public inbox for libc-ports@sourceware.org
 help / color / mirror / Atom feed
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

             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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1388597841-30225-1-git-send-email-marcus.shawcroft@linaro.org \
    --to=marcus.shawcroft@linaro.org \
    --cc=libc-ports@sourceware.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).