diff options
38 files changed, 20 insertions, 6323 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 2d7f56a98e0f..9a50d7dd2a0b 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -499,23 +499,6 @@ config ARCH_PROC_KCORE_TEXT def_bool y depends on PROC_KCORE -config IA32_SUPPORT - bool "Support for Linux/x86 binaries" - help - IA-64 processors can execute IA-32 (X86) instructions. By - saying Y here, the kernel will include IA-32 system call - emulation support which makes it possible to transparently - run IA-32 Linux binaries on an IA-64 Linux system. - If in doubt, say Y. - -config COMPAT - bool - depends on IA32_SUPPORT - default y - -config COMPAT_FOR_U64_ALIGNMENT - def_bool COMPAT - config IA64_MCA_RECOVERY tristate "MCA recovery from errors other than TLB." diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index 475e2725fbde..8ae0d2604ce1 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -46,7 +46,6 @@ head-y := arch/ia64/kernel/head.o arch/ia64/kernel/init_task.o libs-y += arch/ia64/lib/ core-y += arch/ia64/kernel/ arch/ia64/mm/ -core-$(CONFIG_IA32_SUPPORT) += arch/ia64/ia32/ core-$(CONFIG_IA64_DIG) += arch/ia64/dig/ core-$(CONFIG_IA64_DIG_VTD) += arch/ia64/dig/ core-$(CONFIG_IA64_GENERIC) += arch/ia64/dig/ diff --git a/arch/ia64/configs/bigsur_defconfig b/arch/ia64/configs/bigsur_defconfig index ace41096b47b..312b12094a1d 100644 --- a/arch/ia64/configs/bigsur_defconfig +++ b/arch/ia64/configs/bigsur_defconfig @@ -131,8 +131,6 @@ CONFIG_ARCH_DISCONTIGMEM_ENABLE=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_ENABLE=y # CONFIG_VIRTUAL_MEM_MAP is not set -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y # CONFIG_IA64_MCA_RECOVERY is not set CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig index 75645495c2dd..6a4cc506fb5f 100644 --- a/arch/ia64/configs/generic_defconfig +++ b/arch/ia64/configs/generic_defconfig @@ -205,8 +205,6 @@ CONFIG_VIRTUAL_MEM_MAP=y CONFIG_HOLES_IN_ZONE=y CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y CONFIG_HAVE_ARCH_NODEDATA_EXTENSION=y -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y CONFIG_COMPAT_FOR_U64_ALIGNMENT=y CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig index e86fbd39c795..2dc185b0f9a3 100644 --- a/arch/ia64/configs/gensparse_defconfig +++ b/arch/ia64/configs/gensparse_defconfig @@ -139,8 +139,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y CONFIG_NUMA=y CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/configs/sim_defconfig b/arch/ia64/configs/sim_defconfig index 546a772f438e..21a23cdfd41c 100644 --- a/arch/ia64/configs/sim_defconfig +++ b/arch/ia64/configs/sim_defconfig @@ -130,8 +130,6 @@ CONFIG_ARCH_DISCONTIGMEM_ENABLE=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_ENABLE=y # CONFIG_VIRTUAL_MEM_MAP is not set -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y # CONFIG_IA64_MCA_RECOVERY is not set # CONFIG_PERFMON is not set CONFIG_IA64_PALINFO=m diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig index c522edf23c62..c5a5ea9d54ae 100644 --- a/arch/ia64/configs/tiger_defconfig +++ b/arch/ia64/configs/tiger_defconfig @@ -154,7 +154,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_VIRTUAL_MEM_MAP=y CONFIG_HOLES_IN_ZONE=y -# CONFIG_IA32_SUPPORT is not set CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/configs/xen_domu_defconfig b/arch/ia64/configs/xen_domu_defconfig index 0bb0714dc19d..c67eafc4bb38 100644 --- a/arch/ia64/configs/xen_domu_defconfig +++ b/arch/ia64/configs/xen_domu_defconfig @@ -200,8 +200,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_VIRTUAL_MEM_MAP=y CONFIG_HOLES_IN_ZONE=y -# CONFIG_IA32_SUPPORT is not set -# CONFIG_COMPAT_FOR_U64_ALIGNMENT is not set CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/configs/zx1_defconfig b/arch/ia64/configs/zx1_defconfig index 514f0635dafe..3cec65b534c2 100644 --- a/arch/ia64/configs/zx1_defconfig +++ b/arch/ia64/configs/zx1_defconfig @@ -150,8 +150,6 @@ CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_VIRTUAL_MEM_MAP=y CONFIG_HOLES_IN_ZONE=y -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y diff --git a/arch/ia64/ia32/Makefile b/arch/ia64/ia32/Makefile deleted file mode 100644 index baad8c7699c0..000000000000 --- a/arch/ia64/ia32/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# -# Makefile for the ia32 kernel emulation subsystem. -# - -obj-y := ia32_entry.o sys_ia32.o ia32_signal.o \ - ia32_support.o ia32_traps.o binfmt_elf32.o ia32_ldt.o -obj-$(CONFIG_AUDIT) += audit.o - -# Don't let GCC uses f16-f31 so that save_ia32_fpstate_live() and -# restore_ia32_fpstate_live() can be sure the live register contain user-level state. -CFLAGS_ia32_signal.o += -mfixed-range=f16-f31 diff --git a/arch/ia64/ia32/audit.c b/arch/ia64/ia32/audit.c deleted file mode 100644 index 5c93ddd1e42d..000000000000 --- a/arch/ia64/ia32/audit.c +++ /dev/null @@ -1,42 +0,0 @@ -#include "../../x86/include/asm/unistd_32.h" - -unsigned ia32_dir_class[] = { -#include <asm-generic/audit_dir_write.h> -~0U -}; - -unsigned ia32_chattr_class[] = { -#include <asm-generic/audit_change_attr.h> -~0U -}; - -unsigned ia32_write_class[] = { -#include <asm-generic/audit_write.h> -~0U -}; - -unsigned ia32_read_class[] = { -#include <asm-generic/audit_read.h> -~0U -}; - -unsigned ia32_signal_class[] = { -#include <asm-generic/audit_signal.h> -~0U -}; - -int ia32_classify_syscall(unsigned syscall) -{ - switch(syscall) { - case __NR_open: - return 2; - case __NR_openat: - return 3; - case __NR_socketcall: - return 4; - case __NR_execve: - return 5; - default: - return 1; - } -} diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c deleted file mode 100644 index c69552bf893e..000000000000 --- a/arch/ia64/ia32/binfmt_elf32.c +++ /dev/null @@ -1,245 +0,0 @@ -/* - * IA-32 ELF support. - * - * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com> - * Copyright (C) 2001 Hewlett-Packard Co - * David Mosberger-Tang <davidm@hpl.hp.com> - * - * 06/16/00 A. Mallick initialize csd/ssd/tssd/cflg for ia32_load_state - * 04/13/01 D. Mosberger dropped saving tssd in ar.k1---it's not needed - * 09/14/01 D. Mosberger fixed memory management for gdt/tss page - */ - -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/security.h> - -#include <asm/param.h> -#include <asm/signal.h> - -#include "ia32priv.h" -#include "elfcore32.h" - -/* Override some function names */ -#undef start_thread -#define start_thread ia32_start_thread -#define elf_format elf32_format -#define init_elf_binfmt init_elf32_binfmt -#define exit_elf_binfmt exit_elf32_binfmt - -#undef CLOCKS_PER_SEC -#define CLOCKS_PER_SEC IA32_CLOCKS_PER_SEC - -extern void ia64_elf32_init (struct pt_regs *regs); - -static void elf32_set_personality (void); - -static unsigned long __attribute ((unused)) -randomize_stack_top(unsigned long stack_top); - -#define setup_arg_pages(bprm,tos,exec) ia32_setup_arg_pages(bprm,exec) -#define elf_map elf32_map - -#undef SET_PERSONALITY -#define SET_PERSONALITY(ex) elf32_set_personality() - -#define elf_read_implies_exec(ex, have_pt_gnu_stack) (!(have_pt_gnu_stack)) - -/* Ugly but avoids duplication */ -#include "../../../fs/binfmt_elf.c" - -extern struct page *ia32_shared_page[]; -extern unsigned long *ia32_gdt; -extern struct page *ia32_gate_page; - -int -ia32_install_shared_page (struct vm_area_struct *vma, struct vm_fault *vmf) -{ - vmf->page = ia32_shared_page[smp_processor_id()]; - get_page(vmf->page); - return 0; -} - -int -ia32_install_gate_page (struct vm_area_struct *vma, struct vm_fault *vmf) -{ - vmf->page = ia32_gate_page; - get_page(vmf->page); - return 0; -} - - -static const struct vm_operations_struct ia32_shared_page_vm_ops = { - .fault = ia32_install_shared_page -}; - -static const struct vm_operations_struct ia32_gate_page_vm_ops = { - .fault = ia32_install_gate_page -}; - -void -ia64_elf32_init (struct pt_regs *regs) -{ - struct vm_area_struct *vma; - - /* - * Map GDT below 4GB, where the processor can find it. We need to map - * it with privilege level 3 because the IVE uses non-privileged accesses to these - * tables. IA-32 segmentation is used to protect against IA-32 accesses to them. - */ - vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (vma) { - vma->vm_mm = current->mm; - vma->vm_start = IA32_GDT_OFFSET; - vma->vm_end = vma->vm_start + PAGE_SIZE; - vma->vm_page_prot = PAGE_SHARED; - vma->vm_flags = VM_READ|VM_MAYREAD|VM_RESERVED; - vma->vm_ops = &ia32_shared_page_vm_ops; - down_write(¤t->mm->mmap_sem); - { - if (insert_vm_struct(current->mm, vma)) { - kmem_cache_free(vm_area_cachep, vma); - up_write(¤t->mm->mmap_sem); - BUG(); - } - } - up_write(¤t->mm->mmap_sem); - } - - /* - * When user stack is not executable, push sigreturn code to stack makes - * segmentation fault raised when returning to kernel. So now sigreturn - * code is locked in specific gate page, which is pointed by pretcode - * when setup_frame_ia32 - */ - vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (vma) { - vma->vm_mm = current->mm; - vma->vm_start = IA32_GATE_OFFSET; - vma->vm_end = vma->vm_start + PAGE_SIZE; - vma->vm_page_prot = PAGE_COPY_EXEC; - vma->vm_flags = VM_READ | VM_MAYREAD | VM_EXEC - | VM_MAYEXEC | VM_RESERVED; - vma->vm_ops = &ia32_gate_page_vm_ops; - down_write(¤t->mm->mmap_sem); - { - if (insert_vm_struct(current->mm, vma)) { - kmem_cache_free(vm_area_cachep, vma); - up_write(¤t->mm->mmap_sem); - BUG(); - } - } - up_write(¤t->mm->mmap_sem); - } - - /* - * Install LDT as anonymous memory. This gives us all-zero segment descriptors - * until a task modifies them via modify_ldt(). - */ - vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (vma) { - vma->vm_mm = current->mm; - vma->vm_start = IA32_LDT_OFFSET; - vma->vm_end = vma->vm_start + PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE); - vma->vm_page_prot = PAGE_SHARED; - vma->vm_flags = VM_READ|VM_WRITE|VM_MAYREAD|VM_MAYWRITE; - down_write(¤t->mm->mmap_sem); - { - if (insert_vm_struct(current->mm, vma)) { - kmem_cache_free(vm_area_cachep, vma); - up_write(¤t->mm->mmap_sem); - BUG(); - } - } - up_write(¤t->mm->mmap_sem); - } - - ia64_psr(regs)->ac = 0; /* turn off alignment checking */ - regs->loadrs = 0; - /* - * According to the ABI %edx points to an `atexit' handler. Since we don't have - * one we'll set it to 0 and initialize all the other registers just to make - * things more deterministic, ala the i386 implementation. - */ - regs->r8 = 0; /* %eax */ - regs->r11 = 0; /* %ebx */ - regs->r9 = 0; /* %ecx */ - regs->r10 = 0; /* %edx */ - regs->r13 = 0; /* %ebp */ - regs->r14 = 0; /* %esi */ - regs->r15 = 0; /* %edi */ - - current->thread.eflag = IA32_EFLAG; - current->thread.fsr = IA32_FSR_DEFAULT; - current->thread.fcr = IA32_FCR_DEFAULT; - current->thread.fir = 0; - current->thread.fdr = 0; - - /* - * Setup GDTD. Note: GDTD is the descrambled version of the pseudo-descriptor - * format defined by Figure 3-11 "Pseudo-Descriptor Format" in the IA-32 - * architecture manual. Also note that the only fields that are not ignored are - * `base', `limit', 'G', `P' (must be 1) and `S' (must be 0). - */ - regs->r31 = IA32_SEG_UNSCRAMBLE(IA32_SEG_DESCRIPTOR(IA32_GDT_OFFSET, IA32_PAGE_SIZE - 1, - 0, 0, 0, 1, 0, 0, 0)); - /* Setup the segment selectors */ - regs->r16 = (__USER_DS << 16) | __USER_DS; /* ES == DS, GS, FS are zero */ - regs->r17 = (__USER_DS << 16) | __USER_CS; /* SS, CS; ia32_load_state() sets TSS and LDT */ - - ia32_load_segment_descriptors(current); - ia32_load_state(current); -} - -/* - * Undo the override of setup_arg_pages() without this ia32_setup_arg_pages() - * will suffer infinite self recursion. - */ -#undef setup_arg_pages - -int -ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack) -{ - int ret; - - ret = setup_arg_pages(bprm, IA32_STACK_TOP, executable_stack); - if (!ret) { - /* - * Can't do it in ia64_elf32_init(). Needs to be done before - * calls to elf32_map() - */ - current->thread.ppl = ia32_init_pp_list(); - } - - return ret; -} - -static void -elf32_set_personality (void) -{ - set_personality(PER_LINUX32); - current->thread.map_base = IA32_PAGE_OFFSET/3; -} - -static unsigned long -elf32_map(struct file *filep, unsigned long addr, struct elf_phdr *eppnt, - int prot, int type, unsigned long unused) -{ - unsigned long pgoff = (eppnt->p_vaddr) & ~IA32_PAGE_MASK; - - return ia32_do_mmap(filep, (addr & IA32_PAGE_MASK), eppnt->p_filesz + pgoff, prot, type, - eppnt->p_offset - pgoff); -} - -#define cpu_uses_ia32el() (local_cpu_data->family > 0x1f) - -static int __init check_elf32_binfmt(void) -{ - if (cpu_uses_ia32el()) { - printk("Please use IA-32 EL for executing IA-32 binaries\n"); - unregister_binfmt(&elf_format); - } - return 0; -} - -module_init(check_elf32_binfmt) diff --git a/arch/ia64/ia32/elfcore32.h b/arch/ia64/ia32/elfcore32.h deleted file mode 100644 index 657725742617..000000000000 --- a/arch/ia64/ia32/elfcore32.h +++ /dev/null @@ -1,148 +0,0 @@ -/* - * IA-32 ELF core dump support. - * - * Copyright (C) 2003 Arun Sharma <arun.sharma@intel.com> - * - * Derived from the x86_64 version - */ -#ifndef _ELFCORE32_H_ -#define _ELFCORE32_H_ - -#include <asm/intrinsics.h> -#include <asm/uaccess.h> - -/* Override elfcore.h */ -#define _LINUX_ELFCORE_H 1 -typedef unsigned int elf_greg_t; - -#define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t)) -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -typedef struct ia32_user_i387_struct elf_fpregset_t; -typedef struct ia32_user_fxsr_struct elf_fpxregset_t; - -struct elf_siginfo -{ - int si_signo; /* signal number */ - int si_code; /* extra code */ - int si_errno; /* errno */ -}; - -#ifdef CONFIG_VIRT_CPU_ACCOUNTING -/* - * Hacks are here since types between compat_timeval (= pair of s32) and - * ia64-native timeval (= pair of s64) are not compatible, at least a file - * arch/ia64/ia32/../../../fs/binfmt_elf.c will get warnings from compiler on - * use of cputime_to_timeval(), which usually an alias of jiffies_to_timeval(). - */ -#define cputime_to_timeval(a,b) \ - do { (b)->tv_usec = 0; (b)->tv_sec = (a)/NSEC_PER_SEC; } while(0) -#else -#define jiffies_to_timeval(a,b) \ - do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; } while(0) -#endif - -struct elf_prstatus -{ - struct elf_siginfo pr_info; /* Info associated with signal */ - short pr_cursig; /* Current signal */ - unsigned int pr_sigpend; /* Set of pending signals */ - unsigned int pr_sighold; /* Set of held signals */ - pid_t pr_pid; - pid_t pr_ppid; - pid_t pr_pgrp; - pid_t pr_sid; - struct compat_timeval pr_utime; /* User time */ - struct compat_timeval pr_stime; /* System time */ - struct compat_timeval pr_cutime; /* Cumulative user time */ - struct compat_timeval pr_cstime; /* Cumulative system time */ - elf_gregset_t pr_reg; /* GP registers */ - int pr_fpvalid; /* True if math co-processor being used. */ -}; - -#define ELF_PRARGSZ (80) /* Number of chars for args */ - -struct elf_prpsinfo -{ - char pr_state; /* numeric process state */ - char pr_sname; /* char for pr_state */ - char pr_zomb; /* zombie */ - char pr_nice; /* nice val */ - unsigned int pr_flag; /* flags */ - __u16 pr_uid; - __u16 pr_gid; - pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; - /* Lots missing */ - char pr_fname[16]; /* filename of executable */ - char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ -}; - -#define ELF_CORE_COPY_REGS(pr_reg, regs) \ - pr_reg[0] = regs->r11; \ - pr_reg[1] = regs->r9; \ - pr_reg[2] = regs->r10; \ - pr_reg[3] = regs->r14; \ - pr_reg[4] = regs->r15; \ - pr_reg[5] = regs->r13; \ - pr_reg[6] = regs->r8; \ - pr_reg[7] = regs->r16 & 0xffff; \ - pr_reg[8] = (regs->r16 >> 16) & 0xffff; \ - pr_reg[9] = (regs->r16 >> 32) & 0xffff; \ - pr_reg[10] = (regs->r16 >> 48) & 0xffff; \ - pr_reg[11] = regs->r1; \ - pr_reg[12] = regs->cr_iip; \ - pr_reg[13] = regs->r17 & 0xffff; \ - pr_reg[14] = ia64_getreg(_IA64_REG_AR_EFLAG); \ - pr_reg[15] = regs->r12; \ - pr_reg[16] = (regs->r17 >> 16) & 0xffff; - -static inline void elf_core_copy_regs(elf_gregset_t *elfregs, - struct pt_regs *regs) -{ - ELF_CORE_COPY_REGS((*elfregs), regs) -} - -static inline int elf_core_copy_task_regs(struct task_struct *t, - elf_gregset_t* elfregs) -{ - ELF_CORE_COPY_REGS((*elfregs), task_pt_regs(t)); - return 1; -} - -static inline int -elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu) -{ - struct ia32_user_i387_struct *fpstate = (void*)fpu; - mm_segment_t old_fs; - - if (!tsk_used_math(tsk)) - return 0; - - old_fs = get_fs(); - set_fs(KERNEL_DS); - save_ia32_fpstate(tsk, (struct ia32_user_i387_struct __user *) fpstate); - set_fs(old_fs); - - return 1; -} - -#define ELF_CORE_COPY_XFPREGS 1 -#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG -static inline int -elf_core_copy_task_xfpregs(struct task_struct *tsk, elf_fpxregset_t *xfpu) -{ - struct ia32_user_fxsr_struct *fpxstate = (void*) xfpu; - mm_segment_t old_fs; - - if (!tsk_used_math(tsk)) - return 0; - - old_fs = get_fs(); - set_fs(KERNEL_DS); - save_ia32_fpxstate(tsk, (struct ia32_user_fxsr_struct __user *) fpxstate); - set_fs(old_fs); - - return 1; -} - -#endif /* _ELFCORE32_H_ */ diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S deleted file mode 100644 index 2fd7479aa216..000000000000 --- a/arch/ia64/ia32/ia32_entry.S +++ /dev/null @@ -1,468 +0,0 @@ -#include <asm/asmmacro.h> -#include <asm/ia32.h> -#include <asm/asm-offsets.h> -#include <asm/signal.h> -#include <asm/thread_info.h> - -#include "../kernel/minstate.h" - - /* - * execve() is special because in case of success, we need to - * setup a null register window frame (in case an IA-32 process - * is exec'ing an IA-64 program). - */ -ENTRY(ia32_execve) - .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(3) - alloc loc1=ar.pfs,3,2,4,0 - mov loc0=rp - .body - zxt4 out0=in0 // filename - ;; // stop bit between alloc and call - zxt4 out1=in1 // argv - zxt4 out2=in2 // envp - add out3=16,sp // regs - br.call.sptk.few rp=sys32_execve -1: cmp.ge p6,p0=r8,r0 - mov ar.pfs=loc1 // restore ar.pfs - ;; -(p6) mov ar.pfs=r0 // clear ar.pfs in case of success - sxt4 r8=r8 // return 64-bit result - mov rp=loc0 - br.ret.sptk.few rp -END(ia32_execve) - -ENTRY(ia32_clone) - .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(5) - alloc r16=ar.pfs,5,2,6,0 - DO_SAVE_SWITCH_STACK - mov loc0=rp - mov loc1=r16 // save ar.pfs across do_fork - .body - zxt4 out1=in1 // newsp - mov out3=16 // stacksize (compensates for 16-byte scratch area) - adds out2=IA64_SWITCH_STACK_SIZE+16,sp // out2 = ®s - mov out0=in0 // out0 = clone_flags - zxt4 out4=in2 // out4 = parent_tidptr - zxt4 out5=in4 // out5 = child_tidptr - br.call.sptk.many rp=do_fork -.ret0: .restore sp - adds sp=IA64_SWITCH_STACK_SIZE,sp // pop the switch stack - mov ar.pfs=loc1 - mov rp=loc0 - br.ret.sptk.many rp -END(ia32_clone) - -GLOBAL_ENTRY(ia32_ret_from_clone) - PT_REGS_UNWIND_INFO(0) -{ /* - * Some versions of gas generate bad unwind info if the first instruction of a - * procedure doesn't go into the first slot of a bundle. This is a workaround. - */ - nop.m 0 - nop.i 0 - /* - * We need to call schedule_tail() to complete the scheduling process. - * Called by ia64_switch_to after do_fork()->copy_thread(). r8 contains the - * address of the previously executing task. - */ - br.call.sptk.many rp=ia64_invoke_schedule_tail -} -.ret1: - adds r2=TI_FLAGS+IA64_TASK_SIZE,r13 - ;; - ld4 r2=[r2] - ;; - mov r8=0 - and r2=_TIF_SYSCALL_TRACEAUDIT,r2 - ;; - cmp.ne p6,p0=r2,r0 -(p6) br.cond.spnt .ia32_strace_check_retval - ;; // prevent RAW on r8 -END(ia32_ret_from_clone) - // fall through -GLOBAL_ENTRY(ia32_ret_from_syscall) - PT_REGS_UNWIND_INFO(0) - - cmp.ge p6,p7=r8,r0 // syscall executed successfully? - adds r2=IA64_PT_REGS_R8_OFFSET+16,sp // r2 = &pt_regs.r8 - ;; - alloc r3=ar.pfs,0,0,0,0 // drop the syscall argument frame - st8 [r2]=r8 // store return value in slot for r8 - br.cond.sptk.many ia64_leave_kernel -END(ia32_ret_from_syscall) - - // - // Invoke a system call, but do some tracing before and after the call. - // We MUST preserve the current register frame throughout this routine - // because some system calls (such as ia64_execve) directly - // manipulate ar.pfs. - // - // Input: - // r8 = syscall number - // b6 = syscall entry point - // -GLOBAL_ENTRY(ia32_trace_syscall) - PT_REGS_UNWIND_INFO(0) - mov r3=-38 - adds r2=IA64_PT_REGS_R8_OFFSET+16,sp - ;; - st8 [r2]=r3 // initialize return code to -ENOSYS - br.call.sptk.few rp=syscall_trace_enter // give parent a chance to catch syscall args - cmp.lt p6,p0=r8,r0 // check tracehook - adds r2=IA64_PT_REGS_R8_OFFSET+16,sp // r2 = &pt_regs.r8 - ;; -(p6) st8.spill [r2]=r8 // store return value in slot for r8 -(p6) br.spnt.few .ret4 -.ret2: // Need to reload arguments (they may be changed by the tracing process) - adds r2=IA64_PT_REGS_R1_OFFSET+16,sp // r2 = &pt_regs.r1 - adds r3=IA64_PT_REGS_R13_OFFSET+16,sp // r3 = &pt_regs.r13 - mov r15=IA32_NR_syscalls - ;; - ld4 r8=[r2],IA64_PT_REGS_R9_OFFSET-IA64_PT_REGS_R1_OFFSET - movl r16=ia32_syscall_table - ;; - ld4 r33=[r2],8 // r9 == ecx - ld4 r37=[r3],16 // r13 == ebp - cmp.ltu.unc p6,p7=r8,r15 - ;; - ld4 r34=[r2],8 // r10 == edx - ld4 r36=[r3],8 // r15 == edi -(p6) shladd r16=r8,3,r16 // force ni_syscall if not valid syscall number - ;; - ld8 r16=[r16] - ;; - ld4 r32=[r2],8 // r11 == ebx - mov b6=r16 - ld4 r35=[r3],8 // r14 == esi - br.call.sptk.few rp=b6 // do the syscall -.ia32_strace_check_retval: - cmp.lt p6,p0=r8,r0 // syscall failed? - adds r2=IA64_PT_REGS_R8_OFFSET+16,sp // r2 = &pt_regs.r8 - ;; - st8.spill [r2]=r8 // store return value in slot for r8 - br.call.sptk.few rp=syscall_trace_leave // give parent a chance to catch return value -.ret4: alloc r2=ar.pfs,0,0,0,0 // drop the syscall argument frame - br.cond.sptk.many ia64_leave_kernel -END(ia32_trace_syscall) - -GLOBAL_ENTRY(sys32_vfork) - alloc r16=ar.pfs,2,2,4,0;; - mov out0=IA64_CLONE_VFORK|IA64_CLONE_VM|SIGCHLD // out0 = clone_flags - br.cond.sptk.few .fork1 // do the work -END(sys32_vfork) - -GLOBAL_ENTRY(sys32_fork) - .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2) - alloc r16=ar.pfs,2,2,4,0 - mov out0=SIGCHLD // out0 = clone_flags - ;; -.fork1: - mov loc0=rp - mov loc1=r16 // save ar.pfs across do_fork - DO_SAVE_SWITCH_STACK - - .body - - mov out1=0 - mov out3=0 - adds out2=IA64_SWITCH_STACK_SIZE+16,sp // out2 = ®s - br.call.sptk.few rp=do_fork -.ret5: .restore sp - adds sp=IA64_SWITCH_STACK_SIZE,sp // pop the switch stack - mov ar.pfs=loc1 - mov rp=loc0 - br.ret.sptk.many rp -END(sys32_fork) - - .rodata - .align 8 - .globl ia32_syscall_table -ia32_syscall_table: - data8 sys_ni_syscall /* 0 - old "setup(" system call*/ - data8 sys_exit - data8 sys32_fork - data8 sys_read - data8 sys_write - data8 compat_sys_open /* 5 */ - data8 sys_close - data8 sys32_waitpid - data8 sys_creat - data8 sys_link - data8 sys_unlink /* 10 */ - data8 ia32_execve - data8 sys_chdir - data8 compat_sys_time - data8 sys_mknod - data8 sys_chmod /* 15 */ - data8 sys_lchown /* 16-bit version */ - data8 sys_ni_syscall /* old break syscall holder */ - data8 sys_ni_syscall - data8 sys32_lseek - data8 sys_getpid /* 20 */ - data8 compat_sys_mount - data8 sys_oldumount - data8 sys_setuid /* 16-bit version */ - data8 sys_getuid /* 16-bit version */ - data8 compat_sys_stime /* 25 */ - data8 compat_sys_ptrace - data8 sys32_alarm - data8 sys_ni_syscall - data8 sys_pause - data8 compat_sys_utime /* 30 */ - data8 sys_ni_syscall /* old stty syscall holder */ - data8 sys_ni_syscall /* old gtty syscall holder */ - data8 sys_access - data8 sys_nice - data8 sys_ni_syscall /* 35 */ /* old ftime syscall holder */ - data8 sys_sync - data8 sys_kill - data8 sys_rename - data8 sys_mkdir - data8 sys_rmdir /* 40 */ - data8 sys_dup - data8 sys_ia64_pipe - data8 compat_sys_times - data8 sys_ni_syscall /* old prof syscall holder */ - data8 sys32_brk /* 45 */ - data8 sys_setgid /* 16-bit version */ - data8 sys_getgid /* 16-bit version */ - data8 sys32_signal - data8 sys_geteuid /* 16-bit version */ - data8 sys_getegid /* 16-bit version */ /* 50 */ - data8 sys_acct - data8 sys_umount /* recycled never used phys( */ - data8 sys_ni_syscall /* old lock syscall holder */ - data8 compat_sys_ioctl |