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authorGabe Black <gblack@eecs.umich.edu>2007-11-11 17:23:22 -0800
committerGabe Black <gblack@eecs.umich.edu>2007-11-11 17:23:22 -0800
commitada071db53208bf02afee79390d1169130ce99ed (patch)
tree943b932adcabd17a38a2b510afe10c172f8f08f5 /src/arch/sparc
parent6cfe4176f506ba0bdcb54a016da0d8063913e9c4 (diff)
downloadgem5-ada071db53208bf02afee79390d1169130ce99ed.tar.xz
SPARC: Force %g1 to be zero on process startup even though it normally already should be.
--HG-- extra : convert_revision : 9feb63109e8c955b49c7e96acad1ad7c29a4349f
Diffstat (limited to 'src/arch/sparc')
-rw-r--r--src/arch/sparc/process.cc8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/arch/sparc/process.cc b/src/arch/sparc/process.cc
index 1f5d0b077..0c40fe58d 100644
--- a/src/arch/sparc/process.cc
+++ b/src/arch/sparc/process.cc
@@ -429,6 +429,10 @@ Sparc64LiveProcess::argsInit(int intSize, int pageSize)
threadContexts[0]->setIntReg(ArgumentReg[1], argv_array_base);
threadContexts[0]->setIntReg(StackPointerReg, stack_min - StackBias);
+ // %g1 is a pointer to a function that should be run at exit. Since we
+ // don't have anything like that, it should be set to 0.
+ threadContexts[0]->setIntReg(1, 0);
+
Addr prog_entry = objFile->entryPoint();
threadContexts[0]->setPC(prog_entry);
threadContexts[0]->setNextPC(prog_entry + sizeof(MachInst));
@@ -658,6 +662,10 @@ Sparc32LiveProcess::argsInit(int intSize, int pageSize)
//threadContexts[0]->setIntReg(ArgumentReg[1], argv_array_base);
threadContexts[0]->setIntReg(StackPointerReg, stack_min);
+ // %g1 is a pointer to a function that should be run at exit. Since we
+ // don't have anything like that, it should be set to 0.
+ threadContexts[0]->setIntReg(1, 0);
+
uint32_t prog_entry = objFile->entryPoint();
threadContexts[0]->setPC(prog_entry);
threadContexts[0]->setNextPC(prog_entry + sizeof(MachInst));