git: d439598dd0d3 - main - dtrace tests: Add a test case which validates FBT probe arguments
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Date: Thu, 19 Sep 2024 09:53:38 UTC
The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=d439598dd0d341b0c0b77151ba904e09c42f8421 commit d439598dd0d341b0c0b77151ba904e09c42f8421 Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2024-09-19 09:22:03 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2024-09-19 09:22:03 +0000 dtrace tests: Add a test case which validates FBT probe arguments Reviewed by: avg MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D46674 --- .../test/tst/common/fbtprovider/tst.argtest.ksh | 34 ++++++++++++++++++++++ .../tst/common/fbtprovider/tst.argtest.ksh.out | 3 ++ .../dtrace/tests/common/fbtprovider/Makefile | 2 ++ sys/cddl/dev/dtrace/dtrace_test.c | 28 ++++++++++++++++-- 4 files changed, 64 insertions(+), 3 deletions(-) diff --git a/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/fbtprovider/tst.argtest.ksh b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/fbtprovider/tst.argtest.ksh new file mode 100644 index 000000000000..dc3641b01101 --- /dev/null +++ b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/fbtprovider/tst.argtest.ksh @@ -0,0 +1,34 @@ +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License (the "License"). +# You may not use this file except in compliance with the License. +# +# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +# or http://www.opensolaris.org/os/licensing. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# When distributing Covered Code, include this CDDL HEADER in each +# file and include the License file at usr/src/OPENSOLARIS.LICENSE. +# If applicable, add the following below this CDDL HEADER, with the +# fields enclosed by brackets "[]" replaced with your own identifying +# information: Portions Copyright [yyyy] [name of copyright owner] +# +# CDDL HEADER END +# + +# +# Copyright (c) 2024 Mark Johnston <markj@FreeBSD.org> +# + +dtrace=$1 + +$dtrace -q -s /dev/stdin -c "sysctl debug.dtracetest.fbttest=1" <<__EOF__ +fbt:dtrace_test:fbttest:entry +{ + printf("%d %d %d %d %d %d %d %d %d %d\n", args[0], args[1], args[2], + args[3], args[4], args[5], args[6], args[7], args[8], args[9]); +} +__EOF__ diff --git a/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/fbtprovider/tst.argtest.ksh.out b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/fbtprovider/tst.argtest.ksh.out new file mode 100644 index 000000000000..301e154b3339 --- /dev/null +++ b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/fbtprovider/tst.argtest.ksh.out @@ -0,0 +1,3 @@ +debug.dtracetest.fbttest: 0 -> 0 +1 2 3 4 5 6 7 8 9 10 + diff --git a/cddl/usr.sbin/dtrace/tests/common/fbtprovider/Makefile b/cddl/usr.sbin/dtrace/tests/common/fbtprovider/Makefile index 3ca540fd77f1..0dee8f807065 100644 --- a/cddl/usr.sbin/dtrace/tests/common/fbtprovider/Makefile +++ b/cddl/usr.sbin/dtrace/tests/common/fbtprovider/Makefile @@ -6,6 +6,8 @@ PACKAGE= tests ${PACKAGE}FILES= \ err.D_PDESC_ZERO.notreturn.d \ + tst.argtest.ksh \ + tst.argtest.ksh.out \ tst.basic.d \ tst.functionentry.d \ tst.functionreturnvalue.d \ diff --git a/sys/cddl/dev/dtrace/dtrace_test.c b/sys/cddl/dev/dtrace/dtrace_test.c index e36debc27a49..a61958d9184a 100644 --- a/sys/cddl/dev/dtrace/dtrace_test.c +++ b/sys/cddl/dev/dtrace/dtrace_test.c @@ -51,13 +51,27 @@ typedef struct vnode vnode_t; vnode_t dummy; vnode_t *rootvp = &dummy; +enum argtest { + ARGTEST_SDT, + ARGTEST_FBT, +}; + +extern void fbttest(int, int, int, int, int, int, int, int, int, int); + +void __noinline +fbttest(int a, int b, int c, int d, int e, int f, int g, int h, int i, int j) +{ + printf("fbttest(%d, %d, %d, %d, %d, %d, %d, %d, %d, %d)\n", + a, b, c, d, e, f, g, h, i, j); +} + /* * Test SDT probes with more than 5 arguments. On amd64, such probes require * special handling since only the first 5 arguments will be passed to * dtrace_probe() in registers; the rest must be fetched off the stack. */ static int -dtrace_test_sdttest(SYSCTL_HANDLER_ARGS) +dtrace_test_argtest(SYSCTL_HANDLER_ARGS) { int val, error; @@ -68,7 +82,10 @@ dtrace_test_sdttest(SYSCTL_HANDLER_ARGS) else if (val == 0) return (0); - SDT_PROBE6(test, , , sdttest, 1, 2, 3, 4, 5, 6); + if (arg2 == ARGTEST_SDT) + SDT_PROBE6(test, , , sdttest, 1, 2, 3, 4, 5, 6); + else + fbttest(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); return (error); } @@ -78,8 +95,13 @@ static SYSCTL_NODE(_debug, OID_AUTO, dtracetest, ""); SYSCTL_PROC(_debug_dtracetest, OID_AUTO, sdttest, - CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RW, NULL, 0, dtrace_test_sdttest, + CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RW, NULL, ARGTEST_SDT, + dtrace_test_argtest, "I", "Trigger the SDT test probe"); +SYSCTL_PROC(_debug_dtracetest, OID_AUTO, fbttest, + CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RW, NULL, ARGTEST_FBT, + dtrace_test_argtest, + "I", "Trigger the FBT test probe"); static int dtrace_test_modevent(module_t mod, int type, void *data)