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>,
Conor Dooley <conor.dooley@microchip.com>
Subject: [PATCH v2 11/13] efi/riscv: libstub: mark when compiling libstub
Date: Mon, 28 Nov 2022 11:26:30 +0100 [thread overview]
Message-ID: <20221128102632.435174-12-heiko@sntech.de> (raw)
In-Reply-To: <20221128102632.435174-1-heiko@sntech.de>
From: Heiko Stuebner <heiko.stuebner@vrull.eu>
We may want to runtime-optimize some core functions (str*, mem*),
but not have this leak into libstub and cause build issues.
Instead libstub, for the short while it's running, should just use
the generic implementation.
So, to be able to determine whether functions, that are used both in
libstub and the main kernel, are getting compiled as part of libstub or
not, add a compile-flag we can check via #ifdef.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
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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next prev parent reply other threads:[~2022-11-28 10:28 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-28 10:26 [PATCH v2 0/13] Zbb string optimizations and call support in alternatives Heiko Stuebner
2022-11-28 10:26 ` [PATCH v2 01/13] RISC-V: add prefix to all constants/macros in parse_asm.h Heiko Stuebner
2022-11-29 22:19 ` Conor Dooley
2022-11-30 12:12 ` Heiko Stübner
2022-11-30 14:10 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 02/13] RISC-V: detach funct-values from their offset Heiko Stuebner
2022-11-29 22:47 ` Conor Dooley
2022-11-29 23:01 ` Conor Dooley
2022-11-30 14:04 ` Heiko Stübner
2022-11-30 14:16 ` Andrew Jones
2022-11-30 14:19 ` Heiko Stübner
2022-11-30 14:51 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 03/13] RISC-V: add ebreak instructions to definitions Heiko Stuebner
2022-11-29 22:56 ` Conor Dooley
2022-11-30 15:08 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 04/13] RISC-V: Move riscv_insn_is_* macros into a common header Heiko Stuebner
2022-11-29 23:09 ` Conor Dooley
2022-11-29 23:14 ` Conor Dooley
2022-11-30 14:53 ` Heiko Stübner
2022-11-30 15:44 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 05/13] RISC-V: rename parse_asm.h to insn.h Heiko Stuebner
2022-11-29 23:13 ` Conor Dooley
2022-11-30 15:47 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 06/13] RISC-V: kprobes: use central defined funct3 constants Heiko Stuebner
2022-11-29 23:22 ` Conor Dooley
2022-11-30 19:18 ` Heiko Stübner
2022-11-30 15:51 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 07/13] RISC-V: add auipc elements to parse_asm header Heiko Stuebner
2022-11-29 23:36 ` Conor Dooley
2022-11-30 14:43 ` Heiko Stübner
2022-11-30 15:56 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 08/13] RISC-V: add U-type imm parsing " Heiko Stuebner
2022-11-29 23:38 ` Conor Dooley
2022-11-30 19:27 ` Heiko Stübner
2022-11-30 19:41 ` Conor Dooley
2022-11-30 16:02 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 09/13] RISC-V: add rd reg " Heiko Stuebner
2022-11-29 23:41 ` Conor Dooley
2022-11-30 16:12 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 10/13] RISC-V: fix auipc-jalr addresses in patched alternatives Heiko Stuebner
2022-11-30 16:37 ` Conor Dooley
2022-11-28 10:26 ` Heiko Stuebner [this message]
2022-11-28 10:26 ` [PATCH v2 12/13] RISC-V: add infrastructure to allow different str* implementations Heiko Stuebner
2022-11-28 10:26 ` [PATCH v2 13/13] RISC-V: add zbb support to string functions Heiko Stuebner
2022-11-30 16:53 ` Conor Dooley
2022-11-30 17:14 ` Conor Dooley
2022-11-30 21:28 ` Heiko Stübner
2022-11-29 22:02 ` [PATCH v2 0/13] Zbb string optimizations and call support in alternatives Conor Dooley
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