From: Dave.Martin@arm.com (Dave Martin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/8] ARM: assembler: introduce adr_l, ldr_l and str_l macros
Date: Thu, 4 Aug 2016 10:38:51 +0100 [thread overview]
Message-ID: <20160804093851.GD7147@e103592.cambridge.arm.com> (raw)
In-Reply-To: <CAKv+Gu9Wyiu38J=K00WKXSeFoDF2vS-3TJAvbz9Yo616GBXSwQ@mail.gmail.com>
On Thu, Aug 04, 2016 at 09:40:50AM +0200, Ard Biesheuvel wrote:
> On 3 August 2016 at 20:09, Russell King - ARM Linux
> <linux@armlinux.org.uk> wrote:
> > On Wed, Aug 03, 2016 at 05:38:43PM +0200, Ard Biesheuvel wrote:
> >> + add \dst, pc, #:pc_g0_nc:(\sym) - 8
> >> + add \dst, \dst, #:pc_g1_nc:(\sym) - 4
> >> + add \dst, \dst, #:pc_g2:(\sym)
> >
> > What's this :pc_g0_nc: stuff? What binutils versions is it supported
> > in? It doesn't appear documented in gas 2.23.91, so I don't think we
> > can use it.
> >
>
> binutils 2.18 and up
I think this was contemporary with GCC 4.<some middling version>, which
may be newer than the minimimum compiler we require for the kernel,
particular for earlier arch versions.
Using .reloc probably allows the same thing to be done in a more
backwards-compatible way.
Cheers
---Dave
next prev parent reply other threads:[~2016-08-04 9:38 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-03 15:38 [PATCH 0/8] ARM: clean up PC-relative arithmetic Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 1/8] ARM: assembler: introduce adr_l, ldr_l and str_l macros Ard Biesheuvel
2016-08-03 16:49 ` Dave Martin
2016-08-04 7:40 ` Ard Biesheuvel
2016-08-04 9:44 ` Dave Martin
2016-08-04 10:34 ` Ard Biesheuvel
2016-08-04 11:22 ` Dave Martin
2016-08-04 12:16 ` Russell King - ARM Linux
2016-08-04 12:55 ` Dave Martin
2016-08-04 13:58 ` Ard Biesheuvel
2016-08-04 7:43 ` Ard Biesheuvel
2016-08-03 18:09 ` Russell King - ARM Linux
2016-08-04 7:40 ` Ard Biesheuvel
2016-08-04 9:38 ` Dave Martin [this message]
2016-08-04 10:12 ` Ard Biesheuvel
2016-08-04 11:08 ` Dave Martin
2016-08-04 11:10 ` Ard Biesheuvel
2016-08-04 11:30 ` Dave Martin
2016-08-04 11:34 ` Ard Biesheuvel
2016-08-04 13:31 ` Dave Martin
2016-08-04 13:46 ` Ard Biesheuvel
2016-08-04 15:38 ` Dave Martin
2016-08-03 15:38 ` [PATCH 2/8] ARM: head-common.S: use PC-relative insn sequence for __proc_info Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 3/8] ARM: head-common.S: use PC-relative insn sequence for __turn_mmu_on Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 4/8] ARM: head.S: use PC-relative insn sequence for secondary_data Ard Biesheuvel
2016-08-03 18:06 ` Russell King - ARM Linux
2016-08-03 15:38 ` [PATCH 5/8] ARM: head: use PC-relative insn sequence for __smp_alt Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 6/8] ARM: sleep.S: use PC-relative insn sequence for sleep_save_sp/mpidr_hash Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 7/8] ARM: head.S: use PC-relative insn sequences for __fixup_pv_table Ard Biesheuvel
2016-08-03 15:38 ` [PATCH 8/8] ARM: head.S: use PC relative insn sequence to calculate PHYS_OFFSET Ard Biesheuvel
2016-08-03 18:17 ` [PATCH 0/8] ARM: clean up PC-relative arithmetic Russell King - ARM Linux
2016-08-04 7:17 ` Ard Biesheuvel
2016-08-04 9:49 ` Russell King - ARM Linux
2016-08-04 9:54 ` Ard Biesheuvel
2016-08-04 10:03 ` Russell King - ARM Linux
2016-08-04 10:11 ` Ard Biesheuvel
2016-08-04 10:14 ` Russell King - ARM Linux
2016-08-03 18:27 ` Nicolas Pitre
2016-08-04 14:11 ` Ard Biesheuvel
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