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 12:30:19 +0100 [thread overview]
Message-ID: <20160804113018.GH7147@e103592.cambridge.arm.com> (raw)
In-Reply-To: <CAKv+Gu_JVX3erz6N64EGfu38TDi6PHsQVGY=nkfu7kF-8Hq=6Q@mail.gmail.com>
On Thu, Aug 04, 2016 at 01:10:55PM +0200, Ard Biesheuvel wrote:
> On 4 August 2016 at 13:08, Dave Martin <Dave.Martin@arm.com> wrote:
[...]
> > or, for ldr_l:
> >
> > 0: add \dst, pc, #-8
> > 1: add \dst, \dst, #-4
> > 2: ldr [\dst, #0]
> >
> > .reloc 0b, R_ARM_ALU_PC_G0_NC, \sym
> > .reloc 1b, R_ARM_ALU_PC_G1_NC, \sym
> > .reloc 2b, R_ARM_LDR_PC_G2, \sym
> >
> > ... should produce precisely the same result at the .o stage.
> >
>
> Yes, but how is LD going to perform the arithmetic involved in
What arithmetic?
> handling these relocations? That's is the more interesting part, and
> that is not implemented either in binutils < 2.18
You mean .reloc is not implemented < 2.18?
[...]
Cheers
---Dave
next prev parent reply other threads:[~2016-08-04 11:30 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
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 [this message]
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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