Module: wine Branch: master Commit: f2fa8ca29b4f3894daaafc7cf47260bc56ae5cb3 URL: https://gitlab.winehq.org/wine/wine/-/commit/f2fa8ca29b4f3894daaafc7cf47260b...
Author: Alexandre Julliard julliard@winehq.org Date: Sat Nov 25 11:38:55 2023 +0100
ntdll: Store the syscall table in the TEB on x86-64.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55935
---
dlls/ntdll/unix/signal_x86_64.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/dlls/ntdll/unix/signal_x86_64.c b/dlls/ntdll/unix/signal_x86_64.c index 851655a0b5a..17a558da74c 100644 --- a/dlls/ntdll/unix/signal_x86_64.c +++ b/dlls/ntdll/unix/signal_x86_64.c @@ -420,13 +420,15 @@ struct amd64_thread_data DWORD_PTR dr7; /* 0318 */ void *pthread_teb; /* 0320 thread data for pthread */ struct syscall_frame *syscall_frame; /* 0328 syscall frame pointer */ - DWORD fs; /* 0330 WOW TEB selector */ + SYSTEM_SERVICE_TABLE *syscall_table; /* 0330 syscall table */ + DWORD fs; /* 0338 WOW TEB selector */ };
C_ASSERT( sizeof(struct amd64_thread_data) <= sizeof(((struct ntdll_thread_data *)0)->cpu_data) ); C_ASSERT( offsetof( TEB, GdiTebBatch ) + offsetof( struct amd64_thread_data, pthread_teb ) == 0x320 ); C_ASSERT( offsetof( TEB, GdiTebBatch ) + offsetof( struct amd64_thread_data, syscall_frame ) == 0x328 ); -C_ASSERT( offsetof( TEB, GdiTebBatch ) + offsetof( struct amd64_thread_data, fs ) == 0x330 ); +C_ASSERT( offsetof( TEB, GdiTebBatch ) + offsetof( struct amd64_thread_data, syscall_table ) == 0x330 ); +C_ASSERT( offsetof( TEB, GdiTebBatch ) + offsetof( struct amd64_thread_data, fs ) == 0x338 );
static inline struct amd64_thread_data *amd64_thread_data(void) { @@ -1585,7 +1587,7 @@ __ASM_GLOBAL_FUNC( call_user_mode_callback, #ifdef __linux__ "testl $12,%r14d\n\t" /* SYSCALL_HAVE_PTHREAD_TEB | SYSCALL_HAVE_WRFSGSBASE */ "jz 1f\n\t" - "movw 0x330(%r11),%fs\n" /* amd64_thread_data()->fs */ + "movw 0x338(%r11),%fs\n" /* amd64_thread_data()->fs */ "1:\n\t" #endif "movq %rdi,%rcx\n\t" /* id */ @@ -2463,9 +2465,11 @@ void call_init_thunk( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB CONTEXT *ctx, context = { 0 }; I386_CONTEXT *wow_context;
+ thread_data->syscall_table = KeServiceDescriptorTable; + #if defined __linux__ arch_prctl( ARCH_SET_GS, teb ); - arch_prctl( ARCH_GET_FS, &amd64_thread_data()->pthread_teb ); + arch_prctl( ARCH_GET_FS, &thread_data->pthread_teb ); if (fs32_sel) alloc_fs_sel( fs32_sel >> 3, get_wow_teb( teb )); #elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__) amd64_set_gsbase( teb ); @@ -2474,11 +2478,11 @@ void call_init_thunk( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB #elif defined (__APPLE__) __asm__ volatile (".byte 0x65\n\tmovq %0,%c1" :: "r" (teb->Tib.Self), "n" (FIELD_OFFSET(TEB, Tib.Self))); __asm__ volatile (".byte 0x65\n\tmovq %0,%c1" :: "r" (teb->ThreadLocalStoragePointer), "n" (FIELD_OFFSET(TEB, ThreadLocalStoragePointer))); - amd64_thread_data()->pthread_teb = mac_thread_gsbase(); + thread_data->pthread_teb = mac_thread_gsbase(); /* alloc_tls_slot() needs to poke a value to an address relative to each thread's gsbase. Have each thread record its gsbase pointer into its TEB so alloc_tls_slot() can find it. */ - teb->Instrumentation[0] = amd64_thread_data()->pthread_teb; + teb->Instrumentation[0] = thread_data->pthread_teb; #else # error Please define setting %gs for your architecture #endif @@ -2685,7 +2689,12 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher, "movl %eax,%ebx\n\t" "shrl $8,%ebx\n\t" "andl $0x30,%ebx\n\t" /* syscall table number */ - "leaq " __ASM_NAME("KeServiceDescriptorTable") "(%rip),%rcx\n\t" +#ifdef __APPLE__ + "movq %gs:0x30,%rcx\n\t" + "movq 0x330(%rcx),%rcx\n\t" +#else + "movq %gs:0x330,%rcx\n\t" /* amd64_thread_data()->syscall_table */ +#endif "leaq (%rcx,%rbx,2),%rbx\n\t" "andl $0xfff,%eax\n\t" /* syscall number */ "cmpq 16(%rbx),%rax\n\t" /* table->ServiceLimit */ @@ -2714,7 +2723,7 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher, #ifdef __linux__ "testl $12,%r14d\n\t" /* SYSCALL_HAVE_PTHREAD_TEB | SYSCALL_HAVE_WRFSGSBASE */ "jz 1f\n\t" - "movw %gs:0x330,%fs\n" /* amd64_thread_data()->fs */ + "movw %gs:0x338,%fs\n" /* amd64_thread_data()->fs */ "1:\n\t" #endif "testl $0x48,%edx\n\t" /* CONTEXT_FLOATING_POINT | CONTEXT_XSTATE */ @@ -2899,7 +2908,7 @@ __ASM_GLOBAL_FUNC( __wine_unix_call_dispatcher, #ifdef __linux__ "testl $12,%r14d\n\t" /* SYSCALL_HAVE_PTHREAD_TEB | SYSCALL_HAVE_WRFSGSBASE */ "jz 1f\n\t" - "movw %gs:0x330,%fs\n" /* amd64_thread_data()->fs */ + "movw %gs:0x338,%fs\n" /* amd64_thread_data()->fs */ "1:\n\t" #endif "movq 0x60(%rcx),%r14\n\t"
-
Alexandre Julliard