Zilog Z80380 Manual de usuario descargar pdf (Pagina 56)

Linker symbols Linking Files

3–6 UM004001-COR1103

• linker-command-file is the command file to be linked by the linker. Sample command

files are provided in the lib directory. See

Table 3-1 for a list of command files that are

include with the C-compiler.

Linker Command Line example

The following example shows how to invoke the linker using the DOS command line.

zld -otest -A lib-path\z380boot.o test.o lib-path\libc.lib

lib-path\z380.link -mtest.map

This example generates a test.ld, test.hex, test.dat, test.sym and

test.map as output. The lib-path is the (c-compiler installation path)\lib, and test.o

is the object file corresponding to the C file created after compiling and assembling.

For more information on the linker command line see Linker Command Line on page 3-10.

LINKER SYMBOLS

The linker command file defines the symbols that are used by the C run-time initialization

file to initialize the stack pointer, register pointer and clear the BSS section.

Table 3-2 shows

the symbols that are used by the linker.

TABLE 3-2. LINKER SYMBOLS

Symbol Description

BSS_BASE Base of .BSS section

BSS_LENGTH Length of .BSS section

TOS Top of stack

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 115 116

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Zilog Z80380 Manual de usuario Pagina 56