From: Jan Beulich Date: Wed, 30 Jan 2008 12:31:24 +0000 (+0100) Subject: x86: also define AT_VECTOR_SIZE_ARCH X-Git-Tag: v2.6.25-rc1~1143^2~560 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ded9aa0db815b4e1271001561e177755cb8b9468;p=linux-2.6 x86: also define AT_VECTOR_SIZE_ARCH The patch introducing this left out x86-64, despite it also having extra entries. [ mingo@elte.hu: re-merged this to after the unification patches. ] Signed-off-by: Jan Beulich Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- diff --git a/include/asm-x86/system.h b/include/asm-x86/system.h index 8a37dad38b..6c7d1fda49 100644 --- a/include/asm-x86/system.h +++ b/include/asm-x86/system.h @@ -9,8 +9,14 @@ #include #include +/* entries in ARCH_DLINFO: */ +#ifdef CONFIG_IA32_EMULATION +# define AT_VECTOR_SIZE_ARCH 2 +#else +# define AT_VECTOR_SIZE_ARCH 1 +#endif + #ifdef CONFIG_X86_32 -#define AT_VECTOR_SIZE_ARCH 2 /* entries in ARCH_DLINFO */ struct task_struct; /* one of the stranger aspects of C forward declarations */ extern struct task_struct *FASTCALL(__switch_to(struct task_struct *prev, @@ -56,7 +62,7 @@ extern struct task_struct *FASTCALL(__switch_to(struct task_struct *prev, /* Save restore flags to clear handle leaking NT */ #define switch_to(prev, next, last) \ - asm volatile(SAVE_CONTEXT \ + asm volatile(SAVE_CONTEXT \ "movq %%rsp,%P[threadrsp](%[prev])\n\t" /* save RSP */ \ "movq %P[threadrsp](%[next]),%%rsp\n\t" /* restore RSP */ \ "call __switch_to\n\t" \