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# commit 5b118558f9fb0620508d51c34c2cb5ba4f1f01c2
# Author: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
# Date: Wed Dec 4 07:08:48 2013 -0600
#
# PowerPC64 ELFv2 ABI 6/6: Bump ld.so soname version number
#
# To avoid having a ELFv2 binary accidentally picking up an old ABI ld.so,
# this patch bumps the soname to ld64.so.2.
#
# In theory (or for testing purposes) this will also allow co-installing
# ld.so versions for both ABIs on the same system. Note that the kernel
# will already be able to load executables of both ABIs. However, there
# is currently no plan to use that theoretical possibility in a any
# supported distribution environment ...
#
# Note that in order to check which ABI to use, we need to invoke the
# compiler to check the _CALL_ELF macro; this is done in a new configure
# check in sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac,
# replacing the hard-coded value of default-abi in the Makefile.
#
---
# sysdeps/unix/sysv/linux/powerpc/Makefile | 11 -
# sysdeps/unix/sysv/linux/powerpc/ldconfig.h | 3
# sysdeps/unix/sysv/linux/powerpc/powerpc64/Makefile | 2
# sysdeps/unix/sysv/linux/powerpc/powerpc64/configure | 166 +++++++++++++++++
# sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac | 15 +
# 5 files changed, 190 insertions(+), 7 deletions(-)
#
--- a/sysdeps/unix/sysv/linux/powerpc/Makefile
+++ b/sysdeps/unix/sysv/linux/powerpc/Makefile
@@ -1,9 +1,12 @@
-abi-variants := 32 64
+abi-variants := 32 64-v1 64-v2
abi-32-options := -U__powerpc64__
abi-32-condition := __WORDSIZE == 32
-abi-64-options := -D__powerpc64__
-abi-64-condition := __WORDSIZE == 64
-abi-64-ld-soname := ld64.so.1
+abi-64-v1-options := -D__powerpc64__ -U_CALL_ELF -D_CALL_ELF=1
+abi-64-v1-condition := __WORDSIZE == 64 && _CALL_ELF != 2
+abi-64-v1-ld-soname := ld64.so.1
+abi-64-v2-options := -D__powerpc64__ -U_CALL_ELF -D_CALL_ELF=2
+abi-64-v2-condition := __WORDSIZE == 64 && _CALL_ELF == 2
+abi-64-v2-ld-soname := ld64.so.2
ifeq ($(subdir),rt)
librt-routines += rt-sysdep
--- a/sysdeps/unix/sysv/linux/powerpc/ldconfig.h
+++ b/sysdeps/unix/sysv/linux/powerpc/ldconfig.h
@@ -20,7 +20,8 @@
#define SYSDEP_KNOWN_INTERPRETER_NAMES \
{ "/lib/ld.so.1", FLAG_ELF_LIBC6 }, \
- { "/lib64/ld64.so.1", FLAG_ELF_LIBC6 },
+ { "/lib64/ld64.so.1", FLAG_ELF_LIBC6 }, \
+ { "/lib64/ld64.so.2", FLAG_ELF_LIBC6 },
#define SYSDEP_KNOWN_LIBRARY_NAMES \
{ "libc.so.6", FLAG_ELF_LIBC6 }, \
{ "libm.so.6", FLAG_ELF_LIBC6 },
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-# See Makeconfig regarding the use of default-abi.
-default-abi := 64
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure
@@ -0,0 +1,166 @@
+# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
+ # Local configure fragment for sysdeps/unix/sysv/linux/powerpc/powerpc64/.
+
+# Define default-abi according to compiler flags.
+
+
+{ $as_echo "$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 whether the compiler is using the PowerPC64 ELFv2 ABI" >&5
+$as_echo_n "checking whether the compiler is using the PowerPC64 ELFv2 ABI... " >&6; }
+if ${libc_cv_ppc64_elfv2_abi+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#if _CALL_ELF == 2
+ yes
+ #endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "yes" >/dev/null 2>&1; then :
+ libc_cv_ppc64_elfv2_abi=yes
+else
+ libc_cv_ppc64_elfv2_abi=no
+fi
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ppc64_elfv2_abi" >&5
+$as_echo "$libc_cv_ppc64_elfv2_abi" >&6; }
+if test $libc_cv_ppc64_elfv2_abi = yes; then
+ config_vars="$config_vars
+default-abi = 64-v2"
+else
+ config_vars="$config_vars
+default-abi = 64-v1"
+fi
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac
@@ -0,0 +1,15 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/unix/sysv/linux/powerpc/powerpc64/.
+
+# Define default-abi according to compiler flags.
+AC_CACHE_CHECK([whether the compiler is using the PowerPC64 ELFv2 ABI],
+ [libc_cv_ppc64_elfv2_abi],
+ [AC_EGREP_CPP(yes,[#if _CALL_ELF == 2
+ yes
+ #endif
+ ], libc_cv_ppc64_elfv2_abi=yes, libc_cv_ppc64_elfv2_abi=no)])
+if test $libc_cv_ppc64_elfv2_abi = yes; then
+ LIBC_CONFIG_VAR([default-abi], [64-v2])
+else
+ LIBC_CONFIG_VAR([default-abi], [64-v1])
+fi
|
