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-rw-r--r--ports/sysdeps/unix/sysv/linux/mips/Makefile90
-rw-r--r--ports/sysdeps/unix/sysv/linux/mips/configure171
-rw-r--r--ports/sysdeps/unix/sysv/linux/mips/configure.in23
-rw-r--r--ports/sysdeps/unix/sysv/linux/mips/dl-cache.h26
-rw-r--r--ports/sysdeps/unix/sysv/linux/mips/readelflib.c35
5 files changed, 316 insertions, 29 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/mips/Makefile b/ports/sysdeps/unix/sysv/linux/mips/Makefile
index 1e54036bfe..9070b775c4 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/Makefile
+++ b/ports/sysdeps/unix/sysv/linux/mips/Makefile
@@ -8,7 +8,9 @@ sysdep_routines += cachectl cacheflush sysmips _test_and_set
sysdep_headers += sys/cachectl.h sys/sysmips.h sys/tas.h
endif
-abi-variants := o32_soft o32_hard n32_soft n32_hard n64_soft n64_hard
+abi-variants := o32_soft o32_hard o32_soft_2008 o32_hard_2008
+abi-variants += n32_soft n32_hard n32_soft_2008 n32_hard_2008
+abi-variants += n64_soft n64_hard n64_soft_2008 n64_hard_2008
ifeq (,$(filter $(default-abi),$(abi-variants)))
Unknown ABI, must be one of $(abi-variants)
@@ -18,29 +20,89 @@ abi-includes := sgidefs.h
# _MIPS_SIM_ABI32 == 1, _MIPS_SIM_NABI32 == 2, _MIPS_SIM_ABI64 == 3
abi-o32_soft-options := -U_MIPS_SIM -D_MIPS_SIM=1 \
- -D__mips_soft_float -U__mips_hard_float
-abi-o32_soft-condition := defined(__mips_soft_float) \
- && (_MIPS_SIM == _MIPS_SIM_ABI32)
+ -D__mips_soft_float -U__mips_hard_float \
+ -U__mips_nan2008
+abi-o32_soft-condition := !defined(__mips_nan2008) \
+ && defined(__mips_soft_float) \
+ && (_MIPS_SIM == _MIPS_SIM_ABI32)
+abi-o32_soft-ld-soname := ld.so.1
abi-o32_hard-options := -U_MIPS_SIM -D_MIPS_SIM=1 \
- -D__mips_hard_float -U__mips_soft_float
-abi-o32_hard-condition := defined(__mips_hard_float) \
+ -D__mips_hard_float -U__mips_soft_float \
+ -U__mips_nan2008
+abi-o32_hard-condition := !defined(__mips_nan2008) \
+ && defined(__mips_hard_float) \
&& (_MIPS_SIM == _MIPS_SIM_ABI32)
+abi-o32_hard-ld-soname := ld.so.1
+abi-o32_soft_2008-options := -U_MIPS_SIM -D_MIPS_SIM=1 \
+ -D__mips_soft_float -U__mips_hard_float \
+ -D__mips_nan2008
+abi-o32_soft_2008-condition := defined(__mips_nan2008) \
+ && defined(__mips_soft_float) \
+ && (_MIPS_SIM == _MIPS_SIM_ABI32)
+abi-o32_soft_2008-ld-soname := ld-linux-mipsn8.so.1
+abi-o32_hard_2008-options := -U_MIPS_SIM -D_MIPS_SIM=1 \
+ -D__mips_hard_float -U__mips_soft_float \
+ -D__mips_nan2008
+abi-o32_hard_2008-condition := defined(__mips_nan2008) \
+ && defined(__mips_hard_float) \
+ && (_MIPS_SIM == _MIPS_SIM_ABI32)
+abi-o32_hard_2008-ld-soname := ld-linux-mipsn8.so.1
abi-n32_soft-options := -U_MIPS_SIM -D_MIPS_SIM=2 \
- -D__mips_soft_float -U__mips_hard_float
-abi-n32_soft-condition := defined(__mips_soft_float) \
+ -D__mips_soft_float -U__mips_hard_float \
+ -U__mips_nan2008
+abi-n32_soft-condition := !defined(__mips_nan2008) \
+ && defined(__mips_soft_float) \
&& (_MIPS_SIM == _MIPS_SIM_NABI32)
+abi-n32_soft-ld-soname := ld.so.1
abi-n32_hard-options := -U_MIPS_SIM -D_MIPS_SIM=2 \
- -D__mips_hard_float -U__mips_soft_float
-abi-n32_hard-condition := defined(__mips_hard_float) \
+ -D__mips_hard_float -U__mips_soft_float \
+ -U__mips_nan2008
+abi-n32_hard-condition := !defined(__mips_nan2008) \
+ && defined(__mips_hard_float) \
&& (_MIPS_SIM == _MIPS_SIM_NABI32)
+abi-n32_hard-ld-soname := ld.so.1
+abi-n32_soft_2008-options := -U_MIPS_SIM -D_MIPS_SIM=2 \
+ -D__mips_soft_float -U__mips_hard_float \
+ -D__mips_nan2008
+abi-n32_soft_2008-condition := defined(__mips_nan2008) \
+ && defined(__mips_soft_float) \
+ && (_MIPS_SIM == _MIPS_SIM_NABI32)
+abi-n32_soft_2008-ld-soname := ld-linux-mipsn8.so.1
+abi-n32_hard_2008-options := -U_MIPS_SIM -D_MIPS_SIM=2 \
+ -D__mips_hard_float -U__mips_soft_float \
+ -D__mips_nan2008
+abi-n32_hard_2008-condition := defined(__mips_nan2008) \
+ && defined(__mips_hard_float) \
+ && (_MIPS_SIM == _MIPS_SIM_NABI32)
+abi-n32_hard_2008-ld-soname := ld-linux-mipsn8.so.1
abi-n64_soft-options := -U_MIPS_SIM -D_MIPS_SIM=3 \
- -D__mips_soft_float -U__mips_hard_float
-abi-n64_soft-condition := defined(__mips_soft_float) \
+ -D__mips_soft_float -U__mips_hard_float \
+ -U__mips_nan2008
+abi-n64_soft-condition := !defined(__mips_nan2008) \
+ && defined(__mips_soft_float) \
&& (_MIPS_SIM == _MIPS_SIM_ABI64)
+abi-n64_soft-ld-soname := ld.so.1
abi-n64_hard-options := -U_MIPS_SIM -D_MIPS_SIM=3 \
- -D__mips_hard_float -U__mips_soft_float
-abi-n64_hard-condition := defined(__mips_hard_float) \
+ -D__mips_hard_float -U__mips_soft_float \
+ -U__mips_nan2008
+abi-n64_hard-condition := !defined(__mips_nan2008) \
+ && defined(__mips_hard_float) \
&& (_MIPS_SIM == _MIPS_SIM_ABI64)
+abi-n64_hard-ld-soname := ld.so.1
+abi-n64_soft_2008-options := -U_MIPS_SIM -D_MIPS_SIM=3 \
+ -D__mips_soft_float -U__mips_hard_float \
+ -D__mips_nan2008
+abi-n64_soft_2008-condition := defined(__mips_nan2008) \
+ && defined(__mips_soft_float) \
+ && (_MIPS_SIM == _MIPS_SIM_ABI64)
+abi-n64_soft_2008-ld-soname := ld-linux-mipsn8.so.1
+abi-n64_hard_2008-options := -U_MIPS_SIM -D_MIPS_SIM=3 \
+ -D__mips_hard_float -U__mips_soft_float \
+ -D__mips_nan2008
+abi-n64_hard_2008-condition := defined(__mips_nan2008) \
+ && defined(__mips_hard_float) \
+ && (_MIPS_SIM == _MIPS_SIM_ABI64)
+abi-n64_hard_2008-ld-soname := ld-linux-mipsn8.so.1
ifeq ($(subdir),elf)
ifeq ($(build-shared),yes)
diff --git a/ports/sysdeps/unix/sysv/linux/mips/configure b/ports/sysdeps/unix/sysv/linux/mips/configure
index b4ee83e3ae..088210ff97 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/configure
+++ b/ports/sysdeps/unix/sysv/linux/mips/configure
@@ -105,8 +105,168 @@ if test -z "$libc_mips_float"; then
as_fn_error $? "could not determine if compiler is using hard or soft floating point ABI" "$LINENO" 5
fi
+
+{ $as_echo "$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 2008 NaN encoding" >&5
+$as_echo_n "checking whether the compiler is using the 2008 NaN encoding... " >&6; }
+if ${libc_cv_mips_nan2008+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+dnl
+#ifdef __mips_nan2008
+yes
+#endif
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "yes" >/dev/null 2>&1; then :
+ libc_cv_mips_nan2008=yes
+else
+ libc_cv_mips_nan2008=no
+fi
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mips_nan2008" >&5
+$as_echo "$libc_cv_mips_nan2008" >&6; }
+
+libc_mips_nan=
+if test x"$libc_cv_mips_nan2008" = xyes; then
+ libc_mips_nan=_2008
+fi
+
config_vars="$config_vars
-default-abi = ${libc_mips_abi}_${libc_mips_float}"
+default-abi = ${libc_mips_abi}_${libc_mips_float}${libc_mips_nan}"
case "$prefix" in
/usr | /usr/)
@@ -138,3 +298,12 @@ case "$prefix" in
esac
libc_cv_gcc_unwind_find_fde=yes
+
+if test -z "$arch_minimum_kernel"; then
+ if test x$libc_cv_mips_nan2008 = xyes; then
+ # FIXME: Adjust this setting to the actual first upstream kernel
+ # version to support the 2008 NaN encoding and then remove this
+ # comment.
+ arch_minimum_kernel=10.0.0
+ fi
+fi
diff --git a/ports/sysdeps/unix/sysv/linux/mips/configure.in b/ports/sysdeps/unix/sysv/linux/mips/configure.in
index b8dde6ef7a..7087a14a5e 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/configure.in
+++ b/ports/sysdeps/unix/sysv/linux/mips/configure.in
@@ -44,7 +44,19 @@ if test -z "$libc_mips_float"; then
AC_MSG_ERROR([could not determine if compiler is using hard or soft floating point ABI])
fi
-LIBC_CONFIG_VAR([default-abi], [${libc_mips_abi}_${libc_mips_float}])
+AC_CACHE_CHECK([whether the compiler is using the 2008 NaN encoding],
+ libc_cv_mips_nan2008, [AC_EGREP_CPP(yes, [dnl
+#ifdef __mips_nan2008
+yes
+#endif], libc_cv_mips_nan2008=yes, libc_cv_mips_nan2008=no)])
+
+libc_mips_nan=
+if test x"$libc_cv_mips_nan2008" = xyes; then
+ libc_mips_nan=_2008
+fi
+
+LIBC_CONFIG_VAR([default-abi],
+ [${libc_mips_abi}_${libc_mips_float}${libc_mips_nan}])
case "$prefix" in
/usr | /usr/)
@@ -76,3 +88,12 @@ case "$prefix" in
esac
libc_cv_gcc_unwind_find_fde=yes
+
+if test -z "$arch_minimum_kernel"; then
+ if test x$libc_cv_mips_nan2008 = xyes; then
+ # FIXME: Adjust this setting to the actual first upstream kernel
+ # version to support the 2008 NaN encoding and then remove this
+ # comment.
+ arch_minimum_kernel=10.0.0
+ fi
+fi
diff --git a/ports/sysdeps/unix/sysv/linux/mips/dl-cache.h b/ports/sysdeps/unix/sysv/linux/mips/dl-cache.h
index 4a7f3f1f2a..49ad99ab92 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/dl-cache.h
+++ b/ports/sysdeps/unix/sysv/linux/mips/dl-cache.h
@@ -18,11 +18,27 @@
#include <ldconfig.h>
-/* Redefine the cache ID for new ABIs; o32 keeps using the generic check. */
-#if _MIPS_SIM == _ABI64
-# define _DL_CACHE_DEFAULT_ID (FLAG_MIPS64_LIBN64 | FLAG_ELF_LIBC6)
-#elif _MIPS_SIM == _ABIN32
-# define _DL_CACHE_DEFAULT_ID (FLAG_MIPS64_LIBN32 | FLAG_ELF_LIBC6)
+#if ((defined __mips_nan2008 && !defined HAVE_MIPS_NAN2008) \
+ || (!defined __mips_nan2008 && defined HAVE_MIPS_NAN2008))
+# error "Configuration inconsistency: __mips_nan2008 != HAVE_MIPS_NAN2008, overridden CFLAGS?"
+#endif
+
+/* Redefine the cache ID for new ABIs and 2008 NaN support; legacy o32
+ keeps using the generic check. */
+#ifdef __mips_nan2008
+# if _MIPS_SIM == _ABIO32
+# define _DL_CACHE_DEFAULT_ID (FLAG_MIPS_LIB32_NAN2008 | FLAG_ELF_LIBC6)
+# elif _MIPS_SIM == _ABI64
+# define _DL_CACHE_DEFAULT_ID (FLAG_MIPS64_LIBN64_NAN2008 | FLAG_ELF_LIBC6)
+# elif _MIPS_SIM == _ABIN32
+# define _DL_CACHE_DEFAULT_ID (FLAG_MIPS64_LIBN32_NAN2008 | FLAG_ELF_LIBC6)
+# endif
+#else
+# if _MIPS_SIM == _ABI64
+# define _DL_CACHE_DEFAULT_ID (FLAG_MIPS64_LIBN64 | FLAG_ELF_LIBC6)
+# elif _MIPS_SIM == _ABIN32
+# define _DL_CACHE_DEFAULT_ID (FLAG_MIPS64_LIBN32 | FLAG_ELF_LIBC6)
+# endif
#endif
#ifdef _DL_CACHE_DEFAULT_ID
diff --git a/ports/sysdeps/unix/sysv/linux/mips/readelflib.c b/ports/sysdeps/unix/sysv/linux/mips/readelflib.c
index 10f0ff7022..fd57a735c3 100644
--- a/ports/sysdeps/unix/sysv/linux/mips/readelflib.c
+++ b/ports/sysdeps/unix/sysv/linux/mips/readelflib.c
@@ -33,19 +33,32 @@ process_elf_file (const char *file_name, const char *lib, int *flag,
unsigned int *osversion, char **soname, void *file_contents,
size_t file_length)
{
- ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents;
+ union
+ {
+ Elf64_Ehdr *eh64;
+ Elf32_Ehdr *eh32;
+ ElfW(Ehdr) *eh;
+ }
+ elf_header;
int ret;
- if (elf_header->e_ident [EI_CLASS] == ELFCLASS32)
+ elf_header.eh = file_contents;
+ if (elf_header.eh->e_ident [EI_CLASS] == ELFCLASS32)
{
- Elf32_Ehdr *elf32_header = (Elf32_Ehdr *) elf_header;
-
ret = process_elf32_file (file_name, lib, flag, osversion, soname,
file_contents, file_length);
+ if (!ret)
+ {
+ Elf32_Word flags = elf_header.eh32->e_flags;
+ int nan2008 = (flags & EF_MIPS_NAN2008) != 0;
- /* n32 libraries are always libc.so.6+. */
- if (!ret && (elf32_header->e_flags & EF_MIPS_ABI2) != 0)
- *flag = FLAG_MIPS64_LIBN32|FLAG_ELF_LIBC6;
+ /* n32 libraries are always libc.so.6+, o32 only if 2008 NaN. */
+ if ((flags & EF_MIPS_ABI2) != 0)
+ *flag = (nan2008 ? FLAG_MIPS64_LIBN32_NAN2008
+ : FLAG_MIPS64_LIBN32) | FLAG_ELF_LIBC6;
+ else if (nan2008)
+ *flag = FLAG_MIPS_LIB32_NAN2008 | FLAG_ELF_LIBC6;
+ }
}
else
{
@@ -53,7 +66,13 @@ process_elf_file (const char *file_name, const char *lib, int *flag,
file_contents, file_length);
/* n64 libraries are always libc.so.6+. */
if (!ret)
- *flag = FLAG_MIPS64_LIBN64|FLAG_ELF_LIBC6;
+ {
+ Elf64_Word flags = elf_header.eh64->e_flags;
+ int nan2008 = (flags & EF_MIPS_NAN2008) != 0;
+
+ *flag = (nan2008 ? FLAG_MIPS64_LIBN64_NAN2008
+ : FLAG_MIPS64_LIBN64) | FLAG_ELF_LIBC6;
+ }
}
return ret;
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