housekeeping

[ohliumliu]

• makefile
• testing procedure
• gdb
• link to local so. do I have to ldconfig ...

[ohliumliu]

make file: reference: get a simple make file from here and adapt it for gsl testing

#
# 'make depend' uses makedepend to automatically generate dependencies 
#               (dependencies are added to end of Makefile)
# 'make'        build executable file 'mycc'
# 'make clean'  removes all .o and executable files
#

# define the C compiler to use
CC = gcc

# define any compile-time flags
CFLAGS = -Wall 

# define any directories containing header files other than /usr/include
#
# INCLUDES = -I/home/newhall/include  -I../include

# define library paths in addition to /usr/lib
#   if I wanted to include libraries not in /usr/lib I'd specify
#   their path using -Lpath, something like:
# LFLAGS = -L/home/newhall/lib  -L../lib

# define any libraries to link into executable:
#   if I want to link in libraries (libx.so or libx.a) I use the -llibname 
#   option, something like (this will link in libmylib.so and libm.so:
LIBS = -lgsl -lgslcblas -lm

# define the C source files
# SRCS = emitter.c error.c init.c lexer.c main.c symbol.c parser.c
SRCS = rng.c

# define the C object files 
#
# This uses Suffix Replacement within a macro:
#   $(name:string1=string2)
#         For each word in 'name' replace 'string1' with 'string2'
# Below we are replacing the suffix .c of all words in the macro SRCS
# with the .o suffix
#
OBJS = $(SRCS:.c=.o)

# define the executable file 
MAIN = mycc

#
# The following part of the makefile is generic; it can be used to 
# build any executable just by changing the definitions above and by
# deleting dependencies appended to the file from 'make depend'
#

.PHONY: depend clean

all:    $(MAIN)
    @echo  Simple compiler named mycc has been compiled

$(MAIN): $(OBJS) 
    $(CC) $(CFLAGS) $(INCLUDES) -o $(MAIN) $(OBJS) $(LIBS)

# this is a suffix replacement rule for building .o's from .c's
# it uses automatic variables $<: the name of the prerequisite of
# the rule(a .c file) and $@: the name of the target of the rule (a .o file) 
# (see the gnu make manual section about automatic variables)
.c.o:
    $(CC) $(CFLAGS) -c $<  -o $@

clean:
    $(RM) *.o *~ $(MAIN)

depend: $(SRCS)
    makedepend $(INCLUDES) $^

# DO NOT DELETE THIS LINE -- make depend needs it

[ohliumliu]

testing

Each folder has a test.c. It has a main() so that it can be compiled to an executable. These files use preprocessors to generate input arguments for generic testing routines.

[ohliumliu]

• Working environment is on c9. This is the push repo. The pull repo is git://git.savannah.gnu.org/gsl.git
• Installation directory is /usr/loca/lib, which is the default.
• The source is in workspace.
• Typical workflow:
  • In scratchpad, write a test case to confirm the problem. (try to modify the test cases in the source). It's helpful to export GSL_TEST_VERBOSE=1
  • In scratchpad, test the modified the code.
  • Modify the code and recompile. Confirm it works using the test case.