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[PATCH] alpha: support R_ALPHA_REFLONG relocations for module loading

Started byMichael Cree <mcree@orcon.net.nz>
First post2017-06-24 04:20 +0200
Last post2017-06-24 17:10 +0200
Articles 2 — 2 participants

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  [PATCH] alpha: support R_ALPHA_REFLONG relocations for module loading Michael Cree <mcree@orcon.net.nz> - 2017-06-24 04:20 +0200
    Re: [PATCH] alpha: support R_ALPHA_REFLONG relocations for module  loading Richard Henderson <rth@twiddle.net> - 2017-06-24 17:10 +0200

#1673974 — [PATCH] alpha: support R_ALPHA_REFLONG relocations for module loading

FromMichael Cree <mcree@orcon.net.nz>
Date2017-06-24 04:20 +0200
Subject[PATCH] alpha: support R_ALPHA_REFLONG relocations for module loading
Message-ID<tVIQ1-1SY-1@gated-at.bofh.it>
Since commit 71810db27c1c853b33 (modversions: treat symbol CRCs
as 32 bit quantities) R_ALPHA_REFLONG relocations can be required
to load modules. This implements it.

Tested-by: Bob Tracy <rct@gherkin.frus.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
---
 arch/alpha/kernel/module.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
index 936bc8f89a67..47632fa8c24e 100644
--- a/arch/alpha/kernel/module.c
+++ b/arch/alpha/kernel/module.c
@@ -181,6 +181,9 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
 		switch (r_type) {
 		case R_ALPHA_NONE:
 			break;
+		case R_ALPHA_REFLONG:
+			*(u32 *)location = value;
+			break;
 		case R_ALPHA_REFQUAD:
 			/* BUG() can produce misaligned relocations. */
 			((u32 *)location)[0] = value;
-- 
2.11.0

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#1674092 — Re: [PATCH] alpha: support R_ALPHA_REFLONG relocations for module loading

FromRichard Henderson <rth@twiddle.net>
Date2017-06-24 17:10 +0200
SubjectRe: [PATCH] alpha: support R_ALPHA_REFLONG relocations for module loading
Message-ID<tVURc-XB-7@gated-at.bofh.it>
In reply to#1673974
On 06/23/2017 06:37 PM, Michael Cree wrote:
> Since commit 71810db27c1c853b33 (modversions: treat symbol CRCs
> as 32 bit quantities) R_ALPHA_REFLONG relocations can be required
> to load modules. This implements it.
> 
> Tested-by: Bob Tracy<rct@gherkin.frus.com>
> Signed-off-by: Michael Cree<mcree@orcon.net.nz>
> ---
>   arch/alpha/kernel/module.c | 3 +++
>   1 file changed, 3 insertions(+)

Reviewed-by: Richard Henderson <rth@twiddle.net>


r~

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