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authorGabe Black <gblack@eecs.umich.edu>2011-09-19 02:46:48 -0700
committerGabe Black <gblack@eecs.umich.edu>2011-09-19 02:46:48 -0700
commit10c2e37f604280fb89d800839cc965204d096c59 (patch)
tree4f71f4ebc8d3c9c20d2f8058410974bf8e2e0608 /src/cpu/simple
parent83aa47adca17be33d53da6734ea422e1e0e2a07c (diff)
downloadgem5-10c2e37f604280fb89d800839cc965204d096c59.tar.xz
Syscall: Make the syscall function available in both SE and FS modes.
In FS mode the syscall function will panic, but the interface will be consistent and code which calls syscall can be compiled in. This will allow, for instance, instructions that use syscall to be built unconditionally but then not returned by the decoder.
Diffstat (limited to 'src/cpu/simple')
-rw-r--r--src/cpu/simple/base.hh10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/cpu/simple/base.hh b/src/cpu/simple/base.hh
index b27ebf998..ad281aa2b 100644
--- a/src/cpu/simple/base.hh
+++ b/src/cpu/simple/base.hh
@@ -402,9 +402,17 @@ class BaseSimpleCPU : public BaseCPU
#if FULL_SYSTEM
Fault hwrei() { return thread->hwrei(); }
bool simPalCheck(int palFunc) { return thread->simPalCheck(palFunc); }
+#endif
+
+ void
+ syscall(int64_t callnum)
+ {
+#if FULL_SYSTEM
+ panic("Syscall emulation isn't available in FS mode.\n");
#else
- void syscall(int64_t callnum) { thread->syscall(callnum); }
+ thread->syscall(callnum);
#endif
+ }
bool misspeculating() { return thread->misspeculating(); }
ThreadContext *tcBase() { return tc; }