChangeLog
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@ -1,3 +1,12 @@
2013-02-05 Yufeng Zhang <yufeng.zhang@arm.com>
* gdb.texinfo (AArch64 Features): New section; document
org.gnu.gdb.aarch64.core and org.gnu.gdb.aarch64.fpu.
(Architectures): Add new AArch64 section to document AArch64
architecture specific commands.
(ABI): Add description of the new OS ABI "Newlib" and its influence
on the longjmp handling.
2013-02-03 Eldar Gaynetdinov <hal9000ed2k@gmail.com> 2013-02-03 Eldar Gaynetdinov <hal9000ed2k@gmail.com>
Jan Kratochvil <jan.kratochvil@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com>

38
gdb/doc/gdb.texinfo
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@ -20693,6 +20693,7 @@ This section describes characteristics of architectures that affect
all uses of @value{GDBN} with the architecture, both native and cross. all uses of @value{GDBN} with the architecture, both native and cross.
@menu @menu
* AArch64::
* i386:: * i386::
* Alpha:: * Alpha::
* MIPS:: * MIPS::
@ -20701,6 +20702,24 @@ all uses of @value{GDBN} with the architecture, both native and cross.
* PowerPC:: * PowerPC::
@end menu @end menu
@node AArch64
@subsection AArch64
@cindex AArch64 support
When @value{GDBN} is debugging the AArch64 architecture, it provides the
following special commands:
@table @code
@item set debug aarch64
@kindex set debug aarch64
This command determines whether AArch64 architecture-specific debugging
messages are to be displayed.
@item show debug aarch64
Show whether AArch64 debugging messages are displayed.
@end table
@node i386 @node i386
@subsection x86 Architecture-specific Issues @subsection x86 Architecture-specific Issues
@ -21330,6 +21349,7 @@ current ABI.
@cindex OS ABI @cindex OS ABI
@kindex set osabi @kindex set osabi
@kindex show osabi @kindex show osabi
@cindex Newlib OS ABI and its influence on the longjmp handling
One @value{GDBN} configuration can debug binaries for multiple operating One @value{GDBN} configuration can debug binaries for multiple operating
system targets, either via remote debugging or native emulation. system targets, either via remote debugging or native emulation.
@ -21340,6 +21360,11 @@ an alternate C library (e.g.@: @sc{uClibc} for @sc{gnu}/Linux) which does
not have the same identifying marks that the standard C library for your not have the same identifying marks that the standard C library for your
platform provides. platform provides.
When @value{GDBN} is debugging the AArch64 architecture, it provides a
``Newlib'' OS ABI. This is useful for handling @code{setjmp} and
@code{longjmp} when debugging binaries that use the @sc{newlib} C library.
The ``Newlib'' OS ABI can be selected by @code{set osabi Newlib}.
@table @code @table @code
@item show osabi @item show osabi
Show the OS ABI currently in use. Show the OS ABI currently in use.
@ -40770,6 +40795,7 @@ of recognizing standard features, but @value{GDBN} will only display
registers using the capitalization used in the description. registers using the capitalization used in the description.
@menu @menu
* AArch64 Features::
* ARM Features:: * ARM Features::
* i386 Features:: * i386 Features::
* MIPS Features:: * MIPS Features::
@ -40779,6 +40805,18 @@ registers using the capitalization used in the description.
@end menu @end menu
@node AArch64 Features
@subsection AArch64 Features
@cindex target descriptions, AArch64 features
The @samp{org.gnu.gdb.aarch64.core} feature is required for AArch64
targets. It should contain registers @samp{x0} through @samp{x30},
@samp{sp}, @samp{pc}, and @samp{cpsr}.
The @samp{org.gnu.gdb.aarch64.fpu} feature is optional. If present,
it should contain registers @samp{v0} through @samp{v31}, @samp{fpsr},
and @samp{fpcr}.
@node ARM Features @node ARM Features
@subsection ARM Features @subsection ARM Features
@cindex target descriptions, ARM features @cindex target descriptions, ARM features