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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-04-06 16:26:32 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2014-04-06 16:48:08 -0500
commit7ffa9423020fe331b45a56b804c95929a0398e8b (patch)
tree2db5161018046fbcf34bd145c5095765dec6f3c1 /sysdeps
parent8bd70862e11023e7f827f240a5a214f847ae982d (diff)
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PowerPC: define _CALL_ELF if compiler does not
This patch makes the configure adds -D_CALL_ELF=1 when compiler does not define _CALL_ELF (versions before powerpc64le support). It cleans up compiler warnings on old compiler where _CALL_ELF is not defined on powerpc64(be) builds. It does by add a new config.make variable for configure-deduced CPPFLAGS and accumulate into that (confix-extra-cppflags). It also generalizes libc_extra_cflags so it accumulates in sysdeps configure fragmenets.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc64/configure27
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac10
2 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure b/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure
index fbb6334..8262fdd 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure
@@ -163,4 +163,31 @@ default-abi = 64-v2"
else
config_vars="$config_vars
default-abi = 64-v1"
+ # Compiler that do not support ELFv2 ABI does not define _CALL_ELF
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler defines _CALL_ELF" >&5
+$as_echo_n "checking whether the compiler defines _CALL_ELF... " >&6; }
+if ${libc_cv_ppc64_def_call_elf+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef _CALL_ELF
+ yes
+ #endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "yes" >/dev/null 2>&1; then :
+ libc_cv_ppc64_def_call_elf=yes
+else
+ libc_cv_ppc64_def_call_elf=no
+fi
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ppc64_def_call_elf" >&5
+$as_echo "$libc_cv_ppc64_def_call_elf" >&6; }
+ if test $libc_cv_ppc64_def_call_elf = no; then
+ libc_extra_cppflags="$libc_extra_cppflags -D_CALL_ELF=1"
+ fi
fi
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac b/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac
index c9cd4bc..d60b05e 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac
@@ -12,4 +12,14 @@ if test $libc_cv_ppc64_elfv2_abi = yes; then
LIBC_CONFIG_VAR([default-abi], [64-v2])
else
LIBC_CONFIG_VAR([default-abi], [64-v1])
+ # Compiler that do not support ELFv2 ABI does not define _CALL_ELF
+ AC_CACHE_CHECK([whether the compiler defines _CALL_ELF],
+ [libc_cv_ppc64_def_call_elf],
+ [AC_EGREP_CPP(yes,[#ifdef _CALL_ELF
+ yes
+ #endif
+ ], libc_cv_ppc64_def_call_elf=yes, libc_cv_ppc64_def_call_elf=no)])
+ if test $libc_cv_ppc64_def_call_elf = no; then
+ libc_extra_cppflags="$libc_extra_cppflags -D_CALL_ELF=1"
+ fi
fi