Add a start/end file specification if the -qrtems option is present.
Allow targets to customize it.
Support the standard -nodefaultlibs option.
gcc/
* config/rtems.h (RTEMS_STARTFILE_SPEC): Define if undefined.
(RTEMS_ENDFILE_SPEC): Likewise.
(STARTFILE_SPEC): Update comment. Add RTEMS_STARTFILE_SPEC.
(ENDFILE_SPEC): Add RTEMS_ENDFILE_SPEC.
(LIB_SPECS): Support -nodefaultlibs option.
* config/or1k/rtems.h (RTEMS_STARTFILE_SPEC): Define.
(RTEMS_ENDFILE_SPEC): Likewise.
* config/rs6000/rtems.h (RTEMS_STARTFILE_SPEC): Likewise.
(RTEMS_ENDFILE_SPEC): Likewise.
* config/v850/rtems.h (RTEMS_STARTFILE_SPEC): Likewise.
(RTEMS_ENDFILE_SPEC): Likewise.
---
gcc/config/or1k/rtems.h | 3 +++
gcc/config/rs6000/rtems.h | 3 +++
gcc/config/rtems.h | 26 ++++++++++++++++++--------
gcc/config/v850/rtems.h | 3 +++
4 files changed, 27 insertions(+), 8 deletions(-)
diff --git a/gcc/config/or1k/rtems.h b/gcc/config/or1k/rtems.h
index 94731435f44..d4b8fef3dc7 100644
--- a/gcc/config/or1k/rtems.h
+++ b/gcc/config/or1k/rtems.h
@@ -28,3 +28,6 @@
builtin_assert ("system=rtems"); \
} \
while (0)
+
+#define RTEMS_STARTFILE_SPEC "crtbegin%O%s"
+#define RTEMS_ENDFILE_SPEC "crtend%O%s"
diff --git a/gcc/config/rs6000/rtems.h b/gcc/config/rs6000/rtems.h
index 6ce05bfc6d6..40db6606f17 100644
--- a/gcc/config/rs6000/rtems.h
+++ b/gcc/config/rs6000/rtems.h
@@ -292,3 +292,6 @@
"%{mads|myellowknife|mmvme|msim:%G %L %G;" \
"!mcall-*|mcall-linux:" GNU_USER_TARGET_LINK_GCC_C_SEQUENCE_SPEC ";" \
":%G %L %G}"
+
+#define RTEMS_STARTFILE_SPEC "ecrti%O%s rtems_crti%O%s crtbegin%O%s"
+#define RTEMS_ENDFILE_SPEC "crtend%O%s rtems_crtn%O%s ecrtn%O%s"
diff --git a/gcc/config/rtems.h b/gcc/config/rtems.h
index 55d568f83b5..30ad6258949 100644
--- a/gcc/config/rtems.h
+++ b/gcc/config/rtems.h
@@ -22,15 +22,25 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
+#ifndef RTEMS_STARTFILE_SPEC
+#define RTEMS_STARTFILE_SPEC "crti%O%s crtbegin%O%s"
+#endif
+
+#ifndef RTEMS_ENDFILE_SPEC
+#define RTEMS_ENDFILE_SPEC "crtend%O%s crtn%O%s"
+#endif
+
/*
- * Dummy start/end specification to let linker work as
- * needed by autoconf scripts using this compiler.
+ * The crt0.o is a dummy start file to let the linker work as needed by
+ * autoconf scripts using this compiler.
*/
#undef STARTFILE_SPEC
-#define STARTFILE_SPEC "crt0.o%s"
+#define STARTFILE_SPEC "%{!qrtems:crt0%O%s} " \
+"%{qrtems:%{!nostdlib:%{!nostartfiles:" RTEMS_STARTFILE_SPEC "}}}"
#undef ENDFILE_SPEC
-#define ENDFILE_SPEC ""
+#define ENDFILE_SPEC \
+"%{qrtems:%{!nostdlib:%{!nostartfiles:" RTEMS_ENDFILE_SPEC "}}}"
/*
* Some targets do not set up LIB_SPECS, override it, here.
@@ -38,10 +48,10 @@
#define STD_LIB_SPEC "%{!shared:%{g*:-lg}
%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
#undef LIB_SPEC
-#define LIB_SPEC "%{!qrtems: " STD_LIB_SPEC "} " \
-"%{!nostdlib: %{qrtems: --start-group \
- -lrtemsbsp -lrtemscpu \
- -latomic -lc -lgcc --end-group %{!qnolinkcmds: -T linkcmds%s}}}"
+#define LIB_SPEC "%{!qrtems:" STD_LIB_SPEC "} " \
+"%{qrtems:%{!nostdlib:%{!nodefaultlibs:" \
+"--start-group -lrtemsbsp -lrtemscpu -latomic -lc -lgcc --end-group} " \
+"%{!qnolinkcmds:-T linkcmds%s}}}"
#define TARGET_POSIX_IO
diff --git a/gcc/config/v850/rtems.h b/gcc/config/v850/rtems.h
index 3f7d39a2cd1..e261ea3b417 100644
--- a/gcc/config/v850/rtems.h
+++ b/gcc/config/v850/rtems.h
@@ -39,3 +39,6 @@
%{!mv850es:%{!mv850e1:%{mv*:-mv%*}} \
%{m8byte-align:-m8byte-align} \
%{mgcc-abi:-mgcc-abi}}"
+
+#define RTEMS_STARTFILE_SPEC ""
+#define RTEMS_ENDFILE_SPEC ""
--
2.16.4
