[dpdk-dev] [PATCH] Fix bash path in shebangs

alan somers asomers at gmail.com
Mon Jul 31 18:18:26 CEST 2017


On Mon, Jul 31, 2017 at 9:22 AM, Bruce Richardson
<bruce.richardson at intel.com> wrote:
> On Mon, Jul 31, 2017 at 09:11:11AM -0600, alan somers wrote:
>> On Fri, Jul 28, 2017 at 3:28 AM, Bruce Richardson
>> <bruce.richardson at intel.com> wrote:
>> > On Thu, Jul 27, 2017 at 02:41:46PM -0600, asomers at gmail.com wrote:
>> >> From: Alan Somers <asomers at gmail.com>
>> >>
>> >> "/bin/bash" is a Linuxism.  "/usr/bin/env bash" is portable.
>> >>
>> >> Signed-off-by: Alan Somers <asomers at gmail.com>
>> >> ---
>> >>  examples/performance-thread/l3fwd-thread/test.sh | 2 +-
>> >>  usertools/dpdk-setup.sh                          | 2 +-
>> >>  2 files changed, 2 insertions(+), 2 deletions(-)
>> >>
>> >> diff --git a/examples/performance-thread/l3fwd-thread/test.sh b/examples/performance-thread/l3fwd-thread/test.sh
>> >> index b7718b622..eb1fe2dc2 100755
>> >> --- a/examples/performance-thread/l3fwd-thread/test.sh
>> >> +++ b/examples/performance-thread/l3fwd-thread/test.sh
>> >> @@ -1,4 +1,4 @@
>> >> -#!/bin/bash
>> >> +#!/usr/bin/env bash
>> >>
>> >>  case "$1" in
>> >>
>> > This script doesn't look to be using any bash specific features to me,
>> > so a better fix might be to change it to use /bin/sh rather than
>> > requiring bash itself. [Needs testing, to check there isn't something
>> > bash-specific hidden away, obviously]
>>
>> True.  Unfortunately, I can't test it right now because I can't get
>> DPDK to build on either Linux or FreeBSD, and I'm out of time to debug
>> the build failures for now.  Would you like me to resubmit the patch,
>> altered to use /bin/sh, without testing?
>>
>> >
> I'm not sure it's that important a change that we need to rush into
> doing so.
>
> What difficulties are you having getting DPDK to build? Is it just
> platform setup issues?

On Linux, I fail for lack of numa.h.  The docs say to install
libnuma-devel, but that package doesn't exist on my distro (Ubuntu
16.04).  On FreeBSD, I get this compile error
/usr/home/alans/freebsd/head/sys/vm/vm_phys.h:120:2: error: use of undeclared
      identifier 'vm_cnt'
        vm_cnt.v_free_count += adj;

On FreeBSD stable/11, I get a litany of errors, beginning with:
n file included from contigmem.c:49:
In file included from ./machine/bus.h:6:
In file included from ./x86/bus.h:1038:
In file included from ./machine/bus_dma.h:32:
./x86/bus_dma.h:43:1: error: static declaration of 'bus_dmamap_create' follows
      non-static declaration
bus_dmamap_create(bus_dma_tag_t dmat, int flags, bus_dmamap_t *mapp)
^
/usr/home/alans/freebsd/stable_11/sys/sys/bus_dma.h:262:5: note: previous
      declaration is here
int bus_dmamap_create(bus_dma_tag_t dmat, int flags, bus_dmamap_t *mapp);

And on FreeBSD stable/10, I get a make error:
make[6]: "/usr/home/alans/freebsd/stable_10/sys/conf/kern.mk" line 43:
Malformed conditional (${MK_FORMAT_EXTENSIONS} == "no")

-Alan


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