should be working, should be

git-svn-id: https://svn.vegaa.systems/svn/vega-Vega/trunk@7 a8a8aea2-181d-ee11-89e8-15fd0e089fc4

1 files changed, 116 insertions, 0 deletions

diff --git a/sys/include/arch/amd64/frame.h b/sys/include/arch/amd64/frame.h
new file mode 100644
index 0000000..6239eff
--- /dev/null
+++ b/sys/include/arch/amd64/frame.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _AMD64_FRAME_H_
+#define _AMD64_FRAME_H_
+
+#if !defined(__ASSEMBLER__)
+struct trapframe {
+    uint64_t trapno;
+    uint64_t rax;
+    uint64_t rcx;
+    uint64_t rdx;
+    uint64_t rbx;
+    uint64_t rsi;
+    uint64_t rdi;
+    uint64_t rbp;
+    uint64_t r8;
+    uint64_t r9;
+    uint64_t r10;
+    uint64_t r11;
+    uint64_t r12;
+    uint64_t r13;
+    uint64_t r14;
+    uint64_t r15;
+    /* Pushed by hardware */
+    uint64_t error_code;
+    uint64_t rip;
+    uint64_t cs;
+    uint64_t rflags;
+    uint64_t rsp;
+    uint64_t ss;
+};
+#else
+/*
+ * XXX: Before this macro is invoked,
+ *      you should determine if an error
+ *      code will be present already on the
+ *      stack. If not, push a null qword as
+ *      padding (e.g push $0).
+ *
+ *      There *must* be a value used
+ *      as an error code whether that be
+ *      a real error code or just padding.
+ *
+ *      Failing to do so will result in
+ *      undefined behaviour.
+ *
+ */
+.macro push_trapframe trapno 
+    push %r15
+    push %r14
+    push %r13
+    push %r12
+    push %r11
+    push %r10
+    push %r9
+    push %r8
+    push %rbp
+    push %rdi
+    push %rsi
+    push %rbx
+    push %rdx
+    push %rcx
+    push %rax
+    push \trapno
+.endm
+
+.macro pop_trapframe trapno
+    add $8, %rsp        /* Trapno */
+    pop %rax
+    pop %rcx
+    pop %rdx
+    pop %rbx
+    pop %rsi
+    pop %rdi
+    pop %rbp
+    pop %r8
+    pop %r9
+    pop %r10
+    pop %r12
+    pop %r13
+    pop %r14
+    pop %r15
+    add $8, %rsp        /* Pop error code */
+    iretq
+.endm
+#endif  /* !defined(__ASSEMBLER__) */
+#endif  /* !_AMD64_FRAME_H_ */