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From: Sam Edwards <cfsworks@gmail.com>
To: u-boot@lists.denx.de
Cc: Sam Edwards <CFSworks@gmail.com>, Tom Rini <trini@konsulko.com>
Subject: [RFC PATCH 05/10] arm: add aligned-memory aliases to eabi_compat
Date: Sat, 20 May 2023 14:55:42 -0600	[thread overview]
Message-ID: <20230520205547.1009254-6-CFSworks@gmail.com> (raw)
In-Reply-To: <20230520205547.1009254-1-CFSworks@gmail.com>

These are sometimes used by LLVM's code-generator, when it can guarantee
that the memory buffer being passed is aligned on a (4- or 8-byte)
boundary. They can safely be aliases to the unaligned versions.

Signed-off-by: Sam Edwards <CFSworks@gmail.com>
---

 arch/arm/lib/eabi_compat.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/lib/eabi_compat.c b/arch/arm/lib/eabi_compat.c
index 059ca07265..d00f68a3f6 100644
--- a/arch/arm/lib/eabi_compat.c
+++ b/arch/arm/lib/eabi_compat.c
@@ -31,12 +31,24 @@ void __aeabi_memcpy(void *dest, const void *src, size_t n)
 	(void) memcpy(dest, src, n);
 }
 
+void __aeabi_memcpy4(void *dest, const void *src, size_t n) __alias(__aeabi_memcpy);
+
+void __aeabi_memcpy8(void *dest, const void *src, size_t n) __alias(__aeabi_memcpy);
+
 void __aeabi_memset(void *dest, size_t n, int c)
 {
 	(void) memset(dest, c, n);
 }
 
+void __aeabi_memset4(void *dest, size_t n, int c) __alias(__aeabi_memset);
+
+void __aeabi_memset8(void *dest, size_t n, int c) __alias(__aeabi_memset);
+
 void __aeabi_memclr(void *dest, size_t n)
 {
 	(void)memset(dest, 0, n);
 }
+
+void __aeabi_memclr4(void *dest, size_t n) __alias(__aeabi_memclr);
+
+void __aeabi_memclr8(void *dest, size_t n) __alias(__aeabi_memclr);
-- 
2.39.2


  parent reply	other threads:[~2023-05-21 12:34 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-20 20:55 [RFC PATCH 00/10] Improve ARM target's support for LLVM toolchain Sam Edwards
2023-05-20 20:55 ` [RFC PATCH 01/10] makefile: Fix symbol typo in binary_size_check Sam Edwards
2023-05-20 20:55 ` [RFC PATCH 02/10] arm: set alignment properly for asm funcs Sam Edwards
2023-05-20 20:55 ` [RFC PATCH 03/10] arm: exclude eabi_compat from LTO Sam Edwards
2023-05-20 20:55 ` [RFC PATCH 04/10] arm: add __aeabi_memclr in eabi_compat Sam Edwards
2023-05-20 20:55 ` Sam Edwards [this message]
2023-05-20 20:55 ` [RFC PATCH 06/10] arm: discard .gnu.version* sections Sam Edwards
2023-05-20 20:55 ` [RFC PATCH 07/10] arm: efi_loader: discard hash, unwind information Sam Edwards
2023-05-22  7:00   ` Ilias Apalodimas
2023-05-22 19:25     ` Sam Edwards
2023-05-22 20:28       ` Ilias Apalodimas
2023-05-23  5:08       ` Heinrich Schuchardt
2023-05-20 20:55 ` [RFC PATCH 08/10] arm: efi_loader: move .dynamic out of .text in EFI Sam Edwards
2023-05-22  7:30   ` Ilias Apalodimas
2023-05-22  8:10   ` Heinrich Schuchardt
2023-05-22 17:13     ` Sam Edwards
2023-05-20 20:55 ` [RFC PATCH 09/10] arm: discard all .dyn* sections Sam Edwards
2023-05-20 20:55 ` [RFC PATCH 10/10] arm: migrate away from sections.c Sam Edwards
2023-05-23  6:56   ` Ilias Apalodimas
2023-05-21  4:26 ` [RFC PATCH 00/10] Improve ARM target's support for LLVM toolchain Heinrich Schuchardt
2023-05-21  4:59   ` Sam Edwards
2023-05-22  6:52     ` Ilias Apalodimas
2023-05-22 19:37       ` Sam Edwards
2023-05-22 20:15         ` Heinrich Schuchardt
2023-05-23  6:54         ` Ilias Apalodimas
2023-05-22 10:39     ` Michal Simek
2023-05-22 15:30       ` Tom Rini
2023-05-22 19:59         ` Sam Edwards
2023-05-22 21:13           ` Tom Rini

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