linux-qubasis

commit 14c4d01939416978479df43e6898e81c27846d4b
parent 982f894af4e0edd70f8a7889145355839590eb2a
Author: Jul <jul@9o.is>
Date:   Thu, 27 Nov 2025 11:39:07 -0500

add mtdev

Diffstat:
M
pkg/gen.sh
 | 
1
+
A
pkg/mtdev/gen.sh
 | 
26
++++++++++++++++++++++++++
A
pkg/mtdev/patch/0001-Avoid-__builtin_ffs.patch
 | 
44
++++++++++++++++++++++++++++++++++++++++++++

3 files changed, 71 insertions(+), 0 deletions(-)
diff --git a/pkg/gen.sh b/pkg/gen.sh
@@ -33,6 +33,7 @@ pkg linux-headers
 pkg lpeg
 pkg lua
 pkg mandoc
+pkg mtdev
 pkg netbsd-curses
 pkg oksh
 pkg openbsd
diff --git a/pkg/mtdev/gen.sh b/pkg/mtdev/gen.sh
@@ -0,0 +1,26 @@
+curl https://bitmath.se/org/code/mtdev/mtdev-1.1.6.tar.gz \
+	1325f389a2f25cd5f5a8ea4d29aad24aa7c3ec30401d679400dd79eb9c0a8dbb
+
+cflags "
+	-I$srcdir/include
+	-isystem $pkgdir/linux-headers/include
+	-Wno-unused-parameter
+	-Wno-sign-compare
+	-Wno-error=overflow
+	-Wno-overflow
+"
+
+dep linux-headers/headers
+
+include --src-prefix include "
+	mtdev.h
+	mtdev-plumbing.h
+"
+
+lib libmtdev.a --src-prefix src "
+	caps.c
+	core.c
+	iobuf.c
+	match.c
+	match_four.c
+"
diff --git a/pkg/mtdev/patch/0001-Avoid-__builtin_ffs.patch b/pkg/mtdev/patch/0001-Avoid-__builtin_ffs.patch
@@ -0,0 +1,44 @@
+From 09e21bb5d6714687705dc8f2d00a09b3ff3b2436 Mon Sep 17 00:00:00 2001
+From: Michael Forney <mforney@mforney.org>
+Date: Fri, 7 Jun 2019 11:55:26 -0700
+Subject: [PATCH] Avoid __builtin_ffs
+
+---
+ src/common.h | 5 +----
+ src/core.c   | 2 +-
+ 2 files changed, 2 insertions(+), 5 deletions(-)
+
+diff --git a/src/common.h b/src/common.h
+index 80a3d6e..3c77f48 100644
+--- a/src/common.h
++++ b/src/common.h
+@@ -77,12 +77,9 @@ static inline int bitcount(unsigned v)
+ 	return (((v + (v>>4)) & 0xF0F0F0F) * 0x1010101) >> 24;
+ }
+ 
+-/* Return index of first bit [0-31], -1 on zero */
+-#define firstbit(v) (__builtin_ffs(v) - 1)
+-
+ /* boost-style foreach bit */
+ #define foreach_bit(i, m)						\
+-	for (i = firstbit(m); i >= 0; i = firstbit((m) & (~0U << (i + 1))))
++	for (i = -1; (m) & ~0U << (i + 1);) if ((m) & 1U << ++i)
+ 
+ /* robust system ioctl calls */
+ #define SYSCALL(call) while (((call) == -1) && (errno == EINTR))
+diff --git a/src/core.c b/src/core.c
+index 0d91c0b..20ce0c6 100644
+--- a/src/core.c
++++ b/src/core.c
+@@ -304,7 +304,7 @@ static void apply_typeA_changes(struct mtdev_state *state,
+ 			break;
+ 		}
+ 		if (id != MT_ID_NULL) {
+-			slot = firstbit(unused);
++			foreach_bit(slot, unused) break;
+ 			push_slot_changes(state, &data[i], prop[i], slot, syn);
+ 			SETBIT(used, slot);
+ 			CLEARBIT(unused, slot);
+-- 
+2.25.0
+