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authorDavid S. Miller <davem@davemloft.net>2021-02-26 16:16:24 -0800
committerDavid S. Miller <davem@davemloft.net>2021-02-26 16:16:24 -0800
commitcf64c2a905e0dabcc473ca70baf275fb3a61fac4 (patch)
tree41600722fc372ef167048622e5959cdf7e458aea /arch/sparc/include/asm/extable.h
parentb9d62433114108eb45d4cae04abccb9b30ac005d (diff)
parent73686e787b495a85551e2e99c459adde6836eb31 (diff)
downloadlinux-cf64c2a905e0dabcc473ca70baf275fb3a61fac4.tar.bz2
Merge branch 'work.sparc32' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Diffstat (limited to 'arch/sparc/include/asm/extable.h')
-rw-r--r--arch/sparc/include/asm/extable.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/extable.h b/arch/sparc/include/asm/extable.h
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+++ b/arch/sparc/include/asm/extable.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_EXTABLE_H
+#define __ASM_EXTABLE_H
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue. No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path. This means when everything is well,
+ * we don't even have to jump over them. Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry {
+ unsigned int insn, fixup;
+};
+
+#endif