mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 18:21:39 +01:00
Anthony PERARD
c62748312e
The headers install in "/usr/include/xen/foreign/" are missing a licence header. This patch adds a SPDX identifier to clarify that the MIT licence is used. The script now check that the licence of the input file is also MIT, by checking for the presence of the SPDX identifier. Also add information about which files are used to generate the headers. Reported-by: Andrew Cooper <Andrew.Cooper3@citrix.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Acked-by: Andrew Cooper <andrew.cooper3@citrix.com> Release-acked-by: Henry Wang <Henry.Wang@arm.com>
234 lines
6.3 KiB
Python
234 lines
6.3 KiB
Python
#!/usr/bin/python
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from __future__ import print_function
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import sys, re;
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from structs import unions, structs, defines;
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# command line arguments
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arch = sys.argv[1];
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outfile = sys.argv[2];
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infiles = sys.argv[3:];
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###########################################################################
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# configuration #2: architecture information
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inttypes = {};
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header = {};
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footer = {};
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#arm
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inttypes["arm32"] = [
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("unsigned long", "__danger_unsigned_long_on_arm32"),
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("long", "__danger_long_on_arm32"),
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("xen_pfn_t", "uint64_t"),
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("xen_ulong_t", "uint64_t"),
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("uint64_t", "__align8__ uint64_t"),
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]
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header["arm32"] = """
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#define __arm___ARM32 1
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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# define __DECL_REG(n64, n32) union { uint64_t n64; uint32_t n32; }
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# define __align8__ __attribute__((aligned (8)))
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#else
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# define __DECL_REG(n64, n32) uint64_t n64
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# define __align8__ FIXME
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#endif
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""";
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footer["arm32"] = """
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#undef __DECL_REG
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"""
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inttypes["arm64"] = [
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("unsigned long", "__danger_unsigned_long_on_arm64"),
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("long", "__danger_long_on_arm64"),
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("xen_pfn_t", "uint64_t"),
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("xen_ulong_t", "uint64_t"),
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("uint64_t", "__align8__ uint64_t"),
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]
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header["arm64"] = """
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#define __aarch64___ARM64 1
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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# define __DECL_REG(n64, n32) union { uint64_t n64; uint32_t n32; }
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# define __align8__ __attribute__((aligned (8)))
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#else
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# define __DECL_REG(n64, n32) uint64_t n64
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# define __align8__ FIXME
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#endif
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""";
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footer["arm64"] = """
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#undef __DECL_REG
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"""
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# x86_32
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inttypes["x86_32"] = [
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("unsigned long", "uint32_t"),
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("long", "uint32_t"),
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("xen_pfn_t", "uint32_t"),
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("xen_ulong_t", "uint32_t"),
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]
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header["x86_32"] = """
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#define __DECL_REG_LO8(which) uint32_t e ## which ## x
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#define __DECL_REG_LO16(name) uint32_t e ## name
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#define __i386___X86_32 1
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#pragma pack(4)
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""";
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footer["x86_32"] = """
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#undef __DECL_REG_LO8
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#undef __DECL_REG_LO16
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#pragma pack()
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""";
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# x86_64
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inttypes["x86_64"] = [
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("unsigned long", "__align8__ uint64_t"),
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("long", "__align8__ uint64_t"),
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("xen_pfn_t", "__align8__ uint64_t"),
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("xen_ulong_t", "__align8__ uint64_t"),
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]
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header["x86_64"] = """
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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# define __DECL_REG(name) union { uint64_t r ## name, e ## name; }
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# define __align8__ __attribute__((aligned (8)))
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#else
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# define __DECL_REG(name) uint64_t r ## name
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# define __align8__ FIXME
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#endif
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#define __DECL_REG_LOHI(name) __DECL_REG(name ## x)
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#define __DECL_REG_LO8 __DECL_REG
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#define __DECL_REG_LO16 __DECL_REG
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#define __DECL_REG_HI __DECL_REG
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#define __x86_64___X86_64 1
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""";
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footer["x86_64"] = """
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#undef __DECL_REG
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#undef __DECL_REG_LOHI
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#undef __DECL_REG_LO8
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#undef __DECL_REG_LO16
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#undef __DECL_REG_HI
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"""
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###########################################################################
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# main
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input = "";
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output = "";
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fileid = re.sub("[-.]", "_", "__FOREIGN_%s__" % outfile.upper());
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for name in infiles:
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f = open(name, "r");
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# Sanity check the licence of the input file(s)
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line = f.readline()
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if line != "/* SPDX-License-Identifier: MIT */\n":
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print("Error: %s %s Missing or unexpected SPDX tag '%s'" %
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(sys.argv[0], name, line.strip()), file=sys.stderr)
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exit(1)
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input += f.read();
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f.close();
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# replace path in "infiles" by path in '/usr/include' to avoid exposing the
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# build directory path in the generated headers.
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headers_name_list = ""
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public_headers_location = 'xen/include/public/'
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for name in infiles:
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i = name.rindex(public_headers_location)
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i += len(public_headers_location)
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headers_name_list += " xen/%s" % (name[i:])
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# add header
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output += """/* SPDX-License-Identifier: MIT */
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/*
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* public xen defines and struct for %s
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* generated from%s by %s -- DO NOT EDIT
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*/
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#ifndef %s
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#define %s 1
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""" % (arch, headers_name_list, sys.argv[0], fileid, fileid)
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if arch in header:
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output += header[arch];
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output += "\n";
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defined = {}
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# add defines to output
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for line in re.findall("#define[^\n]+", input):
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for define in defines:
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regex = "#define\s+%s\\b" % define;
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match = re.search(regex, line);
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if None == match:
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continue;
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defined[define] = 1
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if define.upper()[0] == define[0]:
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replace = define + "_" + arch.upper();
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else:
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replace = define + "_" + arch;
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regex = "\\b%s\\b" % define;
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output += re.sub(regex, replace, line) + "\n";
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output += "\n";
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# delete defines, comments, empty lines
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input = re.sub("#define[^\n]+\n", "", input);
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input = re.compile("/\*(.*?)\*/", re.S).sub("", input)
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input = re.compile("\n\s*\n", re.S).sub("\n", input);
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# add unions to output
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for union in unions:
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regex = "union\s+%s\s*\{(.*?)\n\};" % union;
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match = re.search(regex, input, re.S)
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if None == match:
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output += "#define %s_has_no_%s 1\n" % (arch, union);
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else:
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output += "union %s_%s {%s\n};\n" % (union, arch, match.group(1));
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output += "\n";
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# add structs to output
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for struct in structs:
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regex = "(?:#ifdef ([A-Z_]+))?\nstruct\s+%s\s*\{(.*?)\n\};" % struct;
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match = re.search(regex, input, re.S)
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if None == match or \
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(match.group(1) is not None and match.group(1) not in defined):
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output += "#define %s_has_no_%s 1\n" % (arch, struct);
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else:
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output += "struct %s_%s {%s\n};\n" % (struct, arch, match.group(2));
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output += "typedef struct %s_%s %s_%s_t;\n" % (struct, arch, struct, arch);
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output += "\n";
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# add footer
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if arch in footer:
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output += footer[arch];
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output += "\n";
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output += "#endif /* %s */\n" % fileid;
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# replace: defines
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for define in defines:
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if define.upper()[0] == define[0]:
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replace = define + "_" + arch.upper();
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else:
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replace = define + "_" + arch;
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output = re.sub("\\b%s\\b" % define, replace, output);
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# replace: unions
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for union in unions:
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output = re.sub("\\b(union\s+%s)\\b" % union, "\\1_%s" % arch, output);
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# replace: structs + struct typedefs
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for struct in structs:
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output = re.sub("\\b(struct\s+%s)\\b" % struct, "\\1_%s" % arch, output);
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output = re.sub("\\b(%s)_t\\b" % struct, "\\1_%s_t" % arch, output);
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# replace: integer types
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for old, new in inttypes[arch]:
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output = re.sub("\\b%s\\b" % old, new, output)
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# print results
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f = open(outfile, "w");
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f.write(output);
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f.close;
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