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GNU C Library master sources branch hjl/pie/static created. glibc-2.26-107-g3563836


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The branch, hjl/pie/static has been created
        at  35638365015268c714e1eb534a1bf991d4fce566 (commit)

- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=35638365015268c714e1eb534a1bf991d4fce566

commit 35638365015268c714e1eb534a1bf991d4fce566
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Jul 17 13:53:52 2017 -0700

    Add _dl_relocate_static_pie

diff --git a/csu/libc-start.c b/csu/libc-start.c
index 6720617..f2874b8 100644
--- a/csu/libc-start.c
+++ b/csu/libc-start.c
@@ -143,6 +143,8 @@ LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL),
   __libc_multiple_libcs = &_dl_starting_up && !_dl_starting_up;
 
 #ifndef SHARED
+  _dl_relocate_static_pie ();
+
   char **ev = &argv[argc + 1];
 
   __environ = ev;
diff --git a/csu/libc-tls.c b/csu/libc-tls.c
index 00138eb..1f8ddaf 100644
--- a/csu/libc-tls.c
+++ b/csu/libc-tls.c
@@ -114,6 +114,8 @@ __libc_setup_tls (void)
   size_t tcb_offset;
   const ElfW(Phdr) *phdr;
 
+  struct link_map *main_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
+
   /* Look through the TLS segment if there is any.  */
   if (_dl_phdr != NULL)
     for (phdr = _dl_phdr; phdr < &_dl_phdr[_dl_phnum]; ++phdr)
@@ -122,7 +124,7 @@ __libc_setup_tls (void)
 	  /* Remember the values we need.  */
 	  memsz = phdr->p_memsz;
 	  filesz = phdr->p_filesz;
-	  initimage = (void *) phdr->p_vaddr;
+	  initimage = (void *) phdr->p_vaddr + main_map->l_addr;
 	  align = phdr->p_align;
 	  if (phdr->p_align > max_align)
 	    max_align = phdr->p_align;
@@ -163,8 +165,6 @@ __libc_setup_tls (void)
   _dl_static_dtv[0].counter = (sizeof (_dl_static_dtv) / sizeof (_dl_static_dtv[0])) - 2;
   // _dl_static_dtv[1].counter = 0;		would be needed if not already done
 
-  struct link_map *main_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
-
   /* Initialize the TLS block.  */
 #if TLS_TCB_AT_TP
   _dl_static_dtv[2].pointer.val = ((char *) tlsblock + tcb_offset
diff --git a/elf/dl-support.c b/elf/dl-support.c
index 48340f7..09b2229 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -26,7 +26,11 @@
 #include <sys/param.h>
 #include <stdint.h>
 #include <ldsodefs.h>
-#include <dl-machine.h>
+#if ENABLE_STATIC_PIE
+# include "dynamic-link.h"
+#else
+# include <dl-machine.h>
+#endif
 #include <libc-lock.h>
 #include <dl-cache.h>
 #include <dl-librecon.h>
@@ -199,7 +203,9 @@ const ElfW(Ehdr) *_dl_sysinfo_dso;
 
 struct link_map *_dl_sysinfo_map;
 
-# include "get-dynamic-info.h"
+# if !ENABLE_STATIC_PIE
+#  include "get-dynamic-info.h"
+# endif
 #endif
 #include "setup-vdso.h"
 
@@ -303,6 +309,35 @@ _dl_aux_init (ElfW(auxv_t) *av)
 }
 #endif
 
+#if ENABLE_STATIC_PIE
+/* Relocate static executable with PIE.  */
+
+void
+_dl_relocate_static_pie (void)
+{
+# define STATIC_PIE_BOOTSTRAP
+# define RESOLVE_MAP(sym, version, flags) (&_dl_main_map)
+# include "dynamic-link.h"
+
+  /* Figure out the run-time load addres of static PIE.  */
+  _dl_main_map.l_addr = elf_machine_load_address ();
+
+  /* Read our own dynamic section and fill in the info array.  */
+  _dl_main_map.l_ld = ((void *) _dl_main_map.l_addr
+		       + elf_machine_dynamic ());
+  elf_get_dynamic_info (&_dl_main_map, NULL);
+
+# ifdef ELF_MACHINE_BEFORE_RTLD_RELOC
+  ELF_MACHINE_BEFORE_RTLD_RELOC (_dl_main_map.l_info);
+# endif
+
+  /* Relocate ourselves so we can do normal function calls and
+     data access using the global offset table.  */
+  ELF_DYNAMIC_RELOCATE (&_dl_main_map, 0, 0, 0);
+  _dl_main_map.l_relocated = 1;
+}
+#endif
+
 
 void
 internal_function
diff --git a/elf/dynamic-link.h b/elf/dynamic-link.h
index 60f2d91..d3935f7 100644
--- a/elf/dynamic-link.h
+++ b/elf/dynamic-link.h
@@ -95,7 +95,7 @@ elf_machine_lazy_rel (struct link_map *map,
 
 #ifdef RESOLVE_MAP
 
-# ifdef RTLD_BOOTSTRAP
+# if defined RTLD_BOOTSTRAP || defined STATIC_PIE_BOOTSTRAP
 #  define ELF_DURING_STARTUP (1)
 # else
 #  define ELF_DURING_STARTUP (0)
diff --git a/elf/get-dynamic-info.h b/elf/get-dynamic-info.h
index 7525c3a..eb26d23 100644
--- a/elf/get-dynamic-info.h
+++ b/elf/get-dynamic-info.h
@@ -38,7 +38,7 @@ elf_get_dynamic_info (struct link_map *l, ElfW(Dyn) *temp)
   typedef Elf64_Xword d_tag_utype;
 #endif
 
-#ifndef RTLD_BOOTSTRAP
+#if !defined RTLD_BOOTSTRAP && !defined STATIC_PIE_BOOTSTRAP
   if (dyn == NULL)
     return;
 #endif
@@ -139,9 +139,11 @@ elf_get_dynamic_info (struct link_map *l, ElfW(Dyn) *temp)
   /* Only the bind now flags are allowed.  */
   assert (info[VERSYMIDX (DT_FLAGS_1)] == NULL
 	  || (info[VERSYMIDX (DT_FLAGS_1)]->d_un.d_val & ~DF_1_NOW) == 0);
+  /* Flags must not be set for ld.so.  */
   assert (info[DT_FLAGS] == NULL
 	  || (info[DT_FLAGS]->d_un.d_val & ~DF_BIND_NOW) == 0);
-  /* Flags must not be set for ld.so.  */
+#endif
+#if defined RTLD_BOOTSTRAP || defined STATIC_PIE_BOOTSTRAP
   assert (info[DT_RUNPATH] == NULL);
   assert (info[DT_RPATH] == NULL);
 #else
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index e4004ee..5e5b3c7 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -1069,6 +1069,13 @@ extern void _dl_determine_tlsoffset (void) internal_function attribute_hidden;
    stack protector, among other things).  */
 void __libc_setup_tls (void);
 
+# if ENABLE_STATIC_PIE
+/* Relocate static executable with PIE.  */
+void _dl_relocate_static_pie (void) attribute_hidden;
+# else
+#  define _dl_relocate_static_pie()
+# endif
+
 /* Initialization of libpthread for statically linked applications.
    If libpthread is not linked in, this is an empty function.  */
 void __pthread_initialize_minimal (void) weak_function;

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=e493125dcd68fc93f7d8894d8538111c81d51d16

commit e493125dcd68fc93f7d8894d8538111c81d51d16
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Jul 17 08:54:40 2017 -0700

    Define pie-default/default-pie-ldflag for --enable-static-pie
    
    1. Add $(pie-default) to CFLAGS-.o and CFLAGS-.op.
    2. Add $(default-pie-ldflag) to +link-static-before-libc.
    3. Define +prectorT/+postctorT to $(+prectorS)/$(+postctorS).

diff --git a/Makeconfig b/Makeconfig
index 80aed2a..3af2abc 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -386,6 +386,16 @@ LDFLAGS.so += $(hashstyle-LDFLAGS)
 LDFLAGS-rtld += $(hashstyle-LDFLAGS)
 endif
 
+ifeq (yes,$(enable-static-pie))
+pic-default = -DPIC
+pie-default = -fPIE
+ifeq (yes,$(have-static-pie))
+default-pie-ldflag = -static-pie
+else
+default-pie-ldflag = -pie -Wl,--no-dynamic-linker,--eh-frame-hdr,-z,text
+endif
+endif
+
 # If lazy relocations are disabled, add the -z now flag.  Use
 # LDFLAGS-lib.so instead of LDFLAGS.so, to avoid adding the flag to
 # test modules.
@@ -435,6 +445,7 @@ endif
 # Command for statically linking programs with the C library.
 ifndef +link-static
 +link-static-before-libc = $(CC) -nostdlib -nostartfiles -static -o $@ \
+	      $(default-pie-ldflag) \
 	      $(sysdep-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F))  \
 	      $(addprefix $(csu-objpfx),$(static-start-installed-name)) \
 	      $(+preinit) $(+prectorT) \
@@ -651,8 +662,13 @@ endif
 +prectorS = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtbeginS.o`
 +postctorS = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtendS.o`
 # Variants of the two previous definitions for statically linking programs.
+ifeq (yes,$(enable-static-pie))
++prectorT = $(+prectorS)
++postctorT = $(+postctorS)
+else
 +prectorT = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtbeginT.o`
 +postctorT = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtend.o`
+endif
 csu-objpfx = $(common-objpfx)csu/
 elf-objpfx = $(common-objpfx)elf/
 
@@ -973,7 +989,7 @@ libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o))
 all-object-suffixes := .o .os .oS
 object-suffixes :=
 CPPFLAGS-.o = $(pic-default)
-CFLAGS-.o = $(filter %frame-pointer,$(+cflags))
+CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) $(pie-default)
 libtype.o := lib%.a
 object-suffixes += .o
 ifeq (yes,$(build-shared))
@@ -998,7 +1014,7 @@ ifeq (yes,$(build-profile))
 all-object-suffixes += .op
 object-suffixes += .op
 CPPFLAGS-.op = -DPROF $(pic-default)
-CFLAGS-.op = -pg
+CFLAGS-.op = -pg $(pie-default)
 libtype.op = lib%_p.a
 endif
 

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=aeeaf210537aa7d4e4b4d2896b7a18ceb1d4f4ca

commit aeeaf210537aa7d4e4b4d2896b7a18ceb1d4f4ca
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Tue Jul 18 05:58:21 2017 -0700

    x86-64: Check if linker supports static PIE
    
    Need the linker with fix for:
    
    https://sourceware.org/bugzilla/show_bug.cgi?id=21782
    
    Binutils 2.29 is OK.

diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure
index efef46b..7983c96 100644
--- a/sysdeps/x86_64/configure
+++ b/sysdeps/x86_64/configure
@@ -85,6 +85,43 @@ if test x"$build_mathvec" = xnotset; then
   build_mathvec=yes
 fi
 
+if test "$static_pie" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker static PIE support" >&5
+$as_echo_n "checking for linker static PIE support... " >&6; }
+if ${libc_cv_ld_static_pie+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat > conftest.s <<\EOF
+	.text
+	.global _start
+	.weak foo
+_start:
+	leaq	foo(%rip), %rax
+EOF
+  if test "$libc_cv_static_pie" = yes; then
+    libc_cv_static_pie_option="-static-pie"
+  else
+    libc_cv_static_pie_option="-static -pie"
+  fi
+  if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostartfiles -nostdlib $no_ssp $libc_cv_static_pie_option conftest.s 1>&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    libc_cv_ld_static_pie=yes
+  else
+    libc_cv_ld_static_pie=no
+  fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ld_static_pie" >&5
+$as_echo "$libc_cv_ld_static_pie" >&6; }
+  if test "$libc_cv_ld_static_pie" != yes; then
+    as_fn_error $? "linker support for static PIE needed" "$LINENO" 5
+  fi
+fi
+
 $as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
 
 
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac
index fa86e95..4de1983 100644
--- a/sysdeps/x86_64/configure.ac
+++ b/sysdeps/x86_64/configure.ac
@@ -44,6 +44,32 @@ if test x"$build_mathvec" = xnotset; then
   build_mathvec=yes
 fi
 
+dnl Check if linker supports static PIE.
+if test "$static_pie" = yes; then
+  AC_CACHE_CHECK(for linker static PIE support, libc_cv_ld_static_pie, [dnl
+cat > conftest.s <<\EOF
+	.text
+	.global _start
+	.weak foo
+_start:
+	leaq	foo(%rip), %rax
+EOF
+  if test "$libc_cv_static_pie" = yes; then
+    libc_cv_static_pie_option="-static-pie"
+  else
+    libc_cv_static_pie_option="-static -pie"
+  fi
+  if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostartfiles -nostdlib $no_ssp $libc_cv_static_pie_option conftest.s 1>&AS_MESSAGE_LOG_FD); then
+    libc_cv_ld_static_pie=yes
+  else
+    libc_cv_ld_static_pie=no
+  fi
+rm -f conftest*])
+  if test "$libc_cv_ld_static_pie" != yes; then
+    AC_MSG_ERROR([linker support for static PIE needed])
+  fi
+fi
+
 dnl It is always possible to access static and hidden symbols in an
 dnl position independent way.
 AC_DEFINE(PI_STATIC_AND_HIDDEN)

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=96eef8df6d08e759526c43829868a29bcfc3c86d

commit 96eef8df6d08e759526c43829868a29bcfc3c86d
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Jul 17 08:36:45 2017 -0700

    Add --enable-static-pie

diff --git a/config.h.in b/config.h.in
index 014fb4e..26ed786 100644
--- a/config.h.in
+++ b/config.h.in
@@ -236,6 +236,9 @@
 /* Build glibc with tunables support.  */
 #define HAVE_TUNABLES 0
 
+/* Define if static PIE is enabled.  */
+#define ENABLE_STATIC_PIE 0
+
 /* Some compiler options may now allow to use ebp in __asm__ (used mainly
    in i386 6 argument syscall issue).  */
 #define CAN_USE_REGISTER_ASM_EBP 0
diff --git a/configure b/configure
index 9ad25ca..c22eb62 100755
--- a/configure
+++ b/configure
@@ -766,6 +766,7 @@ with_default_link
 enable_sanity_checks
 enable_shared
 enable_profile
+enable_static_pie
 enable_timezone_tools
 enable_hardcoded_path_in_tests
 enable_stackguard_randomization
@@ -1423,6 +1424,7 @@ Optional Features:
                           in special situations) [default=yes]
   --enable-shared         build shared library [default=yes if GNU ld]
   --enable-profile        build profiled library [default=no]
+  --enable-static-pie     build static executables as PIE [default=no]
   --disable-timezone-tools
                           do not install timezone tools [default=install]
   --enable-hardcoded-path-in-tests
@@ -3371,6 +3373,13 @@ else
   profile=no
 fi
 
+# Check whether --enable-static-pie was given.
+if test "${enable_static_pie+set}" = set; then :
+  enableval=$enable_static_pie; static_pie=$enableval
+else
+  static_pie=no
+fi
+
 # Check whether --enable-timezone-tools was given.
 if test "${enable_timezone_tools+set}" = set; then :
   enableval=$enable_timezone_tools; enable_timezone_tools=$enableval
@@ -6967,6 +6976,24 @@ fi
 $as_echo "$libc_cv_pie_default" >&6; }
 
 
+if test "$static_pie" = yes; then
+  # The linker must support --no-dynamic-linker.
+  if test "$libc_cv_no_dynamic_linker" != yes; then
+    as_fn_error $? "linker support for --no-dynamic-linker needed" "$LINENO" 5
+  fi
+  # The compiler must support -static-pie or -static -pie.
+  if test "$libc_cv_static_pie" != yes &&
+     test "$libc_cv_static_and_pie" != yes; then
+    as_fn_error $? "compiler support for -static-pie or -static -pie needed" "$LINENO" 5
+  fi
+  # Default to PIE.
+  libc_cv_pie_default=yes
+  $as_echo "#define ENABLE_STATIC_PIE 1" >>confdefs.h
+
+fi
+config_vars="$config_vars
+enable-static-pie = $static_pie"
+
 
 
 
diff --git a/configure.ac b/configure.ac
index 1ef0aaf..8b46913 100644
--- a/configure.ac
+++ b/configure.ac
@@ -176,6 +176,11 @@ AC_ARG_ENABLE([profile],
 			     [build profiled library @<:@default=no@:>@]),
 	      [profile=$enableval],
 	      [profile=no])
+AC_ARG_ENABLE([static-pie],
+	      AC_HELP_STRING([--enable-static-pie],
+			     [build static executables as PIE @<:@default=no@:>@]),
+	      [static_pie=$enableval],
+	      [static_pie=no])
 AC_ARG_ENABLE([timezone-tools],
 	      AC_HELP_STRING([--disable-timezone-tools],
 			     [do not install timezone tools @<:@default=install@:>@]),
@@ -1989,6 +1994,22 @@ fi
 rm -f conftest.*])
 AC_SUBST(libc_cv_pie_default)
 
+if test "$static_pie" = yes; then
+  # The linker must support --no-dynamic-linker.
+  if test "$libc_cv_no_dynamic_linker" != yes; then
+    AC_MSG_ERROR([linker support for --no-dynamic-linker needed])
+  fi
+  # The compiler must support -static-pie or -static -pie.
+  if test "$libc_cv_static_pie" != yes &&
+     test "$libc_cv_static_and_pie" != yes; then
+    AC_MSG_ERROR([compiler support for -static-pie or -static -pie needed])
+  fi
+  # Default to PIE.
+  libc_cv_pie_default=yes
+  AC_DEFINE(ENABLE_STATIC_PIE)
+fi
+LIBC_CONFIG_VAR([enable-static-pie], [$static_pie])
+
 AC_SUBST(profile)
 AC_SUBST(static_nss)
 

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=f579aaaf47f60abf7710a46a0ea08d1a1bf7cb33

commit f579aaaf47f60abf7710a46a0ea08d1a1bf7cb33
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sun Jul 23 05:26:26 2017 -0700

    Check if -static and -pie work together

diff --git a/configure b/configure
index 3c0516e..9ad25ca 100755
--- a/configure
+++ b/configure
@@ -6047,6 +6047,32 @@ $as_echo "$libc_cv_static_pie" >&6; }
 config_vars="$config_vars
 have-static-pie = $libc_cv_static_pie"
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -static -pie" >&5
+$as_echo_n "checking for -static -pie... " >&6; }
+if ${libc_cv_static_and_pie+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat > conftest.c <<EOF
+void
+_start (void)
+{
+}
+EOF
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -pie -nostartfiles -nostdlib $no_ssp -o conftest conftest.c -v 2>&1 | grep " -static -pie " > /dev/null'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    libc_cv_static_and_pie=yes
+  else
+    libc_cv_static_and_pie=no
+  fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_static_and_pie" >&5
+$as_echo "$libc_cv_static_and_pie" >&6; }
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fpie" >&5
 $as_echo_n "checking for -fpie... " >&6; }
 if ${libc_cv_fpie+:} false; then :
diff --git a/configure.ac b/configure.ac
index 8c13907..1ef0aaf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1473,6 +1473,20 @@ LIBC_TRY_CC_OPTION([-static-pie],
 ])
 LIBC_CONFIG_VAR([have-static-pie], [$libc_cv_static_pie])
 
+AC_CACHE_CHECK(for -static -pie, libc_cv_static_and_pie, [dnl
+cat > conftest.c <<EOF
+void
+_start (void)
+{
+}
+EOF
+if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -pie -nostartfiles -nostdlib $no_ssp -o conftest conftest.c -v 2>&1 | grep " -static -pie " > /dev/null); then
+    libc_cv_static_and_pie=yes
+  else
+    libc_cv_static_and_pie=no
+  fi
+rm -f conftest*])
+
 AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl
 LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no])
 ])

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=b3ab6e372b9802978bb3b0eaeca7728ee7cb397a

commit b3ab6e372b9802978bb3b0eaeca7728ee7cb397a
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Jul 21 05:07:19 2017 -0700

    Check if -static-pie works

diff --git a/configure b/configure
index 4af416c..3c0516e 100755
--- a/configure
+++ b/configure
@@ -6025,6 +6025,28 @@ $as_echo "$libc_linker_feature" >&6; }
 config_vars="$config_vars
 have-no-dynamic-linker = $libc_cv_no_dynamic_linker"
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -static-pie" >&5
+$as_echo_n "checking for -static-pie... " >&6; }
+if ${libc_cv_static_pie+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if { ac_try='${CC-cc} -static-pie -xc /dev/null -S -o /dev/null'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  libc_cv_static_pie=yes
+else
+  libc_cv_static_pie=no
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_static_pie" >&5
+$as_echo "$libc_cv_static_pie" >&6; }
+config_vars="$config_vars
+have-static-pie = $libc_cv_static_pie"
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fpie" >&5
 $as_echo_n "checking for -fpie... " >&6; }
 if ${libc_cv_fpie+:} false; then :
diff --git a/configure.ac b/configure.ac
index efaf3ec..8c13907 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1466,6 +1466,13 @@ LIBC_LINKER_FEATURE([--no-dynamic-linker],
 		    [libc_cv_no_dynamic_linker=no])
 LIBC_CONFIG_VAR([have-no-dynamic-linker], [$libc_cv_no_dynamic_linker])
 
+AC_CACHE_CHECK(for -static-pie, libc_cv_static_pie, [dnl
+LIBC_TRY_CC_OPTION([-static-pie],
+		   [libc_cv_static_pie=yes],
+		   [libc_cv_static_pie=no])
+])
+LIBC_CONFIG_VAR([have-static-pie], [$libc_cv_static_pie])
+
 AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl
 LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no])
 ])

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=53e52aef2f1aef38f4878fe44441eabaa1723d3d

commit 53e52aef2f1aef38f4878fe44441eabaa1723d3d
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Jul 17 08:17:32 2017 -0700

    Check if linker supports --no-dynamic-linker

diff --git a/configure b/configure
index e6a54d7..4af416c 100755
--- a/configure
+++ b/configure
@@ -5991,6 +5991,40 @@ fi
 $as_echo "$libc_linker_feature" >&6; }
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports --no-dynamic-linker" >&5
+$as_echo_n "checking for linker that supports --no-dynamic-linker... " >&6; }
+libc_linker_feature=no
+if test x"$gnu_ld" = x"yes"; then
+  libc_linker_check=`$LD -v --help 2>/dev/null | grep "\--no-dynamic-linker"`
+  if test -n "$libc_linker_check"; then
+    cat > conftest.c <<EOF
+int _start (void) { return 42; }
+EOF
+    if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
+				-Wl,--no-dynamic-linker -nostdlib -nostartfiles
+				-fPIC -shared -o conftest.so conftest.c
+				1>&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+      libc_linker_feature=yes
+    fi
+    rm -f conftest*
+  fi
+fi
+if test $libc_linker_feature = yes; then
+  libc_cv_no_dynamic_linker=yes
+else
+  libc_cv_no_dynamic_linker=no
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
+$as_echo "$libc_linker_feature" >&6; }
+config_vars="$config_vars
+have-no-dynamic-linker = $libc_cv_no_dynamic_linker"
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fpie" >&5
 $as_echo_n "checking for -fpie... " >&6; }
 if ${libc_cv_fpie+:} false; then :
diff --git a/configure.ac b/configure.ac
index 2c63088..efaf3ec 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1460,6 +1460,12 @@ LIBC_LINKER_FEATURE([-z execstack], [-Wl,-z,execstack],
 		    [libc_cv_z_execstack=yes], [libc_cv_z_execstack=no])
 AC_SUBST(libc_cv_z_execstack)
 
+LIBC_LINKER_FEATURE([--no-dynamic-linker],
+		    [-Wl,--no-dynamic-linker],
+		    [libc_cv_no_dynamic_linker=yes],
+		    [libc_cv_no_dynamic_linker=no])
+LIBC_CONFIG_VAR([have-no-dynamic-linker], [$libc_cv_no_dynamic_linker])
+
 AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl
 LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no])
 ])

-----------------------------------------------------------------------


hooks/post-receive
-- 
GNU C Library master sources


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