Epson S5U1C17001C, Manual

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11-8
EPSOn
S5U1C17001C ManUal
(C COMPilEr PaCkagE fOr S1C17 faMily) (Ver. 1.5.0)
11 OTHEr TOOlS
11.1.6 Dependency list
This section explains the dependency list when no suffix definition is used.
Dependency list format
The make is executed according to a dependency list that is written in the following formats:
Format 1: <target file name>
:
<dependent file name 1>
[^
<dependent file name2>...
]
[ TAB
<command 1>
TAB
<command 2>
: ]
Format 2:
<target name>
:
[ TAB
<command 1>
TAB
<command 2>
: ]
• ^ denotes a space.
• [ ] indicates that entries in brackets can be omitted.
• The command lines must begin with a TAB (space is not allowed).
format 1
In Format 1, the dependent files necessary to obtain a target file are specified, and in cases when no target
file has been created or there is a dependent file newer than the target file, the command that follows is
executed.
Normally, a startup command of a tool is described as the command. The output file of the tool is specified
as the target file and the input files are specified as the dependent files.
Example:
main.o : $(SRC1_DIR)/main.c
$(CC) $(CFLAGS) $(SRC1_DIR)/main.c
In this example, the target file
main.o
depends on
main.c
. If the target file
main.o
does not exist or
main.c
is newer than
main.o
(when the source is modified after it has been compiled), the command
"
$(CC) $(CFLAGS) $(SRC1_DIR)/main.c
" (compilation by
xgcc
) is executed.
format 2
If no dependent file is written,
<target name>
is used only as a label. By specifying a
<target name>
with
the make.exe startup command, it is possible to execute the written command.
Example: Commands executed by
make -f test.mak clean
clean:
$(RM) -f $(OBJS) $(TARGET).elf $(TARGET).map $(DEPS)
If no <target name> is specified in the startup command, the first dependency list written in the file is used
to execute the make process.
An executable command (with
.exe
) and its parameters can be written as a command. If no command has
been written, nothing is executed. However, if a suffix definition with the extensions of the target file and
the first dependent file is described, the command in the suffix definition is executed.