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authorEkaitz Zarraga <ekaitz@elenq.tech>2024-09-06 21:53:08 +0200
committerEkaitz Zarraga <ekaitz@elenq.tech>2024-09-06 21:53:08 +0200
commit3e5e122a3a7071b8cc90abc41227417a1c45566d (patch)
treed111b09bd1756428aa17cb86c971ea45ccf2511f /patches
parente272542ed50bff0ec4d86f11c92a68989bfaaedf (diff)
embedded: add arm-toolchain by Rutherther
Diffstat (limited to 'patches')
-rw-r--r--patches/newlib-getentropy.patch380
1 files changed, 380 insertions, 0 deletions
diff --git a/patches/newlib-getentropy.patch b/patches/newlib-getentropy.patch
new file mode 100644
index 0000000..a4137d8
--- /dev/null
+++ b/patches/newlib-getentropy.patch
@@ -0,0 +1,380 @@
+Patch-Source: https://github.com/zephyrproject-rtos/gcc/pull/8
+
+From 55addb0c0c5ff5e0aab85574aa26abf175af85c8 Mon Sep 17 00:00:00 2001
+From: Stephanos Ioannidis <root@stephanos.io>
+Date: Mon, 25 Jul 2022 23:10:41 +0900
+Subject: [PATCH] libstdc++: Do not check getentropy and arc4random for cross builds
+
+The "getentropy" and "arc4random" check may not yield a correct result
+for the cross compile builds because linking is often not available for
+them and the C library headers (notoriously, newlib) may still declare
+these function prototypes even if they are not actually part of the
+final library -- for this reason, this commit disables the "getentropy"
+and "arc4random" checks for non-native builds.
+
+This effectively prevents the std::random_device from making use of
+these functions when `--with-newlib` is specified, which is indeed a
+correct behaviour because the newlib does not provide a default stub
+for the "getentropy" function (also note that the newlib "arc4random"
+implementation internally calls the missing "getentropy" function).
+
+For other C libraries, the `GLIBCXX_CROSSCONFIG` function may hard-code
+the availability of these functions by manually defining
+`HAVE_GETENTROPY` and `HAVE_ARC4RANDOM`, or by calling the
+`GLIBCXX_CHECK_GETENTROPY` and `GLIBCXX_CHECK_ARC4RANDOM` functions.
+
+libstdc++-v3:
+ * configure.ac: Relocate GLIBCXX_CHECK_GETENTROPY and
+ GLIBCXX_CHECK_ARC4RANDOM
+ * configure: Regenerate.
+
+Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
+---
+ libstdc++-v3/configure | 300 +++++++++++++++++++-------------------
+ libstdc++-v3/configure.ac | 8 +-
+ 2 files changed, 154 insertions(+), 154 deletions(-)
+
+diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
+index 0ce74e8202443..5d43b56b03ffa 100755
+--- a/libstdc++-v3/configure
++++ b/libstdc++-v3/configure
+@@ -28088,6 +28088,156 @@ $as_echo "#define _GLIBCXX_USE_RANDOM_TR1 1" >>confdefs.h
+
+
+
++ # Check for other random number APIs
++
++
++
++ ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getentropy" >&5
++$as_echo_n "checking for getentropy... " >&6; }
++if ${glibcxx_cv_getentropy+:} false; then :
++ $as_echo_n "(cached) " >&6
++else
++
++ if test x$gcc_no_link = xyes; then
++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h. */
++#include <unistd.h>
++int
++main ()
++{
++unsigned i;
++ ::getentropy(&i, sizeof(i));
++ ;
++ return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++ glibcxx_cv_getentropy=yes
++else
++ glibcxx_cv_getentropy=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++else
++ if test x$gcc_no_link = xyes; then
++ as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
++fi
++cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h. */
++#include <unistd.h>
++int
++main ()
++{
++unsigned i;
++ ::getentropy(&i, sizeof(i));
++ ;
++ return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_link "$LINENO"; then :
++ glibcxx_cv_getentropy=yes
++else
++ glibcxx_cv_getentropy=no
++fi
++rm -f core conftest.err conftest.$ac_objext \
++ conftest$ac_exeext conftest.$ac_ext
++fi
++
++fi
++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_getentropy" >&5
++$as_echo "$glibcxx_cv_getentropy" >&6; }
++
++ if test $glibcxx_cv_getentropy = yes; then
++
++$as_echo "#define HAVE_GETENTROPY 1" >>confdefs.h
++
++ fi
++ ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++
++
++
++ ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for arc4random" >&5
++$as_echo_n "checking for arc4random... " >&6; }
++if ${glibcxx_cv_arc4random+:} false; then :
++ $as_echo_n "(cached) " >&6
++else
++
++ if test x$gcc_no_link = xyes; then
++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h. */
++#include <stdlib.h>
++int
++main ()
++{
++unsigned i = ::arc4random();
++ ;
++ return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++ glibcxx_cv_arc4random=yes
++else
++ glibcxx_cv_arc4random=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++else
++ if test x$gcc_no_link = xyes; then
++ as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
++fi
++cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h. */
++#include <stdlib.h>
++int
++main ()
++{
++unsigned i = ::arc4random();
++ ;
++ return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_link "$LINENO"; then :
++ glibcxx_cv_arc4random=yes
++else
++ glibcxx_cv_arc4random=no
++fi
++rm -f core conftest.err conftest.$ac_objext \
++ conftest$ac_exeext conftest.$ac_ext
++fi
++
++fi
++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_arc4random" >&5
++$as_echo "$glibcxx_cv_arc4random" >&6; }
++
++ if test $glibcxx_cv_arc4random = yes; then
++
++$as_echo "#define HAVE_ARC4RANDOM 1" >>confdefs.h
++
++ fi
++ ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++
+ # For TLS support.
+
+
+@@ -75519,156 +75669,6 @@ $as_echo "#define _GLIBCXX_X86_RDSEED 1" >>confdefs.h
+ fi
+
+
+-# Check for other random number APIs
+-
+-
+-
+- ac_ext=cpp
+-ac_cpp='$CXXCPP $CPPFLAGS'
+-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+-
+- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getentropy" >&5
+-$as_echo_n "checking for getentropy... " >&6; }
+-if ${glibcxx_cv_getentropy+:} false; then :
+- $as_echo_n "(cached) " >&6
+-else
+-
+- if test x$gcc_no_link = xyes; then
+- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+-/* end confdefs.h. */
+-#include <unistd.h>
+-int
+-main ()
+-{
+-unsigned i;
+- ::getentropy(&i, sizeof(i));
+- ;
+- return 0;
+-}
+-_ACEOF
+-if ac_fn_cxx_try_compile "$LINENO"; then :
+- glibcxx_cv_getentropy=yes
+-else
+- glibcxx_cv_getentropy=no
+-fi
+-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+-else
+- if test x$gcc_no_link = xyes; then
+- as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+-fi
+-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+-/* end confdefs.h. */
+-#include <unistd.h>
+-int
+-main ()
+-{
+-unsigned i;
+- ::getentropy(&i, sizeof(i));
+- ;
+- return 0;
+-}
+-_ACEOF
+-if ac_fn_cxx_try_link "$LINENO"; then :
+- glibcxx_cv_getentropy=yes
+-else
+- glibcxx_cv_getentropy=no
+-fi
+-rm -f core conftest.err conftest.$ac_objext \
+- conftest$ac_exeext conftest.$ac_ext
+-fi
+-
+-fi
+-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_getentropy" >&5
+-$as_echo "$glibcxx_cv_getentropy" >&6; }
+-
+- if test $glibcxx_cv_getentropy = yes; then
+-
+-$as_echo "#define HAVE_GETENTROPY 1" >>confdefs.h
+-
+- fi
+- ac_ext=c
+-ac_cpp='$CPP $CPPFLAGS'
+-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+-ac_compiler_gnu=$ac_cv_c_compiler_gnu
+-
+-
+-
+-
+-
+- ac_ext=cpp
+-ac_cpp='$CXXCPP $CPPFLAGS'
+-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+-
+- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for arc4random" >&5
+-$as_echo_n "checking for arc4random... " >&6; }
+-if ${glibcxx_cv_arc4random+:} false; then :
+- $as_echo_n "(cached) " >&6
+-else
+-
+- if test x$gcc_no_link = xyes; then
+- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+-/* end confdefs.h. */
+-#include <stdlib.h>
+-int
+-main ()
+-{
+-unsigned i = ::arc4random();
+- ;
+- return 0;
+-}
+-_ACEOF
+-if ac_fn_cxx_try_compile "$LINENO"; then :
+- glibcxx_cv_arc4random=yes
+-else
+- glibcxx_cv_arc4random=no
+-fi
+-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+-else
+- if test x$gcc_no_link = xyes; then
+- as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+-fi
+-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+-/* end confdefs.h. */
+-#include <stdlib.h>
+-int
+-main ()
+-{
+-unsigned i = ::arc4random();
+- ;
+- return 0;
+-}
+-_ACEOF
+-if ac_fn_cxx_try_link "$LINENO"; then :
+- glibcxx_cv_arc4random=yes
+-else
+- glibcxx_cv_arc4random=no
+-fi
+-rm -f core conftest.err conftest.$ac_objext \
+- conftest$ac_exeext conftest.$ac_ext
+-fi
+-
+-fi
+-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_arc4random" >&5
+-$as_echo "$glibcxx_cv_arc4random" >&6; }
+-
+- if test $glibcxx_cv_arc4random = yes; then
+-
+-$as_echo "#define HAVE_ARC4RANDOM 1" >>confdefs.h
+-
+- fi
+- ac_ext=c
+-ac_cpp='$CPP $CPPFLAGS'
+-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+-ac_compiler_gnu=$ac_cv_c_compiler_gnu
+-
+-
+-
+ # This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE.
+
+ # Do checks for resource limit functions.
+diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac
+index e59bcdb29441f..05cdfcddbc43b 100644
+--- a/libstdc++-v3/configure.ac
++++ b/libstdc++-v3/configure.ac
+@@ -269,6 +269,10 @@ if $GLIBCXX_IS_NATIVE; then
+ # For /dev/random and /dev/urandom for std::random_device.
+ GLIBCXX_CHECK_DEV_RANDOM
+
++ # Check for other random number APIs
++ GLIBCXX_CHECK_GETENTROPY
++ GLIBCXX_CHECK_ARC4RANDOM
++
+ # For TLS support.
+ GCC_CHECK_TLS
+
+@@ -474,10 +478,6 @@ GLIBCXX_CHECK_X86_RDRAND
+ # Check if assembler supports rdseed opcode.
+ GLIBCXX_CHECK_X86_RDSEED
+
+-# Check for other random number APIs
+-GLIBCXX_CHECK_GETENTROPY
+-GLIBCXX_CHECK_ARC4RANDOM
+-
+ # This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE.
+ GLIBCXX_CONFIGURE_TESTSUITE
+