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authorGreg Hartman <ghartman@google.com>2016-11-23 15:51:27 -0800
committerGreg Hartman <ghartman@google.com>2016-11-23 15:52:24 -0800
commit76d05dc695b06c4e987bb8078f78032441e1430c (patch)
tree7b567ae0c1fde3fd699b8839ca39b54aa1c10046 /gnu-efi/gnu-efi-3.0/gnuefi/setjmp_ia32.S
parent49db3fec5f3681cf8fafd57c8987fcff2d40bc89 (diff)
downloadsyslinux-android-cts-8.1_r19.tar.gz
Clean checkin of the 6.03 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BUG: 32495852 Change-Id: I5038a3bb41e217380c1188463daec07b1e9b6b48
Diffstat (limited to 'gnu-efi/gnu-efi-3.0/gnuefi/setjmp_ia32.S')
-rw-r--r--gnu-efi/gnu-efi-3.0/gnuefi/setjmp_ia32.S87
1 files changed, 87 insertions, 0 deletions
diff --git a/gnu-efi/gnu-efi-3.0/gnuefi/setjmp_ia32.S b/gnu-efi/gnu-efi-3.0/gnuefi/setjmp_ia32.S
new file mode 100644
index 0000000..5f71caf
--- /dev/null
+++ b/gnu-efi/gnu-efi-3.0/gnuefi/setjmp_ia32.S
@@ -0,0 +1,87 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2000 Free Software Foundation, Inc.
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* This is stolen from libc/x86/setjmp.S in the OSKit */
+/*
+ * Mach Operating System
+ * Copyright (c) 1991,1990,1989 Carnegie Mellon University
+ * All Rights Reserved.
+ *
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
+ * School of Computer Science
+ * Carnegie Mellon University
+ * Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+/*
+ * C library -- _setjmp, _longjmp
+ *
+ * _longjmp(a,v)
+ * will generate a "return(v)" from
+ * the last call to
+ * _setjmp(a)
+ * by restoring registers from the stack,
+ * The previous signal state is NOT restored.
+ *
+ */
+
+#define EXT_C(sym) sym
+#define FUNCTION(x) .globl EXT_C(x) ; .type EXT_C(x), @function ; EXT_C(x):
+
+ .file "setjmp.S"
+
+ .text
+
+FUNCTION(setjmp)
+ movl 4(%esp), %ecx /* fetch buffer */
+ movl %ebx, 0(%ecx)
+ movl %esi, 4(%ecx)
+ movl %edi, 8(%ecx)
+ movl %ebp, 12(%ecx) /* save frame pointer of caller */
+ popl %edx
+ movl %esp, 16(%ecx) /* save stack pointer of caller */
+ movl %edx, 20(%ecx) /* save pc of caller */
+ xorl %eax, %eax
+ jmp *%edx
+
+FUNCTION(longjmp)
+ movl 8(%esp), %eax /* return(v) */
+ movl 4(%esp), %ecx /* fetch buffer */
+ movl 0(%ecx), %ebx
+ movl 4(%ecx), %esi
+ movl 8(%ecx), %edi
+ movl 12(%ecx), %ebp
+ movl 16(%ecx), %esp
+ orl %eax, %eax
+ jnz 0f
+ incl %eax
+0: jmp *20(%ecx) /* done, return.... */