Add a PROFILE mode

* Makefile: Change FOOFLAGS defaults to appropriate values when
  $(PROFILE) is defined.
* rootdir.c: Add an "exit" file, which causes exit to be called
  when looked up, so that profiling data can be written to disk.

1 files changed, 9 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index b8c055f..a397522 100644
--- a/Makefile
+++ b/Makefile
@@ -6,13 +6,21 @@ LIBS = -lnetfs -lps
 CC = gcc
 CFLAGS = -Wall -g
 CPPFLAGS =
+LDFLAGS =
+
+ifdef PROFILE
+CFLAGS= -g -pg
+CPPFLAGS= -DPROFILE
+LDFLAGS= -static
+LIBS= -lnetfs -lfshelp -liohelp -lps -lports -lthreads -lihash -lshouldbeinlibc
+endif
 
 CPPFLAGS += -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64
 
 all: $(TARGET)
 
 $(TARGET): $(OBJS)
-	$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 clean:
 	$(RM) $(TARGET) $(OBJS)