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Commit f6b45674 authored by Alexandre Julliard's avatar Alexandre Julliard
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ntdll: Get rid of the thread exit frame on x86-64.

parent a50df817
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Showing with 11 additions and 29 deletions
dlls/ntdll/unix/signal_x86_64.c
View file @ f6b45674
......@@ -418,16 +418,15 @@ struct amd64_thread_data
DWORD_PTR dr3; /* 0308 */
DWORD_PTR dr6; /* 0310 */
DWORD_PTR dr7; /* 0318 */
void *exit_frame; /* 0320 exit frame pointer */
void *pthread_teb; /* 0320 thread data for pthread */
struct syscall_frame *syscall_frame; /* 0328 syscall frame pointer */
void *pthread_teb; /* 0330 thread data for pthread */
DWORD fs; /* 0338 WOW TEB selector */
DWORD fs; /* 0330 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, exit_frame ) == 0x320 );
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, pthread_teb ) == 0x330 );
C_ASSERT( offsetof( TEB, GdiTebBatch ) + offsetof( struct amd64_thread_data, fs ) == 0x330 );
static inline struct amd64_thread_data *amd64_thread_data(void)
{
......@@ -1586,7 +1585,7 @@ __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 0x338(%r11),%fs\n" /* amd64_thread_data()->fs */
"movw 0x330(%r11),%fs\n" /* amd64_thread_data()->fs */
"1:\n\t"
#endif
"movq %rdi,%rcx\n\t" /* id */
......@@ -2561,8 +2560,6 @@ __ASM_GLOBAL_FUNC( signal_start_thread,
"movq %r15,-0x28(%rbp)\n\t"
__ASM_CFI(".cfi_rel_offset %r15,-0x28\n\t")
"leaq 0x10(%rbp),%r9\n\t" /* syscall_cfa */
/* store exit frame */
"movq %rsp,0x320(%rcx)\n\t" /* amd64_thread_data()->exit_frame */
/* set syscall frame */
"movq 0x328(%rcx),%r8\n\t" /* amd64_thread_data()->syscall_frame */
"orq %r8,%r8\n\t"
......@@ -2578,23 +2575,8 @@ __ASM_GLOBAL_FUNC( signal_start_thread,
/***********************************************************************
* signal_exit_thread
*/
__ASM_GLOBAL_FUNC( signal_exit_thread,
/* fetch exit frame */
"xorl %ecx,%ecx\n\t"
"xchgq %rcx,0x320(%rdx)\n\t" /* amd64_thread_data()->exit_frame */
"testq %rcx,%rcx\n\t"
"jnz 1f\n\t"
"jmp *%rsi\n"
/* switch to exit frame stack */
"1:\tmovq %rcx,%rsp\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset 56\n\t")
__ASM_CFI(".cfi_rel_offset %rbp,48\n\t")
__ASM_CFI(".cfi_rel_offset %rbx,40\n\t")
__ASM_CFI(".cfi_rel_offset %r12,32\n\t")
__ASM_CFI(".cfi_rel_offset %r13,24\n\t")
__ASM_CFI(".cfi_rel_offset %r14,16\n\t")
__ASM_CFI(".cfi_rel_offset %r15,8\n\t")
"call *%rsi" )
__ASM_GLOBAL_FUNC( signal_exit_thread, "jmp *%rsi" )
/***********************************************************************
* __wine_syscall_dispatcher
......@@ -2677,7 +2659,7 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher,
#ifdef __linux__
"testl $12,%r14d\n\t" /* SYSCALL_HAVE_PTHREAD_TEB | SYSCALL_HAVE_WRFSGSBASE */
"jz 2f\n\t"
"movq %gs:0x330,%rsi\n\t" /* amd64_thread_data()->pthread_teb */
"movq %gs:0x320,%rsi\n\t" /* amd64_thread_data()->pthread_teb */
"testl $8,%r14d\n\t" /* SYSCALL_HAVE_WRFSGSBASE */
"jz 1f\n\t"
"wrfsbase %rsi\n\t"
......@@ -2738,7 +2720,7 @@ __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:0x338,%fs\n" /* amd64_thread_data()->fs */
"movw %gs:0x330,%fs\n" /* amd64_thread_data()->fs */
"1:\n\t"
#endif
"testl $0x48,%edx\n\t" /* CONTEXT_FLOATING_POINT | CONTEXT_XSTATE */
......@@ -2880,7 +2862,7 @@ __ASM_GLOBAL_FUNC( __wine_unix_call_dispatcher,
#ifdef __linux__
"testl $12,%r14d\n\t" /* SYSCALL_HAVE_PTHREAD_TEB | SYSCALL_HAVE_WRFSGSBASE */
"jz 2f\n\t"
"movq %gs:0x330,%rsi\n\t" /* amd64_thread_data()->pthread_teb */
"movq %gs:0x320,%rsi\n\t" /* amd64_thread_data()->pthread_teb */
"testl $8,%r14d\n\t" /* SYSCALL_HAVE_WRFSGSBASE */
"jz 1f\n\t"
"wrfsbase %rsi\n\t"
......@@ -2923,7 +2905,7 @@ __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:0x338,%fs\n" /* amd64_thread_data()->fs */
"movw %gs:0x330,%fs\n" /* amd64_thread_data()->fs */
"1:\n\t"
#endif
"movq 0x60(%rcx),%r14\n\t"
......
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