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syms(4)
NAME
syms - Symbol table
SYNOPSIS
#include <sym.h>
#include <symconst.h>
DESCRIPTION
The symbol table departs from the standard COFF symbol table. The symbol
table consists of many tables unbundling information usually found in the
one COFF symbol table. The symbol table should be viewed as a handcrafted,
network-style database designed for space and access efficiency.
The following structures or tables appear in the symbol table:
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Table Contents
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Symbolic header Sizes and locations of all other tables
File descriptors Per file locations for other tables
Procedure descriptors
Frame information and location of
procedure information
Local symbols
Local type, local variable, and scoping
information
Local strings
String space for local symbols
Line numbers
Compacted by encoding, contains a line
per instruction
Relative file desc.
Indirection for inter-file symbol
access
Optimization symbols
To be defined
Auxiliary symbols
Data type information for local and
external symbols
External symbols
Global text and data symbols
External strings
String space for external symbols
Dense numbers
Index pairs (file, symbol) for compiler
use (-oldc only)
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External and local symbols are both represented using the following
structure:
struct
{
long iss; /* index into string space */
long value; /* address, size, etc.; depends on sc and st */
unsigned st: 6; /* symbol type (e.g., local, param, etc.) */
unsigned sc: 5; /* storage class (e.g., text, bss, etc.) */
unsigned reserved: 1;
unsigned index; /* index to symbol or auxiliary tables */
};
RELATED INFORMATION
ldfcn(4).
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Index for Section 4 |
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Alphabetical listing for S |
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Top of page |
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