sds prelim work

kernel/src/holeybytes/ecah.rs

@@ -1,6 +1,14 @@
 //! Environment call handling routines
 
-use crate::allocator;
+use core::borrow::Borrow;
+
+use crate::{
+    allocator,
+    holeybytes::kernel_services::{
+        block_read,
+        service_definition_service::{sds_msg_handler, SERVICES},
+    },
+};
 
 use {
     super::{mem::Memory, Vm},
@@ -68,6 +76,10 @@ pub fn handler(vm: &mut Vm) {
             use alloc::vec::Vec;
 
             match buffer_id {
+                0 => match sds_msg_handler(vm, mem_addr, length) {
+                    Ok(()) => {}
+                    Err(err) => log::error!("Improper sds format"),
+                },
                 1 => match log_msg_handler(vm, mem_addr, length) {
                     Ok(()) => {}
                     Err(err) => log::error!("Improper log format"),
@@ -137,14 +149,8 @@ pub fn handler(vm: &mut Vm) {
 fn log_msg_handler(vm: &mut Vm, mem_addr: u64, length: usize) -> Result<(), LogError> {
     // let message_length = 8 + 8 + 8;
     // log::info!("Mem Addr 0x{:x?} length {}", mem_addr, length);
-    let mut msg_vec = vec![];
+    let mut msg_vec = block_read(mem_addr, length);
 
-    for x in 0..(length as isize) {
-        let xyz = mem_addr as *const u8;
-        let value = unsafe { xyz.offset(x).read() };
-        // info!("{} - 0x{:x?} - {}", value, value, value as char);
-        msg_vec.push(value);
-    }
     let log_level = msg_vec.pop().unwrap();
     match String::from_utf8(msg_vec) {
         Ok(strr) => {

kernel/src/holeybytes/kernel_services/mem_serve.rs

@@ -1,5 +1,9 @@
 use {
-    crate::holeybytes::{ecah::LogError, kernel_services::mem_serve, Vm},
+    crate::holeybytes::{
+        ecah::LogError,
+        kernel_services::{block_read, mem_serve},
+        Vm,
+    },
     log::info,
 };
 
@@ -23,19 +27,8 @@ pub fn memory_msg_handler(
     mem_addr: u64,
     length: usize,
 ) -> Result<(), MemoryServiceError> {
-    let msg_type = (mem_addr) as *const u8;
+    let mut msg_vec = block_read(mem_addr, length);
-    // info!("memory message type {:?}", unsafe { msg_type.read() });
 
-    let ptr = (mem_addr + 1) as *const u64;
-    // info!("ptr: {:x?}", unsafe { ptr.read() });
-
-    let page_count_addr = (mem_addr + 9) as *const u8;
-    // let page_count = unsafe { page_count_addr.read() };
-    // info!("page count {}", page_count);
-    // if page_count > 16 {
-    // use log::error;
-    // error!("Map less pages at a time");
-    // }
     Ok(())
 }
 

kernel/src/holeybytes/kernel_services/mod.rs

@@ -1 +1,15 @@
+use alloc::{vec, vec::Vec};
+
 pub mod mem_serve;
+pub mod service_definition_service;
+
+pub fn block_read(mem_addr: u64, length: usize) -> Vec<u8> {
+    let mut msg_vec = vec![];
+
+    for x in 0..(length as isize) {
+        let xyz = mem_addr as *const u8;
+        let value = unsafe { xyz.offset(x).read() };
+        msg_vec.push(value);
+    }
+    msg_vec
+}

kernel/src/holeybytes/kernel_services/service_definition_service.rs

@@ -0,0 +1,30 @@
+use {
+    crate::{
+        alloc::string::ToString,
+        holeybytes::{ecah::LogError, kernel_services::block_read, Vm},
+    },
+    alloc::string::String,
+    hashbrown::HashMap,
+    log::info,
+    spin::{lazy::Lazy, Mutex},
+};
+
+pub struct Services(HashMap<u64, String>);
+
+pub static SERVICES: Lazy<Mutex<Services>> = Lazy::new(|| {
+    let mut dt = Services(HashMap::new());
+    dt.0.insert(0, "SDS".to_string());
+    info!("test");
+    Mutex::new(dt)
+});
+
+pub fn sds_msg_handler(vm: &mut Vm, mem_addr: u64, length: usize) -> Result<(), LogError> {
+    let mut msg_vec = block_read(mem_addr, length);
+    let buffer_id_raw = &msg_vec[0..8];
+    let mut arr = [0u8; 8];
+    arr.copy_from_slice(&buffer_id_raw);
+    let buffer_id = u64::from_le_bytes(arr);
+    info!("BufferID({:x?})", buffer_id);
+
+    Ok(())
+}

kernel/src/holeybytes/mem.rs

@@ -39,6 +39,7 @@ impl hbvm::mem::Memory for Memory {
     ) -> Result<(), hbvm::mem::LoadError> {
         use log::{error, info};
         if addr.get() % 4096 == 0 {}
+        info!("a");
         core::ptr::copy(addr.get() as *const u8, target, count);
         Ok(())
     }
@@ -50,8 +51,6 @@ impl hbvm::mem::Memory for Memory {
         source: *const u8,
         count: usize,
     ) -> Result<(), hbvm::mem::StoreError> {
-        // log::info!("Storing memory");
-
         core::ptr::copy(source, addr.get() as *mut u8, count);
         Ok(())
     }

kernel/src/kmain.rs

@@ -2,7 +2,7 @@
 
 use {
     crate::{
-        arch::hardware_random_u64,
+        arch::{hardware_random_u64, logging::SERIAL_CONSOLE},
         bootmodules::{build_cmd, BootModules},
         capabilities,
         device_tree::DeviceTree,

repbuild/src/main.rs

@@ -268,6 +268,7 @@ TERM_BACKDROP={}
         "target/test-programs/main.hbf",
         "target/test-programs/serial_driver.hbf",
         "target/test-programs/vfs_test.hbf",
+        "target/test-programs/sds_test.hbf",
         "target/test-programs/limine_framebuffer_driver.hbf",
         "target/test-programs/keyboard_driver.hbf",
     ] {

sysdata/protocol.idl

@@ -0,0 +1,5 @@
+type BufferID = u64;
+
+protocol SDS {
+    fn register_protocol(BufferID, String) -> bool;
+}

sysdata/system_config.toml

@@ -25,6 +25,10 @@ cmd_line = ""
 path = "boot:///ecall.hbf"
 cmd_line = ""
 
+[boot.limine.ableos.modules.sds_test]
+path = "boot:///sds_test.hbf"
+cmd_line = ""
+
 [boot.limine.ableos.modules.main]
 path = "boot:///main.hbf"
 cmd_line = ""

sysdata/test-programs/sds_test.rhai

@@ -0,0 +1,16 @@
+fn set_buffer_protocol(buffer_id, string) {
+    let str = data::str("01234567" + string);
+    li64(r10, buffer_id);
+    str(r10, r0, str, 8);
+
+    li64(r1, 3);
+    li64(r2, 0);
+    lra(r3, r0, str);
+    li64(r4, str.len);
+    eca();
+}
+
+
+set_buffer_protocol(1, "string");
+
+tx();