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use unsigned integer for all offset

This commit is contained in:
Hung-Chi Su 2015-09-06 01:21:18 +08:00
parent 793ca13f03
commit 22edcd99b2
1 changed files with 9 additions and 9 deletions
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18
lib/elf.rb
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@ -24,8 +24,8 @@ end
class Relplt32 < BinData::Record
endian :little
int32 :r_offset
int32 :r_info
uint32 :r_offset
uint32 :r_info
string :sym_index, :value => lambda{parse_sym_index(r_info)}
string :type, :value => lambda{parse_type(r_info)}
@ -40,7 +40,7 @@ end
class Relplt64 < BinData::Record
endian :little
int64 :r_offset
uint64 :r_offset
int64 :r_info
string :sym_index, :value => lambda{parse_sym_index(r_info)}
string :type, :value => lambda{parse_type(r_info)}
@ -56,7 +56,7 @@ end
class Relaplt32 < BinData::Record
endian :little
int32 :r_offset
uint32 :r_offset
int32 :r_info
int32 :r_addend
string :sym_index, :value => lambda{parse_sym_index(r_info)}
@ -73,7 +73,7 @@ end
class Relaplt64 < BinData::Record
endian :little
int64 :r_offset
uint64 :r_offset
int64 :r_info
int64 :r_addend
string :sym_index, :value => lambda{parse_sym_index(r_info)}
@ -108,9 +108,9 @@ class ElfParser < BinData::Record
# This is the memory address of the entry point from where the process starts executing. This field is either 32 or 64 bits long depending on the format defined earlier.
choice :e_entry, :selection => lambda{e_ident.ei_class}, :choices => {1 => :int32, 2 => :int64}
# Points to the start of the program header table. It usually follows the fi header immediately making the offset 0x40 for 64-bit ELF executables.
choice :e_phoff, :selection => lambda{e_ident.ei_class}, :choices => {1 => :int32, 2 => :int64}
choice :e_phoff, :selection => lambda{e_ident.ei_class}, :choices => {1 => :uint32, 2 => :uint64}
# Points to the start of the section header table.
choice :e_shoff, :selection => lambda{e_ident.ei_class}, :choices => {1 => :int32, 2 => :int64}
choice :e_shoff, :selection => lambda{e_ident.ei_class}, :choices => {1 => :uint32, 2 => :uint64}
# Interpretation of this field depends on the target architecture.
int32 :e_flags
# Contains the size of this header, normally 64 bytes for 64-bit and 52 for 32-bit format.
@ -154,7 +154,7 @@ class ElfParser < BinData::Record
# Section virtual addr at execution
choice :sh_addr, :selection => lambda{e_ident.ei_class}, :choices => {1 => :int32, 2 => :int64}
# Section file offset
choice :sh_offset, :selection => lambda{e_ident.ei_class}, :choices => {1 => :int32, 2 => :int64}
choice :sh_offset, :selection => lambda{e_ident.ei_class}, :choices => {1 => :uint32, 2 => :uint64}
# Section size in bytes
choice :sh_size, :selection => lambda{e_ident.ei_class}, :choices => {1 => :int32, 2 => :int64}
# Link to another section
@ -374,7 +374,7 @@ class Elf
end
rel.each do |r|
result[elf.symtab[r.sym_index.to_i].name_str.to_s] = r.r_offset
result[elf.symtab[r.sym_index.to_i].name_str.to_s] = r.r_offset.to_i
end
result
end