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[PATCH 3/8] LoongArch: Add setjmp implementation
From: |
Xiaotian Wu |
Subject: |
[PATCH 3/8] LoongArch: Add setjmp implementation |
Date: |
Fri, 7 Jan 2022 16:13:16 +0800 |
Signed-off-by: Xiaotian Wu <wuxiaotian@loongson.cn>
Signed-off-by: Zhou Yang <zhouyang@loongson.cn>
Signed-off-by: Sun Haiyong <sunhaiyong@loongson.cn>
---
grub-core/lib/loongarch64/setjmp.S | 68 ++++++++++++++++++++++++++++++
grub-core/lib/setjmp.S | 2 +
include/grub/loongarch64/setjmp.h | 27 ++++++++++++
3 files changed, 97 insertions(+)
create mode 100644 grub-core/lib/loongarch64/setjmp.S
create mode 100644 include/grub/loongarch64/setjmp.h
diff --git a/grub-core/lib/loongarch64/setjmp.S
b/grub-core/lib/loongarch64/setjmp.S
new file mode 100644
index 000000000..bb0995937
--- /dev/null
+++ b/grub-core/lib/loongarch64/setjmp.S
@@ -0,0 +1,68 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2021 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/dl.h>
+
+ .file "setjmp.S"
+
+GRUB_MOD_LICENSE "GPLv3+"
+
+ .text
+
+/*
+ * int grub_setjmp (jmp_buf env)
+ */
+FUNCTION(grub_setjmp)
+ st.d $s0, $a0, 0x0
+ st.d $s1, $a0, 0x8
+ st.d $s2, $a0, 0x10
+ st.d $s3, $a0, 0x18
+ st.d $s4, $a0, 0x20
+ st.d $s5, $a0, 0x28
+ st.d $s6, $a0, 0x30
+ st.d $s7, $a0, 0x38
+ st.d $s8, $a0, 0x40
+ st.d $fp, $a0, 0x48
+ st.d $sp, $a0, 0x50
+ st.d $ra, $a0, 0x58
+
+ move $a0, $zero
+ jr $ra
+
+/*
+ * void grub_longjmp (jmp_buf env, int val)
+ */
+FUNCTION(grub_longjmp)
+ ld.d $s0, $a0, 0x0
+ ld.d $s1, $a0, 0x8
+ ld.d $s2, $a0, 0x10
+ ld.d $s3, $a0, 0x18
+ ld.d $s4, $a0, 0x20
+ ld.d $s5, $a0, 0x28
+ ld.d $s6, $a0, 0x30
+ ld.d $s7, $a0, 0x38
+ ld.d $s8, $a0, 0x40
+ ld.d $fp, $a0, 0x48
+ ld.d $sp, $a0, 0x50
+ ld.d $ra, $a0, 0x58
+
+ li.w $a0, 1
+ beqz $a1, .L0
+ move $a0, $a1
+.L0:
+ jr $ra
diff --git a/grub-core/lib/setjmp.S b/grub-core/lib/setjmp.S
index 9c8721088..cba1d546d 100644
--- a/grub-core/lib/setjmp.S
+++ b/grub-core/lib/setjmp.S
@@ -19,6 +19,8 @@
#include "./arm/setjmp.S"
#elif defined(__aarch64__)
#include "./arm64/setjmp.S"
+#elif defined(__loongarch64)
+#include "./loongarch64/setjmp.S"
#elif defined(__riscv)
#include "./riscv/setjmp.S"
#else
diff --git a/include/grub/loongarch64/setjmp.h
b/include/grub/loongarch64/setjmp.h
new file mode 100644
index 000000000..f0a8f65f4
--- /dev/null
+++ b/include/grub/loongarch64/setjmp.h
@@ -0,0 +1,27 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2021 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/>.
+ */
+
+#ifndef GRUB_SETJMP_CPU_HEADER
+#define GRUB_SETJMP_CPU_HEADER 1
+
+typedef grub_uint64_t grub_jmp_buf[12];
+
+int grub_setjmp (grub_jmp_buf env) RETURNS_TWICE;
+void grub_longjmp (grub_jmp_buf env, int val) __attribute__ ((noreturn));
+
+#endif /* ! GRUB_SETJMP_CPU_HEADER */
--
2.32.0
- Add LoongArch support, Xiaotian Wu, 2022/01/07
- [PATCH 1/8] PE: Add LoongArch definitions, Xiaotian Wu, 2022/01/07
- [PATCH 3/8] LoongArch: Add setjmp implementation,
Xiaotian Wu <=
- [PATCH 4/8] LoongArch: Add early startup code, Xiaotian Wu, 2022/01/07
- [PATCH 2/8] Add LoongArch definitions, Xiaotian Wu, 2022/01/07
- [PATCH 5/8] LoongArch: Add stubs for Linux loading commands, Xiaotian Wu, 2022/01/07
- [PATCH 6/8] LoongArch: Add awareness for LoongArch relocations, Xiaotian Wu, 2022/01/07
- [PATCH 7/8] LoongArch: Add auxiliary files, Xiaotian Wu, 2022/01/07
- [PATCH 8/8] LoongArch: Add to build system, Xiaotian Wu, 2022/01/07