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| author | Andy Lutomirski <luto@mit.edu> | 2011-06-05 17:50:22 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-06-06 07:43:14 (GMT) |
| commit | bb5fe2f78eadf5a52d8dcbf9a57728fd107af97b (patch) | |
| tree | ed6d87558e2b9610efa45330a0083b7cc3993d1a | |
| parent | d319bb79afa4039bda6f85661d6bf0c13299ce93 (diff) | |
| download | linux-bb5fe2f78eadf5a52d8dcbf9a57728fd107af97b.tar.xz | |
x86-64: Remove vsyscall number 3 (venosys)
It just segfaults since April 2008 (a4928cff), so I'm pretty
sure that nothing uses it. And having an empty section makes
the linker script a bit fragile.
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Cc: Jesper Juhl <jj@chaosbits.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: richard -rw- weinberger <richard.weinberger@gmail.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Louis Rilling <Louis.Rilling@kerlabs.com>
Cc: Valdis.Kletnieks@vt.edu
Cc: pageexec@freemail.hu
Link: http://lkml.kernel.org/r/4a4abcf47ecadc269f2391a313576fe6d06acef7.1307292171.git.luto@mit.edu
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/kernel/vmlinux.lds.S | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/vsyscall_64.c | 5 |
2 files changed, 0 insertions, 9 deletions
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 98b378d..4f90082 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -182,10 +182,6 @@ SECTIONS *(.vsyscall_2) } - .vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) { - *(.vsyscall_3) - } - . = ALIGN(__vsyscall_0 + PAGE_SIZE, PAGE_SIZE); #undef VSYSCALL_ADDR diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c index 9b2f3f5..70a5f6e 100644 --- a/arch/x86/kernel/vsyscall_64.c +++ b/arch/x86/kernel/vsyscall_64.c @@ -209,11 +209,6 @@ vgetcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache) return 0; } -static long __vsyscall(3) venosys_1(void) -{ - return -ENOSYS; -} - /* Assume __initcall executes before all user space. Hopefully kmod doesn't violate that. We'll find out if it does. */ static void __cpuinit vsyscall_set_cpu(int cpu) |