[Bug gdb/13829] New: gdbserver compile error: PTRACE_GETSIGINFOundefined; arm cross-compile from cygwin

["richaw at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=13829

             Bug #: 13829
           Summary: gdbserver compile error: PTRACE_GETSIGINFO undefined;
                    arm cross-compile from cygwin
           Product: gdb
           Version: 7.4
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
        AssignedTo: unassigned@sourceware.org
        ReportedBy: richaw@gmail.com
    Classification: Unclassified


In both version 7.4 and in a git download today, I get
an error trying to cross compile gdbserver.
I am running cygwin on a 64-bit win7 system.
The cross compiler was downloaded from embeddedarm.com

The procedure I used to compile gdbserver is

cd gdb/gdbserver
CC=/opt/crosstool/gcc-3.3.4-glibc-2.3.2/arm-unknown-linux-gnu/bin/arm-unknown-linux-gnu-gcc
$ ./configure --host arm-unknown-linux
(...)
make
(...)
/opt/crosstool/gcc-3.3.4-glibc-2.3.2/arm-unknown-linux-gnu/bin/arm-unknown-linux-gnu-gcc
-c -g -O2     -I. -I. -I./../common  -I./../regformats -I./../../include -Wall
-Wpointer-arith -Wformat-nonliteral -Wno-char-subscripts -Werror
linux-arm-low.c
linux-arm-low.c: In function `arm_stopped_by_watchpoint':
linux-arm-low.c:642: error: `PTRACE_GETSIGINFO' undeclared (first use in this
function)
linux-arm-low.c:642: error: (Each undeclared identifier is reported only once
linux-arm-low.c:642: error: for each function it appears in.)
Makefile:192: recipe for target `linux-arm-low.o' failed
make: *** [linux-arm-low.o] Error 1

PTRACE_GETSIGINFO does not appear in sys/ptrace.h, despite claims in
http://linux.die.net/man/2/ptrace

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