star-sim

commit ea77610582e13cfc663faab184bc40bc12fe4292
parent 20e5577ee6e1fdba329b254c6085de10f1dfdb60
Author: Amin Mesbah <mesbahamin@gmail.com>
Date:   Sun,  9 Jul 2017 21:52:32 -0700

Use gprof for performance profiling.

The debug version is now compiled with the `-pg` tag, which enables
profiling with gprof. `make profile` compiles the program, runs it, and
generates a file with detailed profiling information.

Diffstat:
M
.gitignore
 | 
5
++++-
M
Makefile
 | 
7
+++++--

2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -1,3 +1,6 @@
-*.swp
+profile_output
 debug/*
 release/*
+*.out
+*.png
+*.swp
diff --git a/Makefile b/Makefile
@@ -12,13 +12,13 @@ EXE = star-garden
 
 DBGDIR = debug
 DBGEXE = $(DBGDIR)/$(EXE)
-DBGCFLAGS = -g -Og -Werror
+DBGCFLAGS = -g -Og -Werror -pg
 
 RELDIR = release
 RELEXE = $(RELDIR)/$(EXE)
 RELCFLAGS = -O2 -Os
 
-.PHONY: all clean debug memcheck prep release run
+.PHONY: all clean debug memcheck prep profile release run
 
 all: debug release
 
@@ -34,6 +34,9 @@ memcheck: debug
 prep:
 	@mkdir -p $(DBGDIR) $(RELDIR)
 
+profile: run
+	gprof $(DBGEXE) gmon.out > profile_output
+
 release: prep
 	$(CC) $(CFLAGS) $(RELCFLAGS) $(SRC) -o $(RELEXE) $(LDFLAGS)