6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-11-01 15:17:25 +00:00
Code Issues Projects Releases Wiki Activity

JITEmitter.cpp was trying to sync the icache for function stubs, but

Browse Source 
was actually passing a completely incorrect size to sys_icache_invalidate.
Instead of having the JITEmitter do this (which doesn't have the correct 
size), just make the target sync its own stubs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46354 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2008-01-25 16:41:09 +00:00
parent a095db13bf
commit 1910e2f3ec
2 changed files with 19 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
lib/Target/PowerPC/PPCJITInfo.cpp
View File

@@ -324,6 +324,20 @@ PPCJITInfo::getLazyResolverFunction(JITCompilerFn Fn) {
return is64Bit ? PPC64CompilationCallback : PPC32CompilationCallback;
}
#if (defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)) && \
defined(__APPLE__)
extern "C" void sys_icache_invalidate(const void *Addr, size_t len);
#endif
/// SyncICache - On PPC, the JIT emitted code must be explicitly refetched to
/// ensure correct execution.
static void SyncICache(const void *Addr, size_t len) {
#if (defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)) && \
defined(__APPLE__)
sys_icache_invalidate(Addr, len);
#endif
}
void *PPCJITInfo::emitFunctionStub(void *Fn, MachineCodeEmitter &MCE) {
// If this is just a call to an external function, emit a branch instead of a
// call. The code is the same except for one bit of the last instruction.
@@ -339,10 +353,12 @@ void *PPCJITInfo::emitFunctionStub(void *Fn, MachineCodeEmitter &MCE) {
MCE.emitWordBE(0);
MCE.emitWordBE(0);
EmitBranchToAt(Addr, (intptr_t)Fn, false, is64Bit);
SyncICache((void*)Addr, 7*4);
return MCE.finishFunctionStub(0);
}
MCE.startFunctionStub(10*4);
intptr_t Addr = (intptr_t)MCE.getCurrentPCValue();
if (is64Bit) {
MCE.emitWordBE(0xf821ffb1); // stdu r1,-80(r1)
MCE.emitWordBE(0x7d6802a6); // mflr r11
@@ -356,7 +372,7 @@ void *PPCJITInfo::emitFunctionStub(void *Fn, MachineCodeEmitter &MCE) {
MCE.emitWordBE(0x7d6802a6); // mflr r11
MCE.emitWordBE(0x91610024); // stw r11, 36(r1)
}
intptr_t Addr = (intptr_t)MCE.getCurrentPCValue();
intptr_t BranchAddr = (intptr_t)MCE.getCurrentPCValue();
MCE.emitWordBE(0);
MCE.emitWordBE(0);
MCE.emitWordBE(0);
@@ -364,7 +380,8 @@ void *PPCJITInfo::emitFunctionStub(void *Fn, MachineCodeEmitter &MCE) {
MCE.emitWordBE(0);
MCE.emitWordBE(0);
MCE.emitWordBE(0);
EmitBranchToAt(Addr, (intptr_t)Fn, true, is64Bit);
EmitBranchToAt(BranchAddr, (intptr_t)Fn, true, is64Bit);
SyncICache((void*)Addr, 10*4);
return MCE.finishFunctionStub(0);
}