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msp430.h (LIB_SPEC): Add -lcrt 

* config/msp430/msp430.h (LIB_SPEC): Add -lcrt
* config/msp430/msp430.md (msp430_refsym_need_exit): New.
* config/msp430/msp430.c (msp430_expand_epilogue): Call it
whenever main() has an epilogue.

From-SVN: r207334
This commit is contained in:
DJ Delorie 2014-01-30 23:17:38 -05:00 committed by DJ Delorie
parent f221dc810d
commit 4f50b9ff56
4 changed files with 21 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2014-01-30 DJ Delorie <dj@redhat.com>
* config/msp430/msp430.h (LIB_SPEC): Add -lcrt
* config/msp430/msp430.md (msp430_refsym_need_exit): New.
* config/msp430/msp430.c (msp430_expand_epilogue): Call it
whenever main() has an epilogue.
2014-01-30 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/rs6000.c (rs6000_expand_vector_init): Remove

3
gcc/config/msp430/msp430.c
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@ -1429,6 +1429,9 @@ msp430_expand_epilogue (int is_eh)
emit_insn (gen_epilogue_start_marker ());
if (cfun->decl && strcmp (IDENTIFIER_POINTER (DECL_NAME (cfun->decl)), "main") == 0)
emit_insn (gen_msp430_refsym_need_exit ());
if (is_wakeup_func ())
/* Clear the SCG1, SCG0, OSCOFF and CPUOFF bits in the saved copy of the
status register current residing on the stack. When this function

1
gcc/config/msp430/msp430.h
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@ -68,6 +68,7 @@ extern bool msp430x;
--start-group \
-lc \
-lgcc \
-lcrt \
%{msim:-lsim} \
%{!msim:-lnosys} \
--end-group \

10
gcc/config/msp430/msp430.md
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@ -45,6 +45,8 @@
UNS_POP_INTR
UNS_BIC_SR
UNS_BIS_SR
UNS_REFSYM_NEED_EXIT
])
(include "predicates.md")
@ -938,6 +940,14 @@
"; start of epilogue"
)
;; This makes the linker add a call to exit() after the call to main()
;; in crt0
(define_insn "msp430_refsym_need_exit"
[(unspec_volatile [(const_int 0)] UNS_REFSYM_NEED_EXIT)]
""
".refsym\t__crt0_call_exit"
)
;;------------------------------------------------------------
;; Jumps