linux-trace-devel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH] kernel-shark-2.alpha: Force trace-cmd.h to be used as plain C
Date: Thu,  9 Apr 2020 17:25:07 +0300	[thread overview]
Message-ID: <20200409142511.82228-1-tz.stoyanov@gmail.com> (raw)

From: Tzvetomir (VMware)  Stoyanov <tz.stoyanov@gmail.com>

C++ compiler uses name mangling to handle function overloading. As there is no function overloading in C, function names are not mangled. This breaks the linking of C library into C++ binary.
Declare functions from trace-cmd.h as pure C, so the loader will not mangle the names when resolving them.

Signed-off-by: Tzvetomir (VMware)  Stoyanov <tz.stoyanov@gmail.com>
---
 src/plugins/KVMCombo.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/plugins/KVMCombo.cpp b/src/plugins/KVMCombo.cpp
index 3ff9ca5..1ae03aa 100644
--- a/src/plugins/KVMCombo.cpp
+++ b/src/plugins/KVMCombo.cpp
@@ -13,7 +13,9 @@
 #include<iostream>
 
 // trace-cmd
+extern "C" {
 #include "trace-cmd/trace-cmd.h"
+}
 
 // KernelShark
 #include "libkshark.h"
-- 
2.25.1


             reply	other threads:[~2020-04-09 14:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-09 14:25 Tzvetomir Stoyanov (VMware) [this message]
2020-04-09 14:25 ` [PATCH] kernel-shark-2.alpha: Print the plugin's file name in case of loading error Tzvetomir Stoyanov (VMware)
2020-04-09 14:25 ` [PATCH] kernel-shark-2.alpha: Restructure KVMCombo plugin to use CPU mapping information from the trace files Tzvetomir Stoyanov (VMware)
2020-04-09 14:25 ` [PATCH] KernelShark: Adjust the width of marker buttons Tzvetomir Stoyanov (VMware)
2020-04-09 14:25 ` [PATCH v2] kernel-shark-2.alpha: Use new tracecmd APIs to open guest tracing file Tzvetomir Stoyanov (VMware)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200409142511.82228-1-tz.stoyanov@gmail.com \
    --to=tz.stoyanov@gmail.com \
    --cc=linux-trace-devel@vger.kernel.org \
    --cc=rostedt@goodmis.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).