[llvm-commits] [llvm] r44818 - /llvm/trunk/lib/Target/X86/X86JITInfo.cpp
Anton Korobeynikov
asl at math.spbu.ru
Mon Dec 10 15:04:38 PST 2007
Author: asl
Date: Mon Dec 10 17:04:38 2007
New Revision: 44818
URL: http://llvm.org/viewvc/llvm-project?rev=44818&view=rev
Log:
Provide convenient way to disable CFI stuff for old/broken assemblers.
Use it for Darwin.
Modified:
llvm/trunk/lib/Target/X86/X86JITInfo.cpp
Modified: llvm/trunk/lib/Target/X86/X86JITInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86JITInfo.cpp?rev=44818&r1=44817&r2=44818&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86JITInfo.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86JITInfo.cpp Mon Dec 10 17:04:38 2007
@@ -47,6 +47,12 @@
#define GETASMPREFIX(X) GETASMPREFIX2(X)
#define ASMPREFIX GETASMPREFIX(__USER_LABEL_PREFIX__)
+#if defined(__APPLE__)
+# define CFI(x)
+#else
+# define CFI(x) x
+#endif
+
// Provide a wrapper for X86CompilationCallback2 that saves non-traditional
// callee saved registers, for the fastcc calling convention.
extern "C" {
@@ -58,27 +64,27 @@
".align 8\n"
".globl " ASMPREFIX "X86CompilationCallback\n"
ASMPREFIX "X86CompilationCallback:\n"
-// ".cfi_startproc\n"
+ CFI(".cfi_startproc\n")
// Save RBP
"pushq %rbp\n"
-// ".cfi_def_cfa_offset 16\n"
-// ".cfi_offset %rbp, -16\n"
+ CFI(".cfi_def_cfa_offset 16\n")
+ CFI(".cfi_offset %rbp, -16\n")
// Save RSP
"movq %rsp, %rbp\n"
-// ".cfi_def_cfa_register %rbp\n"
+ CFI(".cfi_def_cfa_register %rbp\n")
// Save all int arg registers
"pushq %rdi\n"
-// ".cfi_rel_offset %rdi, 0\n"
+ CFI(".cfi_rel_offset %rdi, 0\n")
"pushq %rsi\n"
-// ".cfi_rel_offset %rsi, 8\n"
+ CFI(".cfi_rel_offset %rsi, 8\n")
"pushq %rdx\n"
-// ".cfi_rel_offset %rdx, 16\n"
+ CFI(".cfi_rel_offset %rdx, 16\n")
"pushq %rcx\n"
-// ".cfi_rel_offset %rcx, 24\n"
+ CFI(".cfi_rel_offset %rcx, 24\n")
"pushq %r8\n"
-// ".cfi_rel_offset %r8, 32\n"
+ CFI(".cfi_rel_offset %r8, 32\n")
"pushq %r9\n"
-// ".cfi_rel_offset %r9, 40\n"
+ CFI(".cfi_rel_offset %r9, 40\n")
// Align stack on 16-byte boundary. ESP might not be properly aligned
// (8 byte) if this is called from an indirect stub.
"andq $-16, %rsp\n"
@@ -107,35 +113,35 @@
"movaps (%rsp), %xmm0\n"
// Restore RSP
"movq %rbp, %rsp\n"
-// ".cfi_def_cfa_register esp\n"
+ CFI(".cfi_def_cfa_register esp\n")
// Restore all int arg registers
"subq $48, %rsp\n"
-// ".cfi_adjust_cfa_offset 48\n"
+ CFI(".cfi_adjust_cfa_offset 48\n")
"popq %r9\n"
-// ".cfi_adjust_cfa_offset -8\n"
-// ".cfi_restore %r9\n"
+ CFI(".cfi_adjust_cfa_offset -8\n")
+ CFI(".cfi_restore %r9\n")
"popq %r8\n"
-// ".cfi_adjust_cfa_offset -8\n"
-// ".cfi_restore %r8\n"
+ CFI(".cfi_adjust_cfa_offset -8\n")
+ CFI(".cfi_restore %r8\n")
"popq %rcx\n"
-// ".cfi_adjust_cfa_offset -8\n"
-// ".cfi_restore %rcx\n"
+ CFI(".cfi_adjust_cfa_offset -8\n")
+ CFI(".cfi_restore %rcx\n")
"popq %rdx\n"
-// ".cfi_adjust_cfa_offset -8\n"
-// ".cfi_restore %rdx\n"
+ CFI(".cfi_adjust_cfa_offset -8\n")
+ CFI(".cfi_restore %rdx\n")
"popq %rsi\n"
-// ".cfi_adjust_cfa_offset -8\n"
-// ".cfi_restore %rsi\n"
+ CFI(".cfi_adjust_cfa_offset -8\n")
+ CFI(".cfi_restore %rsi\n")
"popq %rdi\n"
-// ".cfi_adjust_cfa_offset -8\n"
-// ".cfi_restore %rdi\n"
+ CFI(".cfi_adjust_cfa_offset -8\n")
+ CFI(".cfi_restore %rdi\n")
// Restore RBP
"popq %rbp\n"
-// ".cfi_adjust_cfa_offset -8\n"
-// ".cfi_restore %rbp\n"
+ CFI(".cfi_adjust_cfa_offset -8\n")
+ CFI(".cfi_restore %rbp\n")
"ret\n"
-// ".cfi_endproc\n"
- );
+ CFI(".cfi_endproc\n")
+ );
#elif defined(__i386__) || defined(i386) || defined(_M_IX86)
#ifndef _MSC_VER
void X86CompilationCallback(void);
@@ -144,18 +150,18 @@
".align 8\n"
".globl " ASMPREFIX "X86CompilationCallback\n"
ASMPREFIX "X86CompilationCallback:\n"
-// ".cfi_startproc\n"
+ CFI(".cfi_startproc\n")
"pushl %ebp\n"
-// ".cfi_def_cfa_offset 8\n"
-// ".cfi_offset %ebp, -8\n"
+ CFI(".cfi_def_cfa_offset 8\n")
+ CFI(".cfi_offset %ebp, -8\n")
"movl %esp, %ebp\n" // Standard prologue
-// ".cfi_def_cfa_register %ebp\n"
+ CFI(".cfi_def_cfa_register %ebp\n")
"pushl %eax\n"
-// ".cfi_rel_offset %eax, 0\n"
+ CFI(".cfi_rel_offset %eax, 0\n")
"pushl %edx\n" // Save EAX/EDX/ECX
-// ".cfi_rel_offset %edx, 4\n"
+ CFI(".cfi_rel_offset %edx, 4\n")
"pushl %ecx\n"
-// ".cfi_rel_offset %ecx, 8\n"
+ CFI(".cfi_rel_offset %ecx, 8\n")
#if defined(__APPLE__)
"andl $-16, %esp\n" // Align ESP on 16-byte boundary
#endif
@@ -165,24 +171,24 @@
"movl %ebp, (%esp)\n"
"call " ASMPREFIX "X86CompilationCallback2\n"
"movl %ebp, %esp\n" // Restore ESP
-// ".cfi_def_cfa_register %esp\n"
+ CFI(".cfi_def_cfa_register %esp\n")
"subl $12, %esp\n"
-// ".cfi_adjust_cfa_offset 12\n"
+ CFI(".cfi_adjust_cfa_offset 12\n")
"popl %ecx\n"
-// ".cfi_adjust_cfa_offset -4\n"
-// ".cfi_restore %ecx\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %ecx\n")
"popl %edx\n"
-// ".cfi_adjust_cfa_offset -4\n"
-// ".cfi_restore %edx\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %edx\n")
"popl %eax\n"
-// ".cfi_adjust_cfa_offset -4\n"
-// ".cfi_restore %eax\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %eax\n")
"popl %ebp\n"
-// ".cfi_adjust_cfa_offset -4\n"
-// ".cfi_restore %ebp\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %ebp\n")
"ret\n"
-// ".cfi_endproc\n"
- );
+ CFI(".cfi_endproc\n")
+ );
// Same as X86CompilationCallback but also saves XMM argument registers.
void X86CompilationCallback_SSE(void);
@@ -191,18 +197,18 @@
".align 8\n"
".globl " ASMPREFIX "X86CompilationCallback_SSE\n"
ASMPREFIX "X86CompilationCallback_SSE:\n"
-// ".cfi_startproc\n"
+ CFI(".cfi_startproc\n")
"pushl %ebp\n"
-// ".cfi_def_cfa_offset 8\n"
-// ".cfi_offset %ebp, -8\n"
+ CFI(".cfi_def_cfa_offset 8\n")
+ CFI(".cfi_offset %ebp, -8\n")
"movl %esp, %ebp\n" // Standard prologue
-// ".cfi_def_cfa_register %ebp\n"
+ CFI(".cfi_def_cfa_register %ebp\n")
"pushl %eax\n"
-// ".cfi_rel_offset %eax, 0\n"
+ CFI(".cfi_rel_offset %eax, 0\n")
"pushl %edx\n" // Save EAX/EDX/ECX
-// ".cfi_rel_offset %edx, 4\n"
+ CFI(".cfi_rel_offset %edx, 4\n")
"pushl %ecx\n"
-// ".cfi_rel_offset %ecx, 8\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"
@@ -220,32 +226,32 @@
"call " ASMPREFIX "X86CompilationCallback2\n"
"addl $16, %esp\n"
"movaps 48(%esp), %xmm3\n"
-// ".cfi_restore %xmm3\n"
+ CFI(".cfi_restore %xmm3\n")
"movaps 32(%esp), %xmm2\n"
-// ".cfi_restore %xmm2\n"
+ CFI(".cfi_restore %xmm2\n")
"movaps 16(%esp), %xmm1\n"
-// ".cfi_restore %xmm1\n"
+ CFI(".cfi_restore %xmm1\n")
"movaps (%esp), %xmm0\n"
-// ".cfi_restore %xmm0\n"
+ CFI(".cfi_restore %xmm0\n")
"movl %ebp, %esp\n" // Restore ESP
-// ".cfi_def_cfa_register esp\n"
+ CFI(".cfi_def_cfa_register esp\n")
"subl $12, %esp\n"
-// ".cfi_adjust_cfa_offset 12\n"
+ CFI(".cfi_adjust_cfa_offset 12\n")
"popl %ecx\n"
-// ".cfi_adjust_cfa_offset -4\n"
-// ".cfi_restore %ecx\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %ecx\n")
"popl %edx\n"
-// ".cfi_adjust_cfa_offset -4\n"
-// ".cfi_restore %edx\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %edx\n")
"popl %eax\n"
-// ".cfi_adjust_cfa_offset -4\n"
-// ".cfi_restore %eax\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %eax\n")
"popl %ebp\n"
-// ".cfi_adjust_cfa_offset -4\n"
-// ".cfi_restore %ebp\n"
+ CFI(".cfi_adjust_cfa_offset -4\n")
+ CFI(".cfi_restore %ebp\n")
"ret\n"
-// ".cfi_endproc\n"
- );
+ CFI(".cfi_endproc\n")
+ );
#else
void X86CompilationCallback2(void);
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