Red Hat ENTERPRISE LINUX 4 - USING BINUTILS Manuale Utente Scaricare il pdf (Pagina 15)

Chapter 3.

nm [-a|--debug-syms] [-g|--extern-only]

[-B] [-C|--demangle[=style]] [-D|--dynamic]

[-S|--print-size] [-s|--print-armap]

[-A|-o|--print-file-name]

[-n|-v|--numeric-sort] [-p|--no-sort]

[-r|--reverse-sort] [--size-sort] [-u|--undefined-only]

[-t radix|--radix=radix] [-P|--portability]

[--target=bfdname] [-fformat|--format=format]

[--defined-only] [-l|--line-numbers] [--no-demangle]

[-V|--version] [-X 32_64] [--help] [objfile...]

gnu nm lists the symbols from object ﬁles objfile. . . . If no object ﬁles are listed as arguments, nm

assumes the ﬁle a.out.

For each symbol, nm shows:

• The symbol value, in the radix selected by options (see below), or hexadecimal by default.

• The symbol type. At least the following types are used; others are, as well, depending on the object

ﬁle format. If lowercase, the symbol is local; if uppercase, the symbol is global (external).

The symbol’s value is absolute, and will not be changed by further linking.

The symbol is in the uninitialized data section (known as BSS).

The symbol is common. Common symbols are uninitialized data. When linking, multiple com-

mon symbols may appear with the same name. If the symbol is deﬁned anywhere, the common

symbols are treated as undeﬁned references. For more details on common symbols, see the dis-

cussion of -warn-common in .

The symbol is in the initialized data section.

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.

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.

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 79 80

Nessun commento

Red Hat ENTERPRISE LINUX 4 - USING BINUTILS Manuale Utente Pagina 15