8c6b1ac71e
Also include some minor fixes for gcc 5.1.1 Signed-off-by: Peter Jones <pjones@redhat.com>
93 lines
2.2 KiB
Diff
93 lines
2.2 KiB
Diff
From 80310ad07dfbd682ade52f2db2e536e0e7ccc471 Mon Sep 17 00:00:00 2001
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From: Vladimir Serbinenko <phcoder@gmail.com>
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Date: Thu, 26 Feb 2015 18:22:40 +0100
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Subject: [PATCH 334/506] Add missing lib/division.c
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---
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grub-core/lib/division.c | 73 ++++++++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 73 insertions(+)
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create mode 100644 grub-core/lib/division.c
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diff --git a/grub-core/lib/division.c b/grub-core/lib/division.c
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new file mode 100644
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index 0000000..920a79f
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--- /dev/null
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+++ b/grub-core/lib/division.c
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@@ -0,0 +1,73 @@
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+/*
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+ * GRUB -- GRand Unified Bootloader
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+ * Copyright (C) 2015 Free Software Foundation, Inc.
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+ *
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+ * GRUB is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * GRUB is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+#include <grub/misc.h>
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+#include <grub/dl.h>
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+
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+GRUB_MOD_LICENSE ("GPLv3+");
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+
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+static grub_uint64_t
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+abs64(grub_int64_t a)
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+{
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+ return a > 0 ? a : -a;
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+}
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+
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+grub_int64_t
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+grub_divmod64s (grub_int64_t n,
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+ grub_int64_t d,
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+ grub_int64_t *ro)
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+{
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+ grub_uint64_t ru;
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+ grub_int64_t q, r;
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+ q = grub_divmod64 (abs64(n), abs64(d), &ru);
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+ r = ru;
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+ /* Now: |n| = |d| * q + r */
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+ if (n < 0)
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+ {
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+ /* -|n| = |d| * (-q) + (-r) */
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+ q = -q;
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+ r = -r;
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+ }
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+ /* Now: n = |d| * q + r */
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+ if (d < 0)
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+ {
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+ /* n = (-|d|) * (-q) + r */
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+ q = -q;
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+ }
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+ /* Now: n = d * q + r */
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+ *ro = r;
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+ return q;
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+}
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+
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+grub_uint32_t
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+grub_divmod32 (grub_uint32_t n, grub_uint32_t d, grub_uint32_t *ro)
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+{
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+ grub_uint64_t q, r;
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+ q = grub_divmod64 (n, d, &r);
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+ *ro = r;
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+ return q;
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+}
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+
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+grub_int32_t
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+grub_divmod32s (grub_int32_t n, grub_int32_t d, grub_int32_t *ro)
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+{
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+ grub_int64_t q, r;
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+ q = grub_divmod64s (n, d, &r);
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+ *ro = r;
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+ return q;
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+}
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--
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2.4.3
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