From: Marcus Shawcroft <marcus.shawcroft@linaro.org>
To: libc-ports@sourceware.org
Cc: Marcus Shawcroft <marcus.shawcroft@linaro.org>
Subject: [PATCH] [AArch64] Define BE loader name.
Date: Wed, 01 Jan 2014 17:38:00 -0000 [thread overview]
Message-ID: <1388597841-30225-1-git-send-email-marcus.shawcroft@linaro.org> (raw)
Hi,
This patch defines the BE loader name for aarch64 to be ld-linux-aarch64_be.so.1.
Cheers
/Marcus
---
ports/ChangeLog.aarch64 | 12 ++
ports/sysdeps/aarch64/configure | 174 +++++++++++++++++++++++
ports/sysdeps/aarch64/configure.ac | 22 +++
ports/sysdeps/aarch64/shlib-versions | 5 +
ports/sysdeps/unix/sysv/linux/aarch64/Makefile | 15 ++
ports/sysdeps/unix/sysv/linux/aarch64/ldconfig.h | 1 +
6 files changed, 229 insertions(+)
create mode 100644 ports/sysdeps/aarch64/configure
create mode 100644 ports/sysdeps/aarch64/configure.ac
diff --git a/ports/ChangeLog.aarch64 b/ports/ChangeLog.aarch64
index bad3b91..c1602ce 100644
--- a/ports/ChangeLog.aarch64
+++ b/ports/ChangeLog.aarch64
@@ -1,5 +1,17 @@
2014-01-01 Marcus Shawcroft <marcus.shawcroft@linaro.org>
+ * sysdeps/aarch64/configure.ac: New file.
+ * sysdeps/aarch64/configure: New file.
+ * sysdeps/aarch64/shlib-versions: Define ld-linux-aarch64_be.so.1
+ * sysdeps/unix/sysv/linux/aarch64/Makefile (abi-variants)
+ (abi-lp64-options, abi-lp64-condition, abi-lp64-ld-soname)
+ (abi-lp64_be-options, abi-lp64_be-condition)
+ (abi-lp64_be-ld-soname) Define.
+ * sysdeps/unix/sysv/linux/aarch64/ldconfig.h
+ (SYSDEP_KNOWN_INTERPRETER_NAMES): Add ld-linux-aarch64_be.so.1
+
+2014-01-01 Marcus Shawcroft <marcus.shawcroft@linaro.org>
+
* sysdeps/aarch64/abort-instr.h: New file.
2013-12-18 Marcus Shawcroft <marcus.shawcroft@linaro.org>
diff --git a/ports/sysdeps/aarch64/configure b/ports/sysdeps/aarch64/configure
new file mode 100644
index 0000000..af870b7
--- /dev/null
+++ b/ports/sysdeps/aarch64/configure
@@ -0,0 +1,174 @@
+# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
+ # Local configure fragment for sysdeps/aarch64.
+
+# We check to see if the compiler and flags are
+# selecting the big endian ABI and if they are then
+# we set libc_cv_aarch64_be to yes which causes
+# HAVE_AARCH64_BE to be defined in config.h and
+# in include/libc-symbols.h and thus available to
+# shlib-versions to select the appropriate name for
+# the dynamic linker via %ifdef.
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -z "$GREP"; then
+ ac_path_GREP_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in grep ggrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+ { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+ # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+ ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+ ac_count=0
+ $as_echo_n 0123456789 >"conftest.in"
+ while :
+ do
+ cat "conftest.in" "conftest.in" >"conftest.tmp"
+ mv "conftest.tmp" "conftest.in"
+ cp "conftest.in" "conftest.nl"
+ $as_echo 'GREP' >> "conftest.nl"
+ "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+ diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+ as_fn_arith $ac_count + 1 && ac_count=$as_val
+ if test $ac_count -gt ${ac_path_GREP_max-0}; then
+ # Best one so far, save it but keep looking for a better one
+ ac_cv_path_GREP="$ac_path_GREP"
+ ac_path_GREP_max=$ac_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test $ac_count -gt 10 && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+ $ac_path_GREP_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_GREP"; then
+ as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+ fi
+else
+ ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+ then ac_cv_path_EGREP="$GREP -E"
+ else
+ if test -z "$EGREP"; then
+ ac_path_EGREP_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in egrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+ { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+ # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+ ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+ ac_count=0
+ $as_echo_n 0123456789 >"conftest.in"
+ while :
+ do
+ cat "conftest.in" "conftest.in" >"conftest.tmp"
+ mv "conftest.tmp" "conftest.in"
+ cp "conftest.in" "conftest.nl"
+ $as_echo 'EGREP' >> "conftest.nl"
+ "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+ diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+ as_fn_arith $ac_count + 1 && ac_count=$as_val
+ if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+ # Best one so far, save it but keep looking for a better one
+ ac_cv_path_EGREP="$ac_path_EGREP"
+ ac_path_EGREP_max=$ac_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test $ac_count -gt 10 && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+ $ac_path_EGREP_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_EGREP"; then
+ as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+ fi
+else
+ ac_cv_path_EGREP=$EGREP
+fi
+
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for big endian" >&5
+$as_echo_n "checking for big endian... " >&6; }
+if ${libc_cv_aarch64_be+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef __AARCH64EB__
+ yes
+ #endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "yes" >/dev/null 2>&1; then :
+ libc_cv_aarch64_be=yes
+else
+ libc_cv_aarch64_be=no
+fi
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_aarch64_be" >&5
+$as_echo "$libc_cv_aarch64_be" >&6; }
+if test $libc_cv_aarch64_be = yes; then
+ $as_echo "#define HAVE_AARCH64_BE 1" >>confdefs.h
+
+ config_vars="$config_vars
+default-abi = lp64_be"
+else
+ config_vars="$config_vars
+default-abi = lp64"
+fi
diff --git a/ports/sysdeps/aarch64/configure.ac b/ports/sysdeps/aarch64/configure.ac
new file mode 100644
index 0000000..7851dd4
--- /dev/null
+++ b/ports/sysdeps/aarch64/configure.ac
@@ -0,0 +1,22 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/aarch64.
+
+# We check to see if the compiler and flags are
+# selecting the big endian ABI and if they are then
+# we set libc_cv_aarch64_be to yes which causes
+# HAVE_AARCH64_BE to be defined in config.h and
+# in include/libc-symbols.h and thus available to
+# shlib-versions to select the appropriate name for
+# the dynamic linker via %ifdef.
+AC_CACHE_CHECK([for big endian],
+ [libc_cv_aarch64_be],
+ [AC_EGREP_CPP(yes,[#ifdef __AARCH64EB__
+ yes
+ #endif
+ ], libc_cv_aarch64_be=yes, libc_cv_aarch64_be=no)])
+if test $libc_cv_aarch64_be = yes; then
+ AC_DEFINE(HAVE_AARCH64_BE)
+ LIBC_CONFIG_VAR([default-abi], [lp64_be])
+else
+ LIBC_CONFIG_VAR([default-abi], [lp64])
+fi
diff --git a/ports/sysdeps/aarch64/shlib-versions b/ports/sysdeps/aarch64/shlib-versions
index 82b227d..67f1911 100644
--- a/ports/sysdeps/aarch64/shlib-versions
+++ b/ports/sysdeps/aarch64/shlib-versions
@@ -1,2 +1,7 @@
aarch64.*-.*-linux.* DEFAULT GLIBC_2.17
+
+%ifdef HAVE_AARCH64_BE
+aarch64.*-.*-linux.* ld=ld-linux-aarch64_be.so.1
+%else
aarch64.*-.*-linux.* ld=ld-linux-aarch64.so.1
+%endif
diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/Makefile b/ports/sysdeps/unix/sysv/linux/aarch64/Makefile
index 8a3d76b..d3f1603 100644
--- a/ports/sysdeps/unix/sysv/linux/aarch64/Makefile
+++ b/ports/sysdeps/unix/sysv/linux/aarch64/Makefile
@@ -22,3 +22,18 @@ endif
ifeq ($(subdir),stdlib)
gen-as-const-headers += ucontext_i.sym
endif
+
+abi-variants := lp64
+abi-variants += lp64_be
+
+ifeq (,$(filter $(default-abi),$(abi-variants)))
+Unknown ABI, must be one of $(abi-variants)
+endif
+
+abi-lp64-options := -U__AARCH64EB__
+abi-lp64-condition := !defined __AARCH64EB__
+abi-lp64-ld-soname := ld-linux-aarch64.so.1
+
+abi-lp64_be-options := -D__AARCH6464EB__
+abi-lp64_be-condition := defined __AARCH64EB__
+abi-lp64_be-ld-soname := ld-linux-aarch64_be.so.1
diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/ldconfig.h b/ports/sysdeps/unix/sysv/linux/aarch64/ldconfig.h
index 10be197..b0e6b6a 100644
--- a/ports/sysdeps/unix/sysv/linux/aarch64/ldconfig.h
+++ b/ports/sysdeps/unix/sysv/linux/aarch64/ldconfig.h
@@ -20,6 +20,7 @@
#define SYSDEP_KNOWN_INTERPRETER_NAMES \
{ "/lib/ld-linux-aarch64.so.1", FLAG_ELF_LIBC6 }, \
+ { "/lib/ld-linux-aarch64_be.so.1", FLAG_ELF_LIBC6 }, \
{ "/lib/ld-linux.so.3", FLAG_ELF_LIBC6 }, \
{ "/lib/ld-linux-armhf.so.3", FLAG_ELF_LIBC6 },
#define SYSDEP_KNOWN_LIBRARY_NAMES \
--
1.8.3.2
next reply other threads:[~2014-01-01 17:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-01 17:38 Marcus Shawcroft [this message]
2014-01-01 19:31 ` pinskia
2014-01-01 19:57 ` pinskia
2014-01-06 11:06 ` Marcus Shawcroft
2014-01-06 17:16 ` Andrew Pinski
2014-01-08 22:43 ` Carlos O'Donell
2014-01-13 18:17 ` Steve McIntyre
2014-01-17 23:04 ` Andrew Pinski
2014-01-20 15:53 ` Marcus Shawcroft
2014-01-20 16:13 ` Joseph S. Myers
2014-01-20 16:15 ` Policy: Require new dynamic loader names for entirely new ABIs? Carlos O'Donell
2014-01-20 17:10 ` Steve McIntyre
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