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From: Slavomir Kaslev <kaslevs@vmware.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v10 02/12] trace-cmd: Detect if vsockets are available
Date: Mon, 22 Apr 2019 17:55:09 +0300	[thread overview]
Message-ID: <20190422145519.16146-3-kaslevs@vmware.com> (raw)
In-Reply-To: <20190422145519.16146-1-kaslevs@vmware.com>

From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

Detect and define VSOCK if vsockets are available on the system.
This macro is used to disable VM remote tracing features on older kernels.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Slavomir Kaslev <kaslevs@vmware.com>
---
 Makefile | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Makefile b/Makefile
index cde45f8..2026183 100644
--- a/Makefile
+++ b/Makefile
@@ -204,6 +204,13 @@ CFLAGS ?= -g -Wall
 CPPFLAGS ?=
 LDFLAGS ?=
 
+VSOCK_DEFINED := $(shell if (echo "\#include <linux/vm_sockets.h>" | $(CC) -E - >/dev/null 2>&1) ; then echo 1; else echo 0 ; fi)
+
+export VSOCK_DEFINED
+ifeq ($(VSOCK_DEFINED), 1)
+CFLAGS += -DVSOCK
+endif
+
 export CFLAGS
 export INCLUDES
 
-- 
2.19.1


  parent reply	other threads:[~2019-04-22 14:55 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-22 14:55 [PATCH v10 00/12] Add VM kernel tracing over vsockets and FIFOs Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 01/12] trace-cmd: Make ports unsigned int Slavomir Kaslev
2019-04-22 14:55 ` Slavomir Kaslev [this message]
2019-04-22 14:55 ` [PATCH v10 03/12] trace-cmd: Add tracecmd_create_recorder_virt() function Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 04/12] trace-cmd: Add TRACE_REQ and TRACE_RESP messages Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 05/12] trace-cmd: Add buffer instance flags for tracing in guest and agent context Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 06/12] trace-cmd: Add VM kernel tracing over vsockets transport Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 07/12] trace-cmd: Use splice(2) for vsockets if available Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 08/12] trace-cmd: Add `trace-cmd setup-guest` command Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 09/12] trace-cmd: Try to autodetect number of guest CPUs in setup-guest if not specified Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 10/12] trace-cmd: Add setup-guest flag for attaching FIFOs to the guest VM config Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 11/12] trace-cmd: Add splice() recording from FIFO without additional pipe buffer Slavomir Kaslev
2019-04-22 14:55 ` [PATCH v10 12/12] trace-cmd: Add support for tracing VMware Workstation VMs by name Slavomir Kaslev

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