DPDK patches and discussions
 help / color / Atom feed
From: David Marchand <david.marchand@redhat.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, arybchenko@solarflare.com, stable@dpdk.org,
	Neil Horman <nhorman@tuxdriver.com>
Subject: [dpdk-dev] [PATCH 2/2] buildtools: fix build with coverage enabled
Date: Mon, 25 Nov 2019 09:10:07 +0100
Message-ID: <20191125081007.12396-2-david.marchand@redhat.com> (raw)
In-Reply-To: <20191125081007.12396-1-david.marchand@redhat.com>

A compiler can reuse a variable name and prefix it when instrumenting
with coverage.

Example:
$ make defconfig T=x86_64-native-linux-gcc O=master
$ make EXTRA_CFLAGS='--coverage' O=master
[...]
    CC rte_flow.o
 rte_flow_dynf_metadata_offs is not flagged as experimental but is listed
 in version map
 Please add __rte_experimental to the definition of
 rte_flow_dynf_metadata_offs

$ objdump -t master/build/lib/librte_ethdev/rte_flow.o |grep _offs$
0000000000000000 l     F .text.startup	000000000000000a
  _GLOBAL__sub_I_65535_0_rte_flow_dynf_metadata_offs
0000000000000620 g     O .data	0000000000000004
  rte_flow_dynf_metadata_offs

Protect against this by adding a space character in the pattern.

Fixes: a4bcd61de82d ("buildtools: add script to check experimental API exports")
Cc: stable@dpdk.org

Reported-by: Andrew Rybchenko <arybchenko@solarflare.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
---
 buildtools/check-experimental-syms.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/buildtools/check-experimental-syms.sh b/buildtools/check-experimental-syms.sh
index abebb89f12..f3603e5bac 100755
--- a/buildtools/check-experimental-syms.sh
+++ b/buildtools/check-experimental-syms.sh
@@ -25,8 +25,8 @@ objdump -t $OBJFILE >$DUMPFILE
 ret=0
 for SYM in `$LIST_SYMBOL -S EXPERIMENTAL $MAPFILE |cut -d ' ' -f 3`
 do
-	if grep -q "\.text.*$SYM$" $DUMPFILE &&
-		! grep -q "\.text\.experimental.*$SYM$" $DUMPFILE
+	if grep -q "\.text.*[[:space:]]$SYM$" $DUMPFILE &&
+		! grep -q "\.text\.experimental.*[[:space:]]$SYM$" $DUMPFILE
 	then
 		cat >&2 <<- END_OF_MESSAGE
 		$SYM is not flagged as experimental
-- 
2.23.0


  reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-25  8:10 [dpdk-dev] [PATCH 1/2] buildtools: fix experimental symbols listing David Marchand
2019-11-25  8:10 ` David Marchand [this message]
2019-11-25  8:28   ` [dpdk-dev] [PATCH 2/2] buildtools: fix build with coverage enabled Andrew Rybchenko
2019-11-25 10:57     ` David Marchand
2019-11-25  8:21 ` [dpdk-dev] [PATCH 1/2] buildtools: fix experimental symbols listing Andrew Rybchenko
2019-11-25 13:26 ` Neil Horman
2019-11-26  8:10   ` David Marchand

Reply instructions:

You may reply publically 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=20191125081007.12396-2-david.marchand@redhat.com \
    --to=david.marchand@redhat.com \
    --cc=arybchenko@solarflare.com \
    --cc=dev@dpdk.org \
    --cc=nhorman@tuxdriver.com \
    --cc=stable@dpdk.org \
    --cc=thomas@monjalon.net \
    /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

DPDK patches and discussions

Archives are clonable:
	git clone --mirror http://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ http://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev


Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/ public-inbox