Unify ptrace options discovery code and make both GDB and

	gdbserver use it.

	gdb/
	* Makefile.in (HFILES_NO_SRCDIR): Add nat/linux-nat.h and
	nat/linux-waitpid.h.
	(linux-waitpid.o): New object file rule.
	* common/linux-ptrace.c: Include nat/linux-waitpid.h.
	(current_ptrace_options): Moved from linux-nat.c.
	(linux_ptrace_test_ret_to_nx): Use type casts for ptrace
	parameters.
	(linux_fork_to_function): New function.
	(linux_grandchild_function): Likewise.
	(linux_child_function): Likewise.
	(linux_check_ptrace_features): New function, heavily
	based on linux-nat.c:linux_test_for_tracefork.
	(linux_enable_event_reporting): New function.
	(ptrace_supports_feature): Likewise.
	(linux_supports_tracefork): Likewise.
	(linux_supports_traceclone): Likewise.
	(linux_supports_tracevforkdone): Likewise.
	(linux_supports_tracesysgood): Likewise.
	* common/linux-ptrace.h (HAS_NOMMU): Moved from
	gdbserver/linux-low.c.
	(linux_enable_event_reporting): New declaration.
	(linux_supports_tracefork): Likewise.
	(linux_supports_traceclone): Likewise.
	(linux_supports_tracevforkdone): Likewise.
	(linux_supports_tracesysgood): Likewise.
	* config.in (PTRACE_TYPE_ARG4): Regenerate.
	* config/aarch64/linux.mh (NATDEPFILES): Add linux-waitpid.o.
	* config/alpha/alpha-linux.mh (NATDEPFILES): Likewise.
	* config/arm/linux.mh (NATDEPFILES): Likewise.
	* config/i386/linux.mh (NATDEPFILES): Likewise.
	* config/i386/linux64.mh (NATDEPFILES): Likewise.
	* config/ia64/linux.mh (NATDEPFILES): Likewise.
	* config/m32r/linux.mh (NATDEPFILES): Likewise.
	* config/m68k/linux.mh (NATDEPFILES): Likewise.
	* config/mips/linux.mh (NATDEPFILES): Likewise.
	* config/pa/linux.mh (NATDEPFILES): Likewise..
	* config/powerpc/linux.mh (NATDEPFILES): Likewise..
	* config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise.
	* config/powerpc/spu-linux.mh (NATDEPFILES): Likewise.
	* config/sparc/linux.mh (NATDEPFILES): Likewise.
	* config/sparc/linux64.mh (NATDEPFILES): Likewise.
	* config/tilegx/linux.mh (NATDEPFILES): Likewise.
	* config/xtensa/linux.mh (NATDEPFILES): Likewise.
	* configure.ac (AC_CACHE_CHECK): Add void * to the list of
	ptrace's 4th argument's types.
	Check the type of PTRACE_TYPE_ARG4.
	* configure: Regenerate.
	* linux-nat.c: Include nat/linux-nat.h and nat/linux-waitpid.h.
	(SYSCALL_SIGTRAP): Moved to nat/linux-nat.h.
	(linux_supports_tracefork_flag): Remove.
	(linux_supports_tracesysgood_flag): Likewise.
	(linux_supports_tracevforkdone_flag): Likewise.
	(current_ptrace_options): Moved to
	common/linux-ptrace.c.
	(linux_tracefork_child): Remove.
	(my_waitpid): Remove.
	(linux_test_for_tracefork): Renamed to
	linux_check_ptrace_features and moved to common/linux-ptrace.c.
	(linux_test_for_tracesysgood): Remove.
	(linux_supports_tracesysgood): Remove.
	(linux_supports_tracefork): Remove.
	(linux_supports_tracevforkdone): Remove.
	(linux_enable_tracesysgood): Remove.
	(linux_enable_event_reporting): Remove.
	(linux_init_ptrace): New function.
	(linux_child_post_attach): Call linux_init_ptrace.
	(linux_child_post_startup_inferior): Call linux_init_ptrace.
	(linux_child_follow_fork): Call linux_supports_tracefork
	and linux_supports_tracevforkdone.
	(linux_child_insert_fork_catchpoint): Call
	linux_supports_tracefork.
	(linux_child_insert_vfork_catchpoint): Likewise.
	(linux_child_set_syscall_catchpoint): Call
	linux_supports_tracesysgood.
	(lin_lwp_attach_lwp): Call linux_supports_tracefork.
	* nat/linux-nat.h: New file.
	* nat/linux-waitpid.c: New file.
	* nat/linux-waitpid.h: New file.

	gdb/gdbserver/
	* Makefile.in: Explain why ../target and ../nat are not
	listed as include file search paths.
	(linux-waitpid.o): New object file rule.
	* configure.srv (srv_native_linux_obj): New variable.
	Replace all occurrences of linux native object files with
	$srv_native_linux_obj.
	* linux-low.c: Include nat/linux-nat.h and nat/linux-waitpid.h.
	(HAS_NOMMU): Move defining logic to common/linux-ptrace.c.
	(linux_enable_event_reporting): Remove declaration.
	(my_waitpid): Moved to common/linux-waitpid.c.
	(linux_wait_for_event): Pass ptid when calling
	linux_enable_event_reporting.
	(linux_supports_tracefork_flag): Remove.
	(linux_enable_event_reporting): Likewise.
	(linux_tracefork_grandchild): Remove.
	(STACK_SIZE): Moved to common/linux-ptrace.c.
	(linux_tracefork_child): Remove.
	(linux_test_for_tracefork): Remove.
	(linux_look_up_symbols): Call linux_supports_traceclone.
	(initialize_low): Remove call to linux_test_for_tracefork.
	* linux-low.h (PTRACE_TYPE_ARG3): Move to
	common/linux-ptrace.h.
	(PTRACE_TYPE_ARG4): Likewise.
	Include linux-ptrace.h.

1 files changed, 27 insertions, 42 deletions

diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv
index b9dfd6c..b3c0421 100644
--- a/gdb/gdbserver/configure.srv
+++ b/gdb/gdbserver/configure.srv
@@ -39,16 +39,18 @@ srv_amd64_xmlfiles="i386/amd64.xml i386/amd64-avx.xml i386/x32.xml i386/x32-avx.
 srv_i386_linux_xmlfiles="i386/i386-linux.xml i386/i386-avx-linux.xml i386/i386-mmx-linux.xml i386/32bit-linux.xml $srv_i386_32bit_xmlfiles"
 srv_amd64_linux_xmlfiles="i386/amd64-linux.xml i386/amd64-avx-linux.xml i386/64bit-linux.xml i386/x32-linux.xml i386/x32-avx-linux.xml $srv_i386_64bit_xmlfiles"
 
+
+# Linux object files.  This is so we don't have to repeat
+# these files over and over again.
+srv_linux_obj="linux-low.o linux-osdata.o linux-procfs.o linux-ptrace.o linux-waitpid.o"
+
 # Input is taken from the "${target}" variable.
 
 case "${target}" in
   aarch64*-*-linux*)
 			srv_regobj="aarch64.o"
 			srv_tgtobj="linux-aarch64-low.o"
-			srv_tgtobj="${srv_tgtobj} linux-low.o"
-			srv_tgtobj="${srv_tgtobj} linux-osdata.o"
-			srv_tgtobj="${srv_tgtobj} linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="${srv_tgtobj} $srv_linux_obj"
 			srv_xmlfiles="aarch64.xml"
 			srv_xmlfiles="${srv_xmlfiles} aarch64-core.xml"
 			srv_xmlfiles="${srv_xmlfiles} aarch64-fpu.xml"
@@ -60,8 +62,7 @@ case "${target}" in
 			srv_regobj="${srv_regobj} arm-with-vfpv2.o"
 			srv_regobj="${srv_regobj} arm-with-vfpv3.o"
 			srv_regobj="${srv_regobj} arm-with-neon.o"
-			srv_tgtobj="linux-low.o linux-osdata.o linux-arm-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-arm-low.o"
 			srv_xmlfiles="arm-with-iwmmxt.xml"
 			srv_xmlfiles="${srv_xmlfiles} arm-with-vfpv2.xml"
 			srv_xmlfiles="${srv_xmlfiles} arm-with-vfpv3.xml"
@@ -83,20 +84,17 @@ case "${target}" in
 			srv_mingwce=yes
 			;;
   bfin-*-*linux*)	srv_regobj=reg-bfin.o
-			srv_tgtobj="linux-low.o linux-osdata.o linux-bfin-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-bfin-low.o"
 			srv_linux_usrregs=yes
 			srv_linux_thread_db=yes
 			;;
   crisv32-*-linux*)	srv_regobj=reg-crisv32.o
-			srv_tgtobj="linux-low.o linux-osdata.o linux-crisv32-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-crisv32-low.o"
 			srv_linux_regsets=yes
 			srv_linux_thread_db=yes
 			;;
   cris-*-linux*)	srv_regobj=reg-cris.o
-			srv_tgtobj="linux-low.o linux-osdata.o linux-cris-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-cris-low.o"
 			srv_linux_usrregs=yes
 			srv_linux_thread_db=yes
 			;;
@@ -110,8 +108,8 @@ case "${target}" in
 			    srv_regobj="$srv_regobj $srv_amd64_linux_regobj"
 			    srv_xmlfiles="${srv_xmlfiles} $srv_amd64_linux_xmlfiles"
 			fi
-			srv_tgtobj="linux-low.o linux-osdata.o linux-x86-low.o i386-low.o i387-fp.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o linux-btrace.o"
+			srv_tgtobj="$srv_linux_obj linux-x86-low.o i386-low.o i387-fp.o"
+			srv_tgtobj="${srv_tgtobj} linux-btrace.o"
 			srv_linux_usrregs=yes
 			srv_linux_regsets=yes
 			srv_linux_thread_db=yes
@@ -146,13 +144,11 @@ case "${target}" in
 			srv_qnx="yes"
 			;;
   ia64-*-linux*)	srv_regobj=reg-ia64.o
-			srv_tgtobj="linux-low.o linux-osdata.o linux-ia64-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-ia64-low.o"
 			srv_linux_usrregs=yes
 			;;
   m32r*-*-linux*)	srv_regobj=reg-m32r.o
-			srv_tgtobj="linux-low.o linux-osdata.o linux-m32r-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-m32r-low.o"
 			srv_linux_usrregs=yes
  			srv_linux_thread_db=yes
 			;;
@@ -161,8 +157,7 @@ case "${target}" in
                         else
                           srv_regobj=reg-m68k.o
                         fi
-			srv_tgtobj="linux-low.o linux-osdata.o linux-m68k-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-m68k-low.o"
 			srv_linux_usrregs=yes
 			srv_linux_regsets=yes
 			srv_linux_thread_db=yes
@@ -172,8 +167,7 @@ case "${target}" in
                         else
                           srv_regobj=reg-m68k.o
                         fi
-			srv_tgtobj="linux-low.o linux-osdata.o linux-m68k-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-m68k-low.o"
 			srv_linux_usrregs=yes
 			srv_linux_regsets=yes
 			srv_linux_thread_db=yes
@@ -182,8 +176,7 @@ case "${target}" in
 			srv_regobj="${srv_regobj} mips-dsp-linux.o"
 			srv_regobj="${srv_regobj} mips64-linux.o"
 			srv_regobj="${srv_regobj} mips64-dsp-linux.o"
-			srv_tgtobj="linux-low.o linux-osdata.o linux-mips-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-mips-low.o"
 			srv_tgtobj="${srv_tgtobj} mips-linux-watch.o"
 			srv_xmlfiles="mips-linux.xml"
 			srv_xmlfiles="${srv_xmlfiles} mips-dsp-linux.xml"
@@ -202,8 +195,7 @@ case "${target}" in
 			srv_linux_thread_db=yes
 			;;
   nios2*-*-linux*)	srv_regobj="nios2-linux.o"
-			srv_tgtobj="linux-low.o linux-osdata.o linux-nios2-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-nios2-low.o"
 			srv_xmlfiles="nios2-linux.xml"
 			srv_xmlfiles="${srv_xmlfiles} nios2-cpu.xml"
 			srv_linux_regsets=yes
@@ -225,8 +217,7 @@ case "${target}" in
 			srv_regobj="${srv_regobj} powerpc-isa205-64l.o"
 			srv_regobj="${srv_regobj} powerpc-isa205-altivec64l.o"
 			srv_regobj="${srv_regobj} powerpc-isa205-vsx64l.o"
-			srv_tgtobj="linux-low.o linux-osdata.o linux-ppc-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-ppc-low.o"
 			srv_xmlfiles="rs6000/powerpc-32l.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-altivec32l.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-cell32l.xml"
@@ -271,8 +262,7 @@ case "${target}" in
 			srv_regobj="${srv_regobj} s390x-linux64.o"
 			srv_regobj="${srv_regobj} s390x-linux64v1.o"
 			srv_regobj="${srv_regobj} s390x-linux64v2.o"
-			srv_tgtobj="linux-low.o linux-osdata.o linux-s390-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-s390-low.o"
 			srv_xmlfiles="s390-linux32.xml"
 			srv_xmlfiles="${srv_xmlfiles} s390-linux32v1.xml"
 			srv_xmlfiles="${srv_xmlfiles} s390-linux32v2.xml"
@@ -292,15 +282,13 @@ case "${target}" in
 			srv_linux_thread_db=yes
 			;;
   sh*-*-linux*)		srv_regobj=reg-sh.o
-			srv_tgtobj="linux-low.o linux-osdata.o linux-sh-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-sh-low.o"
 			srv_linux_usrregs=yes
 			srv_linux_regsets=yes
 			srv_linux_thread_db=yes
 			;;
   sparc*-*-linux*)	srv_regobj=reg-sparc64.o
-			srv_tgtobj="linux-low.o linux-osdata.o linux-sparc-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-sparc-low.o"
 			srv_linux_regsets=yes
 			srv_linux_thread_db=yes
 			;;
@@ -316,15 +304,14 @@ case "${target}" in
 			srv_xmlfiles="${srv_xmlfiles} tic6x-core.xml"
 			srv_xmlfiles="${srv_xmlfiles} tic6x-gp.xml"
 			srv_xmlfiles="${srv_xmlfiles} tic6x-c6xp.xml"
-  			srv_tgtobj="linux-low.o linux-osdata.o linux-tic6x-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-tic6x-low.o"
 			srv_linux_regsets=yes
 			srv_linux_usrregs=yes
 			srv_linux_thread_db=yes
 			;;
   x86_64-*-linux*)	srv_regobj="$srv_amd64_linux_regobj $srv_i386_linux_regobj"
-			srv_tgtobj="linux-low.o linux-osdata.o linux-x86-low.o i386-low.o i387-fp.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o linux-btrace.o"
+			srv_tgtobj="$srv_linux_obj linux-x86-low.o i386-low.o i387-fp.o"
+			srv_tgtobj="${srv_tgtobj} linux-btrace.o"
 			srv_xmlfiles="$srv_i386_linux_xmlfiles $srv_amd64_linux_xmlfiles"
 			srv_linux_usrregs=yes # This is for i386 progs.
 			srv_linux_regsets=yes
@@ -343,14 +330,12 @@ case "${target}" in
 			;;
 
   xtensa*-*-linux*)	srv_regobj=reg-xtensa.o
-			srv_tgtobj="linux-low.o linux-osdata.o linux-xtensa-low.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-xtensa-low.o"
 			srv_linux_regsets=yes
 			;;
   tilegx-*-linux*)	srv_regobj=reg-tilegx.o
 			srv_regobj="${srv_regobj} reg-tilegx32.o"
-			srv_tgtobj="linux-low.o linux-tile-low.o linux-osdata.o linux-procfs.o"
-			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
+			srv_tgtobj="$srv_linux_obj linux-osdata.o"
 			srv_linux_regsets=yes
 			srv_linux_thread_db=yes
 			;;