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authorKaz Kojima <kkojima@rr.iij4u.or.jp>2007-11-02 12:29:37 +0900
committerPaul Mundt <lethal@linux-sh.org>2007-11-02 12:29:37 +0900
commitf38c5a696a1e775c70d8764b1b9c1a4e267448d3 (patch)
tree45d25babb1ce72b04d65b705c5d23d295b26eb7a
parent236b1957447018d53cfd24ec774995c44e18998d (diff)
sh: Terminate .eh_frame in VDSO with a 4-byte 0.
It's assumed that .eh_frame is terminated with 4-byte 0 in shared libraries and executable. It seems to be the case for VDSOs too. Without this terminator, I saw failures when unwinding from VDSO, though I don't know how other architectures handle this issue. For the normal libs, crtendS.o gives this terminator. We can use such terminating objects. Or we can add a 4-byte 0 with modifying the linker script like as the patch below. Signed-off-by: Kaz Kojima <kkojima@rr.iij4u.or.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
-rw-r--r--arch/sh/kernel/vsyscall/vsyscall.lds.S5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/sh/kernel/vsyscall/vsyscall.lds.S b/arch/sh/kernel/vsyscall/vsyscall.lds.S
index c9bf2af35d3..6d59ee7c23d 100644
--- a/arch/sh/kernel/vsyscall/vsyscall.lds.S
+++ b/arch/sh/kernel/vsyscall/vsyscall.lds.S
@@ -38,7 +38,10 @@ SECTIONS
.text : { *(.text) } :text =0x90909090
.note : { *(.note.*) } :text :note
.eh_frame_hdr : { *(.eh_frame_hdr ) } :text :eh_frame_hdr
- .eh_frame : { KEEP (*(.eh_frame)) } :text
+ .eh_frame : {
+ KEEP (*(.eh_frame))
+ LONG (0)
+ } :text
.dynamic : { *(.dynamic) } :text :dynamic
.useless : {
*(.got.plt) *(.got)