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.

17 files changed, 26 insertions, 17 deletions

diff --git a/gdb/config/aarch64/linux.mh b/gdb/config/aarch64/linux.mh
index 2b2202e8cf4..18a12abd1b1 100644
--- a/gdb/config/aarch64/linux.mh
+++ b/gdb/config/aarch64/linux.mh
@@ -21,7 +21,7 @@
 NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o fork-child.o aarch64-linux-nat.o \
 	proc-service.o linux-thread-db.o linux-nat.o linux-fork.o \
-	linux-procfs.o linux-ptrace.o linux-osdata.o
+	linux-procfs.o linux-ptrace.o linux-osdata.o linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 LOADLIBES= -ldl $(RDYNAMIC)
diff --git a/gdb/config/alpha/alpha-linux.mh b/gdb/config/alpha/alpha-linux.mh
index 9eb9e4b7291..81819a16bb0 100644
--- a/gdb/config/alpha/alpha-linux.mh
+++ b/gdb/config/alpha/alpha-linux.mh
@@ -2,7 +2,8 @@
 NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o alpha-linux-nat.o \
 	fork-child.o proc-service.o linux-thread-db.o \
-	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
+	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
+	linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 # The dynamically loaded libthread_db needs access to symbols in the
diff --git a/gdb/config/arm/linux.mh b/gdb/config/arm/linux.mh
index c0a1c66804a..63c3eae45cd 100644
--- a/gdb/config/arm/linux.mh
+++ b/gdb/config/arm/linux.mh
@@ -3,7 +3,8 @@
 NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o fork-child.o arm-linux-nat.o \
 	proc-service.o linux-thread-db.o \
-	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
+	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
+	linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 LOADLIBES= -ldl $(RDYNAMIC)
diff --git a/gdb/config/i386/linux.mh b/gdb/config/i386/linux.mh
index 7c64e836325..10a25849117 100644
--- a/gdb/config/i386/linux.mh
+++ b/gdb/config/i386/linux.mh
@@ -5,7 +5,7 @@ NATDEPFILES= inf-ptrace.o fork-child.o \
 	i386-nat.o i386-linux-nat.o \
 	proc-service.o linux-thread-db.o \
 	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
-	linux-btrace.o
+	linux-btrace.o linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 # The dynamically loaded libthread_db needs access to symbols in the
diff --git a/gdb/config/i386/linux64.mh b/gdb/config/i386/linux64.mh
index 8d782c1a335..686c363510d 100644
--- a/gdb/config/i386/linux64.mh
+++ b/gdb/config/i386/linux64.mh
@@ -3,7 +3,8 @@ NATDEPFILES= inf-ptrace.o fork-child.o \
 	i386-nat.o amd64-nat.o amd64-linux-nat.o \
 	linux-nat.o linux-osdata.o \
 	proc-service.o linux-thread-db.o linux-fork.o \
-	linux-procfs.o linux-ptrace.o linux-btrace.o
+	linux-procfs.o linux-ptrace.o linux-btrace.o \
+	linux-waitpid.o
 NAT_FILE= config/nm-linux.h
 NAT_CDEPS = $(srcdir)/proc-service.list
 
diff --git a/gdb/config/ia64/linux.mh b/gdb/config/ia64/linux.mh
index 1a4c68e0937..a2aff442f69 100644
--- a/gdb/config/ia64/linux.mh
+++ b/gdb/config/ia64/linux.mh
@@ -5,7 +5,7 @@ NATDEPFILES= inf-ptrace.o fork-child.o \
 	core-regset.o ia64-linux-nat.o \
 	proc-service.o linux-thread-db.o \
 	linux-nat.o linux-osdata.o linux-fork.o \
-	linux-procfs.o linux-ptrace.o
+	linux-procfs.o linux-ptrace.o linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 LOADLIBES = -ldl $(RDYNAMIC)
diff --git a/gdb/config/m32r/linux.mh b/gdb/config/m32r/linux.mh
index b4618064bff..e9bb82cbc5a 100644
--- a/gdb/config/m32r/linux.mh
+++ b/gdb/config/m32r/linux.mh
@@ -3,7 +3,8 @@
 NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o fork-child.o				\
 	m32r-linux-nat.o proc-service.o linux-thread-db.o	\
-	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
+	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
+	linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 LOADLIBES= -ldl $(RDYNAMIC)
diff --git a/gdb/config/m68k/linux.mh b/gdb/config/m68k/linux.mh
index e3aaf382c8c..bcec2958a14 100644
--- a/gdb/config/m68k/linux.mh
+++ b/gdb/config/m68k/linux.mh
@@ -4,7 +4,8 @@ NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o fork-child.o \
 	m68klinux-nat.o \
 	proc-service.o linux-thread-db.o \
-	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
+	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
+	linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 # The dynamically loaded libthread_db needs access to symbols in the
diff --git a/gdb/config/mips/linux.mh b/gdb/config/mips/linux.mh
index a4f23e3c9d7..021838e0af7 100644
--- a/gdb/config/mips/linux.mh
+++ b/gdb/config/mips/linux.mh
@@ -3,7 +3,8 @@ NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o fork-child.o mips-linux-nat.o \
 	linux-thread-db.o proc-service.o \
 	linux-nat.o linux-osdata.o linux-fork.o \
-	linux-procfs.o linux-ptrace.o mips-linux-watch.o
+	linux-procfs.o linux-ptrace.o linux-waitpid.o \
+	mips-linux-watch.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 LOADLIBES = -ldl $(RDYNAMIC)
diff --git a/gdb/config/pa/linux.mh b/gdb/config/pa/linux.mh
index fa46db6ebe5..f1c0c32783b 100644
--- a/gdb/config/pa/linux.mh
+++ b/gdb/config/pa/linux.mh
@@ -3,7 +3,7 @@ NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o fork-child.o \
 	hppa-linux-nat.o proc-service.o linux-thread-db.o \
 	linux-nat.o linux-osdata.o linux-fork.o \
-	linux-procfs.o linux-ptrace.o
+	linux-procfs.o linux-ptrace.o linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 LOADLIBES = -ldl $(RDYNAMIC)
diff --git a/gdb/config/powerpc/linux.mh b/gdb/config/powerpc/linux.mh
index b0d4ce7c55c..a807d3fac06 100644
--- a/gdb/config/powerpc/linux.mh
+++ b/gdb/config/powerpc/linux.mh
@@ -5,7 +5,8 @@ XM_CLIBS=
 NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o fork-child.o \
 	ppc-linux-nat.o proc-service.o linux-thread-db.o \
-	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
+	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
+	linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 LOADLIBES = -ldl $(RDYNAMIC)
diff --git a/gdb/config/powerpc/ppc64-linux.mh b/gdb/config/powerpc/ppc64-linux.mh
index 367a81853b5..4b91408fbe6 100644
--- a/gdb/config/powerpc/ppc64-linux.mh
+++ b/gdb/config/powerpc/ppc64-linux.mh
@@ -5,7 +5,8 @@ XM_CLIBS=
 NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o fork-child.o \
 	ppc-linux-nat.o proc-service.o linux-thread-db.o \
-	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
+	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
+	linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 # The PowerPC has severe limitations on TOC size, and uses them even
diff --git a/gdb/config/powerpc/spu-linux.mh b/gdb/config/powerpc/spu-linux.mh
index 1bc279a8138..7ce7a5ff141 100644
--- a/gdb/config/powerpc/spu-linux.mh
+++ b/gdb/config/powerpc/spu-linux.mh
@@ -4,5 +4,5 @@
 # PPU side of the Cell BE and debugging the SPU side.
 
 NATDEPFILES = spu-linux-nat.o fork-child.o inf-ptrace.o \
-	      linux-procfs.o linux-ptrace.o
+	      linux-procfs.o linux-ptrace.o linux-waitpid.o
 
diff --git a/gdb/config/sparc/linux.mh b/gdb/config/sparc/linux.mh
index 6a2cefd7b5c..d80259176d7 100644
--- a/gdb/config/sparc/linux.mh
+++ b/gdb/config/sparc/linux.mh
@@ -4,7 +4,7 @@ NATDEPFILES= sparc-nat.o sparc-linux-nat.o \
 	core-regset.o fork-child.o inf-ptrace.o \
 	proc-service.o linux-thread-db.o \
 	linux-nat.o linux-osdata.o linux-fork.o \
-	linux-procfs.o linux-ptrace.o
+	linux-procfs.o linux-ptrace.o linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 # The dynamically loaded libthread_db needs access to symbols in the
diff --git a/gdb/config/sparc/linux64.mh b/gdb/config/sparc/linux64.mh
index d1e1a97162f..c83097ec54d 100644
--- a/gdb/config/sparc/linux64.mh
+++ b/gdb/config/sparc/linux64.mh
@@ -5,7 +5,7 @@ NATDEPFILES= sparc-nat.o sparc64-nat.o sparc64-linux-nat.o \
 	fork-child.o inf-ptrace.o \
 	proc-service.o linux-thread-db.o \
 	linux-nat.o linux-osdata.o linux-fork.o \
-	linux-procfs.o linux-ptrace.o
+	linux-procfs.o linux-ptrace.o linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 # The dynamically loaded libthread_db needs access to symbols in the
diff --git a/gdb/config/tilegx/linux.mh b/gdb/config/tilegx/linux.mh
index 56ef694b1f3..1ed9c33c120 100644
--- a/gdb/config/tilegx/linux.mh
+++ b/gdb/config/tilegx/linux.mh
@@ -5,7 +5,7 @@ NATDEPFILES= inf-ptrace.o fork-child.o \
 	tilegx-linux-nat.o \
 	proc-service.o linux-thread-db.o \
 	linux-nat.o linux-osdata.o linux-fork.o \
-	linux-procfs.o linux-ptrace.o
+	linux-procfs.o linux-ptrace.o linux-waitpid.o
 
 # The dynamically loaded libthread_db needs access to symbols in the
 # gdb executable.
diff --git a/gdb/config/xtensa/linux.mh b/gdb/config/xtensa/linux.mh
index deffe25ed42..8ef84b46cdf 100644
--- a/gdb/config/xtensa/linux.mh
+++ b/gdb/config/xtensa/linux.mh
@@ -4,7 +4,8 @@ NAT_FILE= config/nm-linux.h
 
 NATDEPFILES= inf-ptrace.o fork-child.o xtensa-linux-nat.o \
 	linux-thread-db.o proc-service.o \
-	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
+	linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
+	linux-waitpid.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 LOADLIBES = -ldl $(RDYNAMIC)