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authorAlexander Graf <agraf@suse.de>2018-04-23 07:59:43 +0200
committerAndes <uboot@andestech.com>2018-05-29 14:43:12 +0800
commita7f99e5dd7dfa1853dee25e0fcb761eee0fb3ad3 (patch)
tree4a22ea380b55b8b74e0ca03d6c96dc472bdf07f1 /arch/riscv/include
parentc3c863880479edeb5b08226e622d13c91326e4a7 (diff)
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riscv: Add setjmp/longjmp code
To support efi_loader we need to have platform support for setjmp/longjmp. Add it here. Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/riscv/include')
-rw-r--r--arch/riscv/include/asm/setjmp.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/setjmp.h b/arch/riscv/include/asm/setjmp.h
new file mode 100644
index 0000000..01ad6d0
--- /dev/null
+++ b/arch/riscv/include/asm/setjmp.h
@@ -0,0 +1,26 @@
+/*
+ * (C) Copyright 2018 Alexander Graf <agraf@suse.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _SETJMP_H_
+#define _SETJMP_H_ 1
+
+/*
+ * This really should be opaque, but the EFI implementation wrongly
+ * assumes that a 'struct jmp_buf_data' is defined.
+ */
+struct jmp_buf_data {
+ /* x2, x8, x9, x18, x19, x20, x21, x22, x23, x24, x25, x26, x27, sp */
+ unsigned long s_regs[12]; /* s0 - s11 */
+ unsigned long ra;
+ unsigned long sp;
+};
+
+typedef struct jmp_buf_data jmp_buf[1];
+
+int setjmp(jmp_buf jmp);
+void longjmp(jmp_buf jmp, int ret);
+
+#endif /* _SETJMP_H_ */