Date: Fri, 22 Jun 2012 07:16:30 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r237435 - in head/sys/i386: i386 include Message-ID: <201206220716.q5M7GUCQ063278@svn.freebsd.org>
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Author: kib Date: Fri Jun 22 07:16:29 2012 New Revision: 237435 URL: http://svn.freebsd.org/changeset/base/237435 Log: Enable shared page on i386, now it has a use for vdso_timehands. MFC after: 1 month Modified: head/sys/i386/i386/elf_machdep.c head/sys/i386/include/vmparam.h Modified: head/sys/i386/i386/elf_machdep.c ============================================================================== --- head/sys/i386/i386/elf_machdep.c Fri Jun 22 07:13:30 2012 (r237434) +++ head/sys/i386/i386/elf_machdep.c Fri Jun 22 07:16:29 2012 (r237435) @@ -74,12 +74,15 @@ struct sysentvec elf32_freebsd_sysvec = .sv_setregs = exec_setregs, .sv_fixlimit = NULL, .sv_maxssiz = NULL, - .sv_flags = SV_ABI_FREEBSD | SV_IA32 | SV_ILP32, + .sv_flags = SV_ABI_FREEBSD | SV_IA32 | SV_ILP32 | SV_SHP, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, + .sv_shared_page_base = SHAREDPAGE, + .sv_shared_page_len = PAGE_SIZE, .sv_schedtail = NULL, }; +INIT_SYSENTVEC(elf32_sysvec, &elf32_freebsd_sysvec); static Elf32_Brandinfo freebsd_brand_info = { .brand = ELFOSABI_FREEBSD, Modified: head/sys/i386/include/vmparam.h ============================================================================== --- head/sys/i386/include/vmparam.h Fri Jun 22 07:13:30 2012 (r237434) +++ head/sys/i386/include/vmparam.h Fri Jun 22 07:16:29 2012 (r237435) @@ -165,7 +165,8 @@ #define VM_MAXUSER_ADDRESS VADDR(PTDPTDI, 0) -#define USRSTACK VM_MAXUSER_ADDRESS +#define SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) +#define USRSTACK SHAREDPAGE #define VM_MAX_ADDRESS VADDR(PTDPTDI, PTDPTDI) #define VM_MIN_ADDRESS ((vm_offset_t)0)
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