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-rw-r--r--test/MC/ELF/basic-elf.ll110
-rwxr-xr-xtest/Scripts/elf-dump225
-rw-r--r--test/Scripts/elf-dump.bat7
3 files changed, 342 insertions, 0 deletions
diff --git a/test/MC/ELF/basic-elf.ll b/test/MC/ELF/basic-elf.ll
new file mode 100644
index 0000000..abdce7e
--- /dev/null
+++ b/test/MC/ELF/basic-elf.ll
@@ -0,0 +1,110 @@
+; RUN: llc -filetype=obj -mtriple i686-pc-linux-gnu %s -o - | elf-dump | FileCheck -check-prefix=32 %s
+; RUN: llc -filetype=obj -mtriple x86_64-pc-linux-gnu %s -o - | elf-dump | FileCheck -check-prefix=64 %s
+
+@.str1 = private constant [6 x i8] c"Hello\00"
+@.str2 = private constant [7 x i8] c"World!\00"
+
+define i32 @main() nounwind {
+ %1 = call i32 @puts(i8* getelementptr inbounds ([6 x i8]* @.str1, i32 0, i32 0))
+ %2 = call i32 @puts(i8* getelementptr inbounds ([7 x i8]* @.str2, i32 0, i32 0))
+ ret i32 0
+}
+
+declare i32 @puts(i8* nocapture) nounwind
+
+; 32: ('e_indent[EI_CLASS]', 1)
+; 32: ('e_indent[EI_DATA]', 1)
+; 32: ('e_indent[EI_VERSION]', 1)
+; 32: ('_sections', [
+; 32: # Section 0
+; 32: (('sh_name', 0) # ''
+
+; 32: # '.text'
+; 32: # '.rel.text'
+
+; 32: ('_relocations', [
+; 32: # Relocation 0
+; 32: (('r_offset', 6)
+; 32: ('r_type', 1)
+; 32: ),
+; 32: # Relocation 1
+; 32: (('r_offset', 11)
+; 32: ('r_type', 2)
+; 32: ),
+; 32: # Relocation 2
+; 32: (('r_offset', 18)
+; 32: ('r_type', 1)
+; 32: ),
+; 32: # Relocation 3
+; 32: (('r_offset', 23)
+; 32: ('r_type', 2)
+; 32: ),
+; 32: ])
+
+; 32: ('st_bind', 0)
+; 32: ('st_type', 3)
+
+; 32: ('st_bind', 0)
+; 32: ('st_type', 3)
+
+; 32: ('st_bind', 0)
+; 32: ('st_type', 3)
+
+; 32: # 'main'
+; 32: ('st_bind', 1)
+; 32-NEXT: ('st_type', 2)
+
+; 32: # 'puts'
+; 32: ('st_bind', 1)
+; 32-NEXT: ('st_type', 0)
+
+
+; 64: ('e_indent[EI_CLASS]', 2)
+; 64: ('e_indent[EI_DATA]', 1)
+; 64: ('e_indent[EI_VERSION]', 1)
+; 64: ('_sections', [
+; 64: # Section 0
+; 64: (('sh_name', 0) # ''
+
+; 64: # '.text'
+; 64: # '.rela.text'
+
+; 64: ('_relocations', [
+; 64: # Relocation 0
+; 64: (('r_offset', 5)
+; 64: ('r_type', 11)
+; 64: ('r_addend', 0)
+; 64: ),
+; 64: # Relocation 1
+; 64: (('r_offset', 10)
+; 64: ('r_type', 2)
+; 64: ('r_addend', -4)
+; 64: ),
+; 64: # Relocation 2
+; 64: (('r_offset', 15)
+; 64: ('r_type', 11)
+; 64: ('r_addend', 6)
+; 64: ),
+; 64: # Relocation 3
+; 64: (('r_offset', 20)
+; 64: ('r_type', 2)
+; 64: ('r_addend', -4)
+; 64: ),
+; 64: ])
+
+; 64: ('st_bind', 0)
+; 64: ('st_type', 3)
+
+; 64: ('st_bind', 0)
+; 64: ('st_type', 3)
+
+; 64: ('st_bind', 0)
+; 64: ('st_type', 3)
+
+; 64: # 'main'
+; 64-NEXT: ('st_bind', 1)
+; 64-NEXT: ('st_type', 2)
+
+; 64: # 'puts'
+; 64-NEXT: ('st_bind', 1)
+; 64-NEXT: ('st_type', 0)
diff --git a/test/Scripts/elf-dump b/test/Scripts/elf-dump
new file mode 100755
index 0000000..6572163
--- /dev/null
+++ b/test/Scripts/elf-dump
@@ -0,0 +1,225 @@
+#!/usr/bin/env python
+
+import struct
+import sys
+import StringIO
+
+class Reader:
+ def __init__(self, path):
+ if path == "-":
+ # Snarf all the data so we can seek.
+ self.file = StringIO.StringIO(sys.stdin.read())
+ else:
+ self.file = open(path, "rb")
+ self.isLSB = None
+ self.is64Bit = None
+
+ def seek(self, pos):
+ self.file.seek(pos)
+
+ def read(self, N):
+ data = self.file.read(N)
+ if len(data) != N:
+ raise ValueError, "Out of data!"
+ return data
+
+ def read8(self):
+ return ord(self.read(1))
+
+ def read16(self):
+ return struct.unpack('><'[self.isLSB] + 'H', self.read(2))[0]
+
+ def read32(self):
+ return struct.unpack('><'[self.isLSB] + 'I', self.read(4))[0]
+
+ def read32S(self):
+ return struct.unpack('><'[self.isLSB] + 'i', self.read(4))[0]
+
+ def read64(self):
+ return struct.unpack('><'[self.isLSB] + 'Q', self.read(8))[0]
+
+ def read64S(self):
+ return struct.unpack('><'[self.isLSB] + 'q', self.read(8))[0]
+
+ def readWord(self):
+ if self.is64Bit:
+ return self.read64()
+ else:
+ return self.read32()
+
+ def readWordS(self):
+ if self.is64Bit:
+ return self.read64S()
+ else:
+ return self.read32S()
+
+class StringTable:
+ def __init__(self, strings):
+ self.string_table = strings
+
+ def __getitem__(self, index):
+ end = self.string_table.index('\x00', index)
+ return self.string_table[index:end]
+
+class Section:
+ def __init__(self, f):
+ self.sh_name = f.read32()
+ self.sh_type = f.read32()
+ self.sh_flags = f.readWord()
+ self.sh_addr = f.readWord()
+ self.sh_offset = f.readWord()
+ self.sh_size = f.readWord()
+ self.sh_link = f.read32()
+ self.sh_info = f.read32()
+ self.sh_addralign = f.readWord()
+ self.sh_entsize = f.readWord()
+
+ def dump(self, shstrtab, f, strtab, dumpdata):
+ print " (('sh_name', %d) # %r" % (self.sh_name, shstrtab[self.sh_name])
+ print " ('sh_type', %d)" % self.sh_type
+ print " ('sh_flags', %d)" % self.sh_flags
+ print " ('sh_addr', %d)" % self.sh_addr
+ print " ('sh_offset', %d)" % self.sh_offset
+ print " ('sh_size', %d)" % self.sh_size
+ print " ('sh_link', %d)" % self.sh_link
+ print " ('sh_info', %d)" % self.sh_info
+ print " ('sh_addralign', %d)" % self.sh_addralign
+ print " ('sh_entsize', %d)" % self.sh_entsize
+ if self.sh_type == 2: # SHT_SYMTAB
+ print " ('_symbols', ["
+ dumpSymtab(f, self, strtab)
+ print " ])"
+ elif self.sh_type == 4 or self.sh_type == 9: # SHT_RELA / SHT_REL
+ print " ('_relocations', ["
+ dumpRel(f, self, self.sh_type == 4)
+ print " ])"
+ elif dumpdata:
+ f.seek(self.sh_offset)
+ print " ('_section_data', %r)" % f.read(self.sh_size)
+ print " ),"
+
+def dumpSymtab(f, section, strtab):
+ entries = section.sh_size // section.sh_entsize
+
+ for index in range(entries):
+ f.seek(section.sh_offset + index * section.sh_entsize)
+ print " # Symbol %d" % index
+ name = f.read32()
+ print " (('st_name', %d) # %r" % (name, strtab[name])
+ if not f.is64Bit:
+ print " ('st_value', %d)" % f.read32()
+ print " ('st_size', %d)" % f.read32()
+ st_info = f.read8()
+ print " ('st_bind', %d)" % (st_info >> 4)
+ print " ('st_type', %d)" % (st_info & 0xf)
+ print " ('st_other', %d)" % f.read8()
+ print " ('st_shndx', %d)" % f.read16()
+ if f.is64Bit:
+ print " ('st_value', %d)" % f.read64()
+ print " ('st_size', %d)" % f.read64()
+ print " ),"
+
+def dumpRel(f, section, dumprela = False):
+ entries = section.sh_size // section.sh_entsize
+
+ for index in range(entries):
+ f.seek(section.sh_offset + index * section.sh_entsize)
+ print " # Relocation %d" % index
+ print " (('r_offset', %d)" % f.readWord()
+ r_info = f.readWord()
+ if f.is64Bit:
+ print " ('r_sym', %d)" % (r_info >> 32)
+ print " ('r_type', %d)" % (r_info & 0xffffffff)
+ else:
+ print " ('r_sym', %d)" % (r_info >> 8)
+ print " ('r_type', %d)" % (r_info & 0xff)
+ if dumprela:
+ print " ('r_addend', %d)" % f.readWordS()
+ print " ),"
+
+def dumpELF(path, opts):
+ f = Reader(path)
+
+ magic = f.read(4)
+ assert magic == '\x7FELF'
+
+ fileclass = f.read8()
+ if fileclass == 1: # ELFCLASS32
+ f.is64Bit = False
+ elif fileclass == 2: # ELFCLASS64
+ f.is64Bit = True
+ else:
+ raise ValueError, "Unknown file class %d" % fileclass
+ print "('e_indent[EI_CLASS]', %d)" % fileclass
+
+ byteordering = f.read8()
+ if byteordering == 1: # ELFDATA2LSB
+ f.isLSB = True
+ elif byteordering == 2: # ELFDATA2MSB
+ f.isLSB = False
+ else:
+ raise ValueError, "Unknown byte ordering %d" % byteordering
+ print "('e_indent[EI_DATA]', %d)" % byteordering
+
+ print "('e_indent[EI_VERSION]', %d)" % f.read8()
+ print "('e_indent[EI_OSABI]', %d)" % f.read8()
+ print "('e_indent[EI_ABIVERSION]', %d)" % f.read8()
+
+ f.seek(16) # Seek to end of e_ident.
+
+ print "('e_type', %d)" % f.read16()
+ print "('e_machine', %d)" % f.read16()
+ print "('e_version', %d)" % f.read32()
+ print "('e_entry', %d)" % f.readWord()
+ print "('e_phoff', %d)" % f.readWord()
+ e_shoff = f.readWord()
+ print "('e_shoff', %d)" % e_shoff
+ print "('e_flags', %d)" % f.read32()
+ print "('e_ehsize', %d)" % f.read16()
+ print "('e_phentsize', %d)" % f.read16()
+ print "('e_phnum', %d)" % f.read16()
+ e_shentsize = f.read16()
+ print "('e_shentsize', %d)" % e_shentsize
+ e_shnum = f.read16()
+ print "('e_shnum', %d)" % e_shnum
+ e_shstrndx = f.read16()
+ print "('e_shstrndx', %d)" % e_shstrndx
+
+ # Read all section headers
+ sections = []
+ for index in range(e_shnum):
+ f.seek(e_shoff + index * e_shentsize)
+ s = Section(f)
+ sections.append(s)
+
+ # Read .shstrtab so we can resolve section names
+ f.seek(sections[e_shstrndx].sh_offset)
+ shstrtab = StringTable(f.read(sections[e_shstrndx].sh_size))
+
+ # Get the symbol string table
+ strtab = None
+ for section in sections:
+ if shstrtab[section.sh_name] == ".strtab":
+ f.seek(section.sh_offset)
+ strtab = StringTable(f.read(section.sh_size))
+ break
+
+ print "('_sections', ["
+ for index in range(e_shnum):
+ print " # Section %d" % index
+ sections[index].dump(shstrtab, f, strtab, opts.dumpSectionData)
+ print "])"
+
+if __name__ == "__main__":
+ from optparse import OptionParser, OptionGroup
+ parser = OptionParser("usage: %prog [options] {files}")
+ parser.add_option("", "--dump-section-data", dest="dumpSectionData",
+ help="Dump the contents of sections",
+ action="store_true", default=False)
+ (opts, args) = parser.parse_args()
+
+ if not args:
+ args.append('-')
+
+ for arg in args:
+ dumpELF(arg, opts)
diff --git a/test/Scripts/elf-dump.bat b/test/Scripts/elf-dump.bat
new file mode 100644
index 0000000..9c70808
--- /dev/null
+++ b/test/Scripts/elf-dump.bat
@@ -0,0 +1,7 @@
+@echo off
+
+@rem We need to set -u to treat stdin as binary. Python 3 has support for doing
+@rem this in code, but I haven't found a way to do this in 2.6 yet.
+
+%PYTHON_EXECUTABLE% -u %LLVM_SRC_ROOT%\test\Scripts\elf-dump %1 %2 %3 %4 %5 %6 %7 %8 %9
+
generated by cgit v1.1 at 2025-02-11 02:34:43 +0000