[gentoo-commits] gentoo commit in src/patchsets/gcc/8.1.0/gentoo: 13_all_default-ssp-fix.patch 35_all_i386_libgcc_note.GNU-stack.patch 55_all_extra-options.patch README.history

[Magnus Granberg (zorry)]

zorry       18/05/02 22:52:30

  Modified:             13_all_default-ssp-fix.patch README.history
  Added:                35_all_i386_libgcc_note.GNU-stack.patch
                        55_all_extra-options.patch
  Log:
  Add more patches for gcc 8.1.0 patchset 1.1

Revision  Changes    Path
1.2                  src/patchsets/gcc/8.1.0/gentoo/13_all_default-ssp-fix.patch

file : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/13_all_default-ssp-fix.patch?rev=1.2&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/13_all_default-ssp-fix.patch?rev=1.2&content-type=text/plain
diff : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/13_all_default-ssp-fix.patch?r1=1.1&r2=1.2

Index: 13_all_default-ssp-fix.patch
===================================================================
RCS file: /var/cvsroot/gentoo/src/patchsets/gcc/8.1.0/gentoo/13_all_default-ssp-fix.patch,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- 13_all_default-ssp-fix.patch	2 May 2018 22:17:17 -0000	1.1
+++ 13_all_default-ssp-fix.patch	2 May 2018 22:52:30 -0000	1.2
@@ -1,48 +1,32 @@
-We disable ssp on -nostdlib and -ffreestanding as we did on older gcc
-and change the buffer size.
+Disable ssp on -nostdlib, -nodefaultlibs and -ffreestanding 
+Change the buffer size.
 
---- a/gcc/c-family/c-opts.c
-+++ b/gcc/c-family/c-opts.c
-@@ -450,7 +450,14 @@
+--- a/gcc/gcc.c	2017-07-04 09:15:57.740793000 +0200
++++ b/gcc/gcc.c	2018-03-02 13:58:44.387741114 +0100
+@@ -857,6 +857,12 @@ proper position among the other output f
+ #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
+ #endif
  
-     case OPT_ffreestanding:
-       value = !value;
-+         if (global_options.x_flag_stack_protect == -1)
-+               global_options.x_flag_stack_protect = 0;
-       /* Fall through.  */
++#ifdef ENABLE_DEFAULT_SSP
++#define NO_SSP_SPEC "%{nostdlib|nodefaultlibs|ffreestanding:-fno-stack-protector} "
++#else
++#define NO_SSP_SPEC ""
++#endif
 +
-+    case OPT_nostdlib:
-+         if (global_options.x_flag_stack_protect == -1)
-+               global_options.x_flag_stack_protect = 0;
-+
-     case OPT_fhosted:
-       flag_hosted = value;
-       flag_no_builtin = !value;
---- a/gcc/c-family/c.opt
-+++ b/gcc/c-family/c.opt
-@@ -1647,6 +1647,10 @@ nostdinc++
- C++ ObjC++
- Do not search standard system include directories for C++.
- 
-+nostdlib
-+C ObjC C++ ObjC++
-+; Documented in common.opt
-+
- o
- C ObjC C++ ObjC++ Joined Separate
- ; Documented in common.opt
---- a/gcc/gcc.c
-+++ b/gcc/gcc.c
-@@ -1145,6 +1145,7 @@
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+@@ -1131,7 +1148,7 @@ static const char *cc1_options =
+  %{-version:--version}\
   %{-help=*:--help=%*}\
   %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
-  %{fsyntax-only:-o %j} %{-param*}\
-+ %{nostdlib:-nostdlib}\
+- %{fsyntax-only:-o %j} %{-param*}\
++ %{fsyntax-only:-o %j} %{-param*} " NO_SSP_SPEC "\
   %{coverage:-fprofile-arcs -ftest-coverage}\
   %{fprofile-arcs|fprofile-generate*|coverage:\
-    %{!fprofile-update=single:\
---- a/gcc/params.def
-+++ b/gcc/params.def
+    %{!fprofile-update=singel:\
+--- a/gcc/params.def	2016-03-30 09:47:40.000000000 +0200
++++ b/gcc/params.def	2016-09-19 12:56:58.443179039 +0200
 @@ -673,7 +673,7 @@ DEFPARAM (PARAM_INTEGER_SHARE_LIMIT,
  DEFPARAM (PARAM_SSP_BUFFER_SIZE,
  	  "ssp-buffer-size",



1.2                  src/patchsets/gcc/8.1.0/gentoo/README.history

file : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/README.history?rev=1.2&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/README.history?rev=1.2&content-type=text/plain
diff : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/README.history?r1=1.1&r2=1.2

Index: README.history
===================================================================
RCS file: /var/cvsroot/gentoo/src/patchsets/gcc/8.1.0/gentoo/README.history,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- README.history	2 May 2018 22:17:17 -0000	1.1
+++ README.history	2 May 2018 22:52:30 -0000	1.2
@@ -1,4 +1,8 @@
-1.0		05 May 2018
+1.1		03 May 2018
+	U 13_all_default-ssp-fix.patch
+	+ 35_all_i386_libgcc_note.GNU-stack.patch
+	+ 55_all_extra-options.patch
+1.0		03 May 2018
 	+ 92_all_sh-drop-sysroot-suffix.patch
 	+ 10_all_default-fortify-source.patch
 	+ 11_all_default-warn-format-security.patch



1.1                  src/patchsets/gcc/8.1.0/gentoo/35_all_i386_libgcc_note.GNU-stack.patch

file : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/35_all_i386_libgcc_note.GNU-stack.patch?rev=1.1&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/35_all_i386_libgcc_note.GNU-stack.patch?rev=1.1&content-type=text/plain

Index: 35_all_i386_libgcc_note.GNU-stack.patch
===================================================================
--- a/libgcc/config/i386/resms64.h	2018-01-03 11:03:58.000000000 +0100
+++ b/libgcc/config/i386/resms64.h	2018-05-01 12:59:48.942833419 +0200
@@ -57,3 +57,6 @@ MS2SYSV_STUB_END(resms64_17)
 MS2SYSV_STUB_END(resms64_18)
 
 #endif /* __x86_64__ */
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif
--- a/libgcc/config/i386/resms64f.h	2018-01-03 11:03:58.000000000 +0100
+++ b/libgcc/config/i386/resms64f.h	2018-05-01 13:00:23.422832853 +0200
@@ -55,3 +55,6 @@ MS2SYSV_STUB_END(resms64f_16)
 MS2SYSV_STUB_END(resms64f_17)
 
 #endif /* __x86_64__ */
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif
--- a/libgcc/config/i386/resms64fx.h	2018-02-26 20:46:34.000000000 +0100
+++ b/libgcc/config/i386/resms64fx.h	2018-05-01 13:06:49.682826518 +0200
@@ -62,3 +62,6 @@ MS2SYSV_STUB_END(resms64fx_16)
 MS2SYSV_STUB_END(resms64fx_17)
 
 #endif /* __x86_64__ */
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif
--- a/libgcc/config/i386/resms64x.h	2018-02-26 20:46:34.000000000 +0100
+++ b/libgcc/config/i386/resms64x.h	2018-05-01 13:07:21.702825993 +0200
@@ -63,3 +63,6 @@ MS2SYSV_STUB_END(resms64x_17)
 MS2SYSV_STUB_END(resms64x_18)
 
 #endif /* __x86_64__ */
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif
--- a/libgcc/config/i386/savms64.h	2018-01-03 11:03:58.000000000 +0100
+++ b/libgcc/config/i386/savms64.h	2018-05-01 13:07:48.952825546 +0200
@@ -57,3 +57,6 @@ MS2SYSV_STUB_END(savms64_17)
 MS2SYSV_STUB_END(savms64_18)
 
 #endif /* __x86_64__ */
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif
--- a/libgcc/config/i386/savms64f.h	2018-01-03 11:03:58.000000000 +0100
+++ b/libgcc/config/i386/savms64f.h	2018-05-01 13:08:30.082824871 +0200
@@ -55,3 +55,6 @@ MS2SYSV_STUB_END(savms64f_16)
 MS2SYSV_STUB_END(savms64f_17)
 
 #endif /* __x86_64__ */
+#if defined(__linux__) && defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif



1.1                  src/patchsets/gcc/8.1.0/gentoo/55_all_extra-options.patch

file : http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/55_all_extra-options.patch?rev=1.1&view=markup
plain: http://sources.gentoo.org/viewvc.cgi/gentoo/src/patchsets/gcc/8.1.0/gentoo/55_all_extra-options.patch?rev=1.1&content-type=text/plain

Index: 55_all_extra-options.patch
===================================================================
On Hardened we add some options like -fstack-clash-protection and -z now

--- a/gcc/common.opt	2018-03-28 16:51:09.000000000 +0200
+++ a/gcc/common.opt	2018-04-30 15:35:55.274096877 +0200
@@ -2367,7 +2367,7 @@ Common Alias(fstack-check=, specific, no
 Insert stack checking code into the program.  Same as -fstack-check=specific.
 
 fstack-clash-protection
-Common Report Var(flag_stack_clash_protection) Optimization
+Common Report Var(flag_stack_clash_protection) Optimization Init(-1)
 Insert code to probe each page of stack space as it is allocated to protect
 from stack-clash style attacks.
 
--- a/gcc/defaults.h	2018-01-03 11:03:58.000000000 +0100
+++ b/gcc/defaults.h	2018-05-01 12:41:29.522851451 +0200
@@ -1435,6 +1435,15 @@ see the files COPYING3 and COPYING.RUNTI
 #define STACK_CHECK_MAX_VAR_SIZE (STACK_CHECK_MAX_FRAME_SIZE / 100)
 #endif
 
+/* Default value for flag_clash_protector when flag_clash_protector is
+   initialized to -1.  */
+#ifdef ENABLE_ESP
+#define DEFAULT_FLAG_SCP 1
+#endif
+#ifndef DEFAULT_FLAG_SCP
+#define DEFAULT_FLAG_SCP 0
+#endif
+
 /* By default, the C++ compiler will use function addresses in the
    vtable entries.  Setting this nonzero tells the compiler to use
    function descriptors instead.  The value of this macro says how
--- a/gcc/toplev.c	2018-02-13 17:18:37.000000000 +0100
+++ b/toplev.c	2018-04-30 16:46:37.244027303 +0200
@@ -1682,6 +1682,10 @@ process_options (void)
 
   /* -fstack-clash-protection is not currently supported on targets
      where the stack grows up.  */
+  if (flag_stack_clash_protection == -1)
+    {
+      flag_stack_clash_protection = DEFAULT_FLAG_SCP;
+    }
   if (flag_stack_clash_protection && !STACK_GROWS_DOWNWARD)
     {
       warning_at (UNKNOWN_LOCATION, 0,

--- a/libgcc/Makefile.in	2011-11-22 04:01:02.000000000 +0100
+++ b/libgcc/Makefile.in	2011-12-25 15:18:22.449610631 +0100
@@ -225,7 +225,7 @@ endif
 LIBGCC2_DEBUG_CFLAGS = -g
 LIBGCC2_CFLAGS = -O2 $(LIBGCC2_INCLUDES) $(GCC_CFLAGS) $(HOST_LIBGCC2_CFLAGS) \
 		 $(LIBGCC2_DEBUG_CFLAGS) -DIN_LIBGCC2 \
-		 -fbuilding-libgcc -fno-stack-protector \
+		 -fbuilding-libgcc -fno-stack-protector -fno-stack-clash-protection \
 		 $(INHIBIT_LIBC_CFLAGS)
 
 # Additional options to use when compiling libgcc2.a.
@@ -279,7 +290,7 @@ INTERNAL_CFLAGS = $(CFLAGS) $(LIBGCC2_CF
   -finhibit-size-directive -fno-inline -fno-exceptions \
   -fno-zero-initialized-in-bss -fno-toplevel-reorder -fno-tree-vectorize \
   -fbuilding-libgcc -fno-stack-protector $(FORCE_EXPLICIT_EH_REGISTRY) \
-  $(INHIBIT_LIBC_CFLAGS)
+  -fno-stack-clash-protection $(INHIBIT_LIBC_CFLAGS)
 
 # Extra flags to use when compiling crt{begin,end}.o.
 CRTSTUFF_T_CFLAGS =
--- a/gcc/gcc.c	2016-02-19 23:18:38.000000000 +0100
+++ b/gcc/gcc.c	2016-05-02 22:56:10.185721270 +0200
@@ -868,6 +868,12 @@ proper position among the other output f
 #endif
 #endif
 
+#ifdef EXTRA_OPTIONS
+#define LINK_NOW_SPEC "%{!nonow:-z now} "
+#else
+#define LINK_NOW_SPEC ""
+#endif
+
 #ifdef ENABLE_DEFAULT_PIE
 #define NO_PIE_SPEC		"no-pie|static"
 #define PIE_SPEC		NO_PIE_SPEC "|r|shared:;"
@@ -1013,7 +1020,7 @@ proper position among the other output f
     %(linker) " \
     LINK_PLUGIN_SPEC \
    "%{flto|flto=*:%<fcompare-debug*} \
-    %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
+    %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC LINK_NOW_SPEC \
    "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
    "%X %{o*} %{e*} %{N} %{n} %{r}\
     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \