Linux-2.6.12-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, 287 insertions, 0 deletions

diff --git a/include/asm-generic/siginfo.h b/include/asm-generic/siginfo.h
new file mode 100644
index 00000000000..9cac8e8dde5
--- /dev/null
+++ b/include/asm-generic/siginfo.h
@@ -0,0 +1,287 @@
+#ifndef _ASM_GENERIC_SIGINFO_H
+#define _ASM_GENERIC_SIGINFO_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+typedef union sigval {
+	int sival_int;
+	void __user *sival_ptr;
+} sigval_t;
+
+/*
+ * This is the size (including padding) of the part of the
+ * struct siginfo that is before the union.
+ */
+#ifndef __ARCH_SI_PREAMBLE_SIZE
+#define __ARCH_SI_PREAMBLE_SIZE	(3 * sizeof(int))
+#endif
+
+#define SI_MAX_SIZE	128
+#ifndef SI_PAD_SIZE
+#define SI_PAD_SIZE	((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int))
+#endif
+
+#ifndef __ARCH_SI_UID_T
+#define __ARCH_SI_UID_T	uid_t
+#endif
+
+/*
+ * The default "si_band" type is "long", as specified by POSIX.
+ * However, some architectures want to override this to "int"
+ * for historical compatibility reasons, so we allow that.
+ */
+#ifndef __ARCH_SI_BAND_T
+#define __ARCH_SI_BAND_T long
+#endif
+
+#ifndef HAVE_ARCH_SIGINFO_T
+
+typedef struct siginfo {
+	int si_signo;
+	int si_errno;
+	int si_code;
+
+	union {
+		int _pad[SI_PAD_SIZE];
+
+		/* kill() */
+		struct {
+			pid_t _pid;		/* sender's pid */
+			__ARCH_SI_UID_T _uid;	/* sender's uid */
+		} _kill;
+
+		/* POSIX.1b timers */
+		struct {
+			timer_t _tid;		/* timer id */
+			int _overrun;		/* overrun count */
+			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
+			sigval_t _sigval;	/* same as below */
+			int _sys_private;       /* not to be passed to user */
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			pid_t _pid;		/* sender's pid */
+			__ARCH_SI_UID_T _uid;	/* sender's uid */
+			sigval_t _sigval;
+		} _rt;
+
+		/* SIGCHLD */
+		struct {
+			pid_t _pid;		/* which child */
+			__ARCH_SI_UID_T _uid;	/* sender's uid */
+			int _status;		/* exit code */
+			clock_t _utime;
+			clock_t _stime;
+		} _sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+		struct {
+			void __user *_addr; /* faulting insn/memory ref. */
+#ifdef __ARCH_SI_TRAPNO
+			int _trapno;	/* TRAP # which caused the signal */
+#endif
+		} _sigfault;
+
+		/* SIGPOLL */
+		struct {
+			__ARCH_SI_BAND_T _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
+			int _fd;
+		} _sigpoll;
+	} _sifields;
+} siginfo_t;
+
+#endif
+
+/*
+ * How these fields are to be accessed.
+ */
+#define si_pid		_sifields._kill._pid
+#define si_uid		_sifields._kill._uid
+#define si_tid		_sifields._timer._tid
+#define si_overrun	_sifields._timer._overrun
+#define si_sys_private  _sifields._timer._sys_private
+#define si_status	_sifields._sigchld._status
+#define si_utime	_sifields._sigchld._utime
+#define si_stime	_sifields._sigchld._stime
+#define si_value	_sifields._rt._sigval
+#define si_int		_sifields._rt._sigval.sival_int
+#define si_ptr		_sifields._rt._sigval.sival_ptr
+#define si_addr		_sifields._sigfault._addr
+#ifdef __ARCH_SI_TRAPNO
+#define si_trapno	_sifields._sigfault._trapno
+#endif
+#define si_band		_sifields._sigpoll._band
+#define si_fd		_sifields._sigpoll._fd
+
+#ifdef __KERNEL__
+#define __SI_MASK	0xffff0000u
+#define __SI_KILL	(0 << 16)
+#define __SI_TIMER	(1 << 16)
+#define __SI_POLL	(2 << 16)
+#define __SI_FAULT	(3 << 16)
+#define __SI_CHLD	(4 << 16)
+#define __SI_RT		(5 << 16)
+#define __SI_MESGQ	(6 << 16)
+#define __SI_CODE(T,N)	((T) | ((N) & 0xffff))
+#else
+#define __SI_KILL	0
+#define __SI_TIMER	0
+#define __SI_POLL	0
+#define __SI_FAULT	0
+#define __SI_CHLD	0
+#define __SI_RT		0
+#define __SI_MESGQ	0
+#define __SI_CODE(T,N)	(N)
+#endif
+
+/*
+ * si_code values
+ * Digital reserves positive values for kernel-generated signals.
+ */
+#define SI_USER		0		/* sent by kill, sigsend, raise */
+#define SI_KERNEL	0x80		/* sent by the kernel from somewhere */
+#define SI_QUEUE	-1		/* sent by sigqueue */
+#define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
+#define SI_MESGQ __SI_CODE(__SI_MESGQ,-3) /* sent by real time mesq state change */
+#define SI_ASYNCIO	-4		/* sent by AIO completion */
+#define SI_SIGIO	-5		/* sent by queued SIGIO */
+#define SI_TKILL	-6		/* sent by tkill system call */
+#define SI_DETHREAD	-7		/* sent by execve() killing subsidiary threads */
+
+#define SI_FROMUSER(siptr)	((siptr)->si_code <= 0)
+#define SI_FROMKERNEL(siptr)	((siptr)->si_code > 0)
+
+/*
+ * SIGILL si_codes
+ */
+#define ILL_ILLOPC	(__SI_FAULT|1)	/* illegal opcode */
+#define ILL_ILLOPN	(__SI_FAULT|2)	/* illegal operand */
+#define ILL_ILLADR	(__SI_FAULT|3)	/* illegal addressing mode */
+#define ILL_ILLTRP	(__SI_FAULT|4)	/* illegal trap */
+#define ILL_PRVOPC	(__SI_FAULT|5)	/* privileged opcode */
+#define ILL_PRVREG	(__SI_FAULT|6)	/* privileged register */
+#define ILL_COPROC	(__SI_FAULT|7)	/* coprocessor error */
+#define ILL_BADSTK	(__SI_FAULT|8)	/* internal stack error */
+#define NSIGILL		8
+
+/*
+ * SIGFPE si_codes
+ */
+#define FPE_INTDIV	(__SI_FAULT|1)	/* integer divide by zero */
+#define FPE_INTOVF	(__SI_FAULT|2)	/* integer overflow */
+#define FPE_FLTDIV	(__SI_FAULT|3)	/* floating point divide by zero */
+#define FPE_FLTOVF	(__SI_FAULT|4)	/* floating point overflow */
+#define FPE_FLTUND	(__SI_FAULT|5)	/* floating point underflow */
+#define FPE_FLTRES	(__SI_FAULT|6)	/* floating point inexact result */
+#define FPE_FLTINV	(__SI_FAULT|7)	/* floating point invalid operation */
+#define FPE_FLTSUB	(__SI_FAULT|8)	/* subscript out of range */
+#define NSIGFPE		8
+
+/*
+ * SIGSEGV si_codes
+ */
+#define SEGV_MAPERR	(__SI_FAULT|1)	/* address not mapped to object */
+#define SEGV_ACCERR	(__SI_FAULT|2)	/* invalid permissions for mapped object */
+#define NSIGSEGV	2
+
+/*
+ * SIGBUS si_codes
+ */
+#define BUS_ADRALN	(__SI_FAULT|1)	/* invalid address alignment */
+#define BUS_ADRERR	(__SI_FAULT|2)	/* non-existant physical address */
+#define BUS_OBJERR	(__SI_FAULT|3)	/* object specific hardware error */
+#define NSIGBUS		3
+
+/*
+ * SIGTRAP si_codes
+ */
+#define TRAP_BRKPT	(__SI_FAULT|1)	/* process breakpoint */
+#define TRAP_TRACE	(__SI_FAULT|2)	/* process trace trap */
+#define NSIGTRAP	2
+
+/*
+ * SIGCHLD si_codes
+ */
+#define CLD_EXITED	(__SI_CHLD|1)	/* child has exited */
+#define CLD_KILLED	(__SI_CHLD|2)	/* child was killed */
+#define CLD_DUMPED	(__SI_CHLD|3)	/* child terminated abnormally */
+#define CLD_TRAPPED	(__SI_CHLD|4)	/* traced child has trapped */
+#define CLD_STOPPED	(__SI_CHLD|5)	/* child has stopped */
+#define CLD_CONTINUED	(__SI_CHLD|6)	/* stopped child has continued */
+#define NSIGCHLD	6
+
+/*
+ * SIGPOLL si_codes
+ */
+#define POLL_IN		(__SI_POLL|1)	/* data input available */
+#define POLL_OUT	(__SI_POLL|2)	/* output buffers available */
+#define POLL_MSG	(__SI_POLL|3)	/* input message available */
+#define POLL_ERR	(__SI_POLL|4)	/* i/o error */
+#define POLL_PRI	(__SI_POLL|5)	/* high priority input available */
+#define POLL_HUP	(__SI_POLL|6)	/* device disconnected */
+#define NSIGPOLL	6
+
+/*
+ * sigevent definitions
+ * 
+ * It seems likely that SIGEV_THREAD will have to be handled from 
+ * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
+ * thread manager then catches and does the appropriate nonsense.
+ * However, everything is written out here so as to not get lost.
+ */
+#define SIGEV_SIGNAL	0	/* notify via signal */
+#define SIGEV_NONE	1	/* other notification: meaningless */
+#define SIGEV_THREAD	2	/* deliver via thread creation */
+#define SIGEV_THREAD_ID 4	/* deliver to thread */
+
+#define SIGEV_MAX_SIZE	64
+#ifndef SIGEV_PAD_SIZE
+#define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 3)
+#endif
+
+typedef struct sigevent {
+	sigval_t sigev_value;
+	int sigev_signo;
+	int sigev_notify;
+	union {
+		int _pad[SIGEV_PAD_SIZE];
+		 int _tid;
+
+		struct {
+			void (*_function)(sigval_t);
+			void *_attribute;	/* really pthread_attr_t */
+		} _sigev_thread;
+	} _sigev_un;
+} sigevent_t;
+
+#define sigev_notify_function	_sigev_un._sigev_thread._function
+#define sigev_notify_attributes	_sigev_un._sigev_thread._attribute
+#define sigev_notify_thread_id	 _sigev_un._tid
+
+#ifdef __KERNEL__
+
+struct siginfo;
+void do_schedule_next_timer(struct siginfo *info);
+
+#ifndef HAVE_ARCH_COPY_SIGINFO
+
+#include <linux/string.h>
+
+static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
+{
+	if (from->si_code < 0)
+		memcpy(to, from, sizeof(*to));
+	else
+		/* _sigchld is currently the largest know union member */
+		memcpy(to, from, __ARCH_SI_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
+}
+
+#endif
+
+extern int copy_siginfo_to_user(struct siginfo __user *to, struct siginfo *from);
+
+#endif /* __KERNEL__ */
+
+#endif