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From: Sam Edwards <cfsworks@gmail.com>
To: Tom Rini <trini@konsulko.com>,
	Heinrich Schuchardt <xypron.glpk@gmx.de>,
	Ilias Apalodimas <ilias.apalodimas@linaro.org>,
	Simon Glass <sjg@chromium.org>, Bin Meng <bmeng.cn@gmail.com>
Cc: Marek Vasut <marek.vasut+renesas@mailbox.org>,
	Sumit Garg <sumit.garg@linaro.org>,
	Peter Robinson <pbrobinson@gmail.com>,
	Richard Henderson <richard.henderson@linaro.org>,
	u-boot@lists.denx.de, Sam Edwards <CFSworks@gmail.com>
Subject: [PATCH 08/17] x86: Fix call64's section flags
Date: Sun, 23 Feb 2025 21:55:15 -0800	[thread overview]
Message-ID: <20250224055524.1334929-9-CFSworks@gmail.com> (raw)
In-Reply-To: <20250224055524.1334929-1-CFSworks@gmail.com>

When a section is not flagged with SHF_ALLOC, LLD's --gc-sections
algorithm fails to visit the sections that it references. As a result of
this, LLD was dropping the call64.o(.data) section, which is itself only
referenced by .text_call64.

This appears to be a bug in LLD, but the .section directive for
.text_call64 should really have the correct flags either way.

Add `"ax"` to mark the section as ALLOC ("supposed to be loaded") and
CODE ("supposed to be executed").

Fixes: 7dc82591d68e2a ("x86: Move call64 into its own section")
Signed-off-by: Sam Edwards <CFSworks@gmail.com>
---
 arch/x86/cpu/i386/call64.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/cpu/i386/call64.S b/arch/x86/cpu/i386/call64.S
index d81bcc6f8f4..424732fa3fa 100644
--- a/arch/x86/cpu/i386/call64.S
+++ b/arch/x86/cpu/i386/call64.S
@@ -10,7 +10,7 @@
 #include <asm/processor-flags.h>
 
 .code32
-.section .text_call64
+.section .text_call64, "ax"
 .globl cpu_call64
 cpu_call64:
 	/*
-- 
2.45.2


  parent reply	other threads:[~2025-02-24  5:57 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-24  5:55 [PATCH 00/17] Various toolchain compatibility fixes/improvements Sam Edwards
2025-02-24  5:55 ` [PATCH 01/17] arm: Remove stray .mmutable reference in linker script Sam Edwards
2025-02-26 14:44   ` Ilias Apalodimas
2025-02-24  5:55 ` [PATCH 02/17] arm: Exclude eabi_compat from LTO Sam Edwards
2025-03-09  8:47   ` Ilias Apalodimas
2025-02-24  5:55 ` [PATCH 03/17] arm: Add __aeabi_memclr in eabi_compat Sam Edwards
2025-03-09  8:45   ` Ilias Apalodimas
2025-02-24  5:55 ` [PATCH 04/17] arm: Add aligned-memory aliases to eabi_compat Sam Edwards
2025-03-09  8:51   ` Ilias Apalodimas
2025-02-24  5:55 ` [PATCH 05/17] arm: Discard unwanted sections in linker script Sam Edwards
2025-02-24  5:55 ` [PATCH 06/17] arm: Use -mstrict-align when the MMU is off Sam Edwards
2025-02-24  8:20   ` Heinrich Schuchardt
2025-02-24 11:21   ` Mark Kettenis
2025-02-24  5:55 ` [PATCH 07/17] arm: Replace 'adrl' in EFI crt0 Sam Edwards
2025-02-24  8:42   ` Heinrich Schuchardt
2025-02-25  2:16     ` Sam Edwards
2025-02-24  5:55 ` Sam Edwards [this message]
2025-02-24  5:55 ` [PATCH 09/17] spl: riscv: opensbi: Error on misaligned FDT Sam Edwards
2025-02-24  8:54   ` Heinrich Schuchardt
2025-02-24 14:54     ` Tom Rini
2025-02-25  2:29       ` Sam Edwards
2025-02-24  5:55 ` [PATCH 10/17] spl: Align FDT load address Sam Edwards
2025-02-24  8:59   ` Heinrich Schuchardt
2025-02-24 14:56     ` Tom Rini
2025-02-24 15:54       ` Heinrich Schuchardt
2025-02-24 16:03         ` Tom Rini
2025-02-25  2:48           ` Sam Edwards
2025-02-24  5:55 ` [PATCH 11/17] makefile: Fix symbol typo in binary_size_check Sam Edwards
2025-02-24  9:17   ` Heinrich Schuchardt
2025-02-25 13:04     ` Simon Glass
2025-02-24  5:55 ` [PATCH 12/17] makefile: Avoid objcopy --gap-fill for .hex/.srec Sam Edwards
2025-02-24  5:55 ` [PATCH 13/17] makefile: Add `norelro` linker option Sam Edwards
2025-03-11 14:31   ` Ilias Apalodimas
2025-02-24  5:55 ` [PATCH 14/17] makefile: Add READELF command variable Sam Edwards
2025-02-24  9:20   ` Heinrich Schuchardt
2025-02-26  9:51   ` Ilias Apalodimas
2025-02-24  5:55 ` [PATCH 15/17] efi_loader: Remove ENTRY(_start) from linker script Sam Edwards
2025-02-24  9:36   ` Heinrich Schuchardt
2025-02-25  2:21     ` Sam Edwards
2025-02-24  5:55 ` [PATCH 16/17] efi_loader: Move .dynamic out of .text in EFI Sam Edwards
2025-02-24  7:34   ` Heinrich Schuchardt
2025-03-04  2:37     ` Sam Edwards
2025-02-24  5:55 ` [PATCH 17/17] scripts/Makefile.lib: efi: Preserve the .dynstr section as well Sam Edwards
2025-02-24  9:46   ` Heinrich Schuchardt
2025-03-06  3:46 ` [PATCH 00/17] Various toolchain compatibility fixes/improvements Sam Edwards
2025-03-06 13:15   ` Ilias Apalodimas
2025-03-06 15:47   ` Tom Rini
2025-03-08  6:48     ` Sam Edwards
2025-03-10 14:07       ` Tom Rini

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