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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:54:16 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:54:16 +0000
commit485f6ecd453d8a2fd8b9b9fadea03159d8b50797 (patch)
tree32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/lib/i386/setjmp.S
parentInitial commit. (diff)
downloadgrub2-485f6ecd453d8a2fd8b9b9fadea03159d8b50797.tar.xz
grub2-485f6ecd453d8a2fd8b9b9fadea03159d8b50797.zip
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'grub-core/lib/i386/setjmp.S')
-rw-r--r--grub-core/lib/i386/setjmp.S59
1 files changed, 59 insertions, 0 deletions
diff --git a/grub-core/lib/i386/setjmp.S b/grub-core/lib/i386/setjmp.S
new file mode 100644
index 0000000..0b0740f
--- /dev/null
+++ b/grub-core/lib/i386/setjmp.S
@@ -0,0 +1,59 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2003,2007 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+#include <grub/dl.h>
+
+ .file "setjmp.S"
+
+GRUB_MOD_LICENSE "GPLv3+"
+
+ .text
+
+/*
+ * int grub_setjmp (grub_jmp_buf env)
+ */
+FUNCTION(grub_setjmp)
+ movl %ebx, 0(%eax) /* EBX */
+ movl %esi, 4(%eax) /* ESI */
+ movl %edi, 8(%eax) /* EDI */
+ movl %ebp, 12(%eax) /* EBP */
+ popl %ecx
+ movl %esp, 16(%eax) /* ESP */
+ movl %ecx, 20(%eax) /* EIP */
+ xorl %eax, %eax
+ jmp *%ecx
+
+
+/*
+ * int grub_longjmp (grub_jmp_buf env, int val)
+ */
+FUNCTION(grub_longjmp)
+ movl 0(%eax), %ebx
+ movl 4(%eax), %esi
+ movl 8(%eax), %edi
+ movl 12(%eax), %ebp
+ movl 16(%eax), %esp
+ movl 20(%eax), %ecx
+
+ movl %edx, %eax
+ testl %eax, %eax
+ jnz 1f
+ incl %eax
+1: jmp *%ecx
+