Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 500 insertions, 0 deletions

diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S
new file mode 100644
index 000000000000..829a6d80711c
--- /dev/null
+++ b/arch/ia64/ia32/ia32_entry.S
@@ -0,0 +1,500 @@
+#include <asm/asmmacro.h>
+#include <asm/ia32.h>
+#include <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 = &regs
+	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)
+
+ENTRY(sys32_rt_sigsuspend)
+	.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
+	alloc loc1=ar.pfs,8,2,3,0		// preserve all eight input regs
+	mov loc0=rp
+	mov out0=in0				// mask
+	mov out1=in1				// sigsetsize
+	mov out2=sp				// out2 = &sigscratch
+	.fframe 16
+	adds sp=-16,sp				// allocate dummy "sigscratch"
+	;;
+	.body
+	br.call.sptk.many rp=ia32_rt_sigsuspend
+1:	.restore sp
+	adds sp=16,sp
+	mov rp=loc0
+	mov ar.pfs=loc1
+	br.ret.sptk.many rp
+END(sys32_rt_sigsuspend)
+
+ENTRY(sys32_sigsuspend)
+	.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
+	alloc loc1=ar.pfs,8,2,3,0		// preserve all eight input regs
+	mov loc0=rp
+	mov out0=in2				// mask (first two args are ignored)
+	;;
+	mov out1=sp				// out1 = &sigscratch
+	.fframe 16
+	adds sp=-16,sp				// allocate dummy "sigscratch"
+	.body
+	br.call.sptk.many rp=ia32_sigsuspend
+1:	.restore sp
+	adds sp=16,sp
+	mov rp=loc0
+	mov ar.pfs=loc1
+	br.ret.sptk.many rp
+END(sys32_sigsuspend)
+
+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 thrugh
+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
+.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 = &regs
+	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 sys32_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 sys32_ptrace
+	data8 sys32_alarm
+	data8 sys_ni_syscall
+	data8 sys32_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 sys32_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
+	data8 compat_sys_fcntl	  /* 55 */
+	data8 sys_ni_syscall	  /* old mpx syscall holder */
+	data8 sys_setpgid
+	data8 sys_ni_syscall	  /* old ulimit syscall holder */
+	data8 sys_ni_syscall
+	data8 sys_umask		  /* 60 */
+	data8 sys_chroot
+	data8 sys_ustat
+	data8 sys_dup2
+	data8 sys_getppid
+	data8 sys_getpgrp	  /* 65 */
+	data8 sys_setsid
+	data8 sys32_sigaction
+	data8 sys_ni_syscall
+	data8 sys_ni_syscall
+	data8 sys_setreuid	/* 16-bit version */	  /* 70 */
+	data8 sys_setregid	/* 16-bit version */
+	data8 sys32_sigsuspend
+	data8 compat_sys_sigpending
+	data8 sys_sethostname
+	data8 compat_sys_setrlimit	  /* 75 */
+	data8 compat_sys_old_getrlimit
+	data8 compat_sys_getrusage
+	data8 sys32_gettimeofday
+	data8 sys32_settimeofday
+	data8 sys32_getgroups16	  /* 80 */
+	data8 sys32_setgroups16
+	data8 sys32_old_select
+	data8 sys_symlink
+	data8 sys_ni_syscall
+	data8 sys_readlink	  /* 85 */
+	data8 sys_uselib
+	data8 sys_swapon
+	data8 sys_reboot
+	data8 sys32_readdir
+	data8 sys32_mmap	  /* 90 */
+	data8 sys32_munmap
+	data8 sys_truncate
+	data8 sys_ftruncate
+	data8 sys_fchmod
+	data8 sys_fchown	/* 16-bit version */	  /* 95 */
+	data8 sys_getpriority
+	data8 sys_setpriority
+	data8 sys_ni_syscall	  /* old profil syscall holder */
+	data8 compat_sys_statfs
+	data8 compat_sys_fstatfs	  /* 100 */
+	data8 sys_ni_syscall	/* ioperm */
+	data8 compat_sys_socketcall
+	data8 sys_syslog
+	data8 compat_sys_setitimer
+	data8 compat_sys_getitimer	  /* 105 */
+	data8 compat_sys_newstat
+	data8 compat_sys_newlstat
+	data8 compat_sys_newfstat
+	data8 sys_ni_syscall
+	data8 sys_ni_syscall	/* iopl */	/* 110 */
+	data8 sys_vhangup
+	data8 sys_ni_syscall		/* used to be sys_idle */
+	data8 sys_ni_syscall
+	data8 compat_sys_wait4
+	data8 sys_swapoff	  /* 115 */
+	data8 sys32_sysinfo
+	data8 sys32_ipc
+	data8 sys_fsync
+	data8 sys32_sigreturn
+	data8 ia32_clone	  /* 120 */
+	data8 sys_setdomainname
+	data8 sys32_newuname
+	data8 sys32_modify_ldt
+	data8 sys_ni_syscall	/* adjtimex */
+	data8 sys32_mprotect	  /* 125 */
+	data8 compat_sys_sigprocmask
+	data8 sys_ni_syscall	/* create_module */
+	data8 sys_ni_syscall	/* init_module */
+	data8 sys_ni_syscall	/* delete_module */
+	data8 sys_ni_syscall	/* get_kernel_syms */  /* 130 */
+	data8 sys_quotactl
+	data8 sys_getpgid
+	data8 sys_fchdir
+	data8 sys_ni_syscall	/* sys_bdflush */
+	data8 sys_sysfs		/* 135 */
+	data8 sys32_personality
+	data8 sys_ni_syscall	  /* for afs_syscall */
+	data8 sys_setfsuid	/* 16-bit version */
+	data8 sys_setfsgid	/* 16-bit version */
+	data8 sys_llseek	  /* 140 */
+	data8 compat_sys_getdents
+	data8 compat_sys_select
+	data8 sys_flock
+	data8 sys32_msync
+	data8 compat_sys_readv	  /* 145 */
+	data8 compat_sys_writev
+	data8 sys_getsid
+	data8 sys_fdatasync
+	data8 sys32_sysctl
+	data8 sys_mlock		  /* 150 */
+	data8 sys_munlock
+	data8 sys_mlockall
+	data8 sys_munlockall
+	data8 sys_sched_setparam
+	data8 sys_sched_getparam  /* 155 */
+	data8 sys_sched_setscheduler
+	data8 sys_sched_getscheduler
+	data8 sys_sched_yield
+	data8 sys_sched_get_priority_max
+	data8 sys_sched_get_priority_min	 /* 160 */
+	data8 sys32_sched_rr_get_interval
+	data8 compat_sys_nanosleep
+	data8 sys32_mremap
+	data8 sys_setresuid	/* 16-bit version */
+	data8 sys32_getresuid16	/* 16-bit version */	  /* 165 */
+	data8 sys_ni_syscall	/* vm86 */
+	data8 sys_ni_syscall	/* sys_query_module */
+	data8 sys_poll
+	data8 sys_ni_syscall	/* nfsservctl */
+	data8 sys_setresgid	  /* 170 */
+	data8 sys32_getresgid16
+	data8 sys_prctl
+	data8 sys32_rt_sigreturn
+	data8 sys32_rt_sigaction
+	data8 sys32_rt_sigprocmask /* 175 */
+	data8 sys_rt_sigpending
+	data8 compat_sys_rt_sigtimedwait
+	data8 sys32_rt_sigqueueinfo
+	data8 sys32_rt_sigsuspend
+	data8 sys32_pread	  /* 180 */
+	data8 sys32_pwrite
+	data8 sys_chown	/* 16-bit version */
+	data8 sys_getcwd
+	data8 sys_capget
+	data8 sys_capset	  /* 185 */
+	data8 sys32_sigaltstack
+	data8 sys32_sendfile
+	data8 sys_ni_syscall		  /* streams1 */
+	data8 sys_ni_syscall		  /* streams2 */
+	data8 sys32_vfork	  /* 190 */
+	data8 compat_sys_getrlimit
+	data8 sys32_mmap2
+	data8 sys32_truncate64
+	data8 sys32_ftruncate64
+	data8 sys32_stat64	  /* 195 */
+	data8 sys32_lstat64
+	data8 sys32_fstat64
+	data8 sys_lchown
+	data8 sys_getuid
+	data8 sys_getgid	  /* 200 */
+	data8 sys_geteuid
+	data8 sys_getegid
+	data8 sys_setreuid
+	data8 sys_setregid
+	data8 sys_getgroups	  /* 205 */
+	data8 sys_setgroups
+	data8 sys_fchown
+	data8 sys_setresuid
+	data8 sys_getresuid
+	data8 sys_setresgid	  /* 210 */
+	data8 sys_getresgid
+	data8 sys_chown
+	data8 sys_setuid
+	data8 sys_setgid
+	data8 sys_setfsuid	  /* 215 */
+	data8 sys_setfsgid
+	data8 sys_pivot_root
+	data8 sys_mincore
+	data8 sys_madvise
+	data8 compat_sys_getdents64	  /* 220 */
+	data8 compat_sys_fcntl64
+	data8 sys_ni_syscall		/* reserved for TUX */
+	data8 sys_ni_syscall		/* reserved for Security */
+	data8 sys_gettid
+	data8 sys_readahead	  /* 225 */
+ 	data8 sys_setxattr
+ 	data8 sys_lsetxattr
+ 	data8 sys_fsetxattr
+ 	data8 sys_getxattr
+ 	data8 sys_lgetxattr	/* 230 */
+ 	data8 sys_fgetxattr
+ 	data8 sys_listxattr
+ 	data8 sys_llistxattr
+ 	data8 sys_flistxattr
+ 	data8 sys_removexattr	/* 235 */
+ 	data8 sys_lremovexattr
+ 	data8 sys_fremovexattr
+	data8 sys_tkill
+ 	data8 sys_sendfile64
+	data8 compat_sys_futex	/* 240 */
+	data8 compat_sys_sched_setaffinity
+	data8 compat_sys_sched_getaffinity
+	data8 sys32_set_thread_area
+	data8 sys32_get_thread_area
+ 	data8 compat_sys_io_setup	/* 245 */
+ 	data8 sys_io_destroy
+ 	data8 compat_sys_io_getevents
+ 	data8 compat_sys_io_submit
+ 	data8 sys_io_cancel
+ 	data8 sys_fadvise64	/* 250 */
+	data8 sys_ni_syscall
+	data8 sys_exit_group
+ 	data8 sys_lookup_dcookie
+	data8 sys_epoll_create
+	data8 sys32_epoll_ctl	/* 255 */
+	data8 sys32_epoll_wait
+	data8 sys_remap_file_pages
+	data8 sys_set_tid_address
+ 	data8 sys32_timer_create
+ 	data8 compat_sys_timer_settime	/* 260 */
+ 	data8 compat_sys_timer_gettime
+ 	data8 sys_timer_getoverrun
+ 	data8 sys_timer_delete
+ 	data8 compat_sys_clock_settime
+ 	data8 compat_sys_clock_gettime /* 265 */
+ 	data8 compat_sys_clock_getres
+ 	data8 compat_sys_clock_nanosleep
+	data8 compat_sys_statfs64
+	data8 compat_sys_fstatfs64
+ 	data8 sys_tgkill	/* 270 */
+ 	data8 compat_sys_utimes
+ 	data8 sys32_fadvise64_64
+ 	data8 sys_ni_syscall
+  	data8 sys_ni_syscall
+ 	data8 sys_ni_syscall	/* 275 */
+  	data8 sys_ni_syscall
+  	data8 compat_sys_mq_open
+  	data8 sys_mq_unlink
+  	data8 compat_sys_mq_timedsend
+  	data8 compat_sys_mq_timedreceive	/* 280 */
+  	data8 compat_sys_mq_notify
+  	data8 compat_sys_mq_getsetattr
+	data8 sys_ni_syscall		/* reserved for kexec */
+	data8 compat_sys_waitid
+
+	// guard against failures to increase IA32_NR_syscalls
+	.org ia32_syscall_table + 8*IA32_NR_syscalls