vasilito
dc68054305
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
83 lines
3.1 KiB
Diff
83 lines
3.1 KiB
Diff
From f69c8e8cb4feb81b3923d869a2f529b2b4d58c1c Mon Sep 17 00:00:00 2001
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From: Red Bear OS <vasilito@redbearos.org>
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Date: Thu, 11 Jun 2026 02:07:44 +0300
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Subject: [PATCH] add sys/ioccom.h for DRM UAPI ioctl encoding
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---
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include/sys/ioccom.h | 63 ++++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 63 insertions(+)
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create mode 100644 include/sys/ioccom.h
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diff --git a/include/sys/ioccom.h b/include/sys/ioccom.h
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new file mode 100644
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index 0000000..4722557
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--- /dev/null
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+++ b/include/sys/ioccom.h
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@@ -0,0 +1,63 @@
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+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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+/*
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+ * Linux UAPI asm-generic/ioctl.h — ioctl command encoding macros.
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+ * Required by DRM UAPI headers (drm-uapi/drm.h, drm-uapi/sync_file.h)
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+ * which include <sys/ioccom.h> for _IO/_IOR/_IOW/_IOWR.
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+ *
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+ * On glibc/musl this is provided by the libc. On Redox (relibc) it
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+ * is not, because ioctl direction encoding is a Linux UAPI convention
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+ * rather than a POSIX requirement.
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+ *
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+ * This header is a pure compile-time macro encoding; the values never
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+ * reach a real ioctl(2) syscall on Redox. The DRM dispatch surface
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+ * (libdrm's drmIoctl -> scheme:drm/SchemeSync in
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+ * local/sources/redox-drm/) is the runtime source of truth, and it
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+ * uses different encoding internally.
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+ */
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+#ifndef _SYS_IOCCOM_H
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+#define _SYS_IOCCOM_H
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+
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+#define _IOC_NRBITS 8
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+#define _IOC_TYPEBITS 8
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+#define _IOC_SIZEBITS 14
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+#define _IOC_DIRBITS 2
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+
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+#define _IOC_NRMASK ((1 << _IOC_NRBITS) - 1)
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+#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS) - 1)
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+#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS) - 1)
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+#define _IOC_DIRMASK ((1 << _IOC_DIRBITS) - 1)
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+
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+#define _IOC_NRSHIFT 0
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+#define _IOC_TYPESHIFT (_IOC_NRSHIFT + _IOC_NRBITS)
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+#define _IOC_SIZESHIFT (_IOC_TYPESHIFT + _IOC_TYPEBITS)
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+#define _IOC_DIRSHIFT (_IOC_SIZESHIFT + _IOC_SIZEBITS)
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+
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+#define _IOC_NONE 0U
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+#define _IOC_WRITE 1U
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+#define _IOC_READ 2U
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+
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+#define _IOC(dir, type, nr, size) \
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+ (((dir) << _IOC_DIRSHIFT) | \
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+ ((type) << _IOC_TYPESHIFT) | \
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+ ((nr) << _IOC_NRSHIFT) | \
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+ ((size) << _IOC_SIZESHIFT))
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+
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+#define _IOC_TYPECHECK(t) (sizeof(t))
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+
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+#define _IO(type, nr) _IOC(_IOC_NONE, (type), (nr), 0)
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+#define _IOR(type, nr, argtype) _IOC(_IOC_READ, (type), (nr), (_IOC_TYPECHECK(argtype)))
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+#define _IOW(type, nr, argtype) _IOC(_IOC_WRITE, (type), (nr), (_IOC_TYPECHECK(argtype)))
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+#define _IOWR(type, nr, argtype) _IOC(_IOC_READ | _IOC_WRITE, (type), (nr), (_IOC_TYPECHECK(argtype)))
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+
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+#define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
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+#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
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+#define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
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+#define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
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+
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+#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT)
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+#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT)
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+#define IOC_INOUT ((_IOC_WRITE | _IOC_READ) << _IOC_DIRSHIFT)
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+#define IOCSIZE_MASK (_IOC_SIZEMASK << _IOC_SIZESHIFT)
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+#define IOCSIZE_SHIFT (_IOC_SIZESHIFT)
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+
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+#endif /* _SYS_IOCCOM_H */
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--
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2.54.0
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