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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 03/12] ARM: asm: setjmp: annotate setjmp/longjmp for GCC
Date: Mon, 15 Feb 2021 11:36:56 +0100	[thread overview]
Message-ID: <20210215103704.32537-4-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20210215103704.32537-1-a.fatoum@pengutronix.de>

To avoid invalid optimizations and to enable warnings, GCC must be told
that setjmp and longjmp are to be handled specially. Add the missing
attributes.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 arch/arm/include/asm/setjmp.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/setjmp.h b/arch/arm/include/asm/setjmp.h
index 62bac613d6e1..538d9cd50651 100644
--- a/arch/arm/include/asm/setjmp.h
+++ b/arch/arm/include/asm/setjmp.h
@@ -23,7 +23,7 @@ struct jmp_buf_data {
 
 typedef struct jmp_buf_data jmp_buf[1];
 
-int setjmp(jmp_buf jmp);
-void longjmp(jmp_buf jmp, int ret);
+int setjmp(jmp_buf jmp) __attribute__((returns_twice));
+void longjmp(jmp_buf jmp, int ret) __attribute__((noreturn));
 
 #endif /* _SETJMP_H_ */
-- 
2.29.2


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  parent reply	other threads:[~2021-02-15 10:41 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-15 10:36 [PATCH 00/12] poller: run pollers as proper coroutines (green threads) Ahmad Fatoum
2021-02-15 10:36 ` [PATCH 01/12] common: add coroutine support Ahmad Fatoum
2021-02-15 10:36 ` [PATCH 02/12] poller: run pollers as proper coroutines if architecture supports it Ahmad Fatoum
2021-02-15 10:36 ` Ahmad Fatoum [this message]
2021-02-15 10:36 ` [PATCH 04/12] ARM: asm: setjmp: implement coroutine dependency initjmp() Ahmad Fatoum
2021-02-15 10:36 ` [PATCH 05/12] sandbox: asm: implement setjmp/longjmp/initjmp Ahmad Fatoum
2021-02-15 10:36 ` [PATCH 06/12] poller: command: add new coroutine check Ahmad Fatoum
2021-02-15 10:37 ` [PATCH 07/12] slice: have assert_command_context() yield until true if possible Ahmad Fatoum
2021-02-15 10:37 ` [PATCH 08/12] poller: implement basic Linux-like completion API Ahmad Fatoum
2021-02-15 10:37 ` [PATCH 09/12] include: add kthread wrappers for pollers Ahmad Fatoum
2021-02-15 12:31   ` Sascha Hauer
2021-02-15 10:37 ` [PATCH 10/12] usbgadget: ums: run gadget loop in a background coroutine if possible Ahmad Fatoum
2021-02-15 10:37 ` [PATCH 11/12] usbgadget: refactor usbgadget_register to accept array Ahmad Fatoum
2021-02-15 10:37 ` [PATCH 12/12] usbgadget: multi: wire mass storage gadget into composite gadget Ahmad Fatoum

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