From: Christophe Leroy <christophe.leroy@csgroup.eu> To: Sathvika Vasireddy <sv@linux.ibm.com>, "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org> Cc: "jpoimboe@redhat.com" <jpoimboe@redhat.com>, "peterz@infradead.org" <peterz@infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "aik@ozlabs.ru" <aik@ozlabs.ru>, "mpe@ellerman.id.au" <mpe@ellerman.id.au>, "mingo@redhat.com" <mingo@redhat.com>, "rostedt@goodmis.org" <rostedt@goodmis.org>, "mbenes@suse.cz" <mbenes@suse.cz>, "npiggin@gmail.com" <npiggin@gmail.com>, "chenzhongjin@huawei.com" <chenzhongjin@huawei.com>, "naveen.n.rao@linux.vnet.ibm.com" <naveen.n.rao@linux.vnet.ibm.com> Subject: Re: [PATCH v2 04/16] powerpc: Curb objtool unannotated intra-function warnings Date: Tue, 30 Aug 2022 06:26:00 +0000 [thread overview] Message-ID: <8d32fdf4-578d-c762-9aa5-42d0e2a3d51a@csgroup.eu> (raw) In-Reply-To: <20220829055223.24767-5-sv@linux.ibm.com> Le 29/08/2022 à 07:52, Sathvika Vasireddy a écrit : > objtool throws the following unannotated intra-function call > warnings: > > arch/powerpc/kernel/entry_64.o: warning: objtool: .text+0x4: unannotated intra-function call > arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0xe64: unannotated intra-function call > arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0xee4: unannotated intra-function call > > Fix these warnings by annotating intra-function > call, using ANNOTATE_INTRA_FUNCTION_CALL macro, > to indicate that the branch targets are valid. > > Signed-off-by: Sathvika Vasireddy <sv@linux.ibm.com> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> > --- > arch/powerpc/kernel/entry_64.S | 2 ++ > arch/powerpc/kvm/book3s_hv_rmhandlers.S | 3 +++ > 2 files changed, 5 insertions(+) > > diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S > index 01ace4c56104..fb444bc64f3f 100644 > --- a/arch/powerpc/kernel/entry_64.S > +++ b/arch/powerpc/kernel/entry_64.S > @@ -14,6 +14,7 @@ > * code, and exception/interrupt return code for PowerPC. > */ > > +#include <linux/objtool.h> > #include <linux/errno.h> > #include <linux/err.h> > #include <asm/cache.h> > @@ -73,6 +74,7 @@ flush_branch_caches: > > // Flush the link stack > .rept 64 > + ANNOTATE_INTRA_FUNCTION_CALL > bl .+4 > .endr > b 1f > diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S > index de91118df0c5..ea39a0cf591a 100644 > --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S > +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S > @@ -30,6 +30,7 @@ > #include <asm/feature-fixups.h> > #include <asm/cpuidle.h> > #include <linux/linkage.h> > +#include <linux/objtool.h> > > /* Values in HSTATE_NAPPING(r13) */ > #define NAPPING_CEDE 1 > @@ -1523,12 +1524,14 @@ kvm_flush_link_stack: > > /* Flush the link stack. On Power8 it's up to 32 entries in size. */ > .rept 32 > + ANNOTATE_INTRA_FUNCTION_CALL > bl .+4 > .endr > > /* And on Power9 it's up to 64. */ > BEGIN_FTR_SECTION > .rept 32 > + ANNOTATE_INTRA_FUNCTION_CALL > bl .+4 > .endr > END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
WARNING: multiple messages have this Message-ID (diff)
From: Christophe Leroy <christophe.leroy@csgroup.eu> To: Sathvika Vasireddy <sv@linux.ibm.com>, "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org> Cc: "peterz@infradead.org" <peterz@infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "rostedt@goodmis.org" <rostedt@goodmis.org>, "aik@ozlabs.ru" <aik@ozlabs.ru>, "mingo@redhat.com" <mingo@redhat.com>, "npiggin@gmail.com" <npiggin@gmail.com>, "jpoimboe@redhat.com" <jpoimboe@redhat.com>, "naveen.n.rao@linux.vnet.ibm.com" <naveen.n.rao@linux.vnet.ibm.com>, "mbenes@suse.cz" <mbenes@suse.cz>, "chenzhongjin@huawei.com" <chenzhongjin@huawei.com> Subject: Re: [PATCH v2 04/16] powerpc: Curb objtool unannotated intra-function warnings Date: Tue, 30 Aug 2022 06:26:00 +0000 [thread overview] Message-ID: <8d32fdf4-578d-c762-9aa5-42d0e2a3d51a@csgroup.eu> (raw) In-Reply-To: <20220829055223.24767-5-sv@linux.ibm.com> Le 29/08/2022 à 07:52, Sathvika Vasireddy a écrit : > objtool throws the following unannotated intra-function call > warnings: > > arch/powerpc/kernel/entry_64.o: warning: objtool: .text+0x4: unannotated intra-function call > arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0xe64: unannotated intra-function call > arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0xee4: unannotated intra-function call > > Fix these warnings by annotating intra-function > call, using ANNOTATE_INTRA_FUNCTION_CALL macro, > to indicate that the branch targets are valid. > > Signed-off-by: Sathvika Vasireddy <sv@linux.ibm.com> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> > --- > arch/powerpc/kernel/entry_64.S | 2 ++ > arch/powerpc/kvm/book3s_hv_rmhandlers.S | 3 +++ > 2 files changed, 5 insertions(+) > > diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S > index 01ace4c56104..fb444bc64f3f 100644 > --- a/arch/powerpc/kernel/entry_64.S > +++ b/arch/powerpc/kernel/entry_64.S > @@ -14,6 +14,7 @@ > * code, and exception/interrupt return code for PowerPC. > */ > > +#include <linux/objtool.h> > #include <linux/errno.h> > #include <linux/err.h> > #include <asm/cache.h> > @@ -73,6 +74,7 @@ flush_branch_caches: > > // Flush the link stack > .rept 64 > + ANNOTATE_INTRA_FUNCTION_CALL > bl .+4 > .endr > b 1f > diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S > index de91118df0c5..ea39a0cf591a 100644 > --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S > +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S > @@ -30,6 +30,7 @@ > #include <asm/feature-fixups.h> > #include <asm/cpuidle.h> > #include <linux/linkage.h> > +#include <linux/objtool.h> > > /* Values in HSTATE_NAPPING(r13) */ > #define NAPPING_CEDE 1 > @@ -1523,12 +1524,14 @@ kvm_flush_link_stack: > > /* Flush the link stack. On Power8 it's up to 32 entries in size. */ > .rept 32 > + ANNOTATE_INTRA_FUNCTION_CALL > bl .+4 > .endr > > /* And on Power9 it's up to 64. */ > BEGIN_FTR_SECTION > .rept 32 > + ANNOTATE_INTRA_FUNCTION_CALL > bl .+4 > .endr > END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
next prev parent reply other threads:[~2022-08-30 6:26 UTC|newest] Thread overview: 128+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-08-29 5:52 [PATCH v2 00/16] objtool: Enable and implement --mcount option on powerpc Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-29 5:52 ` [PATCH v2 01/16] powerpc: Replace unreachable() with it's builtin variant in __WARN_FLAGS() Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:15 ` Christophe Leroy 2022-08-30 6:15 ` Christophe Leroy 2022-09-05 10:18 ` Naveen N. Rao 2022-09-05 10:18 ` Naveen N. Rao 2022-08-29 5:52 ` [PATCH v2 02/16] powerpc: override __ALIGN() and __ALIGN_STR() macros Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-29 13:26 ` Christophe Leroy 2022-08-29 13:26 ` Christophe Leroy 2022-08-29 14:39 ` Sathvika Vasireddy 2022-08-29 14:39 ` Sathvika Vasireddy 2022-08-31 3:24 ` Nicholas Piggin 2022-08-31 3:24 ` Nicholas Piggin 2022-08-31 7:22 ` Michael Ellerman 2022-08-31 7:22 ` Michael Ellerman 2022-09-05 11:03 ` Peter Zijlstra 2022-09-05 11:03 ` Peter Zijlstra 2022-08-29 5:52 ` [PATCH v2 03/16] powerpc: Fix objtool unannotated intra-function call warnings Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:16 ` Christophe Leroy 2022-08-30 6:16 ` Christophe Leroy 2022-08-30 12:42 ` Christophe Leroy 2022-08-30 12:42 ` Christophe Leroy 2022-09-05 11:02 ` Peter Zijlstra 2022-09-05 11:02 ` Peter Zijlstra 2022-08-29 5:52 ` [PATCH v2 04/16] powerpc: Curb objtool unannotated intra-function warnings Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:26 ` Christophe Leroy [this message] 2022-08-30 6:26 ` Christophe Leroy 2022-08-29 5:52 ` [PATCH v2 05/16] powerpc: Skip objtool from running on drivers/crypto/vmx/aesp8-ppc.o Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:26 ` Christophe Leroy 2022-08-30 6:26 ` Christophe Leroy 2022-09-01 19:17 ` Peter Zijlstra 2022-09-01 19:17 ` Peter Zijlstra 2022-09-05 10:47 ` Naveen N. Rao 2022-09-05 10:47 ` Naveen N. Rao 2022-08-29 5:52 ` [PATCH v2 06/16] powerpc: Fix objtool unannotated intra-function call warnings on PPC32 Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-29 5:52 ` [PATCH v2 07/16] powerpc: Skip objtool from running on VDSO files Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:27 ` Christophe Leroy 2022-08-30 6:27 ` Christophe Leroy 2022-09-01 19:19 ` Peter Zijlstra 2022-09-01 19:19 ` Peter Zijlstra 2022-09-02 7:40 ` Michael Ellerman 2022-09-02 7:40 ` Michael Ellerman 2022-08-29 5:52 ` [PATCH v2 08/16] objtool: Fix SEGFAULT Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-09-01 19:20 ` Peter Zijlstra 2022-09-01 19:20 ` Peter Zijlstra 2022-09-02 8:06 ` Christophe Leroy 2022-09-02 8:06 ` Christophe Leroy 2022-09-02 8:42 ` Peter Zijlstra 2022-09-02 8:42 ` Peter Zijlstra 2022-08-29 5:52 ` [PATCH v2 09/16] objtool: Use target file endianness instead of a compiled constant Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-09-01 19:22 ` Peter Zijlstra 2022-09-01 19:22 ` Peter Zijlstra 2022-08-29 5:52 ` [PATCH v2 10/16] objtool: Use target file class size " Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-09-01 19:23 ` Peter Zijlstra 2022-09-01 19:23 ` Peter Zijlstra 2022-08-29 5:52 ` [PATCH v2 11/16] objtool: Add --mnop as an option to --mcount Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:28 ` Christophe Leroy 2022-08-30 6:28 ` Christophe Leroy 2022-09-01 19:25 ` Peter Zijlstra 2022-09-01 19:25 ` Peter Zijlstra 2022-09-05 10:55 ` Naveen N. Rao 2022-09-05 10:55 ` Naveen N. Rao 2022-08-29 5:52 ` [PATCH v2 12/16] objtool: Read special sections with alts only when specific options are selected Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:31 ` Christophe Leroy 2022-08-30 6:31 ` Christophe Leroy 2022-08-29 5:52 ` [PATCH v2 13/16] objtool: Use macros to define arch specific reloc types Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:33 ` Christophe Leroy 2022-08-30 6:33 ` Christophe Leroy 2022-09-01 19:28 ` Peter Zijlstra 2022-09-01 19:28 ` Peter Zijlstra 2022-08-29 5:52 ` [PATCH v2 14/16] objtool: Add arch specific function arch_ftrace_match() Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:36 ` Christophe Leroy 2022-08-30 6:36 ` Christophe Leroy 2022-08-29 5:52 ` [PATCH v2 15/16] objtool/powerpc: Enable objtool to be built on ppc Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:41 ` Christophe Leroy 2022-08-30 6:41 ` Christophe Leroy 2022-09-05 10:37 ` Naveen N. Rao 2022-09-05 10:37 ` Naveen N. Rao 2023-02-04 8:19 ` Randy Dunlap 2023-02-04 8:19 ` Randy Dunlap 2023-02-04 8:21 ` Randy Dunlap 2023-02-04 8:21 ` Randy Dunlap 2023-02-04 8:30 ` Randy Dunlap 2023-02-04 8:30 ` Randy Dunlap 2023-02-04 11:55 ` Christophe Leroy 2023-02-04 11:55 ` Christophe Leroy 2023-02-04 13:10 ` Christophe Leroy 2023-02-04 13:10 ` Christophe Leroy 2023-02-04 15:47 ` Josh Poimboeuf 2023-02-04 15:47 ` Josh Poimboeuf 2022-09-01 9:32 ` Christophe Leroy 2022-09-01 9:32 ` Christophe Leroy 2022-09-01 15:11 ` Segher Boessenkool 2022-09-01 15:11 ` Segher Boessenkool 2022-09-01 16:38 ` Christophe Leroy 2022-09-01 16:38 ` Christophe Leroy 2022-09-01 19:01 ` Peter Zijlstra 2022-09-01 19:01 ` Peter Zijlstra 2022-08-29 5:52 ` [PATCH v2 16/16] objtool/powerpc: Add --mcount specific implementation Sathvika Vasireddy 2022-08-29 5:52 ` Sathvika Vasireddy 2022-08-30 6:44 ` Christophe Leroy 2022-08-30 6:44 ` Christophe Leroy 2022-08-31 12:50 ` Christophe Leroy 2022-08-31 12:50 ` Christophe Leroy 2022-08-31 17:51 ` Segher Boessenkool 2022-08-31 17:51 ` Segher Boessenkool 2022-09-05 10:45 ` Naveen N. Rao 2022-09-05 10:45 ` Naveen N. Rao 2022-09-05 20:43 ` Segher Boessenkool 2022-09-05 20:43 ` Segher Boessenkool 2022-09-06 6:22 ` Christophe Leroy 2022-09-06 6:22 ` Christophe Leroy
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