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2009-09-20 Magnus Granberg <zorry@ume.nu>
* Makefile.in We add -fno-stack-protector to
BOOT_CFLAGS, LIBCFLAGS and LIBCXXFLAGS if enable_esp yes.
* gcc/Makefile.in Add -fno-PIE and -fno-stack-protector.
Libgcc2 doesn't compile with -fstack-protector.
Crtstuff doesn't compile with -fPIE and -fstack-protector.
$(out_object_file): ix86_split_to_parts() stack smashing attack b.g.o #149292.
Add crtbeginTS.o to EXTRA_PARTS if enable_crtbeginTS yes
We add new file crtbeginTS.o if enable_crtbeginTS yes
* libgcc/Makefile.in Add crtbeginTS.o to EXTRA_PARTS if enable_crtbeginTS yes
We add new file crtbeginTS.o if enable_crtbeginTS yes
2009-07-21 Magnus Granberg <zorry@ume.nu>, Kees Cook <kees@outflux.net>
LP #344502
* libmudflap/Makefiles.in Add -fno-stack-protector -U_FORTIFY_SOURCE
to AM_CFLAGS if enable_espf yes.
--- Makefile.in 2009-04-14 10:57:33.000000000 +0200
+++ Makefile.in 2009-07-21 05:29:54.000000000 +0200
@@ -305,9 +305,17 @@
BUILD_PREFIX = @BUILD_PREFIX@
BUILD_PREFIX_1 = @BUILD_PREFIX_1@
+# Some stuff don't compile with SSP
+enable_esp = @enable_esp@
+ifeq ($(enable_esp),yes)
+ESP_NOSSP_CFLAGS = -fno-stack-protector
+else
+ESP_NOSSP_CFLAGS=
+endif
+
# Flags to pass to stage2 and later makes. They are defined
# here so that they can be overridden by Makefile fragments.
-BOOT_CFLAGS= -g -O2
+BOOT_CFLAGS= -g -O2 $(ESP_NOSSP_CFLAGS)
BOOT_LDFLAGS=
BOOT_ADAFLAGS=-gnatpg -gnata
@@ -350,9 +358,9 @@
CFLAGS = @CFLAGS@
LDFLAGS = @LDFLAGS@
-LIBCFLAGS = $(CFLAGS)
+LIBCFLAGS = $(CFLAGS) $(ESP_NOSSP_CFLAGS)
CXXFLAGS = @CXXFLAGS@
-LIBCXXFLAGS = $(CXXFLAGS) -fno-implicit-templates
+LIBCXXFLAGS = $(CXXFLAGS) -fno-implicit-templates $(ESP_NOSSP_CFLAGS)
# Only build the C compiler for stage1, because that is the only one that
# we can guarantee will build with the native compiler, and also it is the
--- gcc/Makefile.in 2009-04-29 01:16:56.000000000 +0200
+++ gcc/Makefile.in 2009-07-05 02:11:04.000000000 +0200
@@ -580,13 +580,24 @@
INHIBIT_LIBC_CFLAGS = -Dinhibit_libc
endif
+# We don't want __stack_chk_fail in crt* and libgcc2.a.
+# We don't want to compile crtbegin, crtend and crtbeginT with -fPIE.
+enable_esp = @enable_esp@
+ifeq ($(enable_esp),yes)
+ESP_NOPIE_CFLAGS = -fno-PIE
+ESP_NOSSP_CFLAGS = -fno-stack-protector
+else
+ESP_NOPIE_CFLAGS=
+ESP_NOSSP_CFLAGS=
+endif
+
# Options to use when compiling libgcc2.a.
#
LIBGCC2_DEBUG_CFLAGS = -g
LIBGCC2_CFLAGS = -O2 $(LIBGCC2_INCLUDES) $(GCC_CFLAGS) $(TARGET_LIBGCC2_CFLAGS) \
$(LIBGCC2_DEBUG_CFLAGS) $(GTHREAD_FLAGS) \
-DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
- $(INHIBIT_LIBC_CFLAGS)
+ $(INHIBIT_LIBC_CFLAGS) $(ESP_NOSSP_CFLAGS)
# Additional options to use when compiling libgcc2.a.
# Some targets override this to -isystem include
@@ -599,7 +610,7 @@
CRTSTUFF_CFLAGS = -O2 $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -g0 \
-finhibit-size-directive -fno-inline-functions -fno-exceptions \
-fno-zero-initialized-in-bss -fno-toplevel-reorder -fno-tree-vectorize \
- $(INHIBIT_LIBC_CFLAGS)
+ $(INHIBIT_LIBC_CFLAGS) $(ESP_NOSSP_CFLAGS)
# Additional sources to handle exceptions; overridden by targets as needed.
LIB2ADDEH = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde.c \
@@ -629,6 +640,12 @@
# The rules for compiling them should be in the t-* file for the machine.
EXTRA_PARTS = @extra_parts@
+# We add crtbeginTS.o to the EXTRA_PARTS list if enable_crtbeginTS = yes
+enable_crtbeginTS = @enable_crtbeginTS@
+ifeq ($(enable_crtbeginTS),yes)
+EXTRA_PARTS += crtbeginTS.o
+endif
+
# List of extra object files that should be compiled and linked with
# compiler proper (cc1, cc1obj, cc1plus).
EXTRA_OBJS = @extra_objs@
@@ -1719,8 +1736,9 @@
echo LIBGCC_SYNC = '$(LIBGCC_SYNC)' >> tmp-libgcc.mvars
echo LIBGCC_SYNC_CFLAGS = '$(LIBGCC_SYNC_CFLAGS)' >> tmp-libgcc.mvars
echo CRTSTUFF_CFLAGS = '$(CRTSTUFF_CFLAGS)' >> tmp-libgcc.mvars
- echo CRTSTUFF_T_CFLAGS = '$(CRTSTUFF_T_CFLAGS)' >> tmp-libgcc.mvars
+ echo CRTSTUFF_T_CFLAGS = '$(CRTSTUFF_T_CFLAGS) $(ESP_NOPIE_CFLAGS)' >> tmp-libgcc.mvars
echo CRTSTUFF_T_CFLAGS_S = '$(CRTSTUFF_T_CFLAGS_S)' >> tmp-libgcc.mvars
+ echo enable_crtbeginTS = '$(enable_crtbeginTS)' >> tmp-libgcc.mvars
mv tmp-libgcc.mvars libgcc.mvars
@@ -1754,12 +1771,14 @@
$(T)crtbegin.o: crtstuff.c $(GCC_PASSES) $(TCONFIG_H) auto-host.h \
gbl-ctors.h stmp-int-hdrs tsystem.h coretypes.h $(TM_H)
$(GCC_FOR_TARGET) $(CRTSTUFF_CFLAGS) $(CRTSTUFF_T_CFLAGS) \
+ $(ESP_NOPIE_CFLAGS) \
-c $(srcdir)/crtstuff.c -DCRT_BEGIN \
-o $(T)crtbegin$(objext)
$(T)crtend.o: crtstuff.c $(GCC_PASSES) $(TCONFIG_H) auto-host.h \
gbl-ctors.h stmp-int-hdrs tsystem.h coretypes.h $(TM_H)
$(GCC_FOR_TARGET) $(CRTSTUFF_CFLAGS) $(CRTSTUFF_T_CFLAGS) \
+ $(ESP_NOPIE_CFLAGS) \
-c $(srcdir)/crtstuff.c -DCRT_END \
-o $(T)crtend$(objext)
@@ -1780,9 +1800,19 @@
$(T)crtbeginT.o: crtstuff.c $(GCC_PASSES) $(TCONFIG_H) auto-host.h \
gbl-ctors.h stmp-int-hdrs tsystem.h coretypes.h $(TM_H)
$(GCC_FOR_TARGET) $(CRTSTUFF_CFLAGS) $(CRTSTUFF_T_CFLAGS) \
+ $(ESP_NOPIE_CFLAGS) \
-c $(srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFT_O \
-o $(T)crtbeginT$(objext)
+# This is a version of crtbegin for -static -fPIE links if espf is enable.
+ifeq ($(enable_crtbeginTS),yes)
+$(T)crtbeginTS.o: crtstuff.c $(GCC_PASSES) $(TCONFIG_H) auto-host.h \
+ gbl-ctors.h stmp-int-hdrs tsystem.h coretypes.h $(TM_H)
+ $(GCC_FOR_TARGET) $(CRTSTUFF_CFLAGS) $(CRTSTUFF_T_CFLAGS_S) \
+ -c $(srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFT_O -DCRTSTUFFS_O \
+ -o $(T)crtbeginTS$(objext)
+endif
+
# Compile the start modules crt0.o and mcrt0.o that are linked with
# every program
$(T)crt0.o: s-crt0 ; @true
@@ -3057,7 +3083,7 @@
output.h $(INSN_ATTR_H) $(SYSTEM_H) $(TOPLEV_H) $(TARGET_H) libfuncs.h \
$(TARGET_DEF_H) $(FUNCTION_H) $(SCHED_INT_H) $(TM_P_H) $(EXPR_H) \
langhooks.h $(GGC_H) $(OPTABS_H) $(REAL_H) tm-constrs.h $(GIMPLE_H)
- $(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) \
+ $(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(ESP_NOSSP_CFLAGS)\
$(out_file) $(OUTPUT_OPTION)
# Build auxiliary files that support ecoff format.
--- libgcc/Makefile.in 2009-04-10 01:23:07.000000000 +0200
+++ libgcc/Makefile.in 2009-09-08 03:42:47.000000000 +0200
@@ -280,6 +280,12 @@
gen-hide-list = echo > \$@
endif
+# We add crtbeginTS.o to the EXTRA_PARTS list if enable_crtbeginTS = yes
+enable_libgcc_crtbeginTS = $(enable_crtbeginTS)
+ifeq ($(enable_libgcc_crtbeginTS),yes)
+EXTRA_PARTS += crtbeginTS.o
+endif
+
ifneq ($(EXTRA_PARTS),)
extra-parts = libgcc-extra-parts
INSTALL_PARTS = $(EXTRA_PARTS)
@@ -831,6 +837,13 @@
crtbeginT.o: $(gcc_srcdir)/crtstuff.c
$(crt_compile) $(CRTSTUFF_T_CFLAGS) \
-c $(gcc_srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFT_O
+
+# This is a version of crtbegin for -static -fPIE links.
+ifeq ($(enable_libgcc_crtbeginTS),yes)
+crtbeginTS.o: $(gcc_srcdir)/crtstuff.c
+ $(crt_compile) $(CRTSTUFF_T_CFLAGS_S) \
+ -c $(gcc_srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFT_O -DCRTSTUFFS_O
+endif
endif
# Build extra startfiles in the libgcc directory.
--- libmudflap/Makefile.in 2009-04-29 01:16:56.000000000 +0200
+++ libmudflap/Makefile.in 2009-07-21 05:41:56.000000000 +0200
@@ -253,10 +253,18 @@
MAINT_CHARSET = latin1
SUBDIRS = testsuite
+# Some stuff don't compile with PIE or SSP
+enable_esp = @enable_esp@
+ifeq ($(enable_esp),yes)
+NO_ESP_CFLAGS = -fno-stack-protector -U_FORTIFY_SOURCE
+else
+NO_ESP_CFLAGS =
+endif
+
# May be used by various substitution variables.
gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER)
-AM_CFLAGS = -Wall $(SECTION_FLAGS)
-@LIBMUDFLAPTH_FALSE@libmudflapth =
+AM_CFLAGS = -Wall $(SECTION_FLAGS) $(NO_ESP_CFLAGS)
+@LIBMUDFLAPTH_FALSE@libmudflapth =
@LIBMUDFLAPTH_TRUE@libmudflapth = libmudflapth.la
toolexeclib_LTLIBRARIES = libmudflap.la $(libmudflapth)
libsubincludedir = $(libdir)/gcc/$(target_noncanonical)/$(gcc_version)/include
|
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