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From: "tip-bot2 for Peter Zijlstra" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>,
	Borislav Petkov <bp@suse.de>,
	x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [tip: x86/asm] objtool: Fix STACK_FRAME_NON_STANDARD reloc type
Date: Fri, 06 May 2022 20:26:00 -0000	[thread overview]
Message-ID: <165186876093.4207.5445867612554580816.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20220506121631.508692613@infradead.org>

The following commit has been merged into the x86/asm branch of tip:

Commit-ID:     e2ef115813c34ea5380ac5b4879f515070150210
Gitweb:        https://git.kernel.org/tip/e2ef115813c34ea5380ac5b4879f515070150210
Author:        Peter Zijlstra <peterz@infradead.org>
AuthorDate:    Fri, 06 May 2022 14:14:37 +02:00
Committer:     Peter Zijlstra <peterz@infradead.org>
CommitterDate: Fri, 06 May 2022 22:20:43 +02:00

objtool: Fix STACK_FRAME_NON_STANDARD reloc type

STACK_FRAME_NON_STANDARD results in inconsistent relocation types
depending on .c or .S usage:

  Relocation section '.rela.discard.func_stack_frame_non_standard' at offset 0x3c01090 contains 5 entries:
  Offset             Info             Type               Symbol's Value  Symbol's Name + Addend
  0000000000000000  00020c2200000002 R_X86_64_PC32          0000000000047b40 do_suspend_lowlevel + 0
  0000000000000008  0002461e00000001 R_X86_64_64            00000000000480a0 machine_real_restart + 0
  0000000000000010  0000001400000001 R_X86_64_64            0000000000000000 .rodata + b3d4
  0000000000000018  0002444600000002 R_X86_64_PC32          00000000000678a0 __efi64_thunk + 0
  0000000000000020  0002659d00000001 R_X86_64_64            0000000000113160 __crash_kexec + 0

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220506121631.508692613@infradead.org
---
 include/linux/objtool.h       | 4 +++-
 tools/include/linux/objtool.h | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/include/linux/objtool.h b/include/linux/objtool.h
index 586d357..b9c1474 100644
--- a/include/linux/objtool.h
+++ b/include/linux/objtool.h
@@ -40,6 +40,8 @@ struct unwind_hint {
 
 #ifdef CONFIG_STACK_VALIDATION
 
+#include <asm/asm.h>
+
 #ifndef __ASSEMBLY__
 
 #define UNWIND_HINT(sp_reg, sp_offset, type, end)		\
@@ -137,7 +139,7 @@ struct unwind_hint {
 
 .macro STACK_FRAME_NON_STANDARD func:req
 	.pushsection .discard.func_stack_frame_non_standard, "aw"
-		.long \func - .
+	_ASM_PTR \func
 	.popsection
 .endm
 
diff --git a/tools/include/linux/objtool.h b/tools/include/linux/objtool.h
index 586d357..b9c1474 100644
--- a/tools/include/linux/objtool.h
+++ b/tools/include/linux/objtool.h
@@ -40,6 +40,8 @@ struct unwind_hint {
 
 #ifdef CONFIG_STACK_VALIDATION
 
+#include <asm/asm.h>
+
 #ifndef __ASSEMBLY__
 
 #define UNWIND_HINT(sp_reg, sp_offset, type, end)		\
@@ -137,7 +139,7 @@ struct unwind_hint {
 
 .macro STACK_FRAME_NON_STANDARD func:req
 	.pushsection .discard.func_stack_frame_non_standard, "aw"
-		.long \func - .
+	_ASM_PTR \func
 	.popsection
 .endm
 

      parent reply	other threads:[~2022-05-06 20:26 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-06 12:14 [PATCH 0/6] x86: Various cleanups and fixes Peter Zijlstra
2022-05-06 12:14 ` [PATCH 1/6] x86/mm: Simplify RESERVE_BRK() Peter Zijlstra
2022-05-06 15:09   ` [tip: x86/asm] " tip-bot2 for Josh Poimboeuf
2022-05-06 12:14 ` [PATCH 2/6] x86/entry: Simplify entry_INT80_compat() Peter Zijlstra
2022-05-06 15:09   ` [tip: x86/asm] " tip-bot2 for Linus Torvalds
2022-05-06 12:14 ` [PATCH 3/6] x86/entry: Use PUSH_AND_CLEAR_REGS for compat Peter Zijlstra
2022-05-06 15:09   ` [tip: x86/asm] " tip-bot2 for Peter Zijlstra
2022-05-07  2:54   ` [PATCH 3/6] " Lai Jiangshan
2022-05-19 16:24   ` Guenter Roeck
2022-05-19 17:00     ` Peter Zijlstra
2022-05-19 17:11       ` Josh Poimboeuf
2022-05-19 17:35         ` Josh Poimboeuf
2022-05-20  1:11           ` Lai Jiangshan
2022-05-20  2:46             ` Guenter Roeck
2022-05-20 15:55             ` Josh Poimboeuf
2022-05-06 12:14 ` [PATCH 4/6] x86/entry: Remove skip_r11rcx Peter Zijlstra
2022-05-06 15:09   ` [tip: x86/asm] " tip-bot2 for Peter Zijlstra
2022-05-07  2:52   ` [PATCH 4/6] " Lai Jiangshan
2022-05-06 12:14 ` [PATCH 5/6] linkage: Fix issue with missing symbol size Peter Zijlstra
2022-05-06 15:08   ` [tip: x86/asm] " tip-bot2 for Peter Zijlstra
2022-05-06 12:14 ` [PATCH 6/6] objtool: Fix STACK_FRAME_NON_STANDARD reloc type Peter Zijlstra
2022-05-06 15:08   ` [tip: x86/asm] " tip-bot2 for Peter Zijlstra
2022-05-06 16:05   ` [PATCH 6/6] " Josh Poimboeuf
2022-05-06 20:26   ` tip-bot2 for Peter Zijlstra [this message]

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