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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 15/17] efi_loader: Remove ENTRY(_start) from linker script
Date: Sun, 23 Feb 2025 21:55:22 -0800	[thread overview]
Message-ID: <20250224055524.1334929-16-CFSworks@gmail.com> (raw)
In-Reply-To: <20250224055524.1334929-1-CFSworks@gmail.com>

The EFI apps are built using ELF only as an intermediate "linker output"
format, with the final PE header crafted within the ELF to take effect
after the objcopy conversion to raw binary. As such, we really don't
care what the ELF header indicates as the entry point.

Because nothing that uses this linker script even defines a _start
symbol, this directive has no effect. On GNU ld, it is silently ignored.
On certain linkers (e.g. LLVM lld), a warning is logged. But in any
case, no entry point is set.

Therefore, remove it to silence warnings and avoid confusion.

Signed-off-by: Sam Edwards <CFSworks@gmail.com>
---
 lib/efi_loader/elf_efi.ldsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/efi_loader/elf_efi.ldsi b/lib/efi_loader/elf_efi.ldsi
index 190a88fb69e..dc4d1a3660e 100644
--- a/lib/efi_loader/elf_efi.ldsi
+++ b/lib/efi_loader/elf_efi.ldsi
@@ -10,7 +10,6 @@ PHDRS
 	data PT_LOAD FLAGS(3); /* SHF_WRITE | SHF_ALLOC */
 }
 
-ENTRY(_start)
 SECTIONS
 {
 	.text 0x0 : {
-- 
2.45.2


  parent reply	other threads:[~2025-02-24  5:58 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 ` [PATCH 08/17] x86: Fix call64's section flags Sam Edwards
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 ` Sam Edwards [this message]
2025-02-24  9:36   ` [PATCH 15/17] efi_loader: Remove ENTRY(_start) from linker script 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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