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Allows for stack base to change

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This commit is contained in:
Brian Fiete 2020-05-16 10:07:17 -07:00
parent 2510c16389
commit 4472449cc4
6 changed files with 135 additions and 66 deletions
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76
BeefySysLib/platform/posix/PosixCommon.cpp
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@ -1166,6 +1166,7 @@ struct BfpThreadInfo
{
intptr mStackBase;
int mStackLimit;
pthread_t mPThread;
};
static __thread BfpThread* gCurrentThread;
@ -1338,32 +1339,6 @@ BFP_EXPORT void BFP_CALLTYPE BfpThread_GetIntRegisters(BfpThread* thread, intptr
NOT_IMPL;
}
BFP_EXPORT void BFP_CALLTYPE BfpThread_GetStackInfo(BfpThread* thread, intptr* outStackBase, int* outStackLimit, BfpThreadResult* outResult)
{
#ifdef BFP_HAS_PTHREAD_GETATTR_NP
if (gCurrentThreadInfo.mStackBase == 0)
{
void* stackBase = 0;
size_t stackLimit = 0;
pthread_attr_t attr;
pthread_getattr_np(pthread_self(), &attr);
pthread_attr_getstack(&attr, &stackBase, &stackLimit);
gCurrentThreadInfo.mStackBase = (intptr)stackBase + stackLimit;
gCurrentThreadInfo.mStackLimit = (int)stackLimit;
pthread_attr_destroy(&attr);
}
*outStackBase = gCurrentThreadInfo.mStackBase;
*outStackLimit = gCurrentThreadInfo.mStackLimit;
OUTRESULT(BfpThreadResult_Ok);
#else
OUTRESULT(BfpThreadResult_UnknownError);
#endif
}
BFP_EXPORT void BFP_CALLTYPE BfpThread_Sleep(int sleepMS)
{
usleep(sleepMS * 1000);
@ -1374,6 +1349,55 @@ BFP_EXPORT bool BFP_CALLTYPE BfpThread_Yield()
return sched_yield() == 0;
}
///
BFP_EXPORT BfpThreadInfo* BFP_CALLTYPE BfpThreadInfo_Create()
{
BfpThreadInfo* threadInfo = new BfpThreadInfo();
threadInfo->mStackBase = 0;
threadInfo->mStackLimit = 0;
threadInfo->mPThread = pthread_self();
}
BFP_EXPORT void BFP_CALLTYPE BfpThreadInfo_Release(BfpThreadInfo* threadInfo)
{
delete threadInfo;
}
BFP_EXPORT void BFP_CALLTYPE BfpThreadInfo_GetStackInfo(BfpThreadInfo* threadInfo, intptr* outStackBase, int* outStackLimit, BfpThreadResult* outResult)
{
#ifdef BFP_HAS_PTHREAD_GETATTR_NP
if (threadInfo == NULL)
{
threadInfo = &gCurrentThreadInfo;
threadInfo->mPThread = pthread_self();
}
if (threadInfo->mStackBase == 0)
{
void* stackBase = 0;
size_t stackLimit = 0;
pthread_attr_t attr;
pthread_getattr_np(threadInfo->mPThread, &attr);
pthread_attr_getstack(&attr, &stackBase, &stackLimit);
threadInfo->mStackBase = (intptr)stackBase + stackLimit;
threadInfo->mStackLimit = (int)stackLimit;
pthread_attr_destroy(&attr);
}
*outStackBase = threadInfo->mStackBase;
*outStackLimit = threadInfo->mStackLimit;
OUTRESULT(BfpThreadResult_Ok);
#else
OUTRESULT(BfpThreadResult_UnknownError);
#endif
}
///
struct BfpCritSect
{
pthread_mutex_t mPMutex;