+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %ebp\n")
+ "ret\n"
+ CFI(".cfi_endproc\n")
+ SIZE(X86CompilationCallback)
+ );
+
+ // Same as X86CompilationCallback but also saves XMM argument registers.
+ void X86CompilationCallback_SSE(void);
+ asm(
+ ".text\n"
+ ".align 8\n"
+ ".globl " ASMPREFIX "X86CompilationCallback_SSE\n"
+ TYPE_FUNCTION(X86CompilationCallback_SSE)
+ ASMPREFIX "X86CompilationCallback_SSE:\n"
+ CFI(".cfi_startproc\n")
+ "pushl %ebp\n"
+ CFI(".cfi_def_cfa_offset 8\n")
+ CFI(".cfi_offset %ebp, -8\n")
+ "movl %esp, %ebp\n" // Standard prologue
+ CFI(".cfi_def_cfa_register %ebp\n")
+ "pushl %eax\n"
+ CFI(".cfi_rel_offset %eax, 0\n")
+ "pushl %edx\n" // Save EAX/EDX/ECX
+ CFI(".cfi_rel_offset %edx, 4\n")
+ "pushl %ecx\n"
+ CFI(".cfi_rel_offset %ecx, 8\n")
+ "andl $-16, %esp\n" // Align ESP on 16-byte boundary
+ // Save all XMM arg registers
+ "subl $64, %esp\n"
+ // FIXME: provide frame move information for xmm registers.
+ // This can be tricky, because CFA register is ebp (unaligned)
+ // and we need to produce offsets relative to it.
+ "movaps %xmm0, (%esp)\n"
+ "movaps %xmm1, 16(%esp)\n"
+ "movaps %xmm2, 32(%esp)\n"
+ "movaps %xmm3, 48(%esp)\n"
+ "subl $16, %esp\n"
+ "movl 4(%ebp), %eax\n" // Pass prev frame and return address
+ "movl %eax, 4(%esp)\n"
+ "movl %ebp, (%esp)\n"
+ "call " ASMPREFIX "X86CompilationCallback2\n"
+ "addl $16, %esp\n"
+ "movaps 48(%esp), %xmm3\n"
+ CFI(".cfi_restore %xmm3\n")
+ "movaps 32(%esp), %xmm2\n"
+ CFI(".cfi_restore %xmm2\n")
+ "movaps 16(%esp), %xmm1\n"
+ CFI(".cfi_restore %xmm1\n")
+ "movaps (%esp), %xmm0\n"
+ CFI(".cfi_restore %xmm0\n")
+ "movl %ebp, %esp\n" // Restore ESP
+ CFI(".cfi_def_cfa_register esp\n")
+ "subl $12, %esp\n"
+ CFI(".cfi_adjust_cfa_offset 12\n")
+ "popl %ecx\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %ecx\n")
+ "popl %edx\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %edx\n")
+ "popl %eax\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %eax\n")
+ "popl %ebp\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %ebp\n")
+ "ret\n"
+ CFI(".cfi_endproc\n")
+ SIZE(X86CompilationCallback_SSE)
+ );
+# else
+ // the following function is called only from this translation unit,
+ // unless we are under 64bit Windows with MSC, where there is
+ // no support for inline assembly
+ static void X86CompilationCallback2(intptr_t *StackPtr, intptr_t RetAddr);