auto import from //branches/cupcake/...@130745

1 files changed, 117 insertions, 471 deletions

diff --git a/osdep.c b/osdep.c
index b623e13..49193e9 100644
--- a/osdep.c
+++ b/osdep.c
@@ -27,256 +27,17 @@
 #include <string.h>
 #include <errno.h>
 #include <unistd.h>
-
-#include "cpu.h"
-#if defined(USE_KQEMU)
-#include "vl.h"
-#endif
-
-#if defined(__i386__) && !defined(CONFIG_SOFTMMU) && !defined(CONFIG_USER_ONLY)
-
-#include <sys/mman.h>
-#include <sys/ipc.h>
-
-/* When not using soft mmu, libc independant functions are needed for
-   the CPU core because it needs to use alternates stacks and
-   libc/thread incompatibles settings */
-
-#include <linux/unistd.h>
-
-#define QEMU_SYSCALL0(name) \
-{ \
-long __res; \
-__asm__ volatile ("int $0x80" \
-	: "=a" (__res) \
-	: "0" (__NR_##name)); \
-return __res; \
-}
-
-#define QEMU_SYSCALL1(name,arg1) \
-{ \
-long __res; \
-__asm__ volatile ("int $0x80" \
-	: "=a" (__res) \
-	: "0" (__NR_##name),"b" ((long)(arg1))); \
-return __res; \
-}
-
-#define QEMU_SYSCALL2(name,arg1,arg2) \
-{ \
-long __res; \
-__asm__ volatile ("int $0x80" \
-	: "=a" (__res) \
-	: "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2))); \
-return __res; \
-}
-
-#define QEMU_SYSCALL3(name,arg1,arg2,arg3) \
-{ \
-long __res; \
-__asm__ volatile ("int $0x80" \
-	: "=a" (__res) \
-	: "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
-		  "d" ((long)(arg3))); \
-return __res; \
-}
-
-#define QEMU_SYSCALL4(name,arg1,arg2,arg3,arg4) \
-{ \
-long __res; \
-__asm__ volatile ("int $0x80" \
-	: "=a" (__res) \
-	: "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
-	  "d" ((long)(arg3)),"S" ((long)(arg4))); \
-return __res; \
-}
-
-#define QEMU_SYSCALL5(name,arg1,arg2,arg3,arg4,arg5) \
-{ \
-long __res; \
-__asm__ volatile ("int $0x80" \
-	: "=a" (__res) \
-	: "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
-	  "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5))); \
-return __res; \
-}
-
-#define QEMU_SYSCALL6(name,arg1,arg2,arg3,arg4,arg5,arg6) \
-{ \
-long __res; \
-__asm__ volatile ("push %%ebp ; movl %%eax,%%ebp ; movl %1,%%eax ; int $0x80 ; pop %%ebp" \
-	: "=a" (__res) \
-	: "i" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
-	  "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)), \
-	  "0" ((long)(arg6))); \
-return __res; \
-}
-
-int qemu_write(int fd, const void *buf, size_t n)
-{
-    QEMU_SYSCALL3(write, fd, buf, n);
-}
-
-
-
-/****************************************************************/
-/* shmat replacement */
-
-int qemu_ipc(int call, unsigned long first,
-            unsigned long second, unsigned long third,
-            void *ptr, unsigned long fifth)
-{
-    QEMU_SYSCALL6(ipc, call, first, second, third, ptr, fifth);
-}
-
-#define SHMAT 21
-
-/* we must define shmat so that a specific address will be used when
-   mapping the X11 ximage */
-void *shmat(int shmid, const void *shmaddr, int shmflg)
-{
-    void *ptr;
-    int ret;
-    /* we give an address in the right memory area */
-    if (!shmaddr)
-        shmaddr = get_mmap_addr(8192 * 1024);
-    ret = qemu_ipc(SHMAT, shmid, shmflg, (unsigned long)&ptr, (void *)shmaddr, 0);
-    if (ret < 0)
-        return NULL;
-    return ptr;
-}
-
-/****************************************************************/
-/* sigaction bypassing the threads */
-
-static int kernel_sigaction(int signum, const struct qemu_sigaction *act,
-                            struct qemu_sigaction *oldact,
-                            int sigsetsize)
-{
-    QEMU_SYSCALL4(rt_sigaction, signum, act, oldact, sigsetsize);
-}
-
-int qemu_sigaction(int signum, const struct qemu_sigaction *act,
-                   struct qemu_sigaction *oldact)
-{
-    return kernel_sigaction(signum, act, oldact, 8);
-}
-
-/****************************************************************/
-/* memory allocation */
-
-//#define DEBUG_MALLOC
-
-#define MALLOC_BASE       0xab000000
-#define PHYS_RAM_BASE     0xac000000
-
-#define MALLOC_ALIGN      16
-#define BLOCK_HEADER_SIZE 16
-
-typedef struct MemoryBlock {
-    struct MemoryBlock *next;
-    unsigned long size; /* size of block, including header */
-} MemoryBlock;
-
-static MemoryBlock *first_free_block;
-static unsigned long malloc_addr = MALLOC_BASE;
-
-static void *malloc_get_space(size_t size)
-{
-    void *ptr;
-    size = TARGET_PAGE_ALIGN(size);
-    ptr = mmap((void *)malloc_addr, size,
-               PROT_WRITE | PROT_READ,
-               MAP_PRIVATE | MAP_FIXED | MAP_ANON, -1, 0);
-    if (ptr == MAP_FAILED)
-        return NULL;
-    malloc_addr += size;
-    return ptr;
-}
-
-void *qemu_malloc(size_t size)
-{
-    MemoryBlock *mb, *mb1, **pmb;
-    void *ptr;
-    size_t size1, area_size;
-
-    if (size == 0)
-        return NULL;
-
-    size = (size + BLOCK_HEADER_SIZE + MALLOC_ALIGN - 1) & ~(MALLOC_ALIGN - 1);
-    pmb = &first_free_block;
-    for(;;) {
-        mb = *pmb;
-        if (mb == NULL)
-            break;
-        if (size <= mb->size)
-            goto found;
-        pmb = &mb->next;
-    }
-    /* no big enough blocks found: get new space */
-    area_size = TARGET_PAGE_ALIGN(size);
-    mb = malloc_get_space(area_size);
-    if (!mb)
-        return NULL;
-    size1 = area_size - size;
-    if (size1 > 0) {
-        /* create a new free block */
-        mb1 = (MemoryBlock *)((uint8_t *)mb + size);
-        mb1->next = NULL;
-        mb1->size = size1;
-        *pmb = mb1;
-    }
-    goto the_end;
- found:
-    /* a free block was found: use it */
-    size1 = mb->size - size;
-    if (size1 > 0) {
-        /* create a new free block */
-        mb1 = (MemoryBlock *)((uint8_t *)mb + size);
-        mb1->next = mb->next;
-        mb1->size = size1;
-        *pmb = mb1;
-    } else {
-        /* suppress the first block */
-        *pmb = mb->next;
-    }
- the_end:
-    mb->size = size;
-    mb->next = NULL;
-    ptr = ((uint8_t *)mb + BLOCK_HEADER_SIZE);
-#ifdef DEBUG_MALLOC
-    qemu_printf("malloc: size=0x%x ptr=0x%lx\n", size, (unsigned long)ptr);
+#include <fcntl.h>
+#ifdef HOST_SOLARIS
+#include <sys/types.h>
+#include <sys/statvfs.h>
 #endif
-    return ptr;
-}
-
-void qemu_free(void *ptr)
-{
-    MemoryBlock *mb;
-
-    if (!ptr)
-        return;
-    mb = (MemoryBlock *)((uint8_t *)ptr - BLOCK_HEADER_SIZE);
-    mb->next = first_free_block;
-    first_free_block = mb;
-}
-
-/****************************************************************/
-/* virtual memory allocation */
-
-unsigned long mmap_addr = PHYS_RAM_BASE;
 
-void *get_mmap_addr(unsigned long size)
-{
-    unsigned long addr;
-    addr = mmap_addr;
-    mmap_addr += ((size + 4095) & ~4095) + 4096;
-    return (void *)addr;
-}
-
-#else
+#include "qemu-common.h"
+#include "sysemu.h"
 
 #ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #elif defined(_BSD)
 #include <stdlib.h>
@@ -284,33 +45,13 @@ void *get_mmap_addr(unsigned long size)
 #include <malloc.h>
 #endif
 
-int qemu_write(int fd, const void *buf, size_t n)
-{
-    int ret;
-    ret = write(fd, buf, n);
-    if (ret < 0)
-        return -errno;
-    else
-        return ret;
-}
-
-void *get_mmap_addr(unsigned long size)
-{
-    return NULL;
-}
-
-void qemu_free(void *ptr)
-{
-    free(ptr);
-}
 
-void *qemu_malloc(size_t size)
+#if defined(_WIN32)
+void *qemu_memalign(size_t alignment, size_t size)
 {
-    return malloc(size);
+    return VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE);
 }
 
-#if defined(_WIN32)
-
 void *qemu_vmalloc(size_t size)
 {
     /* FIXME: this is not exactly optimal solution since VirtualAlloc
@@ -328,28 +69,48 @@ void qemu_vfree(void *ptr)
 
 #if defined(USE_KQEMU)
 
+#ifdef __OpenBSD__
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#else
 #include <sys/vfs.h>
+#endif
+
 #include <sys/mman.h>
 #include <fcntl.h>
 
-void *kqemu_vmalloc(size_t size)
+static void *kqemu_vmalloc(size_t size)
 {
     static int phys_ram_fd = -1;
     static int phys_ram_size = 0;
+    void *ptr;
+
+#ifdef __OpenBSD__ /* no need (?) for a dummy file on OpenBSD */
+    int map_anon = MAP_ANON;
+#else
+    int map_anon = 0;
     const char *tmpdir;
     char phys_ram_file[1024];
-    void *ptr;
+#ifdef HOST_SOLARIS
+    struct statvfs stfs;
+#else
     struct statfs stfs;
+#endif
 
     if (phys_ram_fd < 0) {
         tmpdir = getenv("QEMU_TMPDIR");
         if (!tmpdir)
+#ifdef HOST_SOLARIS
+            tmpdir = "/tmp";
+        if (statvfs(tmpdir, &stfs) == 0) {
+#else
             tmpdir = "/dev/shm";
         if (statfs(tmpdir, &stfs) == 0) {
+#endif
             int64_t free_space;
             int ram_mb;
 
-            extern int ram_size;
             free_space = (int64_t)stfs.f_bavail * stfs.f_bsize;
             if ((ram_size + 8192 * 1024) >= free_space) {
                 ram_mb = (ram_size / (1024 * 1024));
@@ -358,8 +119,7 @@ void *kqemu_vmalloc(size_t size)
                         tmpdir, ram_mb);
                 if (strcmp(tmpdir, "/dev/shm") == 0) {
                     fprintf(stderr, "To have more space available provided you have enough RAM and swap, do as root:\n"
-                            "umount /dev/shm\n"
-                            "mount -t tmpfs -o size=%dm none /dev/shm\n",
+                            "mount -o remount,size=%dm /dev/shm\n",
                             ram_mb + 16);
                 } else {
                     fprintf(stderr,
@@ -373,7 +133,8 @@ void *kqemu_vmalloc(size_t size)
         }
         snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/qemuXXXXXX",
                  tmpdir);
-        if (mkstemp(phys_ram_file) < 0) {
+        phys_ram_fd = mkstemp(phys_ram_file);
+        if (phys_ram_fd < 0) {
             fprintf(stderr,
                     "warning: could not create temporary file in '%s'.\n"
                     "Use QEMU_TMPDIR to select a directory in a tmpfs filesystem.\n"
@@ -381,25 +142,21 @@ void *kqemu_vmalloc(size_t size)
                     tmpdir);
             snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/qemuXXXXXX",
                      "/tmp");
-            if (mkstemp(phys_ram_file) < 0) {
+            phys_ram_fd = mkstemp(phys_ram_file);
+            if (phys_ram_fd < 0) {
                 fprintf(stderr, "Could not create temporary memory file '%s'\n",
                         phys_ram_file);
                 exit(1);
             }
         }
-        phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR | O_BINARY, 0600);
-        if (phys_ram_fd < 0) {
-            fprintf(stderr, "Could not open temporary memory file '%s'\n",
-                    phys_ram_file);
-            exit(1);
-        }
         unlink(phys_ram_file);
     }
     size = (size + 4095) & ~4095;
     ftruncate(phys_ram_fd, phys_ram_size + size);
+#endif /* !__OpenBSD__ */
     ptr = mmap(NULL,
                size,
-               PROT_WRITE | PROT_READ, MAP_SHARED,
+               PROT_WRITE | PROT_READ, map_anon | MAP_SHARED,
                phys_ram_fd, phys_ram_size);
     if (ptr == MAP_FAILED) {
         fprintf(stderr, "Could not map physical memory\n");
@@ -409,13 +166,29 @@ void *kqemu_vmalloc(size_t size)
     return ptr;
 }
 
-void kqemu_vfree(void *ptr)
+static void kqemu_vfree(void *ptr)
 {
     /* may be useful some day, but currently we do not need to free */
 }
 
 #endif
 
+void *qemu_memalign(size_t alignment, size_t size)
+{
+#if defined(_POSIX_C_SOURCE)
+    int ret;
+    void *ptr;
+    ret = posix_memalign(&ptr, alignment, size);
+    if (ret != 0)
+        return NULL;
+    return ptr;
+#elif defined(_BSD)
+    return valloc(size);
+#else
+    return memalign(alignment, size);
+#endif
+}
+
 /* alloc shared memory pages */
 void *qemu_vmalloc(size_t size)
 {
@@ -441,202 +214,75 @@ void qemu_vfree(void *ptr)
 
 #endif
 
-#endif
-
-void *qemu_mallocz(size_t size)
+int qemu_create_pidfile(const char *filename)
 {
-    void *ptr;
-    ptr = qemu_malloc(size);
-    if (!ptr)
-        return NULL;
-    memset(ptr, 0, size);
-    return ptr;
-}
+    char buffer[128];
+    int len;
+#ifndef _WIN32
+    int fd;
 
-char *qemu_strdup(const char *str)
-{
-    char *ptr;
-    ptr = qemu_malloc(strlen(str) + 1);
-    if (!ptr)
-        return NULL;
-    strcpy(ptr, str);
-    return ptr;
-}
+    fd = open(filename, O_RDWR | O_CREAT, 0600);
+    if (fd == -1)
+        return -1;
 
-/****************************************************************/
-/* printf support */
+    if (lockf(fd, F_TLOCK, 0) == -1)
+        return -1;
 
-static inline int qemu_isdigit(int c)
-{
-    return c >= '0' && c <= '9';
+    len = snprintf(buffer, sizeof(buffer), "%ld\n", (long)getpid());
+    if (write(fd, buffer, len) != len)
+        return -1;
+#else
+    HANDLE file;
+    DWORD flags;
+    OVERLAPPED overlap;
+    BOOL ret;
+
+    /* Open for writing with no sharing. */
+    file = CreateFile(filename, GENERIC_WRITE, 0, NULL,
+		      OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+
+    if (file == INVALID_HANDLE_VALUE)
+      return -1;
+
+    flags = LOCKFILE_EXCLUSIVE_LOCK | LOCKFILE_FAIL_IMMEDIATELY;
+    overlap.hEvent = 0;
+    /* Lock 1 byte. */
+    ret = LockFileEx(file, flags, 0, 0, 1, &overlap);
+    if (ret == 0)
+      return -1;
+
+    /* Write PID to file. */
+    len = snprintf(buffer, sizeof(buffer), "%ld\n", (long)getpid());
+    ret = WriteFileEx(file, (LPCVOID)buffer, (DWORD)len,
+		      &overlap, NULL);
+    if (ret == 0)
+      return -1;
+#endif
+    return 0;
 }
 
-#define OUTCHAR(c)	(buflen > 0? (--buflen, *buf++ = (c)): 0)
+#ifdef _WIN32
+
+/* Offset between 1/1/1601 and 1/1/1970 in 100 nanosec units */
+#define _W32_FT_OFFSET (116444736000000000ULL)
 
-/* from BSD ppp sources */
-int qemu_vsnprintf(char *buf, int buflen, const char *fmt, va_list args)
+int qemu_gettimeofday(qemu_timeval *tp)
 {
-    int c, i, n;
-    int width, prec, fillch;
-    int base, len, neg;
-    unsigned long val = 0;
-    const char *f;
-    char *str, *buf0;
-    char num[32];
-    static const char hexchars[] = "0123456789abcdef";
-
-    buf0 = buf;
-    --buflen;
-    while (buflen > 0) {
-	for (f = fmt; *f != '%' && *f != 0; ++f)
-	    ;
-	if (f > fmt) {
-	    len = f - fmt;
-	    if (len > buflen)
-		len = buflen;
-	    memcpy(buf, fmt, len);
-	    buf += len;
-	    buflen -= len;
-	    fmt = f;
-	}
-	if (*fmt == 0)
-	    break;
-	c = *++fmt;
-	width = prec = 0;
-	fillch = ' ';
-	if (c == '0') {
-	    fillch = '0';
-	    c = *++fmt;
-	}
-	if (c == '*') {
-	    width = va_arg(args, int);
-	    c = *++fmt;
-	} else {
-	    while (qemu_isdigit(c)) {
-		width = width * 10 + c - '0';
-		c = *++fmt;
-	    }
-	}
-	if (c == '.') {
-	    c = *++fmt;
-	    if (c == '*') {
-		prec = va_arg(args, int);
-		c = *++fmt;
-	    } else {
-		while (qemu_isdigit(c)) {
-		    prec = prec * 10 + c - '0';
-		    c = *++fmt;
-		}
-	    }
-	}
-        /* modifiers */
-        switch(c) {
-        case 'l':
-            c = *++fmt;
-            break;
-        default:
-            break;
-        }
-        str = 0;
-	base = 0;
-	neg = 0;
-	++fmt;
-	switch (c) {
-	case 'd':
-	    i = va_arg(args, int);
-	    if (i < 0) {
-		neg = 1;
-		val = -i;
-	    } else
-		val = i;
-	    base = 10;
-	    break;
-	case 'o':
-	    val = va_arg(args, unsigned int);
-	    base = 8;
-	    break;
-	case 'x':
-	case 'X':
-	    val = va_arg(args, unsigned int);
-	    base = 16;
-	    break;
-	case 'p':
-	    val = (unsigned long) va_arg(args, void *);
-	    base = 16;
-	    neg = 2;
-	    break;
-	case 's':
-	    str = va_arg(args, char *);
-	    break;
-	case 'c':
-	    num[0] = va_arg(args, int);
-	    num[1] = 0;
-	    str = num;
-	    break;
-	default:
-	    *buf++ = '%';
-	    if (c != '%')
-		--fmt;		/* so %z outputs %z etc. */
-	    --buflen;
-	    continue;
-	}
-	if (base != 0) {
-	    str = num + sizeof(num);
-	    *--str = 0;
-	    while (str > num + neg) {
-		*--str = hexchars[val % base];
-		val = val / base;
-		if (--prec <= 0 && val == 0)
-		    break;
-	    }
-	    switch (neg) {
-	    case 1:
-		*--str = '-';
-		break;
-	    case 2:
-		*--str = 'x';
-		*--str = '0';
-		break;
-	    }
-	    len = num + sizeof(num) - 1 - str;
-	} else {
-	    len = strlen(str);
-	    if (prec > 0 && len > prec)
-		len = prec;
-	}
-	if (width > 0) {
-	    if (width > buflen)
-		width = buflen;
-	    if ((n = width - len) > 0) {
-		buflen -= n;
-		for (; n > 0; --n)
-		    *buf++ = fillch;
-	    }
-	}
-	if (len > buflen)
-	    len = buflen;
-	memcpy(buf, str, len);
-	buf += len;
-	buflen -= len;
+  union {
+    unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */
+    FILETIME ft;
+  }  _now;
+
+  if(tp)
+    {
+      GetSystemTimeAsFileTime (&_now.ft);
+      tp->tv_usec=(long)((_now.ns100 / 10ULL) % 1000000ULL );
+      tp->tv_sec= (long)((_now.ns100 - _W32_FT_OFFSET) / 10000000ULL);
     }
-    *buf = 0;
-    return buf - buf0;
+  /* Always return 0 as per Open Group Base Specifications Issue 6.
+     Do not set errno on error.  */
+  return 0;
 }
+#endif /* _WIN32 */
 
-void qemu_vprintf(const char *fmt, va_list ap)
-{
-    char buf[1024];
-    int len;
-
-    len = qemu_vsnprintf(buf, sizeof(buf), fmt, ap);
-    qemu_write(1, buf, len);
-}
-
-void qemu_printf(const char *fmt, ...)
-{
-    va_list ap;
-    va_start(ap, fmt);
-    qemu_vprintf(fmt, ap);
-    va_end(ap);
-}