gcc/ChangeLog:
* config.in: Regenerate.
* config/loongarch/genopts/loongarch.opt.in: Add compilation option
mrelax. And set the initial value of explicit-relocs according to the
detection status.
* config/loongarch/gnu-user.h: When compiling with -mno-relax, pass the
--no-relax option to the linker.
* config/loongarch/loongarch-driver.h (ASM_SPEC): When compiling with
-mno-relax, pass the -mno-relax option to the assembler.
* config/loongarch/loongarch-opts.h (HAVE_AS_MRELAX_OPTION): Define
macro.
* config/loongarch/loongarch.opt: Regenerate.
* configure: Regenerate.
* configure.ac: Add detection of support for binutils relax function.
(cherry picked from commint 9bab65a77049edcc7afc59532173206ee816e726)
---
gcc/config.in | 12 +++++++
gcc/config/loongarch/genopts/loongarch.opt.in | 5 +++
gcc/config/loongarch/gnu-user.h | 4 +--
gcc/config/loongarch/loongarch-opts.h | 4 +++
gcc/config/loongarch/loongarch.opt | 5 +++
gcc/configure | 31 +++++++++++++++++++
gcc/configure.ac | 4 +++
7 files changed, 63 insertions(+), 2 deletions(-)
diff --git a/gcc/config.in b/gcc/config.in
index cc638759a40..f5b6287a96a 100644
--- a/gcc/config.in
+++ b/gcc/config.in
@@ -630,6 +630,12 @@
#endif
+/* Define if your assembler supports -mrelax option. */
+#ifndef USED_FOR_TARGET
+#undef HAVE_AS_MRELAX_OPTION
+#endif
+
+
/* Define if your assembler supports .mspabi_attribute. */
#ifndef USED_FOR_TARGET
#undef HAVE_AS_MSPABI_ATTRIBUTE
@@ -2214,6 +2220,12 @@
#endif
+/* Define which stat syscall is able to handle 64bit indodes. */
+#ifndef USED_FOR_TARGET
+#undef HOST_STAT_FOR_64BIT_INODES
+#endif
+
+
/* Define as const if the declaration of iconv() needs const. */
#ifndef USED_FOR_TARGET
#undef ICONV_CONST
diff --git a/gcc/config/loongarch/genopts/loongarch.opt.in
b/gcc/config/loongarch/genopts/loongarch.opt.in
index 61e7d72a0a1..edc2ed045d7 100644
--- a/gcc/config/loongarch/genopts/loongarch.opt.in
+++ b/gcc/config/loongarch/genopts/loongarch.opt.in
@@ -177,3 +177,8 @@ Enum(cmodel) String(@@STR_CMODEL_EXTREME@@)
Value(CMODEL_EXTREME)
mcmodel=
Target RejectNegative Joined Enum(cmodel) Var(la_opt_cmodel)
Init(CMODEL_NORMAL)
Specify the code model.
+
+mrelax
+Target Var(loongarch_mrelax) Init(HAVE_AS_MRELAX_OPTION)
+Take advantage of linker relaxations to reduce the number of instructions
+required to materialize symbol addresses.
diff --git a/gcc/config/loongarch/gnu-user.h b/gcc/config/loongarch/gnu-user.h
index f050078da52..28ac8b0e1f6 100644
--- a/gcc/config/loongarch/gnu-user.h
+++ b/gcc/config/loongarch/gnu-user.h
@@ -46,8 +46,8 @@ along with GCC; see the file COPYING3. If not see
#define GNU_USER_TARGET_LINK_SPEC \
"%{G*} %{shared} -m " GNU_USER_LINK_EMULATION \
"%{!shared: %{static} %{!static: %{rdynamic:-export-dynamic} " \
- "-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
-
+ "-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}" \
+ "%{mno-relax: --no-relax}"
/* Similar to standard Linux, but adding -ffast-math support. */
#undef GNU_USER_TARGET_MATHFILE_SPEC
diff --git a/gcc/config/loongarch/loongarch-opts.h
b/gcc/config/loongarch/loongarch-opts.h
index eaa6fc07448..60e682f57a0 100644
--- a/gcc/config/loongarch/loongarch-opts.h
+++ b/gcc/config/loongarch/loongarch-opts.h
@@ -87,4 +87,8 @@ loongarch_config_target (struct loongarch_target *target,
while -m[no]-memcpy imposes a global constraint. */
#define TARGET_DO_OPTIMIZE_BLOCK_MOVE_P loongarch_do_optimize_block_move_p()
+#ifndef HAVE_AS_MRELAX_OPTION
+#define HAVE_AS_MRELAX_OPTION 0
+#endif
+
#endif /* LOONGARCH_OPTS_H */
diff --git a/gcc/config/loongarch/loongarch.opt
b/gcc/config/loongarch/loongarch.opt
index 3ff0d860413..78b5e0cc452 100644
--- a/gcc/config/loongarch/loongarch.opt
+++ b/gcc/config/loongarch/loongarch.opt
@@ -184,3 +184,8 @@ Enum(cmodel) String(extreme) Value(CMODEL_EXTREME)
mcmodel=
Target RejectNegative Joined Enum(cmodel) Var(la_opt_cmodel)
Init(CMODEL_NORMAL)
Specify the code model.
+
+mrelax
+Target Var(loongarch_mrelax) Init(HAVE_AS_MRELAX_OPTION)
+Take advantage of linker relaxations to reduce the number of instructions
+required to materialize symbol addresses.
diff --git a/gcc/configure b/gcc/configure
index b4907d258be..67cdd92a4f3 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -28871,6 +28871,37 @@ if test $gcc_cv_as_loongarch_dtprelword != yes; then
$as_echo "#define HAVE_AS_DTPRELWORD 1" >>confdefs.h
fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for -mrelax
option" >&5
+$as_echo_n "checking assembler for -mrelax option... " >&6; }
+if ${gcc_cv_as_loongarch_relax+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ gcc_cv_as_loongarch_relax=no
+ if test x$gcc_cv_as != x; then
+ $as_echo '.text' > conftest.s
+ if { ac_try='$gcc_cv_as $gcc_cv_as_flags -mrelax -o conftest.o conftest.s
>&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+ then
+ gcc_cv_as_loongarch_relax=yes
+ else
+ echo "configure: failed program was" >&5
+ cat conftest.s >&5
+ fi
+ rm -f conftest.o conftest.s
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_loongarch_relax"
>&5
+$as_echo "$gcc_cv_as_loongarch_relax" >&6; }
+if test $gcc_cv_as_loongarch_relax = yes; then
+
+$as_echo "#define HAVE_AS_MRELAX_OPTION 1" >>confdefs.h
+
+fi
+
;;
s390*-*-*)
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for
.gnu_attribute support" >&5
diff --git a/gcc/configure.ac b/gcc/configure.ac
index d369c4717b2..e08ac5f4b49 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -5336,6 +5336,10 @@ x:
.dtprelword x+0x8000],,
[AC_DEFINE(HAVE_AS_DTPRELWORD, 1,
[Define if your assembler supports .dtprelword.])])
+ gcc_GAS_CHECK_FEATURE([-mrelax option], gcc_cv_as_loongarch_relax,
+ [-mrelax], [.text],,
+ [AC_DEFINE(HAVE_AS_MRELAX_OPTION, 1,
+ [Define if your assembler supports -mrelax option.])])
;;
s390*-*-*)
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
--
2.39.3
