[reactos] 01/01: [CRT] Add CFI annotatiions to memmove function

[Jérôme Gardou]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=0c34c067c461d00c290e7…

commit 0c34c067c461d00c290e76e8066b226e47eeec43
Author:     Jérôme Gardou <jerome.gardou(a)reactos.org>
AuthorDate: Tue Mar 9 19:41:15 2021 +0100
Commit:     Jérôme Gardou <jerome.gardou(a)reactos.org>
CommitDate: Tue Mar 9 19:42:49 2021 +0100

    [CRT] Add CFI annotatiions to memmove function
---
 sdk/lib/crt/mem/i386/memmove_asm.s | 41 ++++++++++++++++++++++++++------------
 1 file changed, 28 insertions(+), 13 deletions(-)

diff --git a/sdk/lib/crt/mem/i386/memmove_asm.s b/sdk/lib/crt/mem/i386/memmove_asm.s
index 299b2cc8d38..35b0ee37566 100644
--- a/sdk/lib/crt/mem/i386/memmove_asm.s
+++ b/sdk/lib/crt/mem/i386/memmove_asm.s
@@ -14,15 +14,20 @@ _memcpy:
 FUNC _memmove
 	FPO 0, 3, 5, 2, 1, FRAME_NONFPO
 	push ebp
+	CFI_ADJUST_CFA_OFFSET 4
+	CFI_REL_OFFSET ebp, 0
 	mov ebp, esp
-	
+	CFI_DEF_CFA_REGISTER ebp
+
 	push esi
+	CFI_REL_OFFSET esi, -4
 	push edi
-	
+	CFI_REL_OFFSET edi, -8
+
 	mov	edi, [ebp + 8]
 	mov	esi, [ebp + 12]
 	mov	ecx, [ebp + 16]
-	
+
 	cmp	edi, esi
 	jbe	.CopyUp
 	mov	eax, ecx
@@ -30,9 +35,9 @@ FUNC _memmove
 	cmp	edi, eax
 	jb .CopyDown
 
-.CopyUp:	
+.CopyUp:
 	cld
-	
+
 	cmp	ecx, 16
 	jb .L1
 	mov edx, ecx
@@ -53,29 +58,34 @@ FUNC _memmove
 	rep movsd
 	mov ecx, edx
 	and ecx, 3
-.L1:	
+.L1:
 	test ecx, ecx
 	je .L3
 	rep movsb
 .L3:
 	mov eax, [ebp + 8]
 	pop edi
+	CFI_SAME_VALUE edi
 	pop esi
+	CFI_SAME_VALUE esi
 	leave
+	CFI_ADJUST_CFA_OFFSET -4
+	CFI_SAME_VALUE ebp
+	CFI_DEF_CFA_REGISTER esp
 	ret
 
 .CopyDown:
 	std
-        
+
 	add edi, ecx
 	add esi, ecx
-	
+
 	cmp ecx, 16
 	jb .L4
 	mov edx, ecx
 	test edi, 3
 	je .L5
-	
+
 /*
  * Make the destination dword aligned
  */
@@ -86,10 +96,10 @@ FUNC _memmove
 	dec edi
 	rep movsb
 	mov ecx, edx
-	
+
 	sub esi, 3
 	sub edi, 3
-.L6:	
+.L6:
 	shr ecx, 2
 	rep movsd
 	mov ecx, edx
@@ -97,14 +107,19 @@ FUNC _memmove
 	je .L7
 	add esi, 3
 	add edi, 3
-.L8:	
+.L8:
 	rep movsb
 .L7:
 	cld
 	mov eax, [ebp + 8]
 	pop edi
+	CFI_SAME_VALUE edi
 	pop esi
+	CFI_SAME_VALUE esi
 	leave
+	CFI_ADJUST_CFA_OFFSET -4
+	CFI_SAME_VALUE ebp
+	CFI_DEF_CFA_REGISTER esp
 	ret
 .L5:
 	sub edi, 4
@@ -113,7 +128,7 @@ FUNC _memmove
 
 .L4:
 	test ecx, ecx
-	je .L7	
+	je .L7
 	dec esi
 	dec edi
 	jmp .L8