gcc/ChangeLog:
* config/csky/csky.opt (msim): New.
* doc/invoke.texi (C-SKY Options): Document -msim.
* config/csky/csky-elf.h (LIB_SPEC): Add simulator runtime.
---
gcc/config/csky/csky-elf.h | 10 ++++++++--
gcc/config/csky/csky.opt | 4 ++++
gcc/doc/invoke.texi | 7 ++++++-
3 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/gcc/config/csky/csky-elf.h b/gcc/config/csky/csky-elf.h
index 15a0e73..a79d757 100644
--- a/gcc/config/csky/csky-elf.h
+++ b/gcc/config/csky/csky-elf.h
@@ -70,8 +70,14 @@
%{EL:-EL} -X"
#undef LIB_SPEC
-#define LIB_SPEC \
- "%{pthread:-lpthread} -lc %{mccrt:-lcc-rt}"
+#define LIB_SPEC "\
+%{pthread:-lpthread} \
+--start-group \
+-lc \
+%{msim:-lsemi}%{!msim:-lnosys} \
+--end-group \
+%{mccrt:-lcc-rt} \
+"
/* FIXME add this to LIB_SPEC when need */
/* %{!shared:%{profile:-lc_p}%{!profile:-lc}}" */
diff --git a/gcc/config/csky/csky.opt b/gcc/config/csky/csky.opt
index 60b51e5..505a764 100644
--- a/gcc/config/csky/csky.opt
+++ b/gcc/config/csky/csky.opt
@@ -192,3 +192,7 @@ Set the branch costs to roughly the specified number of
instructions.
msched-prolog
Target Report Var(flag_sched_prolog) Init(0)
Permit scheduling of function prologue and epilogue sequences.
+
+msim
+Target
+Use the simulator runtime.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 6d9ff2c..9176c83 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -829,7 +829,7 @@ Objective-C and Objective-C++ Dialects}.
-mdsp -medsp -mvdsp @gol
-mdiv -msmart -mhigh-registers -manchor @gol
-mpushpop -mmultiple-stld -mconstpool -mstack-size -mccrt @gol
--mbranch-cost=@var{n} -mcse-cc -msched-prolog}
+-mbranch-cost=@var{n} -mcse-cc -msched-prolog -msim}
@emph{Darwin Options}
@gccoptlist{-all_load -allowable_client -arch -arch_errors_fatal @gol
@@ -20835,6 +20835,11 @@ this option can result in code that is not compliant
with the C-SKY V2 ABI
prologue requirements and that cannot be debugged or backtraced.
It is disabled by default.
+@item -msim
+@opindex msim
+Links the library libsemi.a which is in compatible with simulator. Applicable
+to ELF compiler only.
+
@end table
@node Darwin Options
--
1.9.1
