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c175b21ce4
Bring in the fixes for GCC 7 through 13. https://rtx.meta.security/mitigation/2023/09/12/CVE-2023-4039.html https://developer.arm.com/Arm%20Security%20Center/GCC%20Stack%20Protector%20Vulnerability%20AArch64 Signed-off-by: Chris Packham <judge.packham@gmail.com>
39 lines
1.4 KiB
Diff
39 lines
1.4 KiB
Diff
From 4e62049e403b141e6f916176160dac8cbd65fe47 Mon Sep 17 00:00:00 2001
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From: Richard Sandiford <richard.sandiford@arm.com>
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Date: Tue, 12 Sep 2023 16:07:18 +0100
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Subject: [PATCH 26/32] aarch64: Minor initial adjustment tweak
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This patch just changes a calculation of initial_adjust
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to one that makes it slightly more obvious that the total
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adjustment is frame.frame_size.
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gcc/
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* config/aarch64/aarch64.cc (aarch64_layout_frame): Tweak
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calculation of initial_adjust for frames in which all saves
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are SVE saves.
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---
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gcc/config/aarch64/aarch64.cc | 5 ++---
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1 file changed, 2 insertions(+), 3 deletions(-)
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diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
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index 31b00094c2a7..1aa79da0673c 100644
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--- a/gcc/config/aarch64/aarch64.cc
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+++ b/gcc/config/aarch64/aarch64.cc
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@@ -8675,11 +8675,10 @@ aarch64_layout_frame (void)
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{
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/* Frame in which all saves are SVE saves:
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- sub sp, sp, hard_fp_offset + below_hard_fp_saved_regs_size
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+ sub sp, sp, frame_size - bytes_below_saved_regs
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save SVE registers relative to SP
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sub sp, sp, bytes_below_saved_regs */
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- frame.initial_adjust = (frame.bytes_above_hard_fp
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- + frame.below_hard_fp_saved_regs_size);
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+ frame.initial_adjust = frame.frame_size - frame.bytes_below_saved_regs;
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frame.final_adjust = frame.bytes_below_saved_regs;
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}
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else if (frame.bytes_above_hard_fp.is_constant (&const_above_fp)
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--
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2.42.0
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