From: Jérôme Benoit Date: Sat, 3 Mar 2018 20:06:32 +0000 (+0100) Subject: Add more code snippet from the course. X-Git-Url: https://git.piment-noir.org/?a=commitdiff_plain;h=58de8076cbe9b445aeb6c0ef7239ae14879c23d0;p=TD_SE.git Add more code snippet from the course. Signed-off-by: Jérôme Benoit --- diff --git a/.gitignore b/.gitignore index b6023f0..4d842c8 100644 --- a/.gitignore +++ b/.gitignore @@ -1,4 +1,5 @@ TD3/exo2/monexec/monexec +fils/fils mem/mem philosophe/philosophe philosophe-famine/philosophe diff --git a/fils/Makefile b/fils/Makefile new file mode 100644 index 0000000..e54bb18 --- /dev/null +++ b/fils/Makefile @@ -0,0 +1,83 @@ +# Sample Makefile to build simple project. +# +# This Makefile expect all source files (.c) to be at the same level, in the +# current working directory. +# +# It will automatically generate dependencies, compile all files, and produce a +# binary using the provided name. +# +# Set BINARY_NAME to the name of the binary file to build. +# Set BUILD_TYPE to either debug or release +# +# Automatic dependencies code from: +# http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr +BINARY_NAME=fils +BUILD_TYPE=debug +#BUILD_TYPE=release +#LDLIBS=-lrt + +# ==================================== +# DO NOT CHANGE STUFF BEYOND THIS LINE +# ==================================== + +all: $(BINARY_NAME) + +CC=gcc +LD=gcc + +WARN_FLAGS = -Wall -Wextra +STD_FLAG = -std=gnu11 + +ifeq ($(BUILD_TYPE),debug) +BUILDDIR := .build/debug +DEBUG_FLAG = -g +DEBUG = 1 +STRIP_FLAG = +OPTI_FLAG = -O0 +else +BUILDDIR := .build/release +DEBUG_FLAG = +DEBUG = 0 +STRIP_FLAG = -s +OPTI_FLAG = -O3 +endif + +CFLAGS := -DDEBUG=$(DEBUG) $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) +LDFLAGS := $(LDFLAGS) $(STRIP_FLAG) + +OBJDIR := $(BUILDDIR)/objs +$(shell mkdir -p $(OBJDIR)) + +SRCS=$(wildcard *.c) +OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(SRCS)) + +DEPDIR := $(BUILDDIR)/deps +$(shell mkdir -p $(DEPDIR)) +DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$*.Td +POSTCOMPILE = mv -f $(DEPDIR)/$*.Td $(DEPDIR)/$*.d + +$(BINARY_NAME): $(OBJS) + @echo "[LD ] $@" + @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ + +$(OBJDIR)/%.o: %.c $(DEPDIR)/%.d + @echo "[C ] $*" + @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@ + @$(POSTCOMPILE) + +$(DEPDIR)/%.d: ; + +.PRECIOUS: $(DEPDIR)/%.d + +include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS)))) + +clean: + @echo "[CLN]" + -@rm -r $(BUILDDIR) + -@rm $(BINARY_NAME) + +disassemble: $(BINARY_NAME) + objdump -d $< | less + +symbols: $(BINARY_NAME) + objdump -t $< | sort | less diff --git a/fils/fils.c b/fils/fils.c new file mode 100644 index 0000000..49b08db --- /dev/null +++ b/fils/fils.c @@ -0,0 +1,16 @@ +#include +#include +#include + +int main() { + pid_t fils_pid; + fils_pid = fork(); + + if (fils_pid == 0) { + printf("Je suis le fils avec pid %d\n", getpid()); + } else if (fils_pid > 0) { + printf("Je suis le pere avec pid %d\n", getpid()); + } else { + printf("Erreur a la creation du fils\n"); + } +}