diff options
Diffstat (limited to 'gdb/doc')
| -rw-r--r-- | gdb/doc/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/doc/gdbint.texinfo | 18 |
2 files changed, 23 insertions, 0 deletions
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index a9a17a0bb22..f7b6cf1b4e0 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,8 @@ +2003-08-18 Andrew Cagney <cagney@redhat.com> + + * gdbint.texinfo (Target Architecture Definition): Document + "frame_red_zone_size". + 2003-08-09 Andrew Cagney <cagney@redhat.com> * gdb.texinfo (Backtrace): Replace "set/show backtrace-below-main" diff --git a/gdb/doc/gdbint.texinfo b/gdb/doc/gdbint.texinfo index f453327f322..100d39c6715 100644 --- a/gdb/doc/gdbint.texinfo +++ b/gdb/doc/gdbint.texinfo @@ -3229,6 +3229,24 @@ the direction of stack growth. By default, no frame based stack alignment is performed. +@item int frame_red_zone_size + +The number of bytes, beyond the innermost-stack-address, reserved by the +@sc{abi}. A function is permitted to use this scratch area (instead of +allocating extra stack space). + +When performing an inferior function call, to ensure that it does not +modify this area, @value{GDBN} adjusts the innermost-stack-address by +@var{frame_red_zone_size} bytes before pushing parameters onto the +stack. + +By default, zero bytes are allocated. The value must be aligned +(@pxref{frame_align}). + +The @sc{amd64} (nee x86-64) @sc{abi} documentation refers to the +@emph{red zone} when describing this scratch area. +@cindex red zone + @item DEPRECATED_FRAME_CHAIN(@var{frame}) @findex DEPRECATED_FRAME_CHAIN Given @var{frame}, return a pointer to the calling frame. |