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CHAPTER 1. THE SYST EM

Listing 1.2: Makeﬁle for simpleprog (Listing 1.1)

# The na me o f t h e p rog ram we w ant t o c o m pi l e

PROGRAM = s i m p l e p r o g

# The d i r e c t o r y c o n t a i n i n g t h e o pen r i s c s u p p o r t d i r

LIBDIR = . . / l i b

INCLUDEDIR = . . / i n c l u d e

CFLAGS += −I $ ( INCLUDEDIR) −Wal l −W s t r i c t−p r o t o t y p e s

CFLAGS += −Werr or−i m p l i c i t −f u n c t i o n −d e c l a r a t i o n

CFLAGS += −Os −g −fno−b u i l t i n −f o mi t−fram e−p o i n t e r − n o s t d l i b

# T o o l c h a i n c o n f i g u r a t i o n

AS = o r3 2−u c l i n u x−as

CC = or 32−uc l i n u x−gc c

LD = or 32−uc l i n u x−l d

DUMP = or32−u c l i n u x−objdump −S −D −EB

COPY = or32−u c l i n u x−obj c o p y

SIM = or 32−uclinux−sim

# F la g s t o LD, n ee d t o i n c l u d e a l i n k s c r i p t h e r e

LDFLAGS = −Tram . l d

OBJFILES=$ (PROGRAM) . o

HEXFILE=$ (PROGRAM ) . hex

SIMPROGRAM=$ (PROGRAM) sim

a l l : $ (PROGRAM) $ ( HEXFILE) $ (SIMPROGRAM)

# The m i n im a l s u p p o r t l i b c o n t a i n i n g p r i n t f / s l e e p / e t c

o p e n r i s c l i b : $ ( LIBDIR ) / o p e n r i s c l i b . a $ ( LI BDIR ) / c r t . o $ ( LIBDIR ) / r e s e t . o

# Commands t o make t h e ope n r i s c s u p p o r t l i b

$ ( LIBDIR ) / o p e n r i s c l i b . a :

cd $ ( LIBDIR ) && $ (MAKE)

$ ( LIBDIR ) / c r t . o :

cd $ ( LIBDIR ) && $ (MAKE)

$ ( LIBDIR ) / r e s e t . o :

cd $ ( LIBDIR ) && $ (MAKE)

. S . o :

$ (CC) $ ( CFLAGS) −c $<

. c . o :

$ (CC) −c $ (CFLAGS) −o $@ $<

# L i nk t h e pr ogr am t o g e t h e r w i t h t h e s u p p o r t l i b

# ( And c r e a t e a t e x t f i l e w i t h t h e d i s a s s e m b l e d c o n t e n t s o f t h e p rogr am )

$ (PROGRAM) : $ ( OBJFILES ) ram . l d o p e n r i s c l i b

$ (LD) − B s t a t i c $ ( LIBDIR ) / c r t . o $ ( OBJFILES ) $ ( LIBDIR ) / o p e n r i s c l i b . a \

$ (LDFLAGS) −o $ (PROGRAM)

$ (DUMP) $ (PROGRAM) > $ (PROGRAM ) . t x t

# C r ea t e an i n t e l h ex dump o f t h e pr ogra m

$ ( HEXFILE ) : $ (PROGRAM)

$ (COPY) −O i h e x $ (PROGRAM) $ ( HEXFILE )

# C r ea t e a b i n a r y we c an s i m u l a t e w i t h t h e o p e n r i s c s i m u l a t o r

$ (SIMPROGRAM ) : $ ( PROGRAM) ram . l d o p e n r i s c l i b

$ (LD) − B s t a t i c $ ( LIBDIR ) / r e s e t . o $ (PROGRAM) $ ( LDFLAGS) −o $ (SIMPROGRAM)

$ (DUMP) $ (SIMPROGRAM) > $ (SIMPROGRAM ) . t x t

# Run t h e s i m u l a t o r on t h e prog ram

sim : $ (SIMPROGRAM)

$ ( SIM ) − i −f sim . c f g $ (SIMPROGRAM)

c l e a n :

rm −f ∗ . o ∗~ sim . p r o f i l e $ (PROGRAM) $ (SIMPROGRAM) $ ( HEXFILE ) ∗ . t x t u a r t 0 . t x u a r t 0 . r x

We place all the segments of simpleprog at the address 0x2000 with the link

script shown in Listing 1.3.

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Cypress DCT-1D Guida Utente Pagina 18

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