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

Wiles, Keith keith.wiles at intel.com
Mon Jul 31 19:06:06 CEST 2017


> On Jul 31, 2017, at 11:18 AM, alan somers <asomers at gmail.com> wrote:
> 
> 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 my Ubuntu 17.04 the package is called libnuma-dev 

> 
> 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

Regards,
Keith



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