linux-kernel - [PATCH 09/18] x86 vDSO: absolute relocs

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Message-Id: <20071119220551.3470226F8BE@magilla.localdomain>
Date:	Mon, 19 Nov 2007 14:05:51 -0800 (PST)
From:	Roland McGrath <roland@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 09/18] x86 vDSO: absolute relocs


This updates the exceptions for absolute relocs for the new symbol name
convention used for symbols extracted from the vDSO images.

Signed-off-by: Roland McGrath <roland@...hat.com>
---
 arch/x86/boot/compressed/relocs.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
index 7a0d00b..d01ea42 100644
--- a/arch/x86/boot/compressed/relocs.c
+++ b/arch/x86/boot/compressed/relocs.c
@@ -27,11 +27,6 @@ static unsigned long *relocs;
  * absolute relocations present w.r.t these symbols.
  */
 static const char* safe_abs_relocs[] = {
-		"__kernel_vsyscall",
-		"__kernel_rt_sigreturn",
-		"__kernel_sigreturn",
-		"SYSENTER_RETURN",
-		"VDSO_NOTE_MASK",
 		"xen_irq_disable_direct_reloc",
 		"xen_save_fl_direct_reloc",
 };
@@ -45,6 +40,8 @@ static int is_safe_abs_reloc(const char* sym_name)
 			/* Match found */
 			return 1;
 	}
+	if (strncmp(sym_name, "VDSO", 4) == 0)
+		return 1;
 	if (strncmp(sym_name, "__crc_", 6) == 0)
 		return 1;
 	return 0;
-
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