From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Tue, 17 Apr 2012 14:50:12 +0000 (-0400)
Subject: Fix: generate header missing echo -e for escape chars
X-Git-Tag: v2.0.2~1
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=fa73137a9984cd453fe895cca204f9d73291c1b2;p=lttng-modules.git

Fix: generate header missing echo -e for escape chars

"why is the -e needed ? What was the experienced oddness ?"

   The \n wasn't getting evaluated to a newline and was being inserted
into the header file as '\n'

   From man echo(1):

       If -e is in effect, the following sequences are recognized:

       \\     backslash

       \a     alert (BEL)

       \b     backspace

       \c     produce no further output

       \e     escape

       \f     form feed

       \n     new line

       \r     carriage return

       \t     horizontal tab

       \v     vertical tab

Suggested-by: Ryan Kyser <Ryan.Kyser@jci.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/instrumentation/syscalls/lttng-syscalls-generate-headers.sh b/instrumentation/syscalls/lttng-syscalls-generate-headers.sh
index 5eddb274..046dc067 100644
--- a/instrumentation/syscalls/lttng-syscalls-generate-headers.sh
+++ b/instrumentation/syscalls/lttng-syscalls-generate-headers.sh
@@ -59,7 +59,7 @@ if [ "$CLASS" = integers ]; then
 
 NRARGS=0
 
-echo \
+echo -e \
 'SC_DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\
 '	TP_STRUCT__entry(),\n'\
 '	TP_fast_assign(),\n'\