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nm vmlinux 输出的symbols按照什么顺序排列的？
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本文导语: 我使用nm vmlinux >wolf 输出一个wolf文件,有4个问题 1，请问symbol在wolf文件中是按照什么顺序排列的？好像不是按照地址的顺序哦。 2，c0120520 t ekey c0333a90 B elf_platform c015ceb8 T elevator_init 这些...
我使用nm vmlinux >wolf 输出一个wolf文件,有4个问题
1，请问symbol在wolf文件中是按照什么顺序排列的？好像不是按照地址的顺序哦。
2，c0120520 t ekey
c0333a90 B elf_platform
c015ceb8 T elevator_init
这些地址和symbol之间的 "t" "B" ”T" 表示什么？ 还有好多呢，有"d",“r"等等。
3，我想了解nm 输出的格式 应该参考哪方面的资料，我执行man nm 没找到需要的东西啊。
4，System.map文件中的symbol是按照怎样的顺序排列的，我应该参考什么资料？
以上，多谢！！！
1，请问symbol在wolf文件中是按照什么顺序排列的？好像不是按照地址的顺序哦。
2，c0120520 t ekey
c0333a90 B elf_platform
c015ceb8 T elevator_init
这些地址和symbol之间的 "t" "B" ”T" 表示什么？ 还有好多呢，有"d",“r"等等。
3，我想了解nm 输出的格式 应该参考哪方面的资料，我执行man nm 没找到需要的东西啊。
4，System.map文件中的symbol是按照怎样的顺序排列的，我应该参考什么资料？
以上，多谢！！！
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man nm 里面有吧
没有特定指明的话，一般按字母顺序排列
"A" The symbolbs value is absolute, and will not be changed by further linking.
"B"
"b" The symbol is in the uninitialized data section (known as BSS).
"C" The symbol is common. Common symbols are uninitialized data. When linking,
multiple common symbols may appear with the same name. If the symbol is
defined anywhere, the common symbols are treated as undefined references.
"D"
"d" The symbol is in the initialized data section.
"G"
"g" The symbol is in an initialized data section for small objects. Some object
file formats permit more efficient access to small data objects, such as a
global int variable as opposed to a large global array.
"I" The symbol is an indirect reference to another symbol. This is a GNU
extension to the a.out object file format which is rarely used.
"i" The symbol is in a section specific to the implementation of DLLs.
"N" The symbol is a debugging symbol.
"p" The symbols is in a stack unwind section.
"R"
"r" The symbol is in a read only data section.
"S"
"s" The symbol is in an uninitialized data section for small objects.
"T"
"t" The symbol is in the text (code) section.
"U" The symbol is undefined.
"V"
"v" The symbol is a weak object. When a weak defined symbol is linked with a
normal defined symbol, the normal defined symbol is used with no error.
When a weak undefined symbol is linked and the symbol is not defined, the
value of the weak symbol becomes zero with no error. On some systems,
uppercase indicates that a default value has been specified.
"W"
"w" The symbol is a weak symbol that has not been specifically tagged as a weak
object symbol. When a weak defined symbol is linked with a normal defined
symbol, the normal defined symbol is used with no error. When a weak
undefined symbol is linked and the symbol is not defined, the value of the
symbol is determined in a system-specific manner without error. On some
systems, uppercase indicates that a default value has been specified.
"-" The symbol is a stabs symbol in an a.out object file. In this case, the
next values printed are the stabs other field, the stabs desc field, and the
stab type. Stabs symbols are used to hold debugging information.
"?" The symbol type is unknown, or object file format specific.
没有特定指明的话，一般按字母顺序排列
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http://blog.csdn.net/babylon_0049/archive/2009/04/20/4096005.aspx
这里很详细
这里很详细
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