mirror of
https://git.freebsd.org/ports.git
synced 2025-06-03 11:56:28 -04:00
A fast CPU emulator environment. PR: 67506 Submitted by: Juergen Lock <nox@jelal.kn-bremen.de>
365 lines
12 KiB
Text
365 lines
12 KiB
Text
diff -urd --exclude=CVS ../cvs/qemu/Makefile qemu-0.5.5/Makefile
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--- ../cvs/qemu/Makefile Mon May 17 21:06:42 2004
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+++ qemu-0.5.5/Makefile Sun May 30 05:26:19 2004
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@@ -70,7 +70,7 @@
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# documentation
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%.html: %.texi
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- texi2html -monolithic -number $<
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+ -texi2html -monolithic -number $<
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qemu.1: qemu-doc.texi
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./texi2pod.pl $< qemu.pod
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diff -urd --exclude=CVS ../cvs/qemu/block.c qemu-0.5.5/block.c
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--- ../cvs/qemu/block.c Sat May 8 16:27:20 2004
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+++ qemu-0.5.5/block.c Sun May 30 16:36:53 2004
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@@ -27,6 +27,13 @@
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#include <sys/mman.h>
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#endif
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+#ifdef _BSD
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+#include <sys/types.h>
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+#include <sys/stat.h>
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+#include <sys/ioctl.h>
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+#include <sys/disk.h>
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+#endif
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+
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#include "cow.h"
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struct BlockDriverState {
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@@ -81,7 +88,10 @@
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{
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int fd;
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int64_t size;
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- struct cow_header_v2 cow_header;
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+ union {
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+ struct cow_header_v2 cow_header;
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+ uint8_t cow_buffer[2048];
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+ } cow;
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#ifndef _WIN32
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char template[] = "/tmp/vl.XXXXXX";
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int cow_fd;
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@@ -117,15 +127,15 @@
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bs->fd = fd;
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/* see if it is a cow image */
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- if (read(fd, &cow_header, sizeof(cow_header)) != sizeof(cow_header)) {
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+ if (read(fd, &cow.cow_header, sizeof(cow)) != sizeof(cow)) {
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fprintf(stderr, "%s: could not read header\n", filename);
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goto fail;
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}
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#ifndef _WIN32
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- if (be32_to_cpu(cow_header.magic) == COW_MAGIC &&
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- be32_to_cpu(cow_header.version) == COW_VERSION) {
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+ if (be32_to_cpu(cow.cow_header.magic) == COW_MAGIC &&
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+ be32_to_cpu(cow.cow_header.version) == COW_VERSION) {
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/* cow image found */
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- size = cow_header.size;
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+ size = cow.cow_header.size;
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#ifndef WORDS_BIGENDIAN
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size = bswap64(size);
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#endif
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@@ -133,34 +143,41 @@
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bs->cow_fd = fd;
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bs->fd = -1;
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- if (cow_header.backing_file[0] != '\0') {
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- if (stat(cow_header.backing_file, &st) != 0) {
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- fprintf(stderr, "%s: could not find original disk image '%s'\n", filename, cow_header.backing_file);
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+ if (cow.cow_header.backing_file[0] != '\0') {
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+ if (stat(cow.cow_header.backing_file, &st) != 0) {
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+ fprintf(stderr, "%s: could not find original disk image '%s'\n", filename, cow.cow_header.backing_file);
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goto fail;
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}
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- if (st.st_mtime != be32_to_cpu(cow_header.mtime)) {
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- fprintf(stderr, "%s: original raw disk image '%s' does not match saved timestamp\n", filename, cow_header.backing_file);
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+ if (st.st_mtime != be32_to_cpu(cow.cow_header.mtime)) {
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+ fprintf(stderr, "%s: original raw disk image '%s' does not match saved timestamp\n", filename, cow.cow_header.backing_file);
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goto fail;
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}
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- fd = open(cow_header.backing_file, O_RDONLY | O_LARGEFILE);
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+ fd = open(cow.cow_header.backing_file, O_RDONLY | O_LARGEFILE);
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if (fd < 0)
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goto fail;
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bs->fd = fd;
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}
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/* mmap the bitmap */
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- bs->cow_bitmap_size = ((bs->total_sectors + 7) >> 3) + sizeof(cow_header);
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+ bs->cow_bitmap_size = ((bs->total_sectors + 7) >> 3) + sizeof(cow.cow_header);
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bs->cow_bitmap_addr = mmap(get_mmap_addr(bs->cow_bitmap_size),
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bs->cow_bitmap_size,
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PROT_READ | PROT_WRITE,
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MAP_SHARED, bs->cow_fd, 0);
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if (bs->cow_bitmap_addr == MAP_FAILED)
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goto fail;
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- bs->cow_bitmap = bs->cow_bitmap_addr + sizeof(cow_header);
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+ bs->cow_bitmap = bs->cow_bitmap_addr + sizeof(cow.cow_header);
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bs->cow_sectors_offset = (bs->cow_bitmap_size + 511) & ~511;
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snapshot = 0;
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} else
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#endif
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{
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+#ifdef _BSD
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+ struct stat sb;
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+ if (!fstat(fd,&sb) && (S_IFCHR & sb.st_mode)) {
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+ if (ioctl(fd, DIOCGMEDIASIZE, (off_t *)&size))
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+ size = lseek(fd, 0LL, SEEK_END);
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+ } else
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+#endif
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/* standard raw image */
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size = lseek64(fd, 0, SEEK_END);
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bs->total_sectors = size / 512;
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Only in qemu-0.5.5: block.c.bck
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diff -urd --exclude=CVS ../cvs/qemu/configure qemu-0.5.5/configure
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--- ../cvs/qemu/configure Thu May 20 14:23:39 2004
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+++ qemu-0.5.5/configure Sun May 30 05:42:05 2004
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@@ -419,9 +419,11 @@
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if [ "$bsd" = "yes" ] ; then
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echo "#define O_LARGEFILE 0" >> $config_h
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echo "#define lseek64 lseek" >> $config_h
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+ echo "#define mkstemp64 mkstemp" >> $config_h
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echo "#define ftruncate64 ftruncate" >> $config_h
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echo "#define MAP_ANONYMOUS MAP_ANON" >> $config_h
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echo "#define _BSD 1" >> $config_h
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+ echo "#define off64_t off_t" >> $config_h
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fi
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for target in $target_list; do
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Only in qemu-0.5.5: qemu.1
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diff -urd --exclude=CVS ../cvs/qemu/target-i386/cpu.h qemu-0.5.5/target-i386/cpu.h
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--- ../cvs/qemu/target-i386/cpu.h Thu May 20 15:01:56 2004
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+++ qemu-0.5.5/target-i386/cpu.h Sun May 30 05:16:10 2004
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@@ -259,7 +259,7 @@
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CC_OP_NB,
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};
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-#if (defined(__i386__) || defined(__x86_64__)) && !defined(_BSD)
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+#if defined(__i386__) || defined(__x86_64__)
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#define USE_X86LDOUBLE
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#endif
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diff -urd --exclude=CVS ../cvs/qemu/target-i386/exec.h qemu-0.5.5/target-i386/exec.h
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--- ../cvs/qemu/target-i386/exec.h Sat May 29 12:08:52 2004
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+++ qemu-0.5.5/target-i386/exec.h Sun May 30 05:19:43 2004
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@@ -293,6 +293,22 @@
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#endif /* !defined(CONFIG_USER_ONLY) */
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+#if defined(_BSD) && defined(USE_X86LDOUBLE)
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+#include <math.h>
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+/*int rintl(long double __x);
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+long int lrintl(long double __x);
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+long long int llrintl(long double __x);
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+long double powl(long double __x, long double __y);
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+long double logl(long double __x);
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+long double tanl(long double __x);
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+long double atan2l(long double __y, long double __x);
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+long double ceill(long double __x);
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+long double floorl(long double __x);
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+long double sqrtl(long double __x);
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+long double sinl(long double __x);
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+long double cosl(long double __x);*/
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+#endif
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+
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#ifdef USE_X86LDOUBLE
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/* use long double functions */
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#define lrint lrintl
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@@ -310,7 +326,7 @@
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#define rint rintl
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#endif
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-#if !defined(_BSD)
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+#if !defined(_BSD) || defined(USE_X86LDOUBLE)
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extern int lrint(CPU86_LDouble x);
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extern int64_t llrint(CPU86_LDouble x);
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#else
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diff -urd --exclude=CVS ../cvs/qemu/target-i386/op.c qemu-0.5.5/target-i386/op.c
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--- ../cvs/qemu/target-i386/op.c Sat May 29 12:08:52 2004
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+++ qemu-0.5.5/target-i386/op.c Sun May 30 05:40:54 2004
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@@ -1304,6 +1304,149 @@
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functions comes from the LGPL'ed x86 emulator found in the Willows
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TWIN windows emulator. */
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+#if defined(_BSD) && defined(USE_X86LDOUBLE)
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+
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+CPU86_LDouble rintl(CPU86_LDouble __x) {
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+ CPU86_LDouble __rintres;
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+ __asm__ __volatile__
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+ ("fistp %0"
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+ : "=m" (__rintres) : "t" (__x) : "st");
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+ return __rintres;
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+}
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+
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+int lrintl(CPU86_LDouble __x) {
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+ int __lrintres;
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+ __asm__ __volatile__
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+ ("fistpl %0"
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+ : "=m" (__lrintres) : "t" (__x) : "st");
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+ return __lrintres;
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+}
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+
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+
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+int64_t llrintl(CPU86_LDouble __x) {
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+ int64_t __llrintres;
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+ __asm__ __volatile__
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+ ("fistpll %0"
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+ : "=m" (__llrintres) : "t" (__x) : "st");
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+ return __llrintres;
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+}
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+
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+CPU86_LDouble powl(CPU86_LDouble __x, CPU86_LDouble __y) {
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+ register CPU86_LDouble __value;
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+ register long double __exponent;
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+ __extension__ long long int __p = (long long int) __y;
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+ if (__x == 0.0)
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+ {
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+ if (__y > 0.0)
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+ return __y == (double) __p && (__p & 1) != 0 ? __x : 0.0;
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+ else if (__y < 0.0)
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+ return (__y == (double) __p && (-__p & 1) != 0
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+ ? 1.0 / __x : 1.0 / fabs (__x));
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+ }
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+ if (__y == (double) __p)
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+ {
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+ long double __r = 1.0;
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+ if (__p == 0)
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+ return 1.0;
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+ if (__p < 0)
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+ {
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+ __p = -__p;
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+ __x = 1.0 / __x;
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+ }
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+ while (1)
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+ {
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+ if (__p & 1)
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+ __r *= __x;
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+ __p >>= 1;
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+ if (__p == 0)
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+ return __r;
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+ __x *= __x;
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+ }
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+ /* NOTREACHED */
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+ }
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+ __asm __volatile__
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+ ("fyl2x" : "=t" (__value) : "0" (__x), "u" (1.0) : "st(1)");
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+ __asm __volatile__
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+ ("fmul %%st(1) # y * log2(x)\n\t"
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+ "fst %%st(1)\n\t"
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+ "frndint # int(y * log2(x))\n\t"
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+ "fxch\n\t"
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+ "fsub %%st(1) # fract(y * log2(x))\n\t"
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+ "f2xm1 # 2^(fract(y * log2(x))) - 1\n\t"
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+ : "=t" (__value), "=u" (__exponent) : "0" (__y), "1" (__value));
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+ __value += 1.0;
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+ __asm __volatile__
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+ ("fscale"
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+ : "=t" (__value) : "0" (__value), "u" (__exponent));
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+ return __value;
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+}
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+
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+CPU86_LDouble logl(CPU86_LDouble __x) {
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+ register CPU86_LDouble __result;
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+ __asm __volatile__ ("fldln2; fxch; fyl2x" : "=t" (__result) : "0" (__x) : "st(1)");
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+ return __result;
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+}
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+
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+CPU86_LDouble tanl(CPU86_LDouble __x) {
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+ register CPU86_LDouble __value;
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+ register CPU86_LDouble __value2 __attribute__ ((__unused__));
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+ __asm __volatile__
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+ ("fptan"
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+ : "=t" (__value2), "=u" (__value) : "0" (__x));
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+ return __value;
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+}
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+
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+CPU86_LDouble atan2l(CPU86_LDouble __y, CPU86_LDouble __x) {
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+ register CPU86_LDouble __value;
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+ __asm __volatile__
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+ ("fpatan"
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+ : "=t" (__value) : "0" (__x), "u" (__y) : "st(1)");
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+ return __value;
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+}
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+
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+CPU86_LDouble ceill(CPU86_LDouble __x) {
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+ register CPU86_LDouble __value;
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+ __volatile unsigned short int __cw;
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+ __volatile unsigned short int __cwtmp;
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+ __asm __volatile ("fnstcw %0" : "=m" (__cw));
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+ __cwtmp = (__cw & 0xf3ff) | 0x0800; /* rounding up */
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+ __asm __volatile ("fldcw %0" : : "m" (__cwtmp));
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+ __asm __volatile ("frndint" : "=t" (__value) : "0" (__x));
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+ __asm __volatile ("fldcw %0" : : "m" (__cw));
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+ return __value;
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+}
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+
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+CPU86_LDouble floorl(CPU86_LDouble __x) {
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+ register CPU86_LDouble __value;
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+ __volatile unsigned short int __cw;
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+ __volatile unsigned short int __cwtmp;
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+ __asm __volatile ("fnstcw %0" : "=m" (__cw));
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+ __cwtmp = (__cw & 0xf3ff) | 0x0400; /* rounding down */
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+ __asm __volatile ("fldcw %0" : : "m" (__cwtmp));
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+ __asm __volatile ("frndint" : "=t" (__value) : "0" (__x));
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+ __asm __volatile ("fldcw %0" : : "m" (__cw));
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+ return __value;
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+}
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+
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+CPU86_LDouble sqrtl(CPU86_LDouble __x) {
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+ register CPU86_LDouble __result;
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+ __asm __volatile__ ("fsqrt" : "=t" (__result) : "0" (__x));
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+ return __result;
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+}
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+
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+CPU86_LDouble sinl(CPU86_LDouble __x) {
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+ register CPU86_LDouble __result;
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+ __asm __volatile__ ("fsin" : "=t" (__result) : "0" (__x));
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+ return __result;
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+}
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+
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+CPU86_LDouble cosl(CPU86_LDouble __x) {
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+ register CPU86_LDouble __result;
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+ __asm __volatile__ ("fcos" : "=t" (__result) : "0" (__x));
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+ return __result;
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+}
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+#endif
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+
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#if defined(__powerpc__)
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extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble);
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diff -urd --exclude=CVS ../cvs/qemu/vl.c qemu-0.5.5/vl.c
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--- ../cvs/qemu/vl.c Wed May 26 23:12:06 2004
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+++ qemu-0.5.5/vl.c Sun May 30 05:30:56 2004
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@@ -662,6 +662,14 @@
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case QEMU_TIMER_REALTIME:
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#ifdef _WIN32
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return GetTickCount();
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+#elif defined(_BSD)
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+ {
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+ struct timeval r;
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+ if (!gettimeofday(&r, NULL)) {
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+ return ((CLK_TCK * 1000LL) * (int64_t)r.tv_sec
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+ + ((int64_t)r.tv_usec * CLK_TCK) / 1000) / timer_freq;
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+ }
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+ }
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#else
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{
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struct tms tp;
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@@ -828,6 +836,7 @@
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the emulated kernel requested a too high timer frequency */
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getitimer(ITIMER_REAL, &itv);
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+#if defined(__linux__)
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if (itv.it_interval.tv_usec > 1000) {
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/* try to use /dev/rtc to have a faster timer */
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if (start_rtc_timer() < 0)
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@@ -843,7 +852,9 @@
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sigaction(SIGIO, &act, NULL);
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fcntl(rtc_fd, F_SETFL, O_ASYNC);
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fcntl(rtc_fd, F_SETOWN, getpid());
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- } else {
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+ } else
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+#endif
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+ {
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use_itimer:
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pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec *
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PIT_FREQ) / 1000000;
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