Difference between revisions of "Toro Kernel"

Revision as of 07:42, 24 August 2019

A dedicated kernel for multi-threading applications

It's possible to develop Toro Kernel microservices on Windows.

the project contain "build" utility complication as well. The utiltiy produces an image from the resulting .elf file

qemu-system-x86_64 -hda HelloWorldMicroservice.img

One might find the script files to build the Qemu recognizable image file formats: BuildVHDX.cmd and/or BuildVMDK.cmd

QEmu provides a built-in support for GDB remote debuggin

run QEmu with enabling gdb (-s) and also requesting the QEmu to halt until getting the "continue" signal from gdb (-S)

qemu-system-x86_64 -s -S -hda HelloWorldMicroservice.img

The expected result is that Qemu window will halt with the message that "vga" system has not been initialized yet (and doing nothing)

-s - configures the default remote GDB mode for the use of TCP socket for port 1234

run the debugger, and provide the previously complied binary file as its gdb target. (The file is needed to load debugging information)

gdb HelloWorldMicroservice

(gdb)> target remote localhost:1234

The command makes gdb connect to the specified address. In which case this would be Qemu running locally at port 1234.

The debugging information in the compiled binary contains the information necessary to work with binary during debugging.

Example

(gdb)> b HelloWorldMicroservice.pas:250

sets a breakpoint HelloWorldMicroservice at the line that outputs "ToroService: listening on port xxxx ..."

(gdb)> continue

@@ Line 4: / Line 4: @@
 ===Building===
 * you'll need to have cross-compile linux binary utils
-:those could be acquired from fpcup or fpcupdeluxe
+:those could be acquired from fpcup or fpcupdeluxe (https://github.com/LongDirtyAnimAlf/fpcupdeluxe/releases/download/crosslibs_v1.1/CrossLibsLinuxx64.zip)
 * the project contain "build" utility complication as well. The utiltiy produces an image from the resulting .elf file
 ===Running QEMU===
 * install QEmu for Windows