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From: Heiko Stuebner <heiko@sntech.de>
To: linux-riscv@lists.infradead.org, palmer@dabbelt.com
Cc: christoph.muellner@vrull.eu, prabhakar.csengg@gmail.com,
	conor@kernel.org, philipp.tomsich@vrull.eu,
	ajones@ventanamicro.com, heiko@sntech.de,
	emil.renner.berthing@canonical.com,
	Heiko Stuebner <heiko.stuebner@vrull.eu>
Subject: [PATCH 1/7] efi/riscv: libstub: mark when compiling libstub
Date: Thu, 10 Nov 2022 17:49:18 +0100	[thread overview]
Message-ID: <20221110164924.529386-2-heiko@sntech.de> (raw)
In-Reply-To: <20221110164924.529386-1-heiko@sntech.de>

From: Heiko Stuebner <heiko.stuebner@vrull.eu>

We want to runtime-optimize some core functions (str*, mem*)
but not have this leak into libstub. Instead libstub
for the short while it's running should just use the generic
implementation.

To be able to determine whether functions are getting compiled
as part of libstub or not, add a compile-flag we can check
via #ifdef.

Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
---
 drivers/firmware/efi/libstub/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index b1601aad7e1a..39c8e3da1937 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -25,7 +25,7 @@ cflags-$(CONFIG_ARM)		:= $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) \
 				   -fno-builtin -fpic \
 				   $(call cc-option,-mno-single-pic-base)
 cflags-$(CONFIG_RISCV)		:= $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) \
-				   -fpic
+				   -fpic -DRISCV_EFISTUB
 cflags-$(CONFIG_LOONGARCH)	:= $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) \
 				   -fpie
 
-- 
2.35.1


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  reply	other threads:[~2022-11-10 16:50 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-10 16:49 [PATCH 0/7] Zbb string optimizations and call support in alternatives Heiko Stuebner
2022-11-10 16:49 ` Heiko Stuebner [this message]
2022-11-13 17:16   ` [PATCH 1/7] efi/riscv: libstub: mark when compiling libstub Conor Dooley
2022-11-13 17:20     ` Heiko Stübner
2022-11-13 18:06       ` Conor Dooley
2022-11-10 16:49 ` [PATCH 2/7] RISC-V: add auipc elements to parse_asm header Heiko Stuebner
2022-11-13 17:18   ` Conor Dooley
2022-11-10 16:49 ` [PATCH 3/7] RISC-V: add U-type imm parsing " Heiko Stuebner
2022-11-13 19:06   ` Conor Dooley
2022-11-10 16:49 ` [PATCH 4/7] RISC-V: add rd reg " Heiko Stuebner
2022-11-13 19:08   ` Conor Dooley
2022-11-10 16:49 ` [PATCH 5/7] RISC-V: fix auipc-jalr addresses in patched alternatives Heiko Stuebner
2022-11-13 20:31   ` Conor Dooley
2022-11-14 10:57   ` Emil Renner Berthing
2022-11-14 11:35     ` Andrew Jones
2022-11-14 11:38       ` Emil Renner Berthing
2022-11-14 11:38       ` Heiko Stübner
2022-11-14 12:15         ` Andrew Jones
2022-11-14 12:29           ` Emil Renner Berthing
2022-11-14 12:47         ` Philipp Tomsich
2022-11-15 14:28   ` Lad, Prabhakar
2022-11-17 11:51     ` Heiko Stübner
2022-11-21  9:50   ` Lad, Prabhakar
2022-11-21 11:27     ` Heiko Stübner
2022-11-21 15:06       ` Lad, Prabhakar
2022-11-21 21:31         ` Lad, Prabhakar
2022-11-21 22:17           ` Heiko Stübner
2022-11-21 22:38             ` Heiko Stübner
2022-11-22  0:16               ` Lad, Prabhakar
2022-11-21 23:59             ` Lad, Prabhakar
2022-11-22 10:59             ` Lad, Prabhakar
2022-11-22 11:19               ` Heiko Stübner
2022-11-22 11:37                 ` Heiko Stübner
2022-11-22 12:28                   ` Lad, Prabhakar
2022-11-10 16:49 ` [PATCH 6/7] RISC-V: add infrastructure to allow different str* implementations Heiko Stuebner
2022-11-13 22:07   ` Conor Dooley
2022-11-10 16:49 ` [PATCH 7/7] RISC-V: add zbb support to string functions Heiko Stuebner
2022-11-13 23:29   ` Conor Dooley
2022-11-13 23:47     ` Heiko Stübner
2022-11-24 22:23     ` Heiko Stübner
2022-11-24 22:32       ` Conor Dooley
2022-11-24 23:51         ` Heiko Stuebner
2022-11-25  7:49           ` Andrew Jones
2022-11-25  8:17             ` Conor.Dooley
     [not found]             ` <CAEg0e7h9skbWPVDsz9CdB8dATN5XM9eT-uPY0A7xRZmX=qTU6A@mail.gmail.com>
2022-11-25 15:28               ` Andrew Jones
2022-11-25 16:35                 ` Christoph Müllner
2022-11-25 16:39                   ` Conor Dooley
2022-11-25 17:02                     ` Christoph Müllner
2022-11-25 17:11                       ` Conor Dooley
2022-11-25 17:42                         ` Christoph Müllner
2022-11-25 16:36                 ` Conor Dooley

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