[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/sysdeps/arm/configure.ac b/ap/libc/glibc/glibc-2.22/sysdeps/arm/configure.ac
new file mode 100644
index 0000000..859c92a
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/sysdeps/arm/configure.ac
@@ -0,0 +1,131 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/arm.
+
+dnl It is always possible to access static and hidden symbols in an
+dnl position independent way. This has been true since GCC 4.1,
+dnl which is older than the minimum version required to build libc.
+AC_DEFINE(PI_STATIC_AND_HIDDEN)
+
+# We check to see if the compiler and flags are
+# selecting the hard-float ABI and if they are then
+# we set libc_cv_arm_pcs_vfp to yes which causes
+# HAVE_ARM_PCS_VFP 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([whether the compiler is using the ARM hard-float ABI],
+ [libc_cv_arm_pcs_vfp],
+ [AC_EGREP_CPP(yes,[#ifdef __ARM_PCS_VFP
+ yes
+ #endif
+ ], libc_cv_arm_pcs_vfp=yes, libc_cv_arm_pcs_vfp=no)])
+if test $libc_cv_arm_pcs_vfp = yes; then
+ AC_DEFINE(HAVE_ARM_PCS_VFP)
+ LIBC_CONFIG_VAR([default-abi], [hard])
+else
+ LIBC_CONFIG_VAR([default-abi], [soft])
+fi
+
+AC_CACHE_CHECK([whether the build tools support the GNU descriptor TLS scheme],
+ [libc_cv_arm_tls_desc],
+ [old_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -mtls-dialect=gnu2"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([asm (".word\tfoo(tlsdesc)");], [])],
+ [libc_cv_arm_tls_desc=yes], [libc_cv_arm_tls_desc=no])
+ CFLAGS="$old_CFLAGS"])
+if test $libc_cv_arm_tls_desc = yes; then
+ LIBC_CONFIG_VAR([have-arm-tls-desc], [yes])
+else
+ LIBC_CONFIG_VAR([have-arm-tls-desc], [no])
+fi
+
+AC_CACHE_CHECK([whether PC-relative relocs in movw/movt work properly],
+ libc_cv_arm_pcrel_movw, [
+cat > conftest.s <<\EOF
+ .syntax unified
+ .arm
+ .arch armv7-a
+
+ .text
+ .globl foo
+ .type foo,%function
+foo: movw r0, #:lower16:symbol - 1f - 8
+ movt r0, #:upper16:symbol - 1f - 8
+1: add r0, pc
+ @ And now a case with a local symbol.
+ movw r0, #:lower16:3f - 2f - 8
+ movt r0, #:upper16:3f - 2f - 8
+2: add r0, pc
+ bx lr
+
+.data
+ .globl symbol
+ .hidden symbol
+symbol: .long 23
+3: .long 17
+EOF
+libc_cv_arm_pcrel_movw=no
+${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
+ -nostartfiles -nostdlib -shared \
+ -o conftest.so conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD &&
+LC_ALL=C $READELF -dr conftest.so > conftest.dr 2>&AS_MESSAGE_LOG_FD &&
+{
+ cat conftest.dr 1>&AS_MESSAGE_LOG_FD
+ fgrep 'TEXTREL
+R_ARM_NONE' conftest.dr > /dev/null || libc_cv_arm_pcrel_movw=yes
+}
+rm -f conftest*])
+if test $libc_cv_arm_pcrel_movw = yes; then
+ AC_DEFINE([ARM_PCREL_MOVW_OK])
+fi
+
+# This was buggy in assemblers from GNU binutils versions before 2.25.1
+# (it's known to be broken in 2.24 and 2.25; see
+# https://sourceware.org/bugzilla/show_bug.cgi?id=18383).
+AC_CACHE_CHECK([whether TPOFF relocs with addends are assembled correctly],
+ libc_cv_arm_tpoff_addend, [
+cat > conftest.s <<\EOF
+ .syntax unified
+ .arm
+ .arch armv7-a
+
+ .text
+foo:
+ .word tbase(tpoff)+4
+
+ .section .tdata,"awT",%progbits
+ .word -4
+tbase: .word 0
+ .word 4
+EOF
+libc_cv_arm_tpoff_addend=no
+${CC-cc} -c $CFLAGS $CPPFLAGS \
+ -o conftest.o conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD &&
+LC_ALL=C $READELF -x.text conftest.o > conftest.x 2>&AS_MESSAGE_LOG_FD &&
+{
+ cat conftest.x 1>&AS_MESSAGE_LOG_FD
+ $AWK 'BEGIN { result = 2 }
+$1 ~ /0x0+/ && $2 ~ /[[0-9a-f]]+/ {
+# Check for little-endian or big-endian encoding of 4 in the in-place addend.
+ result = ($2 == "04000000" || $2 == "00000004") ? 0 : 1
+}
+END { exit(result) }
+' conftest.x 2>&AS_MESSAGE_LOG_FD && libc_cv_arm_tpoff_addend=yes
+}
+rm -f conftest*])
+if test $libc_cv_arm_tpoff_addend = no; then
+ LIBC_CONFIG_VAR([test-xfail-tst-tlsalign], [yes])
+ LIBC_CONFIG_VAR([test-xfail-tst-tlsalign-static], [yes])
+fi
+
+
+libc_cv_gcc_unwind_find_fde=no
+
+# Remove -fno-unwind-tables that was added in sysdeps/arm/preconfigure.ac.
+CFLAGS=${CFLAGS% -fno-unwind-tables}
+
+dnl The normal configure check for gcc -fexecptions fails because it can't
+dnl find __aeabi_unwind_cpp_pr0. Work around this here; our GCC definitely
+dnl has -fexceptions.
+libc_cv_gcc_exceptions=yes
+exceptions=-fexceptions