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From: Bruce Richardson <bruce.richardson@intel.com>
To: "Mattias Rönnblom" <hofors@lysator.liu.se>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"Mattias Rönnblom" <mattias.ronnblom@ericsson.com>
Subject: Re: PIE static library builds
Date: Tue, 14 Mar 2023 16:29:43 +0000	[thread overview]
Message-ID: <ZBCg9ydmVGyM+3Nv@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <e164b124-f565-21f4-ba42-ade4fd54282c@lysator.liu.se>

On Tue, Mar 14, 2023 at 05:22:02PM +0100, Mattias Rönnblom wrote:
> Hi.
> 
> Is the "b_staticpic" meson build option supposed to work with DPDK?
> 
> Setting it to "false" (default is "true") causes link failures on Ubuntu
> 22.04, with GCC 9 and 11, on v23.03rc1 and v22.11:
> 
> /usr/bin/ld: lib/librte_eal.a.p/eal_common_eal_common_errno.c.o: relocation
> R_X86_64_TPOFF32 against `per_lcore_retval.1' can not be used when making a
> shared object; recompile with -fPIC
> /usr/bin/ld: failed to set dynamic section sizes: bad value
> collect2: error: ld returned 1 exit status
> 
> Does something per-lcore/TLS-related require PIC builds, even for static
> libraries?
> 
I don't think that is the issue. The "issue" is that DPDK always does both
static and shared builds from the same object files, so without -fPIC the
shared library parts of the build fails. To support not using staticpic,
we'd have to disable building the .so's in those cases, or each C file
built twice.

/Bruce

  reply	other threads:[~2023-03-14 16:30 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-14 16:22 Mattias Rönnblom
2023-03-14 16:29 ` Bruce Richardson [this message]
2023-03-14 18:04   ` Mattias Rönnblom
2023-03-14 18:31     ` Bruce Richardson
2023-03-15 14:18       ` Bruce Richardson
2023-03-15 15:45         ` Mattias Rönnblom
2023-03-15 15:55           ` Bruce Richardson

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