Add the rust std as a custom sysroot

library/.gitignore

@@ -0,0 +1,22 @@
+Cargo.lock
+Cargo.toml
+alloctests
+backtrace
+compiler-builtins
+core
+coretests
+panic_abort
+panic_unwind
+portable-simd
+proc_macro
+profiler_builtins
+rustc-std-workspace-alloc
+rustc-std-workspace-core
+rustc-std-workspace-std
+std_detect
+stdarch
+sysroot
+target
+test
+unwind
+windows_link

library/justfile

@@ -0,0 +1,108 @@
+SRC_DIR := "std/src"
+PATCH_DIR := "std/patches"
+RUST_SRC := `rustc --print sysroot` / "lib/rustlib/src/rust/library"
+ROOT_LINKS := "\
+    Cargo.toml backtrace std_detect panic_abort panic_unwind \
+    windows_link unwind alloc rustc-std-workspace-alloc \
+    rustc-std-workspace-core rustc-std-workspace-std \
+    compiler-builtins core stdarch portable-simd proc_macro \
+    profiler_builtins test coretests alloctests sysroot"
+REAL_CP_FILES := "\
+    sys/args/mod.rs \
+    sys/io/error/mod.rs \
+    sys/pal/mod.rs \
+    sys/random/mod.rs \
+    sys/thread_local/mod.rs"
+STD_FILES := "\
+    alloc.rs ascii.rs backtrace.rs bstr.rs env.rs error.rs fs.rs \
+    keyword_docs.rs lib.rs macros.rs panic.rs panicking.rs pat.rs \
+    path.rs process.rs random.rs rt.rs tests_helpers.rs time.rs \
+    backtrace collections ffi fs hash io net num os/raw/mod.rs \
+    os/raw/tests.rs os/mod.rs prelude process sync sys/alloc/mod.rs \
+    sys/args/unsupported.rs sys/env/mod.rs sys/env/common.rs \
+    sys/env/unsupported.rs sys/fd/mod.rs sys/fs/mod.rs \
+    sys/fs/common.rs sys/fs/unsupported.rs sys/helpers/mod.rs \
+    sys/helpers/small_c_string.rs sys/helpers/tests.rs sys/helpers/wstr.rs \
+    sys/io/error/generic.rs sys/io/io_slice/unsupported.rs \
+    sys/io/is_terminal/unsupported.rs sys/io/kernel_copy/mod.rs \
+    sys/io/mod.rs sys/net/connection/mod.rs sys/net/connection/unsupported.rs \
+    sys/net/hostname/mod.rs sys/net/hostname/unsupported.rs sys/net/mod.rs \
+    sys/os_str/bytes/tests.rs sys/os_str/bytes.rs sys/os_str/mod.rs \
+    sys/pal/unsupported/mod.rs sys/pal/unsupported/common.rs \
+    sys/pal/unsupported/os.rs sys/path/mod.rs sys/path/unix.rs \
+    sys/personality/dwarf/eh.rs sys/personality/dwarf/mod.rs \
+    sys/personality/dwarf/tests.rs sys/personality/mod.rs sys/pipe/mod.rs \
+    sys/pipe/unsupported.rs sys/platform_version/mod.rs sys/process/mod.rs \
+    sys/process/env.rs sys/process/unsupported.rs sys/random/unsupported.rs \
+    sys/stdio/mod.rs sys/stdio/unsupported.rs sys/sync/condvar/mod.rs \
+    sys/sync/condvar/no_threads.rs sys/sync/mutex/mod.rs \
+    sys/sync/mutex/no_threads.rs sys/sync/once/mod.rs \
+    sys/sync/once/no_threads.rs sys/sync/rwlock/mod.rs \
+    sys/sync/rwlock/no_threads.rs sys/sync/thread_parking/mod.rs \
+    sys/sync/thread_parking/unsupported.rs sys/sync/mod.rs \
+    sys/sync/once_box.rs sys/thread/mod.rs sys/thread/unsupported.rs \
+    sys/thread_local/no_threads.rs sys/thread_local/os.rs sys/time/mod.rs \
+    sys/time/unsupported.rs sys/backtrace.rs sys/cmath.rs \
+    sys/configure_builtins.rs sys/env_consts.rs sys/exit.rs sys/mod.rs thread"
+KEEP_FILES := "sys sys/pal sys/pal/survos.rs sys/alloc sys/alloc/survos.rs"
+
+setup-std:
+    @echo "🔗 Linking root directories..."
+    @for dir in {{ ROOT_LINKS }}; do ln -fs {{ RUST_SRC }}/$dir "."; done
+
+    @echo "📂 Processing std/src files..."
+    @for f in {{ STD_FILES }}; do {{ just_executable() }} cp_std $f; done
+    @for f in {{ REAL_CP_FILES }}; do {{ just_executable() }} real_cp_std $f; done
+
+    @{{ just_executable() }} cp_std "../build.rs"
+    @{{ just_executable() }} cp_std "../Cargo.toml"
+    @sed -i '59a\        || target_os == "survos"' std/src/../build.rs
+
+update-std: setup-std patch-std
+
+patch-std:
+    @echo "🛠️ Patching the std..."
+    @find {{ PATCH_DIR }} -type f -name "*.sed" | while read -r patch_file; do \
+        rel="${patch_file#{{ PATCH_DIR }}/}"; \
+        target="{{ SRC_DIR }}/${rel%.sed}.rs"; \
+        if [ -f "$target" ]; then \
+            echo " [SED] ${rel%.sed}.rs"; \
+            sed -i -f "$patch_file" "$target"; \
+        else \
+            echo "⚠ [WARN] target missing: $target"; \
+        fi; \
+    done
+
+build-sysroot:
+    RUSTFLAGS="-Zforce-unstable-if-unmarked -C relocation-model=pic -C link-arg=-pie" \
+    cargo build --package std --target ../riscv64.json --features compiler-builtins-mem
+    mkdir -p ../sysroot/lib/rustlib/riscv64/lib
+    rm -rf ../sysroot/lib/rustlib/riscv64/lib/*
+    cp target/riscv64/debug/deps/*.rlib ../sysroot/lib/rustlib/riscv64/lib
+
+clean:
+    cargo clean
+    rm -rf ../sysroot/lib/rustlib/riscv64/lib/*
+    @for item in $(find library/std/src); do \
+        basename_item=$(basename "$item"); \
+        keep=0; \
+        for protected in {{ KEEP_FILES }}; do \
+            echo $basename_item = $protected; \
+            if [ "$basename_item" = "$protected" ]; then keep=1; break; fi; \
+        done; \
+        if [ "$keep" -eq 0 ]; then \
+            rm -rf "$item"; \
+        fi; \
+    done
+    rm -f std/build.rs std/Cargo.toml Cargo.toml
+    @for item in {{ ROOT_LINKS }}; do rm -rf $item; done
+
+# --- Helpers ---
+
+cp_std path:
+    @mkdir -p {{ SRC_DIR / parent_directory(path) }}
+    @ln -fs {{ RUST_SRC / "std/src" / path }} {{ parent_directory(SRC_DIR / path) }}
+
+real_cp_std path:
+    @mkdir -p {{ SRC_DIR / parent_directory(path) }}
+    @cp -r {{ RUST_SRC / "std/src" / path }} {{ SRC_DIR / path }}

library/std/.gitignore

@@ -0,0 +1,146 @@
+Cargo.lock
+Cargo.toml
+build.rs
+target
+src/random.rs
+src/num
+src/prelude
+src/sync
+src/fs.rs
+src/alloc.rs
+src/process
+src/backtrace.rs
+src/ascii.rs
+src/bstr.rs
+src/thread
+src/keyword_docs.rs
+src/tests_helpers.rs
+src/error.rs
+src/net
+src/rt.rs
+src/sys/args
+src/sys/args/mod.rs
+src/sys/args/unsupported.rs
+src/sys/thread_local
+src/sys/thread_local/os.rs
+src/sys/thread_local/no_threads.rs
+src/sys/thread_local/mod.rs
+src/sys/platform_version
+src/sys/platform_version/mod.rs
+src/sys/personality
+src/sys/personality/dwarf
+src/sys/personality/dwarf/eh.rs
+src/sys/personality/dwarf/mod.rs
+src/sys/personality/dwarf/tests.rs
+src/sys/personality/mod.rs
+src/sys/pal/mod.rs
+src/sys/pal/unsupported
+src/sys/pal/unsupported/os.rs
+src/sys/pal/unsupported/mod.rs
+src/sys/pal/unsupported/common.rs
+src/sys/sync
+src/sys/sync/condvar
+src/sys/sync/condvar/no_threads.rs
+src/sys/sync/condvar/mod.rs
+src/sys/sync/mutex
+src/sys/sync/mutex/no_threads.rs
+src/sys/sync/mutex/mod.rs
+src/sys/sync/once_box.rs
+src/sys/sync/rwlock
+src/sys/sync/rwlock/no_threads.rs
+src/sys/sync/rwlock/mod.rs
+src/sys/sync/mod.rs
+src/sys/sync/thread_parking
+src/sys/sync/thread_parking/mod.rs
+src/sys/sync/thread_parking/unsupported.rs
+src/sys/sync/once
+src/sys/sync/once/no_threads.rs
+src/sys/sync/once/mod.rs
+src/sys/fd
+src/sys/fd/mod.rs
+src/sys/process
+src/sys/process/mod.rs
+src/sys/process/env.rs
+src/sys/process/unsupported.rs
+src/sys/pipe
+src/sys/pipe/mod.rs
+src/sys/pipe/unsupported.rs
+src/sys/env_consts.rs
+src/sys/backtrace.rs
+src/sys/exit.rs
+src/sys/thread
+src/sys/thread/mod.rs
+src/sys/thread/unsupported.rs
+src/sys/env
+src/sys/env/mod.rs
+src/sys/env/common.rs
+src/sys/env/unsupported.rs
+src/sys/net
+src/sys/net/hostname
+src/sys/net/hostname/mod.rs
+src/sys/net/hostname/unsupported.rs
+src/sys/net/mod.rs
+src/sys/net/connection
+src/sys/net/connection/mod.rs
+src/sys/net/connection/unsupported.rs
+src/sys/path
+src/sys/path/mod.rs
+src/sys/path/unix.rs
+src/sys/configure_builtins.rs
+src/sys/mod.rs
+src/sys/time
+src/sys/time/mod.rs
+src/sys/time/unsupported.rs
+src/sys/stdio
+src/sys/stdio/mod.rs
+src/sys/stdio/unsupported.rs
+src/sys/cmath.rs
+src/sys/alloc/mod.rs
+src/sys/helpers
+src/sys/helpers/mod.rs
+src/sys/helpers/wstr.rs
+src/sys/helpers/tests.rs
+src/sys/helpers/small_c_string.rs
+src/sys/fs
+src/sys/fs/mod.rs
+src/sys/fs/common.rs
+src/sys/fs/unsupported.rs
+src/sys/random
+src/sys/random/mod.rs
+src/sys/random/unsupported.rs
+src/sys/io
+src/sys/io/is_terminal
+src/sys/io/is_terminal/unsupported.rs
+src/sys/io/mod.rs
+src/sys/io/io_slice
+src/sys/io/io_slice/unsupported.rs
+src/sys/io/error
+src/sys/io/error/mod.rs
+src/sys/io/error/generic.rs
+src/sys/io/kernel_copy
+src/sys/io/kernel_copy/mod.rs
+src/sys/os_str
+src/sys/os_str/mod.rs
+src/sys/os_str/bytes
+src/sys/os_str/bytes/tests.rs
+src/sys/os_str/bytes.rs
+src/macros.rs
+src/os
+src/os/mod.rs
+src/os/raw
+src/os/raw/mod.rs
+src/os/raw/tests.rs
+src/backtrace
+src/path.rs
+src/lib.rs
+src/process.rs
+src/ffi
+src/env.rs
+src/pat.rs
+src/fs
+src/panic.rs
+src/collections
+src/panicking.rs
+src/time.rs
+src/io
+src/hash

library/std/patches/sys/alloc/mod.sed

@@ -0,0 +1,3 @@
+109a \    target_os = "survos" => { \
+        mod survos; \
+    }

library/std/patches/sys/args/mod.sed

@@ -0,0 +1,4 @@
+# 55a \    target_os = "survos" => { \
+#         mod survos; \
+#         pub use survos::*; \
+#     }

library/std/patches/sys/io/error/mod.sed

@@ -0,0 +1 @@
+45a \        target_os = "survos",

library/std/patches/sys/pal/mod.sed

@@ -0,0 +1,6 @@
+62a \    target_os = "survos" => { \
+        mod unsupported; \
+        pub use self::unsupported::*; \
+        mod survos; \
+        pub use self::survos::*; \
+    }

library/std/patches/sys/random/mod.sed

@@ -0,0 +1,2 @@
+108a \target_os = "survos",
+124a \target_os = "survos",

library/std/patches/sys/thread_local/mod.sed

@@ -0,0 +1,6 @@
+32a \        target_os = "survos",
+
+129a \        target_os = "survos" => { \
+            // todo \
+            pub(crate) fn enable() {} \
+        }

library/std/src/sys/alloc/survos.rs

@@ -0,0 +1,104 @@
+#![allow(fuzzy_provenance_casts)]
+
+use crate::alloc::{GlobalAlloc, Layout, System};
+
+#[stable(feature = "alloc_system_type", since = "1.28.0")]
+unsafe impl GlobalAlloc for System {
+    unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
+        alloc(layout)
+    }
+
+    unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
+        dealloc(ptr, layout)
+    }
+}
+
+#[repr(u64)]
+enum SysCall {
+    Read = 0,
+    Write = 1,
+    Open = 2,
+    Close = 3,
+    Seek = 8,
+    Alloc = 40,
+    Dealloc = 41,
+    Spawn = 58,
+    ExecVE = 59,
+    Exit = 60,
+    NanoSleep = 101,
+    WriteIntTemp = 998,
+    WriteTemp = 999,
+    Unimplemented = 1 << 31,
+}
+
+#[allow(clippy::too_many_arguments)]
+unsafe fn _syscall(
+    syscall: SysCall,
+    mut a1: u64,
+    mut a2: u64,
+    mut a3: u64,
+    mut a4: u64,
+    mut a5: u64,
+    mut a6: u64,
+    mut a7: u64,
+) -> (u64, u64, u64, u64, u64, u64, u64, u64) {
+    let mut a0 = syscall as u64;
+    unsafe {
+        core::arch::asm!(
+            "ecall",
+            inlateout("a0") a0,
+            inlateout("a1") a1,
+            inlateout("a2") a2,
+            inlateout("a3") a3,
+            inlateout("a4") a4,
+            inlateout("a5") a5,
+            inlateout("a6") a6,
+            inlateout("a7") a7,
+            clobber_abi("system")
+        );
+    }
+    (a0, a1, a2, a3, a4, a5, a6, a7)
+}
+
+macro_rules! syscall {
+    ($syscall:expr, $a1:expr, $a2:expr, $a3:expr, $a4:expr, $a5:expr, $a6:expr, $a7:expr) => {
+        _syscall($syscall, $a1, $a2, $a3, $a4, $a5, $a6, $a7)
+    };
+    ($syscall:expr, $a1:expr, $a2:expr, $a3:expr, $a4:expr, $a5:expr, $a6:expr) => {
+        syscall!($syscall, $a1, $a2, $a3, $a4, $a5, $a6, 0)
+    };
+    ($syscall:expr, $a1:expr, $a2:expr, $a3:expr, $a4:expr, $a5:expr) => {
+        syscall!($syscall, $a1, $a2, $a3, $a4, $a5, 0)
+    };
+    ($syscall:expr, $a1:expr, $a2:expr, $a3:expr, $a4:expr) => {
+        syscall!($syscall, $a1, $a2, $a3, $a4, 0)
+    };
+    ($syscall:expr, $a1:expr, $a2:expr, $a3:expr) => {
+        syscall!($syscall, $a1, $a2, $a3, 0)
+    };
+    ($syscall:expr, $a1:expr, $a2:expr) => {
+        syscall!($syscall, $a1, $a2, 0)
+    };
+    ($syscall:expr, $a1:expr) => {
+        syscall!($syscall, $a1, 0)
+    };
+    ($syscall:expr) => {
+        syscall!($syscall, 0)
+    };
+}
+
+fn alloc(layout: Layout) -> *mut u8 {
+    unsafe {
+        let size = layout.size();
+        let align = layout.align();
+        let (ptr, ..) = syscall!(SysCall::Alloc, size as u64, align as u64);
+        ptr as *mut u8
+    }
+}
+fn dealloc(ptr: *mut u8, layout: core::alloc::Layout) {
+    unsafe {
+        let size = layout.size();
+        let align = layout.align();
+        syscall!(SysCall::Dealloc, ptr as u64, size as u64, align as u64);
+    }
+}

library/std/src/sys/pal/survos.rs

@@ -0,0 +1,11 @@
+/// # Safety
+/// `argc` and `argv` are passed by the kernel
+#[unsafe(no_mangle)]
+#[stable(feature = "rust1", since = "1.0.0")]
+pub unsafe extern "C" fn _start(argc: isize, argv: *const *const u8) -> isize {
+    unsafe extern "C" {
+        fn main(argc: isize, argv: *const *const u8) -> isize;
+    }
+
+    unsafe { main(argc, argv) }
+}