Skip to content

W
wine-winehq
Commit 578a730a authored by Rémi Bernon's avatar Rémi Bernon Committed by Alexandre Julliard
Browse files
Options

ntdll: Connect syscall frames across user callbacks on i386.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52213 Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54346
parent 0d329384
Hide whitespace changes
Inline Side-by-side
Showing with 41 additions and 33 deletions
dlls/ntdll/unix/signal_i386.c
View file @ 578a730a
......@@ -2612,6 +2612,13 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher,
"fwait\n"
/* switch to kernel stack */
"4:\tmovl %ecx,%esp\n\t"
/* we're now on the kernel stack, stitch unwind info with previous frame */
__ASM_CFI_CFA_IS_AT1(ebp, 0x04) /* frame->syscall_cfa */
__ASM_CFI(".cfi_offset %eip,-4\n\t")
__ASM_CFI(".cfi_offset %ebp,-8\n\t")
__ASM_CFI(".cfi_offset %ebx,-12\n\t")
__ASM_CFI(".cfi_offset %esi,-16\n\t")
__ASM_CFI(".cfi_offset %edi,-20\n\t")
"movl 0x1c(%esp),%edx\n\t" /* frame->eax */
"andl $0xfff,%edx\n\t" /* syscall number */
"cmpl 8(%ebx),%edx\n\t" /* table->ServiceLimit */
......@@ -2629,12 +2636,6 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher,
"leal -0x34(%ebp),%esp\n"
__ASM_LOCAL_LABEL("__wine_syscall_dispatcher_return") ":\t"
__ASM_CFI_CFA_IS_AT1(esp, 0x0c)
__ASM_CFI_REG_IS_AT1(eip, esp, 0x08)
__ASM_CFI_REG_IS_AT1(ebx, esp, 0x20)
__ASM_CFI_REG_IS_AT1(edi, esp, 0x2c)
__ASM_CFI_REG_IS_AT1(esi, esp, 0x30)
__ASM_CFI_REG_IS_AT1(ebp, esp, 0x34)
"movl 0(%esp),%ecx\n\t" /* frame->syscall_flags + (frame->restore_flags << 16) */
"testl $0x68 << 16,%ecx\n\t" /* CONTEXT_FLOATING_POINT | CONTEXT_EXTENDED_REGISTERS | CONTEXT_XSAVE */
"jz 3f\n\t"
......@@ -2653,38 +2654,46 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher,
"2:\tfrstor 0x40(%esp)\n\t"
"fwait\n"
"3:\tmovl 0x2c(%esp),%edi\n\t"
__ASM_CFI(".cfi_remember_state\n\t")
__ASM_CFI(".cfi_same_value %edi\n\t")
"movl 0x30(%esp),%esi\n\t"
__ASM_CFI(".cfi_same_value %esi\n\t")
"movl 0x34(%esp),%ebp\n\t"
__ASM_CFI(".cfi_same_value %ebp\n\t")
/* push ebp-based kernel stack cfi */
__ASM_CFI("\t.cfi_remember_state\n")
__ASM_CFI_CFA_IS_AT2(esp, 0xb8, 0x00) /* frame->syscall_cfa */
"testl $0x7 << 16,%ecx\n\t" /* CONTEXT_CONTROL | CONTEXT_SEGMENTS | CONTEXT_INTEGER */
"jnz 1f\n\t"
"movl 0x20(%esp),%ebx\n\t"
__ASM_CFI(".cfi_remember_state\n\t")
__ASM_CFI(".cfi_same_value %ebx\n\t")
"movl 0x08(%esp),%ecx\n\t" /* frame->eip */
__ASM_CFI(".cfi_register %eip, %ecx\n\t")
/* push esp-based kernel stack cfi */
__ASM_CFI("\t.cfi_remember_state\n")
/* switch to user stack */
"movl 0x0c(%esp),%esp\n\t" /* frame->esp */
__ASM_CFI(".cfi_def_cfa %esp,0\n\t")
__ASM_CFI(".cfi_register %eip, %ecx\n\t")
__ASM_CFI(".cfi_same_value %ebp\n\t")
__ASM_CFI(".cfi_same_value %ebx\n\t")
__ASM_CFI(".cfi_same_value %esi\n\t")
__ASM_CFI(".cfi_same_value %edi\n\t")
"pushl %ecx\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"ret\n"
/* pop esp-based kernel stack cfi */
__ASM_CFI("\t.cfi_restore_state\n")
"1:\ttestl $0x2 << 16,%ecx\n\t" /* CONTEXT_INTEGER */
"jz 1f\n\t"
"movl 0x1c(%esp),%eax\n\t"
"movl 0x24(%esp),%ecx\n\t"
"movl 0x28(%esp),%edx\n"
"1:\tmovl 0x0c(%esp),%ebx\n\t" /* frame->esp */
__ASM_CFI(".cfi_register %esp, %ebx\n\t")
"movw 0x12(%esp),%ss\n\t"
/* switch to user stack */
"xchgl %ebx,%esp\n\t"
__ASM_CFI(".cfi_def_cfa %esp, 0\n\t")
__ASM_CFI_REG_IS_AT1(eip, ebx, 0x08)
__ASM_CFI_REG_IS_AT1(ebx, ebx, 0x20)
__ASM_CFI(".cfi_def_cfa %esp,0\n\t")
__ASM_CFI(".cfi_register %eip, %ecx\n\t")
__ASM_CFI(".cfi_same_value %ebp\n\t")
__ASM_CFI(".cfi_same_value %ebx\n\t")
__ASM_CFI(".cfi_same_value %esi\n\t")
__ASM_CFI(".cfi_same_value %edi\n\t")
"pushl 0x04(%ebx)\n\t" /* frame->eflags */
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"pushl 0x10(%ebx)\n\t" /* frame->cs */
......@@ -2702,23 +2711,16 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher,
"popl %ds\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset -4\n\t")
"iret\n"
/* pop ebp-based kernel stack cfi */
__ASM_CFI("\t.cfi_restore_state\n")
"6:\tmovl $0xc000000d,%eax\n\t" /* STATUS_INVALID_PARAMETER */
"jmp " __ASM_LOCAL_LABEL("__wine_syscall_dispatcher_return") "\n\t"
".globl " __ASM_NAME("__wine_syscall_dispatcher_return") "\n"
__ASM_NAME("__wine_syscall_dispatcher_return") ":\n\t"
__ASM_CFI(".cfi_remember_state\n\t")
__ASM_CFI(".cfi_def_cfa %esp, 4\n\t")
__ASM_CFI(".cfi_restore %esp\n\t")
__ASM_CFI(".cfi_restore %eip\n\t")
__ASM_CFI(".cfi_restore %ebx\n\t")
__ASM_CFI(".cfi_restore %edi\n\t")
__ASM_CFI(".cfi_restore %esi\n\t")
__ASM_CFI(".cfi_restore %ebp\n\t")
"movl 8(%esp),%eax\n\t"
"movl 4(%esp),%esp\n\t"
__ASM_CFI(".cfi_restore_state\n\t")
"jmp " __ASM_LOCAL_LABEL("__wine_syscall_dispatcher_return") )
......@@ -2756,20 +2758,26 @@ __ASM_GLOBAL_FUNC( __wine_unix_call_dispatcher,
"movl 8(%esp),%edx\n\t" /* code */
/* switch to kernel stack */
"leal -16(%ecx),%esp\n\t"
/* we're now on the kernel stack, stitch unwind info with previous frame */
__ASM_CFI_CFA_IS_AT2(esp, 0xc8, 0x00) /* frame->syscall_cfa */
__ASM_CFI(".cfi_offset %eip,-4\n\t")
__ASM_CFI(".cfi_offset %ebp,-8\n\t")
__ASM_CFI(".cfi_offset %ebx,-12\n\t")
__ASM_CFI(".cfi_offset %esi,-16\n\t")
__ASM_CFI(".cfi_offset %edi,-20\n\t")
"call *(%eax,%edx,4)\n\t"
"leal 16(%esp),%esp\n\t"
__ASM_CFI_CFA_IS_AT1(esp, 0x0c)
__ASM_CFI_REG_IS_AT1(eip, esp, 0x08)
__ASM_CFI_REG_IS_AT1(ebx, esp, 0x20)
__ASM_CFI_REG_IS_AT1(edi, esp, 0x2c)
__ASM_CFI_REG_IS_AT1(esi, esp, 0x30)
__ASM_CFI_REG_IS_AT1(ebp, esp, 0x34)
"testw $0xffff,2(%esp)\n\t" /* frame->restore_flags */
"jnz " __ASM_LOCAL_LABEL("__wine_syscall_dispatcher_return") "\n\t"
"movl 0x08(%esp),%ecx\n\t" /* frame->eip */
__ASM_CFI(".cfi_register %eip, %ecx\n\t")
/* switch to user stack */
"movl 0x0c(%esp),%esp\n\t" /* frame->esp */
__ASM_CFI(".cfi_def_cfa %esp,0\n\t")
__ASM_CFI(".cfi_register %eip, %ecx\n\t")
__ASM_CFI(".cfi_undefined %ebp\n\t")
__ASM_CFI(".cfi_undefined %ebx\n\t")
__ASM_CFI(".cfi_undefined %esi\n\t")
__ASM_CFI(".cfi_undefined %edi\n\t")
"pushl %ecx\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"ret" )
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment