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From 30c30cdc0b2d0af7aa05048345f272de77aba6cb Mon Sep 17 00:00:00 2001
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From: "Richard W.M. Jones" <rjones@redhat.com>
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Date: Mon, 24 Mar 2014 05:50:28 -0500
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Subject: [PATCH 10/18] arm64: Align code and data to 8 bytes.
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Insufficient alignment seems to be the cause of relocation errors when
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linking large native code OCaml programs:
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(.text+0xc): relocation truncated to fit: R_AARCH64_LDST64_ABS_LO12_NC against symbol `camlOdoc_type' defined in .data section in odoc_type.o
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../stdlib/stdlib.a(listLabels.o): In function `camlListLabels__entry':
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(.text+0x10): relocation truncated to fit: R_AARCH64_LDST64_ABS_LO12_NC against symbol `camlListLabels' defined in .data section in ../stdlib/stdlib.a(listLabels.o)
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PR#6283 http://caml.inria.fr/mantis/view.php?id=6283
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---
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asmcomp/arm64/emit.mlp | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/asmcomp/arm64/emit.mlp b/asmcomp/arm64/emit.mlp
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index fc9649c..4e7c4b0 100644
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--- a/asmcomp/arm64/emit.mlp
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+++ b/asmcomp/arm64/emit.mlp
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@@ -651,7 +651,7 @@ let fundecl fundecl =
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call_gc_sites := [];
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bound_error_sites := [];
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` .text\n`;
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- ` .align 2\n`;
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+ ` .align 3\n`;
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` .globl {emit_symbol fundecl.fun_name}\n`;
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` .type {emit_symbol fundecl.fun_name}, %function\n`;
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`{emit_symbol fundecl.fun_name}:\n`;
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@@ -692,6 +692,7 @@ let emit_item = function
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let data l =
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` .data\n`;
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+ ` .align 3\n`;
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List.iter emit_item l
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(* Beginning / end of an assembly file *)
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--
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2.3.1
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