Index: gdb-7.10.50.20160121/gdb/config/i386/linux64.mh =================================================================== --- gdb-7.10.50.20160121.orig/gdb/config/i386/linux64.mh 2016-01-21 02:48:36.000000000 +0100 +++ gdb-7.10.50.20160121/gdb/config/i386/linux64.mh 2016-01-22 18:36:09.099067233 +0100 @@ -7,7 +7,7 @@ linux-procfs.o linux-ptrace.o linux-btrace.o \ linux-waitpid.o linux-personality.o x86-linux.o \ x86-linux-dregs.o linux-namespaces.o -NAT_FILE= config/nm-linux.h +NAT_FILE= nm-linux64.h NAT_CDEPS = $(srcdir)/proc-service.list # The dynamically loaded libthread_db needs access to symbols in the Index: gdb-7.10.50.20160121/gdb/config/i386/linux.mh =================================================================== --- gdb-7.10.50.20160121.orig/gdb/config/i386/linux.mh 2016-01-21 02:48:36.000000000 +0100 +++ gdb-7.10.50.20160121/gdb/config/i386/linux.mh 2016-01-22 18:36:09.099067233 +0100 @@ -1,6 +1,6 @@ # Host: Intel 386 running GNU/Linux. -NAT_FILE= config/nm-linux.h +NAT_FILE= nm-linux.h NATDEPFILES= inf-ptrace.o fork-child.o \ x86-nat.o x86-dregs.o i386-linux-nat.o x86-linux-nat.o \ proc-service.o linux-thread-db.o \ Index: gdb-7.10.50.20160121/gdb/config/i386/nm-linux.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ gdb-7.10.50.20160121/gdb/config/i386/nm-linux.h 2016-01-22 18:36:09.099067233 +0100 @@ -0,0 +1,28 @@ +/* Native support for GNU/Linux i386. + + Copyright 2010 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#ifndef NM_LINUX_H +#define NM_LINUX_H + +#include "config/nm-linux.h" + +/* Red Hat backward compatibility with gdb-6.8. */ +#define target_can_use_hardware_watchpoint(type, cnt, ot) 1 + +#endif /* NM_LINUX64_H */ Index: gdb-7.10.50.20160121/gdb/config/i386/nm-linux64.h =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ gdb-7.10.50.20160121/gdb/config/i386/nm-linux64.h 2016-01-22 18:36:09.100067240 +0100 @@ -0,0 +1,28 @@ +/* Native support for GNU/Linux amd64. + + Copyright 2010 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#ifndef NM_LINUX64_H +#define NM_LINUX64_H + +#include "config/nm-linux.h" + +/* Red Hat backward compatibility with gdb-6.8. */ +#define target_can_use_hardware_watchpoint(type, cnt, ot) 1 + +#endif /* NM_LINUX64_H */ Index: gdb-7.10.50.20160121/gdb/target.h =================================================================== --- gdb-7.10.50.20160121.orig/gdb/target.h 2016-01-21 02:48:36.000000000 +0100 +++ gdb-7.10.50.20160121/gdb/target.h 2016-01-22 18:36:09.100067240 +0100 @@ -1924,9 +1924,11 @@ CNT is the number of such watchpoints used so far, including this one. OTHERTYPE is who knows what... */ +#ifndef target_can_use_hardware_watchpoint #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \ (*current_target.to_can_use_hw_breakpoint) (¤t_target, \ TYPE, CNT, OTHERTYPE) +#endif /* Returns the number of debug registers needed to watch the given memory region, or zero if not supported. */ Index: gdb-7.10.50.20160121/gdb/testsuite/gdb.base/watchpoint-hw-before-run.exp =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ gdb-7.10.50.20160121/gdb/testsuite/gdb.base/watchpoint-hw-before-run.exp 2016-01-22 18:38:58.350155294 +0100 @@ -0,0 +1,40 @@ +# Copyright 2009, 2010 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# Arch not supporting hw watchpoints does not imply no_hardware_watchpoints set. +if {(![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] + && ![istarget "ia64-*-*"]) + || [target_info exists gdb,no_hardware_watchpoints]} then { + verbose "Skipping watchpoint-hw-before-run test." + return +} + +set test watchpoint-hw-before-run +set srcfile watchpoint-hw-hit-once.c +if { [prepare_for_testing ${test}.exp ${test} ${srcfile}] } { + return -1 +} + +gdb_test "rwatch watchee" "ardware read watchpoint 1: watchee" + +# `runto_main' or `runto main' would delete the watchpoint created above. + +if { [gdb_start_cmd] < 0 } { + untested start + return -1 +} +gdb_test "" "main .* at .*" "start" + +gdb_test "continue" "Continuing.\r\n\r\nHardware read watchpoint \[0-9\]+: watchee\r\n\r\nValue = 0\r\n.*"