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| author |  Christian Hesse <mail@eworm.de> | 2016-05-03 21:38:14 +0200 |
|---|---|---|
| committer | Christian Hesse <mail@eworm.de> | 2016-05-03 21:38:14 +0200 |
| commit | e8b6f34ad12938dd58b7896d11ec543258ae7167 (patch) | |
| tree | e7a02814c04f3ddefac310cd4c39df1bccdc4c04 | |
| parent | 59d4ae48a1d3545b909b0d8f89211828eee0d617 (diff) | |
| download | nullshell-e8b6f34ad12938dd58b7896d11ec543258ae7167.tar.gz nullshell-e8b6f34ad12938dd58b7896d11ec543258ae7167.tar.zst | |
fix compiler and linker flags and produce binaries with full RELRO
| -rw-r--r-- | Makefile | 14 |
1 files changed, 10 insertions, 4 deletions
@@ -1,12 +1,18 @@ # nullshell - do nothing but print asterisks, can be used for login shell PREFIX := /usr -CP := cp + +# commands CC := gcc -MD := markdown +CP := cp INSTALL := install +MD := markdown RM := rm -CFLAGS += -std=c11 -O2 -Wall -Werror + +# flags +CFLAGS += -std=c11 -O2 -fPIC -Wall -Werror +LDFLAGS += -Wl,-z,now -Wl,-z,relro -pie + # this is just a fallback in case you do not use git but downloaded # a release tarball... VERSION := 0.0.6 @@ -14,7 +20,7 @@ VERSION := 0.0.6 all: nullshell README.html nullshell: nullshell.c config.h version.h - $(CC) $(CFLAGS) $(LDFLAGS) nullshell.c -o nullshell + $(CC) $(CFLAGS) $(LDFLAGS) -o nullshell nullshell.c version.h: $(wildcard .git/HEAD .git/index .git/refs/tags/*) Makefile echo "#ifndef VERSION" > $@ |