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124 lines
3.6 KiB
Diff
124 lines
3.6 KiB
Diff
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From 8dabc6eab444607a68d710f0b09942277095e219 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Wed, 12 Jan 2022 17:27:03 +0000
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Subject: [PATCH] arm: Fix annoying .eh_frame section warnings
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Replace the cfi directives with the UNWIND equivalents. This prevents
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the .eh_frame section from being created, eliminating the warnings.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/lib/memcpy_rpi.S | 2 ++
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arch/arm/lib/memcpymove.h | 45 ++++++++++++--------------------------
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arch/arm/lib/memmove_rpi.S | 2 ++
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3 files changed, 18 insertions(+), 31 deletions(-)
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--- a/arch/arm/lib/memcpy_rpi.S
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+++ b/arch/arm/lib/memcpy_rpi.S
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@@ -27,6 +27,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBI
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*/
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#include <linux/linkage.h>
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+#include <asm/assembler.h>
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+#include <asm/unwind.h>
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#include "arm-mem.h"
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#include "memcpymove.h"
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--- a/arch/arm/lib/memcpymove.h
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+++ b/arch/arm/lib/memcpymove.h
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@@ -280,6 +280,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBI
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199:
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pop {DAT3, DAT4, DAT5, DAT6, DAT7}
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pop {D, DAT1, DAT2, pc}
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+ UNWIND( .fnend )
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.endm
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.macro memcpy_medium_inner_loop backwards, align
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@@ -358,19 +359,13 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBI
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LAST .req ip
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OFF .req lr
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- .cfi_startproc
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+ UNWIND( .fnstart )
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push {D, DAT1, DAT2, lr}
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+ UNWIND( .fnend )
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- .cfi_def_cfa_offset 16
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- .cfi_rel_offset D, 0
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- .cfi_undefined S
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- .cfi_undefined N
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- .cfi_undefined DAT0
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- .cfi_rel_offset DAT1, 4
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- .cfi_rel_offset DAT2, 8
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- .cfi_undefined LAST
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- .cfi_rel_offset lr, 12
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+ UNWIND( .fnstart )
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+ UNWIND( .save {D, DAT1, DAT2, lr} )
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.if backwards
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add D, D, N
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@@ -386,17 +381,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBI
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/* Long case */
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push {DAT3, DAT4, DAT5, DAT6, DAT7}
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+ UNWIND( .fnend )
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- .cfi_def_cfa_offset 36
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- .cfi_rel_offset D, 20
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- .cfi_rel_offset DAT1, 24
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- .cfi_rel_offset DAT2, 28
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- .cfi_rel_offset DAT3, 0
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- .cfi_rel_offset DAT4, 4
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- .cfi_rel_offset DAT5, 8
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- .cfi_rel_offset DAT6, 12
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- .cfi_rel_offset DAT7, 16
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- .cfi_rel_offset lr, 32
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+ UNWIND( .fnstart )
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+ UNWIND( .save {D, DAT1, DAT2, lr} )
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+ UNWIND( .save {DAT3, DAT4, DAT5, DAT6, DAT7} )
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/* Adjust N so that the decrement instruction can also test for
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* inner loop termination. We want it to stop when there are
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@@ -436,16 +425,10 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBI
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156: memcpy_long_inner_loop backwards, 2
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157: memcpy_long_inner_loop backwards, 3
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- .cfi_def_cfa_offset 16
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- .cfi_rel_offset D, 0
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- .cfi_rel_offset DAT1, 4
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- .cfi_rel_offset DAT2, 8
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- .cfi_same_value DAT3
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- .cfi_same_value DAT4
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- .cfi_same_value DAT5
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- .cfi_same_value DAT6
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- .cfi_same_value DAT7
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- .cfi_rel_offset lr, 12
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+ UNWIND( .fnend )
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+
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+ UNWIND( .fnstart )
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+ UNWIND( .save {D, DAT1, DAT2, lr} )
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160: /* Medium case */
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preload_all backwards, 0, 0, S, N, DAT2, OFF
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@@ -488,7 +471,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBI
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memcpy_short_inner_loop backwards, 0
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140: memcpy_short_inner_loop backwards, 1
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- .cfi_endproc
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+ UNWIND( .fnend )
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.unreq D
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.unreq S
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--- a/arch/arm/lib/memmove_rpi.S
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+++ b/arch/arm/lib/memmove_rpi.S
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@@ -27,6 +27,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBI
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*/
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#include <linux/linkage.h>
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+#include <asm/assembler.h>
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+#include <asm/unwind.h>
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#include "arm-mem.h"
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#include "memcpymove.h"
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