linux-kernel - [PATCH v4 2/4] RISC-V: lib: Add pi aliases for string functions

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Message-ID: <20240709173937.510084-3-jesse@rivosinc.com>
Date: Tue,  9 Jul 2024 13:39:35 -0400
From: Jesse Taube <jesse@...osinc.com>
To: linux-riscv@...ts.infradead.org
Cc: Ard Biesheuvel <ardb@...nel.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>,
	Jesse Taube <jesse@...osinc.com>,
	Alexandre Ghiti <alexghiti@...osinc.com>,
	Conor Dooley <conor.dooley@...rochip.com>,
	Masahiro Yamada <masahiroy@...nel.org>,
	Wende Tan <twd2.me@...il.com>,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>,
	Sami Tolvanen <samitolvanen@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Baoquan He <bhe@...hat.com>,
	"Mike Rapoport (IBM)" <rppt@...nel.org>,
	"Vishal Moola (Oracle)" <vishal.moola@...il.com>,
	linux-kernel@...r.kernel.org,
	llvm@...ts.linux.dev,
	Charlie Jenkins <charlie@...osinc.com>
Subject: [PATCH v4 2/4] RISC-V: lib: Add pi aliases for string functions

memset, strcmp, and strncmp are all used in the __pi_ section,
add SYM_FUNC_ALIAS for them.

When KASAN is enabled in <asm/string.h> __pi___memset is also needed.

Suggested-by: Charlie Jenkins <charlie@...osinc.com>
Signed-off-by: Jesse Taube <jesse@...osinc.com>
Reviewed-by: Charlie Jenkins <charlie@...osinc.com>
Reviewed-by: Alexandre Ghiti <alexghiti@...osinc.com>
---
V2 -> V3:
 - New patch
V3 -> V4:
 - Fix duplicate the in commit message
---
 arch/riscv/lib/memset.S  | 2 ++
 arch/riscv/lib/strcmp.S  | 1 +
 arch/riscv/lib/strncmp.S | 1 +
 3 files changed, 4 insertions(+)

diff --git a/arch/riscv/lib/memset.S b/arch/riscv/lib/memset.S
index 35f358e70bdb..da23b8347e2d 100644
--- a/arch/riscv/lib/memset.S
+++ b/arch/riscv/lib/memset.S
@@ -111,3 +111,5 @@ SYM_FUNC_START(__memset)
 	ret
 SYM_FUNC_END(__memset)
 SYM_FUNC_ALIAS_WEAK(memset, __memset)
+SYM_FUNC_ALIAS(__pi_memset, __memset)
+SYM_FUNC_ALIAS(__pi___memset, __memset)
diff --git a/arch/riscv/lib/strcmp.S b/arch/riscv/lib/strcmp.S
index 687b2bea5c43..bc73325b2fd1 100644
--- a/arch/riscv/lib/strcmp.S
+++ b/arch/riscv/lib/strcmp.S
@@ -120,3 +120,4 @@ strcmp_zbb:
 .option pop
 #endif
 SYM_FUNC_END(strcmp)
+SYM_FUNC_ALIAS(__pi_strcmp, strcmp)
diff --git a/arch/riscv/lib/strncmp.S b/arch/riscv/lib/strncmp.S
index aba5b3148621..b36325a57f6a 100644
--- a/arch/riscv/lib/strncmp.S
+++ b/arch/riscv/lib/strncmp.S
@@ -136,3 +136,4 @@ strncmp_zbb:
 .option pop
 #endif
 SYM_FUNC_END(strncmp)
+SYM_FUNC_ALIAS(__pi_strncmp, strncmp)
-- 
2.45.2