GCC port for eBPF

This patch series introduces a port of GCC to eBPF, which is a virtual
machine that resides in the Linux kernel.  Initially intended for
user-level packet capture and filtering, eBPF is nowadays generalized
to serve as a general-purpose infrastructure also for non-networking
purposes.

The binutils support is already upstream.  See
https://sourceware.org/ml/binutils/2019-05/msg00306.html.

ChangeLog:

	* MAINTAINERS: Add myself as the maintainer of the eBPF port.
	Remove myself from Write After Approval section.
	* configure.ac: Support for bpf-*-* targets.
	* configure: Regenerate.

contrib/ChangeLog:

	* config-list.mk (LIST): Disable go in bpf-*-* targets.

gcc/ChangeLog:

	* doc/invoke.texi (Option Summary): Cover eBPF.
	(eBPF Options): New section.
	* doc/extend.texi (BPF Built-in Functions): Likewise.
	(BPF Kernel Helpers): Likewise.
	* config.gcc: Support for bpf-*-* targets.
	* common/config/bpf/bpf-common.c: New file.
	* config/bpf/t-bpf: Likewise.
	* config/bpf/predicates.md: Likewise.
	* config/bpf/constraints.md: Likewise.
	* config/bpf/bpf.opt: Likewise.
	* config/bpf/bpf.md: Likewise.
	* config/bpf/bpf.h: Likewise.
	* config/bpf/bpf.c: Likewise.
	* config/bpf/bpf-protos.h: Likewise.
	* config/bpf/bpf-opts.h: Likewise.
	* config/bpf/bpf-helpers.h: Likewise.
	* config/bpf/bpf-helpers.def: Likewise.

gcc/testsuite/ChangeLog:

	* gcc.dg/builtins-config.h: eBPF doesn't support C99 standard
	functions.
	* gcc.c-torture/compile/20101217-1.c: Add a function prototype for
	printf.
	* gcc.c-torture/compile/20000211-1.c: Skip if target bpf-*-*.
	* gcc.c-torture/compile/poor.c: Likewise.
	* gcc.c-torture/compile/pr25311.c: Likewise.
	* gcc.c-torture/compile/pr39928-1.c: Likewise.
	* gcc.c-torture/compile/pr70061.c: Likewise.
	* gcc.c-torture/compile/920501-7.c: Likewise.
	* gcc.c-torture/compile/20000403-1.c: Likewise.
	* gcc.c-torture/compile/20001226-1.c: Likewise.
	* gcc.c-torture/compile/20030903-1.c: Likewise.
	* gcc.c-torture/compile/20031125-1.c: Likewise.
	* gcc.c-torture/compile/20040101-1.c: Likewise.
	* gcc.c-torture/compile/20040317-2.c: Likewise.
	* gcc.c-torture/compile/20040726-1.c: Likewise.
	* gcc.c-torture/compile/20051216-1.c: Likewise.
	* gcc.c-torture/compile/900313-1.c: Likewise.
	* gcc.c-torture/compile/920625-1.c: Likewise.
	* gcc.c-torture/compile/930421-1.c: Likewise.
	* gcc.c-torture/compile/930623-1.c: Likewise.
	* gcc.c-torture/compile/961004-1.c: Likewise.
	* gcc.c-torture/compile/980504-1.c: Likewise.
	* gcc.c-torture/compile/980816-1.c: Likewise.
	* gcc.c-torture/compile/990625-1.c: Likewise.
	* gcc.c-torture/compile/DFcmp.c: Likewise.
	* gcc.c-torture/compile/HIcmp.c: Likewise.
	* gcc.c-torture/compile/HIset.c: Likewise.
	* gcc.c-torture/compile/QIcmp.c: Likewise.
	* gcc.c-torture/compile/QIset.c: Likewise.
	* gcc.c-torture/compile/SFset.c: Likewise.
	* gcc.c-torture/compile/SIcmp.c: Likewise.
	* gcc.c-torture/compile/SIset.c: Likewise.
	* gcc.c-torture/compile/UHIcmp.c: Likewise.
	* gcc.c-torture/compile/UQIcmp.c: Likewise.
	* gcc.c-torture/compile/USIcmp.c: Likewise.
	* gcc.c-torture/compile/consec.c: Likewise.
	* gcc.c-torture/compile/limits-fndefn.c: Likewise.
	* gcc.c-torture/compile/lll.c: Likewise.
	* gcc.c-torture/compile/parms.c: Likewise.
	* gcc.c-torture/compile/pass.c: Likewise.
	* gcc.c-torture/compile/pp.c: Likewise.
	* gcc.c-torture/compile/pr32399.c: Likewise.
	* gcc.c-torture/compile/pr34091.c: Likewise.
	* gcc.c-torture/compile/pr34688.c: Likewise.
	* gcc.c-torture/compile/pr37258.c: Likewise.
	* gcc.c-torture/compile/pr37327.c: Likewise.
	* gcc.c-torture/compile/pr37381.c: Likewise.
	* gcc.c-torture/compile/pr37669-2.c: Likewise.
	* gcc.c-torture/compile/pr37669.c: Likewise.
	* gcc.c-torture/compile/pr37742-3.c: Likewise.
	* gcc.c-torture/compile/pr44063.c: Likewise.
	* gcc.c-torture/compile/pr48596.c: Likewise.
	* gcc.c-torture/compile/pr51856.c: Likewise.
	* gcc.c-torture/compile/pr54428.c: Likewise.
	* gcc.c-torture/compile/pr54713-1.c: Likewise.
	* gcc.c-torture/compile/pr54713-2.c: Likewise.
	* gcc.c-torture/compile/pr54713-3.c: Likewise.
	* gcc.c-torture/compile/pr55921.c: Likewise.
	* gcc.c-torture/compile/pr70240.c: Likewise.
	* gcc.c-torture/compile/pr70355.c: Likewise.
	* gcc.c-torture/compile/pr82052.c: Likewise.
	* gcc.c-torture/compile/pr83487.c: Likewise.
	* gcc.c-torture/compile/pr86122.c: Likewise.
	* gcc.c-torture/compile/pret-arg.c: Likewise.
	* gcc.c-torture/compile/regs-arg-size.c: Likewise.
	* gcc.c-torture/compile/structret.c: Likewise.
	* gcc.c-torture/compile/uuarg.c: Likewise.
	* gcc.dg/20001009-1.c: Likewise.
	* gcc.dg/20020418-1.c: Likewise.
	* gcc.dg/20020426-2.c: Likewise.
	* gcc.dg/20020430-1.c: Likewise.
	* gcc.dg/20040306-1.c: Likewise.
	* gcc.dg/20040622-2.c: Likewise.
	* gcc.dg/20050603-2.c: Likewise.
	* gcc.dg/20050629-1.c: Likewise.
	* gcc.dg/20061026.c: Likewise.
	* gcc.dg/Warray-bounds-3.c: Likewise.
	* gcc.dg/Warray-bounds-30.c: Likewise.
	* gcc.dg/Wframe-larger-than-2.c: Likewise.
	* gcc.dg/Wframe-larger-than.c: Likewise.
	* gcc.dg/Wrestrict-11.c: Likewise.
	* gcc.c-torture/compile/20000804-1.c: Likewise.
	* lib/target-supports.exp (check_effective_target_trampolines):
	Adapt to eBPF.
	(check_effective_target_indirect_jumps): Likewise.
	(check_effective_target_nonlocal_goto): Likewise.
	(check_effective_target_global_constructor): Likewise.
	(check_effective_target_return_address): Likewise.
	* gcc.target/bpf/bpf.exp: New file.
	* gcc.target/bpf/builtin-load.c: Likewise.
	* cc.target/bpf/constant-calls.c: Likewise.
	* gcc.target/bpf/diag-funargs.c: Likewise.
	* gcc.target/bpf/diag-funargs-2.c: Likewise.
	* gcc.target/bpf/diag-funargs-3.c: Likewise.
	* gcc.target/bpf/diag-indcalls.c: Likewise.
	* gcc.target/bpf/helper-bind.c: Likewise.
	* gcc.target/bpf/helper-bpf-redirect.c: Likewise.
	* gcc.target/bpf/helper-clone-redirect.c: Likewise.
	* gcc.target/bpf/helper-csum-diff.c: Likewise.
	* gcc.target/bpf/helper-csum-update.c: Likewise.
	* gcc.target/bpf/helper-current-task-under-cgroup.c: Likewise.
	* gcc.target/bpf/helper-fib-lookup.c: Likewise.
	* gcc.target/bpf/helper-get-cgroup-classid.c: Likewise.
	* gcc.target/bpf/helper-get-current-cgroup-id.c: Likewise.
	* gcc.target/bpf/helper-get-current-comm.c: Likewise.
	* gcc.target/bpf/helper-get-current-pid-tgid.c: Likewise.
	* gcc.target/bpf/helper-get-current-task.c: Likewise.
	* gcc.target/bpf/helper-get-current-uid-gid.c: Likewise.
	* gcc.target/bpf/helper-get-hash-recalc.c: Likewise.
	* gcc.target/bpf/helper-get-listener-sock.c: Likewise.
	* gcc.target/bpf/helper-get-local-storage.c: Likewise.
	* gcc.target/bpf/helper-get-numa-node-id.c: Likewise.
	* gcc.target/bpf/helper-get-prandom-u32.c: Likewise.
	* gcc.target/bpf/helper-get-route-realm.c: Likewise.
	* gcc.target/bpf/helper-get-smp-processor-id.c: Likewise.
	* gcc.target/bpf/helper-get-socket-cookie.c: Likewise.
	* gcc.target/bpf/helper-get-socket-uid.c: Likewise.
	* gcc.target/bpf/helper-getsockopt.c: Likewise.
	* gcc.target/bpf/helper-get-stack.c: Likewise.
	* gcc.target/bpf/helper-get-stackid.c: Likewise.
	* gcc.target/bpf/helper-ktime-get-ns.c: Likewise.
	* gcc.target/bpf/helper-l3-csum-replace.c: Likewise.
	* gcc.target/bpf/helper-l4-csum-replace.c: Likewise.
	* gcc.target/bpf/helper-lwt-push-encap.c: Likewise.
	* gcc.target/bpf/helper-lwt-seg6-action.c: Likewise.
	* gcc.target/bpf/helper-lwt-seg6-adjust-srh.c: Likewise.
	* gcc.target/bpf/helper-lwt-seg6-store-bytes.c: Likewise.
	* gcc.target/bpf/helper-map-delete-elem.c: Likewise.
	* gcc.target/bpf/helper-map-lookup-elem.c: Likewise.
	* gcc.target/bpf/helper-map-peek-elem.c: Likewise.
	* gcc.target/bpf/helper-map-pop-elem.c: Likewise.
	* gcc.target/bpf/helper-map-push-elem.c: Likewise.
	* gcc.target/bpf/helper-map-update-elem.c: Likewise.
	* gcc.target/bpf/helper-msg-apply-bytes.c: Likewise.
	* gcc.target/bpf/helper-msg-cork-bytes.c: Likewise.
	* gcc.target/bpf/helper-msg-pop-data.c: Likewise.
	* gcc.target/bpf/helper-msg-pull-data.c: Likewise.
	* gcc.target/bpf/helper-msg-push-data.c: Likewise.
	* gcc.target/bpf/helper-msg-redirect-hash.c: Likewise.
	* gcc.target/bpf/helper-msg-redirect-map.c: Likewise.
	* gcc.target/bpf/helper-override-return.c: Likewise.
	* gcc.target/bpf/helper-perf-event-output.c: Likewise.
	* gcc.target/bpf/helper-perf-event-read.c: Likewise.
	* gcc.target/bpf/helper-perf-event-read-value.c: Likewise.
	* gcc.target/bpf/helper-perf-prog-read-value.c: Likewise.
	* gcc.target/bpf/helper-probe-read.c: Likewise.
	* gcc.target/bpf/helper-probe-read-str.c: Likewise.
	* gcc.target/bpf/helper-probe-write-user.c: Likewise.
	* gcc.target/bpf/helper-rc-keydown.c: Likewise.
	* gcc.target/bpf/helper-rc-pointer-rel.c: Likewise.
	* gcc.target/bpf/helper-rc-repeat.c: Likewise.
	* gcc.target/bpf/helper-redirect-map.c: Likewise.
	* gcc.target/bpf/helper-set-hash.c: Likewise.
	* gcc.target/bpf/helper-set-hash-invalid.c: Likewise.
	* gcc.target/bpf/helper-setsockopt.c: Likewise.
	* gcc.target/bpf/helper-skb-adjust-room.c: Likewise.
	* gcc.target/bpf/helper-skb-cgroup-id.c: Likewise.
	* gcc.target/bpf/helper-skb-change-head.c: Likewise.
	* gcc.target/bpf/helper-skb-change-proto.c: Likewise.
	* gcc.target/bpf/helper-skb-change-tail.c: Likewise.
	* gcc.target/bpf/helper-skb-change-type.c: Likewise.
	* gcc.target/bpf/helper-skb-ecn-set-ce.c: Likewise.
	* gcc.target/bpf/helper-skb-get-tunnel-key.c: Likewise.
	* gcc.target/bpf/helper-skb-get-tunnel-opt.c: Likewise.
	* gcc.target/bpf/helper-skb-get-xfrm-state.c: Likewise.
	* gcc.target/bpf/helper-skb-load-bytes.c: Likewise.
	* gcc.target/bpf/helper-skb-load-bytes-relative.c: Likewise.
	* gcc.target/bpf/helper-skb-pull-data.c: Likewise.
	* gcc.target/bpf/helper-skb-set-tunnel-key.c: Likewise.
	* gcc.target/bpf/helper-skb-set-tunnel-opt.c: Likewise.
	* gcc.target/bpf/helper-skb-store-bytes.c: Likewise.
	* gcc.target/bpf/helper-skb-under-cgroup.c: Likewise.
	* gcc.target/bpf/helper-skb-vlan-pop.c: Likewise.
	* gcc.target/bpf/helper-skb-vlan-push.c: Likewise.
	* gcc.target/bpf/helper-skc-lookup-tcp.c: Likewise.
	* gcc.target/bpf/helper-sk-fullsock.c: Likewise.
	* gcc.target/bpf/helper-sk-lookup-tcp.c: Likewise.
	* gcc.target/bpf/helper-sk-lookup-upd.c: Likewise.
	* gcc.target/bpf/helper-sk-redirect-hash.c: Likewise.
	* gcc.target/bpf/helper-sk-redirect-map.c: Likewise.
	* gcc.target/bpf/helper-sk-release.c: Likewise.
	* gcc.target/bpf/helper-sk-select-reuseport.c: Likewise.
	* gcc.target/bpf/helper-sk-storage-delete.c: Likewise.
	* gcc.target/bpf/helper-sk-storage-get.c: Likewise.
	* gcc.target/bpf/helper-sock-hash-update.c: Likewise.
	* gcc.target/bpf/helper-sock-map-update.c: Likewise.
	* gcc.target/bpf/helper-sock-ops-cb-flags-set.c: Likewise.
	* gcc.target/bpf/helper-spin-lock.c: Likewise.
	* gcc.target/bpf/helper-spin-unlock.c: Likewise.
	* gcc.target/bpf/helper-strtol.c: Likewise.
	* gcc.target/bpf/helper-strtoul.c: Likewise.
	* gcc.target/bpf/helper-sysctl-get-current-value.c: Likewise.
	* gcc.target/bpf/helper-sysctl-get-name.c: Likewise.
	* gcc.target/bpf/helper-sysctl-get-new-value.c: Likewise.
	* gcc.target/bpf/helper-sysctl-set-new-value.c: Likewise.
	* gcc.target/bpf/helper-tail-call.c: Likewise.
	* gcc.target/bpf/helper-tcp-check-syncookie.c: Likewise.
	* gcc.target/bpf/helper-tcp-sock.c: Likewise.
	* gcc.target/bpf/helper-trace-printk.c: Likewise.
	* gcc.target/bpf/helper-xdp-adjust-head.c: Likewise.
	* gcc.target/bpf/helper-xdp-adjust-meta.c: Likewise.
	* gcc.target/bpf/helper-xdp-adjust-tail.c: Likewise.
	* gcc.target/bpf/skb-ancestor-cgroup-id.c: Likewise.
	* gcc.target/bpf/sync-fetch-and-add.c: Likewise.

libgcc/ChangeLog:

	* config.host: Set cpu_type for bpf-*-* targets.
	* config/bpf/t-bpf: Likewise.
	* config/bpf/crtn.S: Likewise.
	* config/bpf/crti.S: New file.

From-SVN: r275506

ChangeLog

 2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
 
+	* MAINTAINERS: Add myself as the maintainer of the eBPF port.
+	Remove myself from Write After Approval section.
+
+2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
+
+	* configure.ac: Support for bpf-*-* targets.
+	* configure: Regenerate.
+
+2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
+
 	* config.sub: Import upstream version 2019-06-30.
 	* config.guess: Import upstream version 2019-07-24.
 

MAINTAINERS

@@ -57,6 +57,7 @@ arm port		Ramana Radhakrishnan	<ramana.radhakrishnan@arm.com>
 arm port		Kyrylo Tkachov		<kyrylo.tkachov@arm.com>
 avr port		Denis Chertykov		<chertykov@gmail.com>
 bfin port		Jie Zhang		<jzhang918@gmail.com>
+bpf port		Jose E. Marchesi	<jose.marchesi@oracle.com>
 c6x port		Bernd Schmidt		<bernds_cb1@t-online.de>
 cris port		Hans-Peter Nilsson	<hp@axis.com>
 c-sky port		Xianmiao Qu		<xianmiao_qu@c-sky.com>
@@ -494,7 +495,6 @@ Luis Machado					<luisgpm@br.ibm.com>
 Ziga Mahkovec					<ziga.mahkovec@klika.si>
 Matthew Malcomson				<matthew.malcomson@arm.com>
 Mikhail Maltsev					<maltsevm@gmail.com>
-Jose E. Marchesi				<jose.marchesi@oracle.com>
 Patrick Marlier					<patrick.marlier@gmail.com>
 Simon Martin					<simartin@users.sourceforge.net>
 Alejandro Martinez				<alejandro.martinezvicente@arm.com>

configure

@@ -3357,6 +3357,9 @@ case "${target}" in
     # No hosted I/O support.
     noconfigdirs="$noconfigdirs target-libssp"
     ;;
+  bpf-*-*)
+    noconfigdirs="$noconfigdirs target-libssp"
+    ;;
   powerpc-*-aix* | rs6000-*-aix*)
     noconfigdirs="$noconfigdirs target-libssp"
     ;;
@@ -3391,12 +3394,43 @@ if test "${ENABLE_LIBSTDCXX}" = "default" ; then
     avr-*-*)
       noconfigdirs="$noconfigdirs target-libstdc++-v3"
       ;;
+    bpf-*-*)
+      noconfigdirs="$noconfigdirs target-libstdc++-v3"
+      ;;
     ft32-*-*)
       noconfigdirs="$noconfigdirs target-libstdc++-v3"
       ;;
   esac
 fi
 
+# Disable C++ on systems where it is known to not work.
+# For testing, you can override this with --enable-languages=c++.
+case ,${enable_languages}, in
+  *,c++,*)
+    ;;
+  *)
+      case "${target}" in
+        bpf-*-*)
+          unsupported_languages="$unsupported_languages c++"
+          ;;
+      esac
+      ;;
+esac
+
+# Disable Objc on systems where it is known to not work.
+# For testing, you can override this with --enable-languages=objc.
+case ,${enable_languages}, in
+  *,objc,*)
+    ;;
+  *)
+      case "${target}" in
+        bpf-*-*)
+          unsupported_languages="$unsupported_languages objc"
+          ;;
+      esac
+      ;;
+esac
+
 # Disable D on systems where it is known to not work.
 # For testing, you can override this with --enable-languages=d.
 case ,${enable_languages}, in
@@ -3406,6 +3440,9 @@ case ,${enable_languages}, in
     case "${target}" in
       *-*-darwin*)
 	unsupported_languages="$unsupported_languages d"
+        ;;
+      bpf-*-*)
+	unsupported_languages="$unsupported_languages d"
 	;;
     esac
     ;;
@@ -3437,6 +3474,9 @@ case "${target}" in
     # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
     unsupported_languages="$unsupported_languages fortran"
     ;;
+  bpf-*-*)
+    unsupported_languages="$unsupported_languages fortran"
+    ;;
 esac
 
 # Disable libffi for some systems.
@@ -3483,6 +3523,9 @@ case "${target}" in
   arm*-*-symbianelf*)
     noconfigdirs="$noconfigdirs target-libffi"
     ;;
+  bpf-*-*)
+    noconfigdirs="$noconfigdirs target-libffi"
+    ;;
   cris-*-* | crisv32-*-*)
     case "${target}" in
       *-*-linux*)
@@ -3529,7 +3572,7 @@ esac
 # Disable the go frontend on systems where it is known to not work. Please keep
 # this in sync with contrib/config-list.mk.
 case "${target}" in
-*-*-darwin* | *-*-cygwin* | *-*-mingw*)
+*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
     unsupported_languages="$unsupported_languages go"
     ;;
 esac
@@ -3545,6 +3588,9 @@ if test x$enable_libgo = x; then
     *-*-cygwin* | *-*-mingw*)
 	noconfigdirs="$noconfigdirs target-libgo"
 	;;
+    bpf-*-*)
+        noconfigdirs="$noconfigdirs target-libgo"
+        ;;
     esac
 fi
 
@@ -3616,6 +3662,9 @@ case "${target}" in
   sparc-*-sunos4*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
+  bpf-*-*)
+    noconfigdirs="$noconfigdirs target-newlib target-libgloss"
+    ;;
   *-*-aix*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
@@ -3729,6 +3778,9 @@ case "${target}" in
     # newlib is not 64 bit ready
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
+  bpf-*-*)
+    noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
+    ;;
   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
     ;;

configure.ac

@@ -638,6 +638,9 @@ case "${target}" in
     # No hosted I/O support.
     noconfigdirs="$noconfigdirs target-libssp"
     ;;
+  bpf-*-*)
+    noconfigdirs="$noconfigdirs target-libssp"
+    ;;
   powerpc-*-aix* | rs6000-*-aix*)
     noconfigdirs="$noconfigdirs target-libssp"
     ;;
@@ -672,12 +675,43 @@ if test "${ENABLE_LIBSTDCXX}" = "default" ; then
     avr-*-*)
       noconfigdirs="$noconfigdirs target-libstdc++-v3"
       ;;
+    bpf-*-*)
+      noconfigdirs="$noconfigdirs target-libstdc++-v3"
+      ;;
     ft32-*-*)
       noconfigdirs="$noconfigdirs target-libstdc++-v3"
       ;;
   esac
 fi
 
+# Disable C++ on systems where it is known to not work.
+# For testing, you can override this with --enable-languages=c++.
+case ,${enable_languages}, in
+  *,c++,*)
+    ;;
+  *)
+      case "${target}" in
+        bpf-*-*)
+          unsupported_languages="$unsupported_languages c++"
+          ;;
+      esac
+      ;;
+esac
+
+# Disable Objc on systems where it is known to not work.
+# For testing, you can override this with --enable-languages=objc.
+case ,${enable_languages}, in
+  *,objc,*)
+    ;;
+  *)
+      case "${target}" in
+        bpf-*-*)
+          unsupported_languages="$unsupported_languages objc"
+          ;;
+      esac
+      ;;
+esac
+
 # Disable D on systems where it is known to not work.
 # For testing, you can override this with --enable-languages=d.
 case ,${enable_languages}, in
@@ -687,6 +721,9 @@ case ,${enable_languages}, in
     case "${target}" in
       *-*-darwin*)
 	unsupported_languages="$unsupported_languages d"
+        ;;
+      bpf-*-*)
+	unsupported_languages="$unsupported_languages d"
 	;;
     esac
     ;;
@@ -715,6 +752,9 @@ case "${target}" in
     # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
     unsupported_languages="$unsupported_languages fortran"
     ;;
+  bpf-*-*)
+    unsupported_languages="$unsupported_languages fortran"
+    ;;
 esac
 
 # Disable libffi for some systems.
@@ -761,6 +801,9 @@ case "${target}" in
   arm*-*-symbianelf*)
     noconfigdirs="$noconfigdirs target-libffi"
     ;;
+  bpf-*-*)
+    noconfigdirs="$noconfigdirs target-libffi"
+    ;;
   cris-*-* | crisv32-*-*)
     case "${target}" in
       *-*-linux*)
@@ -807,7 +850,7 @@ esac
 # Disable the go frontend on systems where it is known to not work. Please keep
 # this in sync with contrib/config-list.mk.
 case "${target}" in
-*-*-darwin* | *-*-cygwin* | *-*-mingw*)
+*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
     unsupported_languages="$unsupported_languages go"
     ;;
 esac
@@ -823,6 +866,9 @@ if test x$enable_libgo = x; then
     *-*-cygwin* | *-*-mingw*)
 	noconfigdirs="$noconfigdirs target-libgo"
 	;;
+    bpf-*-*)
+        noconfigdirs="$noconfigdirs target-libgo"
+        ;;
     esac
 fi
 
@@ -894,6 +940,9 @@ case "${target}" in
   sparc-*-sunos4*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
+  bpf-*-*)
+    noconfigdirs="$noconfigdirs target-newlib target-libgloss"
+    ;;
   *-*-aix*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
@@ -1007,6 +1056,9 @@ case "${target}" in
     # newlib is not 64 bit ready
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
+  bpf-*-*)
+    noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
+    ;;
   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
     ;;

contrib/ChangeLog

+2019-09-09  Jose E. Marchesi  <jemarch@gnu.org>
+
+	* config-list.mk (LIST): Disable go in bpf-*-* targets.
+
 2019-09-04  Martin Liska  <mliska@suse.cz>
 
 	* mklog: Do not print changed functions for

contrib/config-list.mk

@@ -40,6 +40,7 @@ LIST = aarch64-elf aarch64-linux-gnu aarch64-rtems \
   arm-linux-androideabi arm-uclinux_eabi arm-eabi arm-rtems \
   arm-symbianelf avr-elf \
   bfin-elf bfin-uclinux bfin-linux-uclibc bfin-rtems bfin-openbsd \
+  bpf-unknown-none \
   c6x-elf c6x-uclinux cr16-elf cris-elf cris-linux crisv32-elf crisv32-linux \
   csky-elf csky-linux-gnu \
   epiphany-elf epiphany-elfOPT-with-stack-offset=16 fido-elf \
@@ -123,7 +124,7 @@ $(LIST): make-log-dir
 		TGT=`echo $@ | awk 'BEGIN { FS = "OPT" }; { print $$1 }'` &&			\
 		TGT=`$(GCC_SRC_DIR)/config.sub $$TGT` &&					\
 		case $$TGT in									\
-			*-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)			\
+			*-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix* | bpf-*-*)			\
 				ADDITIONAL_LANGUAGES="";					\
 				;;								\
 			*)									\

gcc/ChangeLog

 2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
 
+	* doc/invoke.texi (Option Summary): Cover eBPF.
+	(eBPF Options): New section.
+	* doc/extend.texi (BPF Built-in Functions): Likewise.
+	(BPF Kernel Helpers): Likewise.
+
+2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
+
+	* config.gcc: Support for bpf-*-* targets.
+	* common/config/bpf/bpf-common.c: New file.
+	* config/bpf/t-bpf: Likewise.
+	* config/bpf/predicates.md: Likewise.
+	* config/bpf/constraints.md: Likewise.
+	* config/bpf/bpf.opt: Likewise.
+	* config/bpf/bpf.md: Likewise.
+	* config/bpf/bpf.h: Likewise.
+	* config/bpf/bpf.c: Likewise.
+	* config/bpf/bpf-protos.h: Likewise.
+	* config/bpf/bpf-opts.h: Likewise.
+	* config/bpf/bpf-helpers.h: Likewise.
+	* config/bpf/bpf-helpers.def: Likewise.
+
+2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
+
 	* doc/sourcebuild.texi (Effective-Target Keywords): Document
 	indirect_calls.
 

gcc/common/config/bpf/bpf-common.c

+/* Common hooks for eBPF.
+   Copyright (C) 2019 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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, or (at your option)
+any later version.
+
+GCC 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 GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "common/common-target.h"
+#include "common/common-target-def.h"
+#include "config/bpf/bpf-protos.h"
+
+#undef TARGET_DEFAULT_TARGET_FLAGS
+#define TARGET_DEFAULT_TARGET_FLAGS 0
+
+/* Implement TARGET_OPTION_OPTIMIZATION_TABLE.  */
+static const struct default_options bpf_option_optimization_table[] =
+  {
+    /* Enable -funroll-all-loops by default.  */
+    { OPT_LEVELS_ALL, OPT_funroll_all_loops, NULL, 1 },
+    { OPT_LEVELS_NONE, 0, NULL, 0 }
+  };
+
+#undef TARGET_OPTION_OPTIMIZATION_TABLE
+#define TARGET_OPTION_OPTIMIZATION_TABLE bpf_option_optimization_table
+
+/* Implement TARGET_OPTION_DEFAULT_PARAMS.  */
+
+static void
+bpf_option_default_params (void)
+{
+  /* XXX large-stack-frame = 512 bytes */
+  /* XXX max-unrolled-insns */
+  /* XXX max-unroll-times */
+}
+
+#undef TARGET_OPTION_DEFAULT_PARAMS
+#define TARGET_OPTION_DEFAULT_PARAMS bpf_option_default_params
+
+struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;

gcc/config.gcc

@@ -360,6 +360,9 @@ avr-*-*)
 bfin*-*)
 	cpu_type=bfin
 	;;
+bpf-*-*)
+	cpu_type=bpf
+	;;
 crisv32-*)
 	cpu_type=cris
 	;;
@@ -1308,6 +1311,12 @@ bfin*-*)
 	use_collect2=no
 	use_gcc_stdint=wrap
 	;;
+bpf-*-*)
+        tmake_file="${tmake_file} bpf/t-bpf"
+        use_collect2=no
+        extra_headers="bpf-helpers.h"
+        use_gcc_stdint=provide
+        ;;
 cr16-*-elf)
         tm_file="elfos.h ${tm_file} newlib-stdint.h"
         tmake_file="${tmake_file} cr16/t-cr16 "

gcc/config/bpf/bpf-opts.h

+/* Definitions for option handling for eBPF.
+   Copyright (C) 2019 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC 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, or (at your option)
+   any later version.
+
+   GCC 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 GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef BPF_OPTS_H
+#define BPF_OPTS_H
+
+/* Supported versions of the Linux kernel.  */
+enum bpf_kernel_version
+{
+  /* Linux 4.x */
+  LINUX_V4_0,
+  LINUX_V4_1,
+  LINUX_V4_2,
+  LINUX_V4_3,
+  LINUX_V4_4,
+  LINUX_V4_5,
+  LINUX_V4_6,
+  LINUX_V4_7,
+  LINUX_V4_8,
+  LINUX_V4_9,
+  LINUX_V4_10,
+  LINUX_V4_11,
+  LINUX_V4_12,
+  LINUX_V4_13,
+  LINUX_V4_14,
+  LINUX_V4_15,
+  LINUX_V4_16,
+  LINUX_V4_17,
+  LINUX_V4_18,
+  LINUX_V4_19,
+  LINUX_V4_20,
+  /* Linux 5.x  */
+  LINUX_V5_0,
+  LINUX_V5_1,
+  LINUX_V5_2,
+  LINUX_LATEST = LINUX_V5_2,
+  LINUX_NATIVE,
+};
+
+#endif /* ! BPF_OPTS_H */

gcc/config/bpf/bpf-protos.h

+/* Definition of eBPF target for GNU compiler.
+   Copyright (C) 2019 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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, or (at your option)
+any later version.
+
+GCC 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 GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_BPF_PROTOS_H
+#define GCC_BPF_PROTOS_H
+
+/* Routines implemented in bpf.c.  */
+
+extern HOST_WIDE_INT bpf_initial_elimination_offset (int, int);
+extern const char *bpf_output_call (rtx);
+extern void bpf_target_macros (cpp_reader *);
+extern void bpf_print_operand (FILE *, rtx, int);
+extern void bpf_print_operand_address (FILE *, rtx);
+extern void bpf_expand_prologue (void);
+extern void bpf_expand_epilogue (void);
+
+#endif /* ! GCC_BPF_PROTOS_H */

gcc/config/bpf/bpf.opt

+; Options for the eBPF compiler port.
+
+; Copyright (C) 2019 Free Software Foundation, Inc.
+;
+; This file is part of GCC.
+;
+; GCC 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, or (at your option) any later
+; version.
+;
+; GCC 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 GCC; see the file COPYING3.  If not see
+; <http://www.gnu.org/licenses/>.
+
+HeaderInclude
+config/bpf/bpf-opts.h
+
+; Selecting the kind of kernel the eBPF will be running on.
+
+mkernel=
+Target RejectNegative Joined Var(bpf_kernel) Enum(bpf_kernel) Init(LINUX_LATEST)
+Generate eBPF for the given Linux kernel version.
+
+Enum
+Name(bpf_kernel) Type(enum bpf_kernel_version)
+
+EnumValue
+Enum(bpf_kernel) String(native) Value(LINUX_NATIVE) DriverOnly
+
+EnumValue
+Enum(bpf_kernel) String(latest) Value(LINUX_LATEST) DriverOnly
+
+EnumValue
+Enum(bpf_kernel) String(4.0) Value(LINUX_V4_0)
+
+EnumValue
+Enum(bpf_kernel) String(4.1) Value(LINUX_V4_1)
+
+EnumValue
+Enum(bpf_kernel) String(4.2) Value(LINUX_V4_2)
+
+EnumValue
+Enum(bpf_kernel) String(4.3) Value(LINUX_V4_3)
+
+EnumValue
+Enum(bpf_kernel) String(4.4) Value(LINUX_V4_4)
+
+EnumValue
+Enum(bpf_kernel) String(4.5) Value(LINUX_V4_5)
+
+EnumValue
+Enum(bpf_kernel) String(4.6) Value(LINUX_V4_6)
+
+EnumValue
+Enum(bpf_kernel) String(4.7) Value(LINUX_V4_7)
+
+EnumValue
+Enum(bpf_kernel) String(4.8) Value(LINUX_V4_8)
+
+EnumValue
+Enum(bpf_kernel) String(4.9) Value(LINUX_V4_9)
+
+EnumValue
+Enum(bpf_kernel) String(4.10) Value(LINUX_V4_10)
+
+EnumValue
+Enum(bpf_kernel) String(4.11) Value(LINUX_V4_11)
+
+EnumValue
+Enum(bpf_kernel) String(4.12) Value(LINUX_V4_12)
+
+EnumValue
+Enum(bpf_kernel) String(4.13) Value(LINUX_V4_13)
+
+EnumValue
+Enum(bpf_kernel) String(4.14) Value(LINUX_V4_14)
+
+EnumValue
+Enum(bpf_kernel) String(4.15) Value(LINUX_V4_15)
+
+EnumValue
+Enum(bpf_kernel) String(4.16) Value(LINUX_V4_16)
+
+EnumValue
+Enum(bpf_kernel) String(4.17) Value(LINUX_V4_17)
+
+EnumValue
+Enum(bpf_kernel) String(4.18) Value(LINUX_V4_18)
+
+EnumValue
+Enum(bpf_kernel) String(4.19) Value(LINUX_V4_19)
+
+EnumValue
+Enum(bpf_kernel) String(4.20) Value(LINUX_V4_20)
+
+EnumValue
+Enum(bpf_kernel) String(5.0) Value(LINUX_V5_0)
+
+EnumValue
+Enum(bpf_kernel) String(5.1) Value(LINUX_V5_1)
+
+EnumValue
+Enum(bpf_kernel) String(5.2) Value(LINUX_V5_2)
+
+; Selecting big endian or little endian targets.
+
+mbig-endian
+Target RejectNegative Report Mask(BIG_ENDIAN)
+Generate big-endian eBPF.
+
+mlittle-endian
+Target RejectNegative Report InverseMask(BIG_ENDIAN)
+Generate little-endian eBPF.
+
+mframe-limit=
+Target Joined RejectNegative UInteger IntegerRange(0, 32767) Var(bpf_frame_limit) Init(512)
+Set a hard limit for the size of each stack frame, in bytes.

gcc/config/bpf/constraints.md

+;; Constraint definitions for eBPF.
+;; Copyright (C) 2019 Free Software Foundation, Inc.
+;;
+;; This file is part of GCC.
+;;
+;; GCC 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, or (at your option)
+;; any later version.
+;;
+;; GCC 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 GCC; see the file COPYING3.  If not see
+;; <http://www.gnu.org/licenses/>.
+
+(define_constraint "I"
+  "A 32-bit signed immediate."
+  (and (match_code "const_int")
+       (match_test "IN_RANGE (ival, -1 - 0x7fffffff, 0x7fffffff)")))
+
+(define_constraint "B"
+  "A constant argument for LDDW."
+  (match_code "const,symbol_ref,label_ref,const_double,const_int"))
+
+(define_constraint "S"
+  "A constant call address."
+  (match_code "const,symbol_ref,label_ref,const_int"))
+

gcc/config/bpf/predicates.md

+;; Predicate definitions for eBPF.
+;; Copyright (C) 2019 Free Software Foundation, Inc.
+;;
+;; This file is part of GCC.
+;;
+;; GCC 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, or (at your option)
+;; any later version.
+;;
+;; GCC 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 GCC; see the file COPYING3.  If not see
+;; <http://www.gnu.org/licenses/>.
+
+(define_predicate "reg_or_imm_operand"
+  (ior (and (match_code "const_int")
+            (match_test "IN_RANGE (INTVAL (op), -1 - 0x7fffffff, 0x7fffffff)"))
+       (match_operand 0 "register_operand")))
+
+(define_predicate "imm32_operand"
+  (ior (and (match_code "const_int")
+            (match_test "IN_RANGE (INTVAL (op), 0, 0xffffffff)"))
+       (match_code "symbol_ref,label_ref,const")))
+
+(define_predicate "lddw_operand"
+  (match_code "symbol_ref,label_ref,const,const_double,const_int"))
+
+(define_predicate "call_operand"
+  (match_code "reg,symbol_ref,const_int,const")
+{
+  if (GET_CODE (op) == CONST)
+    {
+      op = XEXP (op, 0);
+
+      switch (GET_CODE (op))
+	{
+	case SYMBOL_REF:
+	case LABEL_REF:
+	case CONST_INT:
+	  return true;
+	  break;
+	default:
+	  break;
+	}
+
+      return false;
+    }
+
+  return true;
+})
+
+(define_predicate "mov_src_operand"
+  (ior (match_operand 0 "memory_operand")
+       (match_operand 0 "reg_or_imm_operand")
+       (match_operand 0 "lddw_operand")))
+
+(define_predicate "register_compare_operator"
+  (match_code "eq,ne,geu,gtu,ge,gt"))
+

gcc/doc/invoke.texi

@@ -802,6 +802,10 @@ Objective-C and Objective-C++ Dialects}.
 -msmall-text  -mlarge-text @gol
 -mmemory-latency=@var{time}}
 
+@emph{eBPF Options}
+@gccoptlist{-mbig-endian -mlittle-endian -mkernel=@var{version}
+-mframe-limit=@var{bytes}}
+
 @emph{FR30 Options}
 @gccoptlist{-msmall-model  -mno-lsim}
 
@@ -15650,6 +15654,7 @@ platform.
 * C-SKY Options::
 * Darwin Options::
 * DEC Alpha Options::
+* eBPF Options::
 * FR30 Options::
 * FT32 Options::
 * FRV Options::
@@ -19771,6 +19776,38 @@ Note that L3 is only valid for EV5.
 @end table
 @end table
 
+@node eBPF Options
+@subsection eBPF Options
+@cindex eBPF Options
+
+@table @gcctabopt
+@item -mframe-limit=@var{bytes}
+This specifies the hard limit for frame sizes, in bytes.  Currently,
+the value that can be specified should be less than or equal to
+@samp{32767}.  Defaults to whatever limit is imposed by the version of
+the Linux kernel targeted.
+
+@item -mkernel=@var{version}
+@opindex mkernel
+This specifies the minimum version of the kernel that will run the
+compiled program.  GCC uses this version to determine which
+instructions to use, what kernel helpers to allow, etc.  Currently,
+@var{version} can be one of @samp{4.0}, @samp{4.1}, @samp{4.2},
+@samp{4.3}, @samp{4.4}, @samp{4.5}, @samp{4.6}, @samp{4.7},
+@samp{4.8}, @samp{4.9}, @samp{4.10}, @samp{4.11}, @samp{4.12},
+@samp{4.13}, @samp{4.14}, @samp{4.15}, @samp{4.16}, @samp{4.17},
+@samp{4.18}, @samp{4.19}, @samp{4.20}, @samp{5.0}, @samp{5.1},
+@samp{5.2}, @samp{latest} and @samp{native}.
+
+@item -mbig-endian
+@opindex mbig-endian
+Generate code for a big-endian target.
+
+@item -mlittle-endian
+@opindex mlittle-endian
+Generate code for a little-endian target.  This is the default.
+@end table
+
 @node FR30 Options
 @subsection FR30 Options
 @cindex FR30 Options

gcc/testsuite/gcc.c-torture/compile/20000211-1.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef __SIZE_TYPE__ size_t;
 typedef unsigned char Bufbyte;
 typedef int Bytecount;

gcc/testsuite/gcc.c-torture/compile/20000403-1.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 struct utsname {
 	char	sysname[32 ];	 
 	char	version[32 ];	 

gcc/testsuite/gcc.c-torture/compile/20000804-1.c

@@ -5,6 +5,7 @@
 /* { dg-skip-if "No 64-bit registers" { m32c-*-* } } */
 /* { dg-skip-if "Not enough 64-bit registers" { pdp11-*-* } { "-O0" } { "" } } */
 /* { dg-xfail-if "Inconsistent constraint on asm" { csky-*-* } { "-O0" } { "" } } */
+/* { dg-xfail-if "Inconsistent constraint on asm" { bpf-*-* } { "-O0" } { "" } } */
 /* { dg-xfail-if "" { h8300-*-* } } */
 /* { dg-require-stack-size "99*4+16" } */
 

gcc/testsuite/gcc.c-torture/compile/20001226-1.c

@@ -2,6 +2,7 @@
 /* { dg-skip-if "too much code for avr" { "avr-*-*" } } */
 /* { dg-skip-if "too much code for pdp11" { "pdp11-*-*" } } */
 /* { dg-skip-if "" { m32c-*-* } } */
+/* { dg-skip-if "jumps too far for eBPF" { bpf-*-* } } */
 /* { dg-timeout-factor 4.0 } */
 
 /* This testcase exposed two branch shortening bugs on powerpc.  */

gcc/testsuite/gcc.c-torture/compile/20030903-1.c

 /* Derived from PR optimization/11700.  */
 /* The compiler used to ICE during reload for m68k targets.  */
 
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
+
 void check_complex (__complex__ double, __complex__ double,
                     __complex__ double, __complex__ int);
 void check_float (double, double, double, int);

gcc/testsuite/gcc.c-torture/compile/20031125-1.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 short *_offsetTable;
 /* This tests to make sure PRE splits the entry block ->block 0 edge
    when there are multiple block 0 predecessors.

gcc/testsuite/gcc.c-torture/compile/20040101-1.c

 /* { dg-skip-if "not enough registers" { pdp11-*-* } } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 typedef unsigned short uint16_t;
 typedef unsigned int uint32_t;

gcc/testsuite/gcc.c-torture/compile/20040317-2.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef struct _ScaleRec *ScaleWidget;
 typedef struct
 {

gcc/testsuite/gcc.c-torture/compile/20040726-1.c

 /* PR rtl-optimization/16643 */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 void foo (int a, int b, int c, int d, int e, int *f)
 {
   if (a == 0)

gcc/testsuite/gcc.c-torture/compile/20051216-1.c

 /* PR rtl-optimization/25432 */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 void *malloc (__SIZE_TYPE__);
 void *realloc (void *, __SIZE_TYPE__);

gcc/testsuite/gcc.c-torture/compile/20101217-1.c

 /* Testcase provided by HUAWEI.  */
-#include <stdio.h>
+
+extern int printf (const char * __format, ...);
+
 int main()
 {
         int cur_k;

gcc/testsuite/gcc.c-torture/compile/900313-1.c

 /* { dg-require-effective-target alloca } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 main ()
 {
   char *a;

gcc/testsuite/gcc.c-torture/compile/920501-7.c

 /* { dg-require-effective-target label_values } */
+/* { dg-skip-if "no support for indirect jumps" { bpf-*-* } } */
 
 x(){if(&&e-&&b<0)x();b:goto*&&b;e:;}

gcc/testsuite/gcc.c-torture/compile/920625-1.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef unsigned long int unsigned_word;
 typedef signed long int signed_word;
 typedef unsigned_word word;

gcc/testsuite/gcc.c-torture/compile/930421-1.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 double q(double);
 
 f (int **x, int *r, int *s, int a, int b, int c, int d)

gcc/testsuite/gcc.c-torture/compile/930623-1.c

 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-skip-if "no __builtin_apply in eBPF" { bpf-*-* } } */
 
 g (a, b) {}
 

gcc/testsuite/gcc.c-torture/compile/961004-1.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 void
 f1 (o1, o2, o3, i, j, k)
      long long *o1, *o2, *o3;

gcc/testsuite/gcc.c-torture/compile/980504-1.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef struct _geom_elem {
   double        coeffs[6];
 } pGeomDefRec, *pGeomDefPtr;

gcc/testsuite/gcc.c-torture/compile/980816-1.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef __SIZE_TYPE__ size_t;
 typedef void *XtPointer;
 

gcc/testsuite/gcc.c-torture/compile/990625-1.c

+/* { dg-skip-if "no string.h in eBPF" { bpf-*-* } } */
+
 #define __USE_STRING_INLINES
 #include <string.h>
 

gcc/testsuite/gcc.c-torture/compile/DFcmp.c

 /* { dg-require-effective-target int32plus } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define type double
 
 type glob0, glob1;

gcc/testsuite/gcc.c-torture/compile/HIcmp.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define type short
 
 type glob0, glob1;

gcc/testsuite/gcc.c-torture/compile/HIset.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define E0 ((type *)10000000)
 #define reg0 r0
 #define indreg0 (*p0)

gcc/testsuite/gcc.c-torture/compile/QIcmp.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define type signed char
 
 type glob0, glob1;

gcc/testsuite/gcc.c-torture/compile/QIset.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define E0 ((type *)10000000)
 #define reg0 r0
 #define indreg0 (*p0)

gcc/testsuite/gcc.c-torture/compile/SFset.c

 /* { dg-require-effective-target int32plus } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 #define E0 ((type *)10000000)
 #define reg0 r0

gcc/testsuite/gcc.c-torture/compile/SIcmp.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define type int
 
 type glob0, glob1;

gcc/testsuite/gcc.c-torture/compile/SIset.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define E0 ((type *)10000000)
 #define reg0 r0
 #define indreg0 (*p0)

gcc/testsuite/gcc.c-torture/compile/UHIcmp.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define type unsigned short
 
 type glob0, glob1;

gcc/testsuite/gcc.c-torture/compile/UQIcmp.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define type unsigned char
 
 type glob0, glob1;

gcc/testsuite/gcc.c-torture/compile/USIcmp.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 #define type unsigned int
 
 type glob0, glob1;

gcc/testsuite/gcc.c-torture/compile/consec.c

 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 int glob;
 
 conseq (a, b, c, d)

gcc/testsuite/gcc.c-torture/compile/limits-fndefn.c

 /* { dg-skip-if "too complex for avr" { avr-*-* } } */
 /* { dg-skip-if "ptxas times out" { nvptx-*-* } } */
+/* { dg-skip-if "no chance for bpf" { bpf-*-* } } */
 /* { dg-timeout-factor 4.0 } */
 #define LIM1(x) x##0, x##1, x##2, x##3, x##4, x##5, x##6, x##7, x##8, x##9,
 #define LIM2(x) LIM1(x##0) LIM1(x##1) LIM1(x##2) LIM1(x##3) LIM1(x##4) \

gcc/testsuite/gcc.c-torture/compile/lll.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 byte_match_count2 (buf, n, xm, m1, m2, m3, m4)
      unsigned *buf;

gcc/testsuite/gcc.c-torture/compile/parms.c

 /* { dg-require-effective-target alloca } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 #define alloca __builtin_alloca
 
 x (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, x, y)

gcc/testsuite/gcc.c-torture/compile/pass.c

 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 int
 foo (a, b, c)
 {

gcc/testsuite/gcc.c-torture/compile/poor.c

+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
+
 typedef struct
 {
 	char	c[510];

gcc/testsuite/gcc.c-torture/compile/pp.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 foo (a, b, c, d, e, i0, f, i1)
      double a, b, c, d, e, f;
      int i0, i1;

gcc/testsuite/gcc.c-torture/compile/pr25311.c

+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 
 struct w
 {

gcc/testsuite/gcc.c-torture/compile/pr32399.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 void f(unsigned char *src, unsigned char *dst, int num, unsigned char *pos, unsigned char *diffuse, int hasdiffuse, unsigned char *specular, int hasspecular) {
     int i;
 

gcc/testsuite/gcc.c-torture/compile/pr34091.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef unsigned int GLenum;
 typedef unsigned char GLboolean;
 typedef int GLint;

gcc/testsuite/gcc.c-torture/compile/pr34688.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef __SIZE_TYPE__ size_t;
          typedef struct {
         }

gcc/testsuite/gcc.c-torture/compile/pr37258.c

 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef signed char int8_t;
 typedef short int int16_t;
 typedef int int32_t;

gcc/testsuite/gcc.c-torture/compile/pr37327.c

 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef signed char int8_t;
 typedef short int int16_t;
 typedef int int32_t;

gcc/testsuite/gcc.c-torture/compile/pr37381.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 extern unsigned int __invalid_size_argument_for_IOC;
 typedef unsigned int __u32;
 struct video_window

gcc/testsuite/gcc.c-torture/compile/pr37669-2.c

 /* PR middle-end/37669 */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 #define FMT10 "%d%d%d%d%d%d%d%d%d%d"
 #define FMT100 FMT10 FMT10 FMT10 FMT10 FMT10 FMT10 FMT10 FMT10 FMT10 FMT10

gcc/testsuite/gcc.c-torture/compile/pr37669.c

 /* This testcase used to fail because a miscompiled execute_fold_all_builtins. */
 /* { dg-options "-fgnu89-inline" } */
 /* { dg-require-effective-target int32plus } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 typedef __SIZE_TYPE__ size_t;
 extern __inline __attribute__ ((__always_inline__)) int __attribute__

gcc/testsuite/gcc.c-torture/compile/pr37742-3.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 void matmul_i4 (int * __restrict dest_y,
 		const int * __restrict abase,
 		const int * __restrict bbase_y,

gcc/testsuite/gcc.c-torture/compile/pr39928-1.c

 /* { dg-options "-msse" { target { i?86-*-* x86_64-*-* } } } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef float __m128 __attribute__ ((__vector_size__ (16), __may_alias__));
 extern __m128 _mm_sub_ps (__m128 __A, __m128 __B);
 extern __m128 _mm_mul_ps (__m128 __A, __m128 __B);

gcc/testsuite/gcc.c-torture/compile/pr44063.c

+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
+
 typedef signed char int8_t;
 typedef short int16_t;
 typedef unsigned char uint8_t;

gcc/testsuite/gcc.c-torture/compile/pr48596.c

 /* PR target/48596  */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 enum { nrrdCenterUnknown, nrrdCenterNode, nrrdCenterCell, nrrdCenterLast };
 typedef struct { int size; int center; }  NrrdAxis;
 typedef struct { int dim; NrrdAxis axis[10]; } Nrrd;

gcc/testsuite/gcc.c-torture/compile/pr51856.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 struct B { int b1; long long b2, b3; int b4; };
 struct C { char c1[40], c2, c3[96]; long long c4[5], c5; char c6[596]; };
 void fn1 (long long), fn2 (char *, int), fn4 (void);

gcc/testsuite/gcc.c-torture/compile/pr54428.c

 /* PR c/54428 */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 typedef double _Complex C;
 

gcc/testsuite/gcc.c-torture/compile/pr54713-1.c

 /* PR tree-optimization/54713 */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 
 #ifndef N
 #define N 8

gcc/testsuite/gcc.c-torture/compile/pr54713-2.c

 /* PR tree-optimization/54713 */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 
 #define N 16
 #define ONE 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

gcc/testsuite/gcc.c-torture/compile/pr54713-3.c

 /* PR tree-optimization/54713 */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 
 #define N 32
 #define ONE 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \

gcc/testsuite/gcc.c-torture/compile/pr55921.c

 /* PR tree-optimization/55921 */
 /* { dg-skip-if "Not enough registers" { "pdp11-*-*" } } */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 
 typedef union
 {

gcc/testsuite/gcc.c-torture/compile/pr70061.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef int v8si __attribute__ ((vector_size (32)));
 
 int

gcc/testsuite/gcc.c-torture/compile/pr70240.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 typedef short v16hi __attribute__ ((vector_size (32)));
 typedef int v8si __attribute__ ((vector_size (32)));
 typedef long long v4di __attribute__ ((vector_size (32)));

gcc/testsuite/gcc.c-torture/compile/pr70355.c

 /* { dg-require-effective-target int128 } */
 /* { dg-additional-options "-g" } */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
+
 
 typedef unsigned __int128 v2ti __attribute__ ((vector_size (32)));
 

gcc/testsuite/gcc.c-torture/compile/pr82052.c

+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
+
 typedef unsigned char uint8_t;
 typedef unsigned short uint16_t;
 typedef unsigned uint32_t;

gcc/testsuite/gcc.c-torture/compile/pr83487.c

 /* PR middle-end/83487 */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 struct __attribute__ ((aligned)) A {};
 struct A a;

gcc/testsuite/gcc.c-torture/compile/pr86122.c

 /* PR middle-end/86122 */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 
 _Complex int
 foo (_Complex int x)

gcc/testsuite/gcc.c-torture/compile/pret-arg.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 foo (a, b, c, d, e, f, g, h, i, j, xx)
      double xx;
 {

gcc/testsuite/gcc.c-torture/compile/regs-arg-size.c

+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
+
 int foo;
 typedef long unsigned int size_t;
 typedef short unsigned int wchar_t;

gcc/testsuite/gcc.c-torture/compile/structret.c

+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 struct foo
 {
   int a, b, c, d;

gcc/testsuite/gcc.c-torture/compile/uuarg.c

 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
+
 foo (a, b, c, d, e, f, g, h, i)
 {
   return foo () + i;

gcc/testsuite/gcc.dg/20001009-1.c

 /* { dg-do compile { target fpic } } */
 /* { dg-options "-O2 -fpic" } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 extern void foo (void *a, double x, double y);
 void

gcc/testsuite/gcc.dg/20020418-1.c

@@ -2,6 +2,7 @@
 /* { dg-do compile } */
 /* { dg-options "-O2" } */
 /* { dg-options "-O2 -msse -ffast-math" { target i?86-*-* x86_64-*-* } } */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 
 void bar (float *a, float *b);
 

gcc/testsuite/gcc.dg/20020426-2.c

@@ -3,6 +3,7 @@
 /* { dg-do run } */
 /* { dg-options "-O2" } */
 /* { dg-options "-O2 -frename-registers -fomit-frame-pointer -fPIC -mtune=i686" { target { { i?86-*-* x86_64-*-* } && { ia32 && fpic } } } } */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 
 extern void exit (int);
 

gcc/testsuite/gcc.dg/20020430-1.c

@@ -6,6 +6,7 @@
 
 /* { dg-do compile { target fpic } } */
 /* { dg-options "-O2 -frename-registers -fpic" } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 typedef unsigned long XID;
 typedef XID Window;

gcc/testsuite/gcc.dg/20040306-1.c

@@ -2,7 +2,7 @@
 
 /* { dg-do compile } */
 /* { dg-options "-O2" } */
-
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 typedef struct test
 {

gcc/testsuite/gcc.dg/20040622-2.c

 /* { dg-do link } */
 /* { dg-require-effective-target ptr32plus } */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 /* This validates codegen for [r1+32760] on Darwin. */
 void f(char x[32688], double *y, double *z) __attribute__((noinline));
 void f(char x[32688], double *y, double *z) {}

gcc/testsuite/gcc.dg/20050603-2.c

 /* { dg-do run } */
 /* { dg-options "-O2" } */
+/* { dg-skip-if "no stdlib.h in eBPF" { bpf-*-* } } */
 #include <stdlib.h>
 struct s {
   unsigned short f: 16;

gcc/testsuite/gcc.dg/20050629-1.c

 /* { dg-do compile } */
 /* { dg-options "-O2 -w" } */
+/* { dg-skip-if "too many arguments in function call" { bpf-*-* } } */
 
 /* This file was automatically reduced from tree-ssa-operands.c.  It
    contains many warnings, but it exposes a copy propagation bug that

gcc/testsuite/gcc.dg/20061026.c

 /* { dg-do compile } */
 /* { dg-options "-O1" } */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 
 /* This testcase failed on s390.  The frame size for function f will be
    exactly 32768 bytes.  The back end has to recognize that this is to

gcc/testsuite/gcc.dg/Warray-bounds-3.c

 /* { dg-do compile } */
 /* { dg-options "-O2 -Warray-bounds" } */
+/* { dg-skip-if "exceeds eBPF stack limit" { bpf-*-* } } */
 /* based on PR 31227 */
 
 typedef __SIZE_TYPE__ size_t;