From: Christoph Muellner <christoph.muellner@vrull.eu>
To: libc-alpha@sourceware.org, Palmer Dabbelt <palmer@dabbelt.com>,
Darius Rad <darius@bluespec.com>,
Andrew Waterman <andrew@sifive.com>, DJ Delorie <dj@redhat.com>,
Vineet Gupta <vineetg@rivosinc.com>,
Kito Cheng <kito.cheng@sifive.com>,
Jeff Law <jeffreyalaw@gmail.com>,
Philipp Tomsich <philipp.tomsich@vrull.eu>,
Heiko Stuebner <heiko.stuebner@vrull.eu>
Cc: "Christoph Müllner" <christoph.muellner@vrull.eu>
Subject: [RFC PATCH 03/19] riscv: Add ENTRY_ALIGN() macro
Date: Tue, 7 Feb 2023 01:16:02 +0100 [thread overview]
Message-ID: <20230207001618.458947-4-christoph.muellner@vrull.eu> (raw)
In-Reply-To: <20230207001618.458947-1-christoph.muellner@vrull.eu>
From: Christoph Müllner <christoph.muellner@vrull.eu>
This patch adds an ENTRY_ALIGN() macro to generate
aligned function symbols in assembly files.
Since the LEAF() macro is a special-case of that,
we change LEAF() to be reflect this.
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
---
sysdeps/riscv/sys/asm.h | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/sysdeps/riscv/sys/asm.h b/sysdeps/riscv/sys/asm.h
index b782cfa2f2..de6394b984 100644
--- a/sysdeps/riscv/sys/asm.h
+++ b/sysdeps/riscv/sys/asm.h
@@ -46,14 +46,18 @@
# endif
#endif
-/* Declare leaf routine. */
-#define LEAF(symbol) \
- .globl symbol; \
- .align 2; \
- .type symbol,@function; \
+/* Define an entry point visible from C with custom p2-alignment. */
+#define ENTRY_ALIGN(symbol, align) \
+ .globl symbol; \
+ .p2align align; \
+ .type symbol,@function; \
C_LABEL(symbol) \
cfi_startproc;
+/* Declare leaf routine. */
+#define LEAF(symbol) \
+ ENTRY_ALIGN (symbol, 1)
+
/* Mark end of function. */
#undef END
#define END(function) \
--
2.39.1
next prev parent reply other threads:[~2023-02-07 0:16 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-07 0:15 [RFC PATCH 00/19] riscv: ifunc support with optimized mem*/str*/cpu_relax routines Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 01/19] Inhibit early libcalls before ifunc support is ready Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 02/19] riscv: LEAF: Use C_LABEL() to construct the asm name for a C symbol Christoph Muellner
2023-02-07 0:16 ` Christoph Muellner [this message]
2023-02-07 0:16 ` [RFC PATCH 04/19] riscv: Add hart feature run-time detection framework Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 05/19] riscv: Introduction of ISA extensions Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 06/19] riscv: Adding ISA string parser for environment variables Christoph Muellner
2023-02-07 6:20 ` David Abdurachmanov
2023-02-07 0:16 ` [RFC PATCH 07/19] riscv: hart-features: Add fast_unaligned property Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 08/19] riscv: Add (empty) ifunc framework Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 09/19] riscv: Add ifunc support for memset Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 10/19] riscv: Add accelerated memset routines for RV64 Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 11/19] riscv: Add ifunc support for memcpy/memmove Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 12/19] riscv: Add accelerated memcpy/memmove routines for RV64 Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 13/19] riscv: Add ifunc support for strlen Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 14/19] riscv: Add accelerated strlen routine Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 15/19] riscv: Add ifunc support for strcmp Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 16/19] riscv: Add accelerated strcmp routines Christoph Muellner
2023-02-07 11:57 ` Xi Ruoyao
2023-02-07 14:15 ` Christoph Müllner
2023-03-31 5:06 ` Jeff Law
2023-03-31 12:31 ` Adhemerval Zanella Netto
2023-03-31 14:30 ` Jeff Law
2023-03-31 14:48 ` Adhemerval Zanella Netto
2023-03-31 17:19 ` Palmer Dabbelt
2023-03-31 14:32 ` Jeff Law
2023-02-07 0:16 ` [RFC PATCH 17/19] riscv: Add ifunc support for strncmp Christoph Muellner
2023-02-07 0:16 ` [RFC PATCH 18/19] riscv: Add an optimized strncmp routine Christoph Muellner
2023-02-07 1:19 ` Noah Goldstein
2023-02-08 15:13 ` Philipp Tomsich
2023-02-08 17:55 ` Palmer Dabbelt
2023-02-08 19:48 ` Adhemerval Zanella Netto
2023-02-08 18:04 ` Noah Goldstein
2023-02-07 0:16 ` [RFC PATCH 19/19] riscv: Add __riscv_cpu_relax() to allow yielding in busy loops Christoph Muellner
2023-02-07 0:23 ` Andrew Waterman
2023-02-07 0:29 ` Christoph Müllner
2023-02-07 2:59 ` [RFC PATCH 00/19] riscv: ifunc support with optimized mem*/str*/cpu_relax routines Kito Cheng
2023-02-07 16:40 ` Adhemerval Zanella Netto
2023-02-07 17:16 ` DJ Delorie
2023-02-07 19:32 ` Philipp Tomsich
2023-02-07 21:14 ` DJ Delorie
2023-02-08 11:26 ` Christoph Müllner
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