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Jose E. Marchesi 91dfef9610 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
2019-09-09 12:13:23 +02:00
..
header-tools Remove Cell Broadband Engine SPU targets 2019-09-03 15:08:28 +00:00
reghunt Remove svn:executable property from a couple of text files 2019-01-12 01:20:04 +01:00
regression
testsuite-management
vim-gcc-dev contrib/vimrc: override formatting options for more files 2019-09-02 15:30:02 +03:00
analyze_brprob_spec.py
analyze_brprob.py
bench-stringop Add new micro-benchmark for string operations. 2019-06-19 07:24:02 +00:00
ChangeLog GCC port for eBPF 2019-09-09 12:13:23 +02:00
ChangeLog.jit
ChangeLog.tree-ssa
check_GNU_style_lib.py Detect mixed usage of spaces and tabs. 2018-11-19 08:08:28 +00:00
check_GNU_style.py
check_GNU_style.sh
check_makefile_deps.sh
check_warning_flags.sh
check-internal-format-escaping.py * check-internal-format-escaping.py: New version using polib. 2019-04-30 10:14:40 -06:00
check-params-in-docs.py Ignore a param in check-params-in-docs.py 2019-03-06 10:00:37 +00:00
clang-format
compare_tests [contrib] compare_tests: Print number of tests 2018-07-12 20:18:41 +02:00
compare_two_ftime_report_sets
compare-all-tests Remove Cell Broadband Engine SPU targets 2019-09-03 15:08:28 +00:00
compare-debug
compare-lto re PR bootstrap/85571 (non-bootstrap-debug miscompare with trunk) 2018-05-08 08:50:33 +00:00
compareSumTests3
config-list.mk GCC port for eBPF 2019-09-09 12:13:23 +02:00
dg-cmp-results.sh dg-cmp-results: display NA->FAIL & NA->UNRESOLVED by default 2018-10-25 10:35:21 +00:00
dg-extract-results.py dg-extract-results.sh: Only handle WARNING: program timed out lines specially in "$MODE" == "sum". 2019-04-17 19:57:02 +02:00
dg-extract-results.sh dg-extract-results.sh: Only handle WARNING: program timed out lines specially in "$MODE" == "sum". 2019-04-17 19:57:02 +02:00
dglib.pm
download_prerequisites re PR other/82704 (GCC fails to download prerequisites on busybox distro (unrecognized sha512sum --check)) 2019-03-10 13:49:13 +01:00
filter_gcc_for_doxygen
filter_knr2ansi.pl
filter_params.py
filter-clang-warnings.py Transform filter-rtags-warnings to filter-clang-warnings. 2019-06-25 12:30:19 +00:00
gcc_build
gcc_update Handle libphobos in contrib/gcc_update 2018-11-14 17:09:09 +00:00
gcc.doxy
gen_autofdo_event.py
gennews * gennews (files): Add files for GCC 9. 2019-05-03 09:40:10 +02:00
gthr_supp_vxw_5x.c
index-prop
jit-coverage-report.py
maintainers-verify.sh [contrib] Add contrib/maintainers-verify.sh 2018-07-13 09:33:40 +00:00
make_sunver.pl
make-obstacks-texi.pl
mark_spam.py
mklog mklog: Do not print changed functions in testsuite 2019-09-04 08:08:20 +00:00
mklog.pl
paranoia.cc
patch_tester.sh
prepare_patch.sh
prerequisites.md5
prerequisites.sha512
repro_fail
test_installed
test_recheck
test_summary test_summary: Do not escape "=". 2019-08-13 17:17:49 +02:00
texi2pod.pl
uninclude
unused_functions.py contrib: unused_functions.py: Handle archives 2018-10-05 00:28:18 +02:00
update-copyright.py * update-copyright.py: Add Gerard Jungman as external author. 2019-01-01 13:20:46 +01:00
vimrc contrib/vimrc: override formatting options for more files 2019-09-02 15:30:02 +03:00
warn_summary Respect TMPDIR in contrib scripts. 2018-02-19 08:03:17 +00:00