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ntdll: Move the TEB register to the ntdll_thread_regs structure.

This commit is contained in:
Alexandre Julliard 2006-01-20 16:18:06 +01:00
parent 53e634bec6
commit a19e3eeb20
3 changed files with 25 additions and 15 deletions
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6
dlls/ntdll/ntdll_misc.h
View File

@ -119,14 +119,13 @@ struct debug_info
struct ntdll_thread_data
{
DWORD teb_sel; /* selector to TEB */
struct debug_info *debug_info; /* info for debugstr functions */
int request_fd; /* fd for sending server requests */
int reply_fd; /* fd for receiving server replies */
int wait_fd[2]; /* fd for sleeping server requests */
void *vm86_ptr; /* data for vm86 mode */
void *pad[3]; /* change this if you add fields! */
void *pad[4]; /* change this if you add fields! */
};
static inline struct ntdll_thread_data *ntdll_get_thread_data(void)
@ -137,13 +136,14 @@ static inline struct ntdll_thread_data *ntdll_get_thread_data(void)
/* thread registers, stored in NtCurrentTeb()->SpareBytes1 */
struct ntdll_thread_regs
{
DWORD fs; /* TEB selector */
DWORD dr0; /* debug registers */
DWORD dr1;
DWORD dr2;
DWORD dr3;
DWORD dr6;
DWORD dr7;
DWORD spare[4]; /* change this if you add fields! */
DWORD spare[3]; /* change this if you add fields! */
};
static inline struct ntdll_thread_regs *ntdll_get_thread_regs(void)

4
dlls/ntdll/signal_i386.c
View File

@ -648,7 +648,7 @@ inline static void *init_handler( const SIGCONTEXT *sigcontext, WORD *fs, WORD *
{
void *stack = (void *)ESP_sig(sigcontext);
TEB *teb = get_current_teb();
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
/* get %fs and %gs at time of the fault */
#ifdef FS_sig
@ -662,7 +662,7 @@ inline static void *init_handler( const SIGCONTEXT *sigcontext, WORD *fs, WORD *
*gs = wine_get_gs();
#endif
wine_set_fs( thread_data->teb_sel );
wine_set_fs( thread_regs->fs );
/* now restore a proper %gs for the fault handler */
if (!wine_ldt_is_system(CS_sig(sigcontext)) ||

30
dlls/ntdll/thread.c
View File

@ -67,6 +67,7 @@ struct wine_pthread_functions pthread_functions = { NULL };
static inline NTSTATUS init_teb( TEB *teb )
{
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
teb->Tib.ExceptionList = (void *)~0UL;
teb->Tib.StackBase = (void *)~0UL;
@ -75,7 +76,7 @@ static inline NTSTATUS init_teb( TEB *teb )
teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer;
teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
if (!(thread_data->teb_sel = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
if (!(thread_regs->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
thread_data->request_fd = -1;
thread_data->reply_fd = -1;
thread_data->wait_fd[0] = -1;
@ -92,10 +93,10 @@ static inline void free_teb( TEB *teb )
{
SIZE_T size = 0;
void *addr = teb;
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
wine_ldt_free_fs( thread_data->teb_sel );
wine_ldt_free_fs( thread_regs->fs );
munmap( teb, sigstack_total_size );
}
@ -113,6 +114,7 @@ void thread_init(void)
void *addr;
SIZE_T info_size;
struct ntdll_thread_data *thread_data;
struct ntdll_thread_regs *thread_regs;
struct wine_pthread_thread_info thread_info;
static struct debug_info debug_info; /* debug info for initial thread */
@ -138,13 +140,14 @@ void thread_init(void)
teb = addr;
init_teb( teb );
thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
thread_data->debug_info = &debug_info;
InsertHeadList( &tls_links, &teb->TlsLinks );
thread_info.stack_base = NULL;
thread_info.stack_size = 0;
thread_info.teb_base = teb;
thread_info.teb_sel = thread_data->teb_sel;
thread_info.teb_sel = thread_regs->fs;
wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) );
pthread_functions.init_current_teb( &thread_info );
pthread_functions.init_thread( &thread_info );
@ -243,7 +246,8 @@ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *
PRTL_THREAD_START_ROUTINE start, void *param,
HANDLE *handle_ptr, CLIENT_ID *id )
{
struct ntdll_thread_data *thread_data = NULL;
struct ntdll_thread_data *thread_data;
struct ntdll_thread_regs *thread_regs = NULL;
struct startup_info *info = NULL;
void *addr;
HANDLE handle = 0;
@ -294,14 +298,20 @@ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *
teb->ClientId.UniqueProcess = (HANDLE)GetCurrentProcessId();
teb->ClientId.UniqueThread = (HANDLE)tid;
/* inherit registers from parent thread */
memcpy( teb->SpareBytes1, ntdll_get_thread_regs(), sizeof(teb->SpareBytes1) );
thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
thread_data->request_fd = request_pipe[1];
info->pthread_info.teb_base = teb;
info->pthread_info.teb_sel = thread_data->teb_sel;
info->pthread_info.teb_sel = thread_regs->fs;
/* inherit debug registers from parent thread */
thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
if (!stack_reserve || !stack_commit)
{
@ -333,7 +343,7 @@ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *
return STATUS_SUCCESS;
error:
if (thread_data) wine_ldt_free_fs( thread_data->teb_sel );
if (thread_regs) wine_ldt_free_fs( thread_regs->fs );
if (addr)
{
SIZE_T size = 0;