Patchwork REPOST: [PATCH v3] tracetool: Add optional argument to specify dtrace probe names

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Submitter Jes Sorensen
Date March 2, 2011, 8:22 a.m.
Message ID <1299054175-9692-1-git-send-email-Jes.Sorensen@redhat.com>
Download mbox | patch
Permalink /patch/85055/
State New
Headers show

Comments

Jes Sorensen - March 2, 2011, 8:22 a.m.
From: Jes Sorensen <Jes.Sorensen@redhat.com>

Optional feature allowing a user to generate the probe list to match
the name of the binary, in case they wish to install qemu under a
Stefan Hajnoczi - March 2, 2011, 10:40 a.m.
On Wed, Mar 2, 2011 at 8:22 AM,  <Jes.Sorensen@redhat.com> wrote:
> From: Jes Sorensen <Jes.Sorensen@redhat.com>
>
> Optional feature allowing a user to generate the probe list to match
> the name of the binary, in case they wish to install qemu under a
> different name than qemu-{system,user},<arch>
>
> Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
> ---
>  scripts/tracetool |   19 +++++++++++++------
>  1 files changed, 13 insertions(+), 6 deletions(-)

Yes, please merge.

Acked-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>

Patch

different name than qemu-{system,user},<arch>

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
---
 scripts/tracetool |   19 +++++++++++++------
 1 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/scripts/tracetool b/scripts/tracetool
index e046683..412f695 100755
--- a/scripts/tracetool
+++ b/scripts/tracetool
@@ -30,9 +30,11 @@  Output formats:
   --stap Generate .stp file (DTrace with SystemTAP only)
 
 Options:
-  --binary      [path]  Full path to QEMU binary
-  --target-arch [arch]  QEMU emulator target arch
-  --target-type [type]  QEMU emulator target type ('system' or 'user')
+  --binary       [path]    Full path to QEMU binary
+  --target-arch  [arch]    QEMU emulator target arch
+  --target-type  [type]    QEMU emulator target type ('system' or 'user')
+  --probe-prefix [prefix]  Prefix for dtrace probe names
+                           (default: qemu-\$targettype-\$targetarch)
 
 EOF
     exit 1
@@ -472,7 +474,7 @@  linetostap_dtrace()
 
     # Define prototype for probe arguments
     cat <<EOF
-probe qemu.$targettype.$targetarch.$name = process("$binary").mark("$name")
+probe $probeprefix.$name = process("$binary").mark("$name")
 {
 EOF
 
@@ -574,14 +576,17 @@  tracetostap()
        echo "--binary is required for SystemTAP tapset generator"
        exit 1
     fi
-    if [ -z "$targettype" ]; then
+    if [ -z "$probeprefix" -a -z "$targettype" ]; then
        echo "--target-type is required for SystemTAP tapset generator"
        exit 1
     fi
-    if [ -z "$targetarch" ]; then
+    if [ -z "$probeprefix" -a -z "$targetarch" ]; then
        echo "--target-arch is required for SystemTAP tapset generator"
        exit 1
     fi
+    if [ -z "$probeprefix" ]; then
+	probeprefix="qemu.$targettype.$targetarch";
+    fi
     echo "/* This file is autogenerated by tracetool, do not edit. */"
     convert stap
 }
@@ -592,6 +597,7 @@  output=
 binary=
 targettype=
 targetarch=
+probeprefix=
 
 
 until [ -z "$1" ]
@@ -602,6 +608,7 @@  do
     "--binary") shift ; binary="$1" ;;
     "--target-arch") shift ; targetarch="$1" ;;
     "--target-type") shift ; targettype="$1" ;;
+    "--probe-prefix") shift ; probeprefix="$1" ;;
 
     "-h" | "-c" | "-d") output="${1#-}" ;;
     "--stap") output="${1#--}" ;;