[v11,02/13] trace-cmd: Detect if vsockets are available

Message ID	20190618143958.2865-3-slavomir.kaslev@gmail.com (mailing list archive)
State	Superseded
Headers	show Return-Path: <linux-trace-devel-owner@kernel.org> From: "Slavomir Kaslev (VMware)" <slavomir.kaslev@gmail.com> To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v11 02/13] trace-cmd: Detect if vsockets are available Date: Tue, 18 Jun 2019 17:39:47 +0300 Message-Id: <20190618143958.2865-3-slavomir.kaslev@gmail.com> In-Reply-To: <20190618143958.2865-1-slavomir.kaslev@gmail.com> References: <20190618143958.2865-1-slavomir.kaslev@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-trace-devel-owner@vger.kernel.org Precedence: bulk
Series	Add VM kernel tracing over vsockets and FIFOs \| expand [v11,00/13] Add VM kernel tracing over vsockets and FIFOs [v11,01/13] trace-cmd: Make ports unsigned int [v11,02/13] trace-cmd: Detect if vsockets are available [v11,03/13] trace-cmd: Add tracecmd_create_recorder_virt() function [v11,04/13] trace-cmd: Add VM tracing protocol messages [v11,05/13] trace-cmd: Add buffer instance flags for tracing in guest and agent context [v11,06/13] trace-cmd: Add VM kernel tracing over vsockets transport [v11,07/13] trace-cmd: Use splice(2) for vsockets if available [v11,08/13] trace-cmd: Switch stop recording signal to SIGUSR1 [v11,09/13] trace-cmd: Add `trace-cmd setup-guest` command [v11,10/13] trace-cmd: Try to autodetect number of guest CPUs in setup-guest if not specified [v11,11/13] trace-cmd: Add setup-guest flag for attaching FIFOs to the guest VM config [v11,12/13] trace-cmd: Add splice() recording from FIFO without additional pipe buffer [v11,13/13] trace-cmd: Add support for tracing VMware Workstation VMs by name

Message ID

20190618143958.2865-3-slavomir.kaslev@gmail.com (mailing list archive)

State

Superseded

Headers

From: "Slavomir Kaslev (VMware)" <slavomir.kaslev@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v11 02/13] trace-cmd: Detect if vsockets are available
Date: Tue, 18 Jun 2019 17:39:47 +0300
Message-Id: <20190618143958.2865-3-slavomir.kaslev@gmail.com>
In-Reply-To: <20190618143958.2865-1-slavomir.kaslev@gmail.com>
References: <20190618143958.2865-1-slavomir.kaslev@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-trace-devel-owner@vger.kernel.org
Precedence: bulk

Series

Add VM kernel tracing over vsockets and FIFOs | expand

Commit Message

Slavomir Kaslev June 18, 2019, 2:39 p.m. UTC

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>
Signed-off-by: Slavomir Kaslev (VMware) <slavomir.kaslev@gmail.com>
---
 Makefile | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Makefile b/Makefile
index d34c615..ba726ee 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

[v11,02/13] trace-cmd: Detect if vsockets are available

Commit Message

Patch