From c97db4a0a7d4d5be8c64a8d649a4425ee195b05c Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 16 Apr 2005 15:24:48 -0700 Subject: [PATCH] i386 vDSO: add PT_NOTE segment This patch adds an ELF note to the vDSO giving the LINUX_VERSION_CODE value. Having this in the vDSO lets the dynamic linker avoid the `uname' syscall it now always does at startup to ascertain the kernel ABI available. Signed-off-by: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/vsyscall.lds.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/i386/kernel/vsyscall.lds.S') diff --git a/arch/i386/kernel/vsyscall.lds.S b/arch/i386/kernel/vsyscall.lds.S index 3a8329d6536e..a7977707c8e5 100644 --- a/arch/i386/kernel/vsyscall.lds.S +++ b/arch/i386/kernel/vsyscall.lds.S @@ -23,7 +23,7 @@ SECTIONS . = VSYSCALL_BASE + 0x400; .text : { *(.text) } :text =0x90909090 - + .note : { *(.note.*) } :text :note .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr .eh_frame : { KEEP (*(.eh_frame)) } :text .dynamic : { *(.dynamic) } :text :dynamic @@ -43,6 +43,7 @@ PHDRS { text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ + note PT_NOTE FLAGS(4); /* PF_R */ eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */ } -- cgit v1.2.3