linux_user="no"
darwin_user="no"
bsd_user="no"
+guest_base="no"
build_docs="no"
uname_release=""
curses="yes"
;;
--enable-bsd-user) bsd_user="yes"
;;
+ --enable-guest-base) guest_base="yes"
+ ;;
--enable-uname-release=*) uname_release="$optarg"
;;
--sparc_cpu=*)
echo " --disable-darwin-user disable all darwin usermode emulation targets"
echo " --enable-bsd-user enable all BSD usermode emulation targets"
echo " --disable-bsd-user disable all BSD usermode emulation targets"
+echo " --enable-guest-base enable GUEST_BASE support for usermode"
+echo " emulation targets"
echo " --fmod-lib path to FMOD library"
echo " --fmod-inc path to FMOD includes"
echo " --oss-lib path to OSS library"
fi
fi
-#
+##########################################
# Check for xxxat() functions when we are building linux-user
# emulator. This is done because older glibc versions don't
# have syscall stubs for these implemented. In that case we
binsuffix="/bin"
fi
-echo "Install prefix $prefix"
-echo "BIOS directory $prefix$datasuffix"
-echo "binary directory $prefix$binsuffix"
+echo "Install prefix $prefix"
+echo "BIOS directory $prefix$datasuffix"
+echo "binary directory $prefix$binsuffix"
if test "$mingw32" = "no" ; then
-echo "Manual directory $prefix$mansuffix"
-echo "ELF interp prefix $interp_prefix"
-fi
-echo "Source path $source_path"
-echo "C compiler $cc"
-echo "Host C compiler $host_cc"
-echo "ARCH_CFLAGS $ARCH_CFLAGS"
-echo "make $make"
-echo "install $install"
-echo "host CPU $cpu"
-echo "host big endian $bigendian"
-echo "target list $target_list"
-echo "gprof enabled $gprof"
-echo "sparse enabled $sparse"
-echo "profiler $profiler"
-echo "static build $static"
-echo "-Werror enabled $werror"
+echo "Manual directory $prefix$mansuffix"
+echo "ELF interp prefix $interp_prefix"
+fi
+echo "Source path $source_path"
+echo "C compiler $cc"
+echo "Host C compiler $host_cc"
+echo "ARCH_CFLAGS $ARCH_CFLAGS"
+echo "make $make"
+echo "install $install"
+echo "host CPU $cpu"
+echo "host big endian $bigendian"
+echo "target list $target_list"
+echo "gprof enabled $gprof"
+echo "sparse enabled $sparse"
+echo "profiler $profiler"
+echo "static build $static"
+echo "-Werror enabled $werror"
if test "$darwin" = "yes" ; then
- echo "Cocoa support $cocoa"
+ echo "Cocoa support $cocoa"
fi
-echo "SDL support $sdl"
+echo "SDL support $sdl"
if test "$sdl" != "no" ; then
- echo "SDL static link $sdl_static"
-fi
-echo "curses support $curses"
-echo "atfile support $atfile"
-echo "mingw32 support $mingw32"
-echo "Audio drivers $audio_drv_list"
-echo "Extra audio cards $audio_card_list"
-echo "Mixer emulation $mixemu"
-echo "VNC TLS support $vnc_tls"
+ echo "SDL static link $sdl_static"
+fi
+echo "curses support $curses"
+echo "atfile support $atfile"
+echo "mingw32 support $mingw32"
+echo "Audio drivers $audio_drv_list"
+echo "Extra audio cards $audio_card_list"
+echo "Mixer emulation $mixemu"
+echo "VNC TLS support $vnc_tls"
if test "$vnc_tls" = "yes" ; then
- echo " TLS CFLAGS $vnc_tls_cflags"
- echo " TLS LIBS $vnc_tls_libs"
+ echo " TLS CFLAGS $vnc_tls_cflags"
+ echo " TLS LIBS $vnc_tls_libs"
fi
if test -n "$sparc_cpu"; then
- echo "Target Sparc Arch $sparc_cpu"
+ echo "Target Sparc Arch $sparc_cpu"
fi
-echo "kqemu support $kqemu"
-echo "brlapi support $brlapi"
-echo "Documentation $build_docs"
+echo "kqemu support $kqemu"
+echo "brlapi support $brlapi"
+echo "Documentation $build_docs"
[ ! -z "$uname_release" ] && \
-echo "uname -r $uname_release"
-echo "NPTL support $nptl"
-echo "vde support $vde"
-echo "AIO support $aio"
-echo "Install blobs $blobs"
-echo "KVM support $kvm"
-echo "fdt support $fdt"
+echo "uname -r $uname_release"
+echo "NPTL support $nptl"
+echo "vde support $vde"
+echo "AIO support $aio"
+echo "Install blobs $blobs"
+echo "KVM support $kvm"
+echo "fdt support $fdt"
+echo "GUEST_BASE support $guest_base"
if test $sdl_too_old = "yes"; then
echo "-> Your SDL version is too old - please upgrade to have SDL support"
echo "TARGET_HAS_ELFLOAD32=yes" >> $config_mak
echo "#define TARGET_HAS_ELFLOAD32 1" >> $config_h
fi
+if test "$target_user_only" = "yes" -a "$guest_base" = "yes"; then
+ echo "#define CONFIG_USE_GUEST_BASE 1" >> $config_h
+fi
if test "$target_bsd_user" = "yes" ; then
echo "CONFIG_BSD_USER=yes" >> $config_mak
echo "#define CONFIG_BSD_USER 1" >> $config_h
/* On some host systems the guest address space is reserved on the host.
* This allows the guest address space to be offset to a convenient location.
*/
-//#define GUEST_BASE 0x20000000
+#if defined(CONFIG_USE_GUEST_BASE)
+extern unsigned long guest_base;
+#define GUEST_BASE guest_base
+#else
#define GUEST_BASE 0
+#endif
/* All direct uses of g2h and h2g need to go away for usermode softmmu. */
#define g2h(x) ((void *)((unsigned long)(x) + GUEST_BASE))
+qemu (0.10.0-0maemo1) unstable; urgency=low
+
+ * New upstream version
+ * merge maemo patches
+
+ -- Riku Voipio <riku.voipio@iki.fi> Thu, 05 Mar 2009 11:50:07 +0200
+
qemu (0.9.1+svn20090113-0maemo1) unstable; urgency=low
* maemo patched version
info->mmap = 0;
elf_entry = (abi_ulong) elf_ex.e_entry;
+#if defined(CONFIG_USE_GUEST_BASE)
+ /*
+ * In case where user has not explicitly set the guest_base, we
+ * probe here that should we set it automatically.
+ */
+ if (guest_base == 0) {
+ /*
+ * Go through ELF program header table and find out whether
+ * any of the segments drop below our current mmap_min_addr and
+ * in that case set guest_base to corresponding address.
+ */
+ for (i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum;
+ i++, elf_ppnt++) {
+ if (elf_ppnt->p_type != PT_LOAD)
+ continue;
+ if (HOST_PAGE_ALIGN(elf_ppnt->p_vaddr) < mmap_min_addr) {
+ guest_base = HOST_PAGE_ALIGN(mmap_min_addr);
+ qemu_log("setting guest_base=0x%lx\n", guest_base);
+ break;
+ }
+ }
+ }
+#endif /* CONFIG_USE_GUEST_BASE */
+
/* Do this so that we can load the interpreter, if need be. We will
change some of these later */
info->rss = 0;
#define DEBUG_LOGFILE "/tmp/qemu.log"
-char *exec_path;
+const char *exec_path;
+
+#if defined(CONFIG_USE_GUEST_BASE)
+unsigned long mmap_min_addr = 0;
+unsigned long guest_base = 0;
+#endif
static const char *interp_prefix = CONFIG_QEMU_PREFIX;
const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
"-E var=value sets/modifies targets environment variable(s)\n"
"-U var unsets targets environment variable(s)\n"
"-0 argv0 forces target process argv[0] to be argv0\n"
+#if defined(CONFIG_USE_GUEST_BASE)
+ "-B address set guest_base address to address\n"
+#endif
"\n"
"Debug options:\n"
"-d options activate log (logfile=%s)\n"
"Environment variables:\n"
"QEMU_STRACE Print system calls and arguments similar to the\n"
" 'strace' program. Enable by setting to any value.\n"
+ "\n"
"You can use -E and -U options to set/unset environment variables\n"
"for target process. It is possible to provide several variables\n"
"by repeating the option. For example:\n"
" -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
"Note that if you provide several changes to single variable\n"
"last change will stay in effect.\n"
+#if defined(CONFIG_USE_GUEST_BASE)
+ "\n"
+ "You can use -B option to load target binary into different\n"
+ "address that is specified in elf headers. This can be useful\n"
+ "when target binary would be loaded to low addresses and\n"
+ "/proc/sys/vm/mmap_min_addr is set to higher. For example\n"
+ " qemu-" TARGET_ARCH " -B 0x100000 ...\n"
+ "loads target binary starting from the first meg.\n"
+#endif
,
TARGET_ARCH,
interp_prefix,
int main(int argc, char **argv, char **envp)
{
- char *filename = NULL;
+ const char *filename = NULL;
const char *cpu_model;
struct target_pt_regs regs1, *regs = ®s1;
struct image_info info1, *info = &info1;
#endif
exit(1);
}
+#if defined(CONFIG_USE_GUEST_BASE)
+ } else if (!strcmp(r, "B")) {
+ guest_base = strtol(argv[optind++], NULL, 0);
+#endif
} else if (!strcmp(r, "drop-ld-preload")) {
drop_ld_preload = 1;
} else if (!strcmp(r, "keep-ld-preload")) {
target_environ = envlist_to_environ(envlist, NULL);
envlist_free(envlist);
+#if defined(CONFIG_USE_GUEST_BASE)
+ /*
+ * Now that page sizes are configured in cpu_init() we can do
+ * proper page alignment for guest_base.
+ */
+ guest_base = HOST_PAGE_ALIGN(guest_base);
+
+ /*
+ * Read in mmap_min_addr kernel parameter and check
+ * whether it is set to some value > 0. This value is used
+ * later on when doing mmap(2)s to calculate where guest_base
+ * is to set, if needed.
+ *
+ * When user has explicitly set the quest base, we skip this
+ * test.
+ */
+ if (guest_base == 0) {
+ FILE *fp;
+
+ if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
+ unsigned long tmp;
+ if (fscanf(fp, "%lu", &tmp) == 1) {
+ mmap_min_addr = tmp;
+ if (loglevel) {
+ (void) fprintf(logfile, "kernel mmap_min_addr=%lu\n",
+ mmap_min_addr);
+ }
+ }
+ fclose(fp);
+ }
+ }
+#endif /* CONFIG_USE_GUEST_BASE */
+
/*
* Prepare copy of argv vector for target.
*/
free(target_environ);
if (qemu_log_enabled()) {
+#if defined(CONFIG_USE_GUEST_BASE)
+ if (guest_base > 0) {
+ qemu_log("guest_base is set to 0x%lx\n", guest_base);
+ qemu_log(
+ "==========================================================\n"
+ "Note that all target addresses below are given in target\n"
+ "address space which is different from host by guest_base.\n"
+ "For example: target address 0x%x becomes 0x%x and so on.\n"
+ "==========================================================\n",
+ (uintptr_t)0x8000, (uintptr_t)g2h(0x8000));
+ }
+#endif
log_page_dump();
qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
uint8_t stack[0];
} __attribute__((aligned(16))) TaskState;
-extern char *exec_path;
+extern const char *exec_path;
void init_task_state(TaskState *ts);
extern const char *qemu_uname_release;
+#if defined(CONFIG_USE_GUEST_BASE)
+extern unsigned long mmap_min_addr;
+#endif
/* ??? See if we can avoid exposing so much of the loader internals. */
/*
}
}
+ *raddr = h2g(*raddr);
+
mmap_unlock();
return 0;
}
/* add x(r1), r0 */
tcg_out_modrm_offset(s, 0x03, r0, r1, offsetof(CPUTLBEntry, addend) -
offsetof(CPUTLBEntry, addr_read));
+#elif defined(CONFIG_USE_GUEST_BASE)
+ /*
+ * Add guest_base to all loads.
+ */
+ tcg_out_mov(s, r0, addr_reg); /* movl addr_reg, r0 */
+ tcg_out_addi(s, r0, GUEST_BASE); /* addl $GUEST_BASE, r0 */
#else
r0 = addr_reg;
#endif
/* add x(r1), r0 */
tcg_out_modrm_offset(s, 0x03, r0, r1, offsetof(CPUTLBEntry, addend) -
offsetof(CPUTLBEntry, addr_write));
+#elif defined(CONFIG_USE_GUEST_BASE)
+ /*
+ * Add guest_base to all stores.
+ */
+ tcg_out_mov(s, r0, addr_reg); /* movl addr_reg, r0 */
+ tcg_out_addi(s, r0, GUEST_BASE); /* addl $GUEST_BASE, r0 */
#else
r0 = addr_reg;
#endif
/* add x(r1), r0 */
tcg_out_modrm_offset(s, 0x03 | P_REXW, r0, r1, offsetof(CPUTLBEntry, addend) -
offsetof(CPUTLBEntry, addr_read));
+#elif defined(CONFIG_USE_GUEST_BASE)
+ /*
+ * Add guest_base to all loads.
+ */
+ tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg); /* movq addr_reg, r0 */
+ tcg_out_addi(s, r0, GUEST_BASE); /* addq $GUEST_BASE, r0 */
#else
r0 = addr_reg;
#endif
/* add x(r1), r0 */
tcg_out_modrm_offset(s, 0x03 | P_REXW, r0, r1, offsetof(CPUTLBEntry, addend) -
offsetof(CPUTLBEntry, addr_write));
+#elif defined(CONFIG_USE_GUEST_BASE)
+ /*
+ * Add guest_base to all stores.
+ */
+ tcg_out_modrm(s, 0x8b | rexw, r0, addr_reg); /* movq addr_reg, r0 */
+ tcg_out_addi(s, r0, GUEST_BASE); /* addq $GUEST_BASE, r0 */
#else
r0 = addr_reg;
#endif
projects / qemu / commitdiff