gas: Add --gcodeview option

1 files changed, 104 insertions, 0 deletions

diff --git a/gas/codeview.h b/gas/codeview.h
new file mode 100644
index 0000000..49272b6
--- /dev/null
+++ b/gas/codeview.h
@@ -0,0 +1,104 @@
+/* codeview.h - CodeView debug support
+   Copyright (C) 2022 Free Software Foundation, Inc.
+
+   This file is part of GAS, the GNU Assembler.
+
+   GAS 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, or (at your option)
+   any later version.
+
+   GAS 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 GAS; see the file COPYING.  If not, write to the Free
+   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */
+
+/* Header files referred to below can be found in Microsoft's PDB
+   repository: https://github.com/microsoft/microsoft-pdb.  */
+
+#ifndef GAS_CODEVIEW_H
+#define GAS_CODEVIEW_H
+
+#define CV_SIGNATURE_C13	4
+
+#define DEBUG_S_SYMBOLS		0xf1
+#define DEBUG_S_LINES		0xf2
+#define DEBUG_S_STRINGTABLE	0xf3
+#define DEBUG_S_FILECHKSMS	0xf4
+
+#define S_OBJNAME		0x1101
+#define S_COMPILE3		0x113c
+
+#define CV_CFL_MASM		0x03
+
+#define CV_CFL_80386		0x03
+#define CV_CFL_X64		0xD0
+
+#define CHKSUM_TYPE_MD5		1
+
+/* OBJNAMESYM in cvinfo.h */
+struct OBJNAMESYM
+{
+  uint16_t length;
+  uint16_t type;
+  uint32_t signature;
+};
+
+/* COMPILESYM3 in cvinfo.h */
+struct COMPILESYM3
+{
+  uint16_t length;
+  uint16_t type;
+  uint32_t flags;
+  uint16_t machine;
+  uint16_t frontend_major;
+  uint16_t frontend_minor;
+  uint16_t frontend_build;
+  uint16_t frontend_qfe;
+  uint16_t backend_major;
+  uint16_t backend_minor;
+  uint16_t backend_build;
+  uint16_t backend_qfe;
+} ATTRIBUTE_PACKED;
+
+/* filedata in dumpsym7.cpp */
+struct file_checksum
+{
+  uint32_t file_id;
+  uint8_t checksum_length;
+  uint8_t checksum_type;
+} ATTRIBUTE_PACKED;
+
+/* CV_DebugSLinesHeader_t in cvinfo.h */
+struct cv_lines_header
+{
+  uint32_t offset;
+  uint16_t section;
+  uint16_t flags;
+  uint32_t length;
+};
+
+/* CV_DebugSLinesFileBlockHeader_t in cvinfo.h */
+struct cv_lines_block
+{
+  uint32_t file_id;
+  uint32_t num_lines;
+  uint32_t length;
+};
+
+/* CV_Line_t in cvinfo.h */
+struct cv_line
+{
+  uint32_t offset;
+  uint32_t line_no;
+};
+
+extern void codeview_finish (void);
+extern void codeview_generate_asm_lineno (void);
+
+#endif