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update bootimage instructions in readme.txt

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This commit is contained in:
Joel Dice 2011-09-20 20:03:16 -06:00
parent 559af69269
commit 70c65c7053
1 changed files with 29 additions and 7 deletions
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readme.txt
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@ -329,8 +329,9 @@ Embedding
The following series of commands illustrates how to produce a The following series of commands illustrates how to produce a
stand-alone executable out of a Java application using Avian. stand-alone executable out of a Java application using Avian.
Note: if you are building on Cygwin, add -mno-cygwin to each of the Note: if you are building on Cygwin, prepend "x86_64-w64-mingw32-" or
compile and link commands below. "i686-w64-mingw32-" to the ar, g++, gcc, strip, and dlltool commands
below (e.g. x86_64-w64-mingw32-gcc).
Step 1: Build Avian, create a new directory, and populate it with the Step 1: Build Avian, create a new directory, and populate it with the
VM object files and bootstrap classpath jar. VM object files and bootstrap classpath jar.
@ -550,16 +551,22 @@ Step 5: Run ProGuard with stage1 as input and stage2 as output.
(note: pass -dontusemixedcaseclassnames to ProGuard when building on (note: pass -dontusemixedcaseclassnames to ProGuard when building on
systems with case-insensitive filesystems such as Windows and OS X) systems with case-insensitive filesystems such as Windows and OS X)
Step 6: Build the boot image. Step 6: Build the boot and code images.
$ ../build/linux-i386-bootimage/bootimage-generator stage2 bootimage.bin $ ../build/linux-i386-bootimage/bootimage-generator stage2 \
bootimage.bin codeimage.bin
Step 7: Make an object file out of the boot image. Step 7: Make an object file out of the boot and code images.
$ ../build/linux-i386-bootimage/binaryToObject \ $ ../build/linux-i386-bootimage/binaryToObject \
bootimage.bin bootimage-bin.o \ bootimage.bin bootimage-bin.o \
_binary_bootimage_bin_start _binary_bootimage_bin_end \ _binary_bootimage_bin_start _binary_bootimage_bin_end \
linux i386 8 writable executable linux i386 8 writable
$ ../build/linux-i386-bootimage/binaryToObject \
codeimage.bin codeimage-bin.o \
_binary_codeimage_bin_start _binary_codeimage_bin_end \
linux i386 8 executable
Step 8: Write a driver which starts the VM and runs the desired main Step 8: Write a driver which starts the VM and runs the desired main
method. Note the bootimageBin function, which will be called by the method. Note the bootimageBin function, which will be called by the
@ -583,8 +590,10 @@ containing them. See the previous example for instructions.
#if (! defined __x86_64__) && ((defined __MINGW32__) || (defined _MSC_VER)) #if (! defined __x86_64__) && ((defined __MINGW32__) || (defined _MSC_VER))
# define BOOTIMAGE_BIN(x) binary_bootimage_bin_##x # define BOOTIMAGE_BIN(x) binary_bootimage_bin_##x
# define CODEIMAGE_BIN(x) binary_codeimage_bin_##x
#else #else
# define BOOTIMAGE_BIN(x) _binary_bootimage_bin_##x # define BOOTIMAGE_BIN(x) _binary_bootimage_bin_##x
# define CODEIMAGE_BIN(x) _binary_codeimage_bin_##x
#endif #endif
extern "C" { extern "C" {
@ -599,6 +608,16 @@ extern "C" {
return BOOTIMAGE_BIN(start); return BOOTIMAGE_BIN(start);
} }
extern const uint8_t CODEIMAGE_BIN(start)[];
extern const uint8_t CODEIMAGE_BIN(end)[];
EXPORT const uint8_t*
codeimageBin(unsigned* size)
{
*size = CODEIMAGE_BIN(end) - CODEIMAGE_BIN(start);
return CODEIMAGE_BIN(start);
}
} // extern "C" } // extern "C"
int int
@ -606,7 +625,7 @@ main(int ac, const char** av)
{ {
JavaVMInitArgs vmArgs; JavaVMInitArgs vmArgs;
vmArgs.version = JNI_VERSION_1_2; vmArgs.version = JNI_VERSION_1_2;
vmArgs.nOptions = 1; vmArgs.nOptions = 2;
vmArgs.ignoreUnrecognized = JNI_TRUE; vmArgs.ignoreUnrecognized = JNI_TRUE;
JavaVMOption options[vmArgs.nOptions]; JavaVMOption options[vmArgs.nOptions];
@ -615,6 +634,9 @@ main(int ac, const char** av)
options[0].optionString options[0].optionString
= const_cast<char*>("-Davian.bootimage=bootimageBin"); = const_cast<char*>("-Davian.bootimage=bootimageBin");
options[1].optionString
= const_cast<char*>("-Davian.codeimage=codeimageBin");
JavaVM* vm; JavaVM* vm;
void* env; void* env;
JNI_CreateJavaVM(&vm, &env, &vmArgs); JNI_CreateJavaVM(&vm, &env, &vmArgs);