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Author SHA1 Message Date
Aaron 532c32b9c7 feat: auto-mount boot drive to /boot; fix FAT32 deleted entry triple fault
continuous-integration/drone/push Build is passing
- Decode multiboot boot_device byte in storagemanager to identify boot device
- Add isBootDevice to TStorage_Device; propagate isBootDrive to volumes
- Create /boot VFS directory at init; mount boot volume there in auto_mount_volumes
- Fix getDirEntries skipping \-marked (deleted) FAT32 entries to prevent
  triple fault when navigating into a deleted directory via file picker
2026-03-07 18:41:39 +00:00
Aaron 3e3d001a49 storage: fix VFS corruption, ISO9660 hang, OOM; add notepad, file picker, fdtable, GPT, async I/O
continuous-integration/drone/push Build is passing
VFS fixes:
- GetDirectoryListing(otVDIRECTORY) now returns a heap-allocated snapshot
  instead of a raw live-tree pointer; FreeDirectoryListing no longer
  corrupts the VFS tree (fixes page fault on repeated navigation)
- volumeGetDirectories: guard LL_Size > 0 before loop to prevent uint32
  underflow (0-1 = 0xFFFFFFFF) causing 4B kalloc iterations -> OOM
- Free entry^.fileName and dirList in all branches (memory leak fix)

iso9660:
- equalsIgnoreCase: guard la=0 before loop (same uint32 underflow bug)
- readDirectoryEntries/resolvePath: add 65536/256-iter safety caps

storagemanager:
- Strip debug syslog calls that were allocating 6+ strings per I/O
  (hundreds of I/Os x 6 allocs exhausted the heap)

Process manager:
- Per-process FDTable and Cwd initialised on create, freed on reap
- proc_await: use pointer-indirection spin per lesson #6 (FPC caches
  non-volatile reads; raw while flag=0 returns immediately)
- graphicsrefresh: move LVGL handler from timer ISR (IF=0) to a
  dedicated process so LVGL callbacks can call blocking I/O

New units:
- fdtable.pas: per-process file descriptor table (fd_alloc/get/close)
- iorequest.pas: heap allocation helpers for TIORequest
- gpt.pas: GPT header/entry read + CRC validation
- filepicker.pas: reusable OS-level open/save file picker dialog
- notepad.pas: GUI text editor with selection, indent, save-as

Shell commands (diskcmd, partcmd, volcmd, diskutil):
- Route output to stdout_buf instead of syslog (lesson #4)
- diskutil: async add/remove/format partition; cache-based device display

Add Apache 2.0 license headers to storagemanager.pas, iso9660.pas,
fat32.pas, storagetest.pas

Lessons learnt: #9 VFS listing must return snapshot (not live pointer)
2026-03-07 15:10:23 +00:00
Aaron aa0f537b5b getting ready
continuous-integration/drone/push Build is failing
2026-03-05 19:19:09 +00:00
Aaron 00a9da42f1 Storage system: AHCI, IDE rework, VFS, volume manager, flatfs, async IO, IOAPIC 2026-03-05 19:17:08 +00:00
475 changed files with 9312 additions and 109925 deletions

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+3 -34
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@@ -17,39 +17,14 @@ steps:
- name: compile - name: compile
image: t3hn3rd/asuro-build:latest image: t3hn3rd/asuro-build:latest
pull: always
depends_on: depends_on:
- build-image - build-image
commands: commands:
- git fetch --tags - git fetch --tags
- find . -type f -print0 | xargs -0 dos2unix - find . -type f -print0 | xargs -0 dos2unix
- chmod +x /drone/src/toolchain/*.sh - chmod +x /drone/src/*.sh
- /drone/src/toolchain/compile.sh - /drone/src/compile.sh
- name: deploy-docs
image: alpine:latest
depends_on:
- compile
when:
branch:
- master
- develop
- feature/mkdocs
volumes:
- name: docs-htdocs
path: /htdocs
commands:
- apk add --no-cache rsync
- |
if [ "${DRONE_BRANCH}" = "master" ]; then
DEST="/htdocs/master"
else
DEST="/htdocs/develop"
fi
- mkdir -p "$DEST"
- rsync -a --delete site/ "$DEST/"
- echo "Documentation deployed to ${DRONE_BRANCH}"
- name: upload-iso-artifact - name: upload-iso-artifact
image: alpine/git image: alpine/git
depends_on: depends_on:
@@ -88,10 +63,4 @@ steps:
from_secret: discord_webhook_id from_secret: discord_webhook_id
webhook_token: webhook_token:
from_secret: discord_webhook_secret from_secret: discord_webhook_secret
message: "**Asuro Build**\n\n{{#success build.status}}✅ Build successful!\n\n{{else}}❌ Build failed!\n\n{{/success}}Repository: `{{repo.namespace}}/{{repo.name}}`\nBranch: `{{commit.branch}}`\nCommit: `{{commit.sha}}`\nAuthor: `{{commit.author}} <{{commit.email}}>`\n\nGitea Diff: [Link](<{{commit.link}}>)\nDrone Build: [Link](<{{build.link}}>)\n\nMessage: {{commit.message}}" message: "**Asuro Build**\n\n{{#success build.status}}✅ Build successful!\n\n{{else}}❌ Build failed!\n\n{{/success}}Repository: `{{repo.namespace}}/{{repo.name}}`\nBranch: `{{commit.branch}}`\nCommit: `{{commit.sha}}`\nAuthor: `{{commit.author}} <{{commit.email}}>`\n\nGitea Diff: [Link](<{{commit.link}}>)\nDrone Build: [Link](<{{build.link}}>)\n\nMessage: {{commit.message}}"
volumes:
- name: docs-htdocs
host:
path: /mnt/user/htdocs/asuro_docs
+1 -9
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@@ -14,13 +14,5 @@ localenv.json
/lvgl/ /lvgl/
dockerout.txt dockerout.txt
AGENTS.md AGENTS.md
lessons_learnt.md
*.log *.log
wasuro /doc/*.md
src/core/core.version.pas
site/*
!site/.gitkeep
/src/boot/dangling_units.inc
/lib/dangling/
.moderne
CLAUDE.md
+6 -8
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@@ -1,16 +1,12 @@
ARG RECIPES_IMAGE=t3hn3rd/moderne-asuro-recipes:0.1.1@sha256:eaf54188053511dad9c620a8fb98b0f50c41770cd49a0b3d71a0538386522011 FROM ubuntu:latest
FROM ${RECIPES_IMAGE}
VOLUME ["/code"] VOLUME ["/code"]
ENV DEBIAN_FRONTEND=noninteractive ENV DEBIAN_FRONTEND=noninteractive
RUN dpkg --add-architecture i386 RUN dpkg --add-architecture i386
RUN apt-get update && apt-get install -y \ RUN apt-get update && apt-get install -y \
curl dos2unix wget git make nasm binutils xorriso grub-pc-bin gcc gcc-multilib \ curl dos2unix wget git make nasm binutils xorriso grub-pc-bin gcc gcc-multilib && \
python3 python3-pip python3-pil && \ apt-get clean my room
apt-get clean && rm -rf /var/lib/apt/lists/*
RUN pip3 install --no-cache-dir --break-system-packages "mkdocs>=1.6,<2" mkdocs-material
SHELL ["/bin/bash", "-c"] SHELL ["/bin/bash", "-c"]
ARG FPC_VERSION=3.2.2 ARG FPC_VERSION=3.2.2
@@ -18,8 +14,10 @@ RUN curl -sL https://sourceforge.net/projects/freepascal/files/Linux/$FPC_VERSIO
pushd fpc-$FPC_VERSION.i386-linux && ./install.sh && popd && \ pushd fpc-$FPC_VERSION.i386-linux && ./install.sh && popd && \
rm -rf fpc-$FPC_VERSION.i386-linux rm -rf fpc-$FPC_VERSION.i386-linux
COPY compile.sh /compile.sh
ADD https://raw.githubusercontent.com/fsaintjacques/semver-tool/master/src/semver /usr/bin/semver ADD https://raw.githubusercontent.com/fsaintjacques/semver-tool/master/src/semver /usr/bin/semver
RUN chmod +x /usr/bin/semver RUN chmod +x /usr/bin/semver
WORKDIR /code WORKDIR /code
RUN find . -type f -print0 | xargs -0 dos2unix
ENTRYPOINT ["/bin/bash", "-c"] ENTRYPOINT ["/bin/bash", "-c"]
CMD ["find toolchain -name '*.sh' -exec dos2unix {} + 2>/dev/null; find toolchain -name '*.sh' -exec chmod +x {} +; bash toolchain/compile.sh"] CMD ["/compile.sh"]
-8
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@@ -1,8 +0,0 @@
**/.git
**/.gradle
**/build
**/.moderne
wasuro
site
lib
release
+157
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-75
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@@ -1,75 +0,0 @@
{ Compatibility shim: wasuro references the old unit name 'lmemorymanager'.
Since wasuro/ cannot be modified, this unit re-exports the public API of
memory.heap so that 'uses lmemorymanager' continues to compile. }
unit lmemorymanager;
interface
uses
memory.heap;
const
ALLOC_UNIT = memory.heap.ALLOC_UNIT;
DATA_OFFSET = memory.heap.DATA_OFFSET;
PAGE_SIZE_LMM = memory.heap.PAGE_SIZE_LMM;
TOTAL_UNITS = memory.heap.TOTAL_UNITS;
BITMAP_DWORDS = memory.heap.BITMAP_DWORDS;
SIZE_PREFIX = memory.heap.SIZE_PREFIX;
LARGE_ALLOC_MAGIC = memory.heap.LARGE_ALLOC_MAGIC;
type
PHeapPageHeader = memory.heap.PHeapPageHeader;
THeapPageHeader = memory.heap.THeapPageHeader;
procedure init;
function kalloc(size : uint32) : void;
function klalloc(size : uint32) : void;
procedure klfree(address : uint32);
function kpalloc(address : uint32) : void;
procedure kfree(area : void);
function lmm_total_free : uint32;
function lmm_page_count : uint32;
implementation
procedure init;
begin
memory.heap.init;
end;
function kalloc(size : uint32) : void; inline;
begin
kalloc := memory.heap.kalloc(size);
end;
function klalloc(size : uint32) : void; inline;
begin
klalloc := memory.heap.klalloc(size);
end;
procedure klfree(address : uint32); inline;
begin
memory.heap.klfree(address);
end;
function kpalloc(address : uint32) : void; inline;
begin
kpalloc := memory.heap.kpalloc(address);
end;
procedure kfree(area : void); inline;
begin
memory.heap.kfree(area);
end;
function lmm_total_free : uint32; inline;
begin
lmm_total_free := memory.heap.lmm_total_free;
end;
function lmm_page_count : uint32; inline;
begin
lmm_page_count := memory.heap.lmm_page_count;
end;
end.
-7
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@@ -1,7 +0,0 @@
unit types;
interface
implementation
end.
+4 -11
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@@ -1,6 +1,4 @@
#!/usr/bin/env bash #!/usr/bin/env bash
TOOLCHAIN_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$TOOLCHAIN_DIR/architecture.sh" || exit 1
ERRCOUNT=0 ERRCOUNT=0
echo " " echo " "
echo "=======================" echo "======================="
@@ -26,21 +24,16 @@ declare -a run_steps=(
"compile_stub.sh" "Failed to compile stub!" "compile_stub.sh" "Failed to compile stub!"
"compile_vergen.sh" "Versions failed to compile" "compile_vergen.sh" "Versions failed to compile"
"compile_lvgl.sh" "Failed to compile LVGL!" "compile_lvgl.sh" "Failed to compile LVGL!"
"compile_icons.sh" "Failed to generate icons!"
"compile_wasuro.sh" "Failed to pull Wasuro!"
"compile_dangling.sh" "Failed to generate dangling unit list!"
"compile_sources.sh" "Failed to compile FPC Sources!" "compile_sources.sh" "Failed to compile FPC Sources!"
"compile_initcalls.sh" "Failed to generate INITFINAL table!"
"compile_link.sh" "Failed linking!" "compile_link.sh" "Failed linking!"
"compile_isogen.sh" "Failed to create ISO!" "compile_isogen.sh" "Failed to create ISO!"
"compile_docs.sh" "Failed to generate documentation!"
) )
for ((i=0; i<${#run_steps[@]}; i+=2)) for ((i=0; i<${#run_steps[@]}; i+=2))
do do
if [ "$ERRCOUNT" -eq "0" ] if [ "$ERRCOUNT" -eq "0" ]
then then
script="${TOOLCHAIN_DIR}/${run_steps[$i]}" script=$(pwd)/"${run_steps[$i]}"
message="${run_steps[$i+1]}" message="${run_steps[$i+1]}"
runOrFail "$script" "$message" runOrFail "$script" "$message"
fi fi
@@ -49,9 +42,9 @@ done
#Call generate final artifacts based on failure or success of the above. #Call generate final artifacts based on failure or success of the above.
if [ "$ERRCOUNT" -ne "0" ] if [ "$ERRCOUNT" -ne "0" ]
then then
. "${TOOLCHAIN_DIR}/compile_finish.sh" "failed" . ./compile_finish.sh "failed"
else else
. "${TOOLCHAIN_DIR}/compile_finish.sh" "success" . ./compile_finish.sh "success"
fi fi
cd .. cd ..
File renamed without changes.
+17
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@@ -0,0 +1,17 @@
#!/usr/bin/env bash
echo " "
echo "======================="
echo " "
echo "Generating Documentation..."
echo " "
echo "Dowloading Pasdoc..."
wget https://github.com/pasdoc/pasdoc/releases/download/v0.16.0/pasdoc-0.16.0-linux-x86_64.tar.gz -O pasdoc.tar.gz
echo "Extracting Pasdoc..."
tar -xf pasdoc.tar.gz
echo "Creating doc output directory..."
mkdir ./doc
echo "Removing old docs"
rm -rf ./doc/*
echo "Generating Docs..."
./pasdoc/bin/pasdoc -N "Asuro" -T "Asuro OS Documentation" -O "html" -E ./doc/ -S sources.list --use-tipue-search
echo "Docgen finished."
File renamed without changes.
File renamed without changes.
@@ -19,4 +19,4 @@ echo " "
LIBGCC=$(gcc -m32 -print-libgcc-file-name) LIBGCC=$(gcc -m32 -print-libgcc-file-name)
echo "libgcc: ${LIBGCC}" echo "libgcc: ${LIBGCC}"
ld -m elf_i386 -s --gc-sections --no-warn-execstack -Ttoolchain/linker.script -o bin/kernel.bin $objstring --start-group lib/liblvgl.a ${LIBGCC} --end-group ld -m elf_i386 -s --gc-sections -Tlinker.script -o bin/kernel.bin $objstring --start-group lib/liblvgl.a ${LIBGCC} --end-group
File renamed without changes.
File renamed without changes.
+13
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@@ -0,0 +1,13 @@
#!/usr/bin/env bash
echo " "
echo "======================="
echo " "
echo "Compiling FPC Sources..."
echo " "
# Build -Fu flags for all directories under src/ and wasuro/
FU_PATHS="-Fusrc -Fuwasuro"
for dir in $(find src wasuro -type d 2>/dev/null); do
FU_PATHS="$FU_PATHS -Fu$dir"
done
fpc -Aelf -gw -g -gl -n -v0ew -O3 -OpPENTIUM3 -Si -Sc -Sg -Xd -CX -XXs -CfSSE -CfSSE2 -Rintel -Pi386 -Tlinux -FElib/ $FU_PATHS src/kernel.pas
+7
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@@ -0,0 +1,7 @@
#!/usr/bin/env bash
echo " "
echo "======================="
echo " "
echo "Compiling Stub..."
echo " "
nasm -f elf src/stub/stub.asm -o lib/stub.o
File renamed without changes.
@@ -1,15 +1,14 @@
#!/usr/bin/env bash #!/usr/bin/env bash
set -e set -e
TOOLCHAIN_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
echo " " echo " "
echo "=======================" echo "======================="
echo " " echo " "
echo "Generating Versioning Info..." echo "Generating Versioning Info..."
echo " " echo " "
chmod +x "${TOOLCHAIN_DIR}/compile_checksum.sh" chmod +x ./compile_checksum.sh
"${TOOLCHAIN_DIR}/compile_checksum.sh" ./compile_checksum.sh
outfile="src/core/core.version.pas" outfile="src/include/asuro.pas"
file="toolchain/version" file="version"
{ {
# this script requires semver tool # this script requires semver tool
wget -q https://raw.githubusercontent.com/fsaintjacques/semver-tool/master/src/semver -O bin/semver && chmod +x bin/semver wget -q https://raw.githubusercontent.com/fsaintjacques/semver-tool/master/src/semver -O bin/semver && chmod +x bin/semver
@@ -23,7 +22,7 @@ sub=$(semver get patch $tagref)
version=$(semver get release $tagref) version=$(semver get release $tagref)
release=$(semver get prerel $tagref) release=$(semver get prerel $tagref)
build=$(semver get build $tagref) build=$(semver get build $tagref)
linecount=$("${TOOLCHAIN_DIR}/loc.sh" | awk '{print $1}') linecount=$(./loc.sh | awk '{print $1}')
sourcecount=$(find src -type f | wc -l) sourcecount=$(find src -type f | wc -l)
drivercount=$(find src/driver -type f | wc -l) drivercount=$(find src/driver -type f | wc -l)
fpcversion=$(fpc -h | grep -m 1 version | awk '{print $5}') fpcversion=$(fpc -h | grep -m 1 version | awk '{print $5}')
@@ -35,7 +34,7 @@ checksum=$(md5sum checksums.md5 | awk '{print $1}')
[[ -n "$release" ]] && version="$version-$release" [[ -n "$release" ]] && version="$version-$release"
cat > $outfile <<EOF cat > $outfile <<EOF
unit core.version; unit asuro;
interface interface
-94
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@@ -1,94 +0,0 @@
# lmemorymanager
Compatibility shim that re-exports the `memory.heap` API under the legacy unit name.
## Overview
The Wasuro WASM VM project references the old unit name `lmemorymanager` for heap memory operations. Because the Wasuro source tree cannot be modified, this shim unit re-exports every public symbol from `memory.heap` so that `uses lmemorymanager` continues to compile without changes. All functions are thin inline wrappers that delegate directly to their `memory.heap` counterparts.
## Dependencies
- `memory.heap` -- the canonical heap allocator implementation in the Asuro kernel.
## Constants
### ALLOC_UNIT
Re-exported from `memory.heap.ALLOC_UNIT`. The base allocation unit size used by the heap allocator.
### DATA_OFFSET
Re-exported from `memory.heap.DATA_OFFSET`. Byte offset from a heap block header to the start of user data.
### PAGE_SIZE_LMM
Re-exported from `memory.heap.PAGE_SIZE_LMM`. Page size used by the lightweight memory manager.
### TOTAL_UNITS
Re-exported from `memory.heap.TOTAL_UNITS`. Total number of allocation units per heap page.
### BITMAP_DWORDS
Re-exported from `memory.heap.BITMAP_DWORDS`. Number of 32-bit words in the per-page allocation bitmap.
### SIZE_PREFIX
Re-exported from `memory.heap.SIZE_PREFIX`. Size of the prefix stored before each allocation to record its length.
### LARGE_ALLOC_MAGIC
Re-exported from `memory.heap.LARGE_ALLOC_MAGIC`. Magic value used to identify large (multi-page) allocations.
## Types
### PHeapPageHeader / THeapPageHeader
Re-exported from `memory.heap`. Pointer and record types describing the header structure at the beginning of each heap page.
## Functions and Procedures
### init
```pascal
procedure init;
```
Initializes the heap memory manager by delegating to `memory.heap.init`.
### kalloc
```pascal
function kalloc(size: uint32): void;
```
Allocates `size` bytes from the kernel heap and returns a pointer to the allocated memory.
### klalloc
```pascal
function klalloc(size: uint32): void;
```
Performs a large kernel allocation of `size` bytes and returns a pointer to the allocated memory.
### klfree
```pascal
procedure klfree(address: uint32);
```
Frees a large allocation previously obtained via `klalloc`.
### kpalloc
```pascal
function kpalloc(address: uint32): void;
```
Allocates a heap page at the specified address and returns a pointer to it.
### kfree
```pascal
procedure kfree(area: void);
```
Frees a standard allocation previously obtained via `kalloc`.
### lmm_total_free
```pascal
function lmm_total_free: uint32;
```
Returns the total number of free bytes available across all heap pages.
### lmm_page_count
```pascal
function lmm_page_count: uint32;
```
Returns the current number of heap pages managed by the allocator.
## Notes
- Every function and procedure in the implementation section is marked `inline`, so the compiler eliminates the wrapper overhead entirely.
- This unit exists solely for backward compatibility with the Wasuro WASM VM build. New kernel code should use `memory.heap` directly.
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