From: Sathvika Vasireddy <sv@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: peterz@infradead.org, npiggin@gmail.com,
linux-kernel@vger.kernel.org, aik@ozlabs.ru, mingo@redhat.com,
sv@linux.ibm.com, rostedt@goodmis.org, jpoimboe@redhat.com,
naveen.n.rao@linux.vnet.ibm.com, mbenes@suse.cz,
chenzhongjin@huawei.com, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/16] powerpc: Replace unreachable() with it's builtin variant in WARN_ON()
Date: Mon, 8 Aug 2022 17:18:53 +0530 [thread overview]
Message-ID: <20220808114908.240813-2-sv@linux.ibm.com> (raw)
In-Reply-To: <20220808114908.240813-1-sv@linux.ibm.com>
objtool is throwing *unannotated intra-function call*
warnings with a few instructions that are marked
unreachable. Replace unreachable() with __builtin_unreachable()
to fix these warnings, as the codegen remains same
with unreachable() and __builtin_unreachable().
Signed-off-by: Sathvika Vasireddy <sv@linux.ibm.com>
---
arch/powerpc/include/asm/bug.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h
index 61a4736355c2..074be1a78c56 100644
--- a/arch/powerpc/include/asm/bug.h
+++ b/arch/powerpc/include/asm/bug.h
@@ -99,7 +99,7 @@
__label__ __label_warn_on; \
\
WARN_ENTRY("twi 31, 0, 0", BUGFLAG_WARNING | (flags), __label_warn_on); \
- unreachable(); \
+ __builtin_unreachable(); \
\
__label_warn_on: \
break; \
--
2.31.1
next prev parent reply other threads:[~2022-08-08 11:51 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-08 11:48 [PATCH 00/16] objtool: Enable and implement --mcount option on powerpc Sathvika Vasireddy
2022-08-08 11:48 ` Sathvika Vasireddy [this message]
2022-08-10 8:28 ` [PATCH 01/16] powerpc: Replace unreachable() with it's builtin variant in WARN_ON() Christophe Leroy
2022-08-18 10:46 ` Naveen N. Rao
2022-08-18 11:06 ` Christophe Leroy
2022-08-18 12:25 ` Naveen N. Rao
2022-08-26 10:18 ` Christophe Leroy
2022-08-29 5:46 ` Sathvika Vasireddy
2022-08-08 11:48 ` [PATCH 02/16] powerpc: override __ALIGN() and __ALIGN_STR() macros Sathvika Vasireddy
2022-08-10 8:31 ` Christophe Leroy
2022-08-18 10:46 ` Sathvika Vasireddy
2022-08-08 11:48 ` [PATCH 03/16] powerpc: Fix objtool unannotated intra-function call warnings Sathvika Vasireddy
2022-08-10 8:32 ` Christophe Leroy
2022-08-18 10:55 ` Sathvika Vasireddy
2022-08-08 11:48 ` [PATCH 04/16] powerpc: curb " Sathvika Vasireddy
2022-08-08 11:48 ` [PATCH 05/16] powerpc: Skip objtool from running on drivers/crypto/vmx/aesp8-ppc.o Sathvika Vasireddy
2022-08-10 8:34 ` Christophe Leroy
2022-08-18 11:12 ` Sathvika Vasireddy
2022-08-08 11:48 ` [PATCH 06/16] powerpc: Fix objtool unannotated intra-function call warnings on PPC32 Sathvika Vasireddy
2022-08-09 23:31 ` kernel test robot
2022-08-08 11:48 ` [PATCH 07/16] powerpc: Skip objtool from running on VDSO files Sathvika Vasireddy
2022-08-08 11:49 ` [PATCH 08/16] objtool: Fix SEGFAULT Sathvika Vasireddy
2022-08-08 11:49 ` [PATCH 09/16] objtool: Use target file endianness instead of a compiled constant Sathvika Vasireddy
2022-08-08 11:49 ` [PATCH 10/16] objtool: Use target file class size " Sathvika Vasireddy
2022-08-08 11:49 ` [PATCH 11/16] objtool: Add --mnop as an option to --mcount Sathvika Vasireddy
2022-08-08 11:49 ` [PATCH 12/16] objtool: Read special sections with alts only when specific options are selected Sathvika Vasireddy
2022-08-08 11:49 ` [PATCH 13/16] objtool: Use macros to define arch specific reloc types Sathvika Vasireddy
2022-08-08 11:49 ` [PATCH 14/16] objtool: Add arch specific function arch_ftrace_match() Sathvika Vasireddy
2022-08-12 10:58 ` kernel test robot
2022-08-13 13:48 ` kernel test robot
2022-08-08 11:49 ` [PATCH 15/16] objtool/powerpc: Enable objtool to be built on ppc Sathvika Vasireddy
2022-08-08 11:49 ` [PATCH 16/16] objtool/powerpc: Add --mcount specific implementation Sathvika Vasireddy
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