Red Bear OS — microkernel OS in Rust, based on Redox

Derivative of Redox OS (https://www.redox-os.org) adding:
- AMD GPU driver (amdgpu) via LinuxKPI compat layer
- ext4 filesystem support (ext4d scheme daemon)
- ACPI fixes for AMD bare metal (x2APIC, DMAR, IVRS, MCFG)
- Custom branding (hostname, os-release, boot identity)

Build system is full upstream Redox with RBOS overlay in local/.
Patches for kernel, base, and relibc are symlinked from local/patches/
and protected from make clean/distclean. Custom recipes live in
local/recipes/ with symlinks into the recipes/ search path.

Build:  make all CONFIG_NAME=redbear-full
Sync:   ./local/scripts/sync-upstream.sh
This commit is contained in:
2026-04-12 19:05:00 +01:00
commit 50b731f1b7
3392 changed files with 98327 additions and 0 deletions
+15
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@@ -0,0 +1,15 @@
[source]
tar = "https://github.com/lz4/lz4/releases/download/v1.10.0/lz4-1.10.0.tar.gz"
blake3 = "3e69fd475e7852e17594985528b5232afeba7d3d56cfebe2e89071768b2ab36a"
patches = ["redox.patch"]
[build]
template = "custom"
script = """
DYNAMIC_INIT
rsync -av --delete "${COOKBOOK_SOURCE}/" ./
export CPPFLAGS="${CPPFLAGS} -D_REDOX"
${COOKBOOK_MAKE} prefix="/usr"
${COOKBOOK_MAKE} install DESTDIR="${COOKBOOK_STAGE}" prefix="/usr"
"""
+34
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@@ -0,0 +1,34 @@
diff '--color=auto' -ruwN source/programs/util.h source-new/programs/util.h
--- source/programs/util.h 2024-07-21 13:29:49.000000000 -0400
+++ source-new/programs/util.h 2024-12-13 02:21:03.032769559 -0500
@@ -52,6 +52,9 @@
#include <time.h> /* time */
#include <limits.h> /* INT_MAX */
#include <errno.h>
+#if defined(_REDOX)
+# include <sys/time.h> /* utimes */
+#endif
@@ -239,12 +242,20 @@
timebuf.modtime = statbuf->st_mtime;
res += utime(filename, &timebuf); /* set access and modification times */
#else
+ #if defined(_REDOX)
+ struct timeval timebuf[2];
+ memset(timebuf, 0, sizeof(timebuf));
+ timebuf[0].tv_usec = UTIME_NOW;
+ timebuf[1].tv_sec = statbuf->st_mtime;
+ res += utimes(filename, timebuf);
+ #else
struct timespec timebuf[2];
memset(timebuf, 0, sizeof(timebuf));
timebuf[0].tv_nsec = UTIME_NOW;
timebuf[1].tv_sec = statbuf->st_mtime;
res += utimensat(AT_FDCWD, filename, timebuf, 0); /* set access and modification times */
#endif
+#endif
}
#if !defined(_WIN32)