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From: Brian Gerst <brgerst@gmail.com>
To: x86@kernel.org, linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>, "H. Peter Anvin" <hpa@zytor.com>,
	Denys Vlasenko <dvlasenk@redhat.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: [PATCH 2/7] x86/vdso32: Remove VDSO32_vsyscall_eh_frame_size
Date: Sat, 29 Aug 2015 11:20:21 -0400	[thread overview]
Message-ID: <1440861626-27008-3-git-send-email-brgerst@gmail.com> (raw)
In-Reply-To: <1440861626-27008-1-git-send-email-brgerst@gmail.com>

This symbol and the padding are unnecessary since we no longer rely
on the symbols being exactly the same in each variant of the vdso32.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
---
 arch/x86/entry/vdso/vdso32/int80.S    | 8 --------
 arch/x86/entry/vdso/vdso32/syscall.S  | 8 --------
 arch/x86/entry/vdso/vdso32/sysenter.S | 6 ------
 3 files changed, 22 deletions(-)

diff --git a/arch/x86/entry/vdso/vdso32/int80.S b/arch/x86/entry/vdso/vdso32/int80.S
index e40af1c..667b25e 100644
--- a/arch/x86/entry/vdso/vdso32/int80.S
+++ b/arch/x86/entry/vdso/vdso32/int80.S
@@ -43,11 +43,3 @@ __kernel_vsyscall:
 	.align 4
 .LENDFDEDLSI:
 	.previous
-
-	/*
-	 * Pad out the segment to match the size of the sysenter.S version.
-	 */
-VDSO32_vsyscall_eh_frame_size = 0x40
-	.section .data,"aw",@progbits
-	.space VDSO32_vsyscall_eh_frame_size-(.LENDFDEDLSI-.LSTARTFRAMEDLSI), 0
-	.previous
diff --git a/arch/x86/entry/vdso/vdso32/syscall.S b/arch/x86/entry/vdso/vdso32/syscall.S
index 75545ec..73f1428 100644
--- a/arch/x86/entry/vdso/vdso32/syscall.S
+++ b/arch/x86/entry/vdso/vdso32/syscall.S
@@ -60,11 +60,3 @@ __kernel_vsyscall:
 	.align 4
 .LENDFDE1:
 	.previous
-
-	/*
-	 * Pad out the segment to match the size of the sysenter.S version.
-	 */
-VDSO32_vsyscall_eh_frame_size = 0x40
-	.section .data,"aw",@progbits
-	.space VDSO32_vsyscall_eh_frame_size-(.LENDFDE1-.LSTARTFRAME), 0
-	.previous
diff --git a/arch/x86/entry/vdso/vdso32/sysenter.S b/arch/x86/entry/vdso/vdso32/sysenter.S
index e99c7699..e8e3080 100644
--- a/arch/x86/entry/vdso/vdso32/sysenter.S
+++ b/arch/x86/entry/vdso/vdso32/sysenter.S
@@ -105,9 +105,3 @@ VDSO32_SYSENTER_RETURN:	/* Symbol used by sysenter.c via vdso32-syms.h */
 	.align 4
 .LENDFDEDLSI:
 	.previous
-
-	/*
-	 * Emit a symbol with the size of this .eh_frame data,
-	 * to verify it matches the other versions.
-	 */
-VDSO32_vsyscall_eh_frame_size = (.LENDFDEDLSI-.LSTARTFRAMEDLSI)
-- 
2.4.3


  parent reply	other threads:[~2015-08-29 15:20 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-29 15:20 [PATCH 0/7] x86 vdso32 cleanups Brian Gerst
2015-08-29 15:20 ` [PATCH 1/7] x86/vdso32: Separate sigreturn code Brian Gerst
2015-08-29 15:20 ` Brian Gerst [this message]
2015-08-29 15:20 ` [PATCH 3/7] x86/vdso32: Remove unused vdso-fakesections.c Brian Gerst
2015-08-30 16:47   ` Andy Lutomirski
2015-08-29 15:20 ` [PATCH 4/7] x86/vdso32: Build single vdso32 image Brian Gerst
2015-08-29 15:20 ` [PATCH 5/7] x86/vdso: Merge 32-bit and 64-bit source files Brian Gerst
2015-08-29 15:20 ` [PATCH 6/7] x86/vdso32/xen: Move VDSO_NOTE_NONEGSEG_BIT define Brian Gerst
2015-08-29 15:20 ` [PATCH 7/7] x86/vdso32: Remove vdso32 subdirectory Brian Gerst
2015-08-29 16:10 ` [PATCH 0/7] x86 vdso32 cleanups Andy Lutomirski
2015-08-30 21:18   ` Brian Gerst
2015-08-31  2:52     ` Andy Lutomirski
     [not found]       ` <CALCETrVdaDuSuLLByWbFsEei6LYaxZK6qFtJAHZhRu3ZqUc+RQ@mail.gmail.com>
2015-09-01  1:37         ` Andy Lutomirski
2015-09-01 21:50           ` Andy Lutomirski

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