Add some missing cfi frame info in x25519-x86_64.pl

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/10676)

diff --git a/crypto/ec/asm/x25519-x86_64.pl b/crypto/ec/asm/x25519-x86_64.pl
index 14583bd7475a5b9479f5dd3a544a42ea10c03192..c00a5bfd98583cfda47ba5f775b5943ef66f8d8b 100755 (executable)
--- a/crypto/ec/asm/x25519-x86_64.pl
+++ b/crypto/ec/asm/x25519-x86_64.pl
@@ -490,12 +490,14 @@ $code.=<<___;
 .type  x25519_fe64_eligible,\@abi-omnipotent
 .align 32
 x25519_fe64_eligible:
+.cfi_startproc
        mov     OPENSSL_ia32cap_P+8(%rip),%ecx
        xor     %eax,%eax
        and     \$0x80100,%ecx
        cmp     \$0x80100,%ecx
        cmove   %ecx,%eax
        ret
+.cfi_endproc
 .size  x25519_fe64_eligible,.-x25519_fe64_eligible
 
 .globl x25519_fe64_mul
@@ -724,6 +726,7 @@ x25519_fe64_sqr:
 .align 32
 x25519_fe64_mul121666:
 .Lfe64_mul121666_body:
+.cfi_startproc
        mov     \$121666,%edx
        mulx    8*0(%rsi),$acc0,%rcx
        mulx    8*1(%rsi),$acc1,%rax
@@ -752,6 +755,7 @@ x25519_fe64_mul121666:
 
 .Lfe64_mul121666_epilogue:
        ret
+.cfi_endproc
 .size  x25519_fe64_mul121666,.-x25519_fe64_mul121666
 
 .globl x25519_fe64_add
@@ -759,6 +763,7 @@ x25519_fe64_mul121666:
 .align 32
 x25519_fe64_add:
 .Lfe64_add_body:
+.cfi_startproc
        mov     8*0(%rsi),$acc0
        mov     8*1(%rsi),$acc1
        mov     8*2(%rsi),$acc2
@@ -787,6 +792,7 @@ x25519_fe64_add:
 
 .Lfe64_add_epilogue:
        ret
+.cfi_endproc
 .size  x25519_fe64_add,.-x25519_fe64_add
 
 .globl x25519_fe64_sub
@@ -794,6 +800,7 @@ x25519_fe64_add:
 .align 32
 x25519_fe64_sub:
 .Lfe64_sub_body:
+.cfi_startproc
        mov     8*0(%rsi),$acc0
        mov     8*1(%rsi),$acc1
        mov     8*2(%rsi),$acc2
@@ -822,6 +829,7 @@ x25519_fe64_sub:
 
 .Lfe64_sub_epilogue:
        ret
+.cfi_endproc
 .size  x25519_fe64_sub,.-x25519_fe64_sub
 
 .globl x25519_fe64_tobytes
@@ -829,6 +837,7 @@ x25519_fe64_sub:
 .align 32
 x25519_fe64_tobytes:
 .Lfe64_to_body:
+.cfi_startproc
        mov     8*0(%rsi),$acc0
        mov     8*1(%rsi),$acc1
        mov     8*2(%rsi),$acc2
@@ -864,6 +873,7 @@ x25519_fe64_tobytes:
 
 .Lfe64_to_epilogue:
        ret
+.cfi_endproc
 .size  x25519_fe64_tobytes,.-x25519_fe64_tobytes
 ___
 } else {
@@ -872,8 +882,10 @@ $code.=<<___;
 .type  x25519_fe64_eligible,\@abi-omnipotent
 .align 32
 x25519_fe64_eligible:
+.cfi_startproc
        xor     %eax,%eax
        ret
+.cfi_endproc
 .size  x25519_fe64_eligible,.-x25519_fe64_eligible
 
 .globl x25519_fe64_mul
@@ -889,8 +901,10 @@ x25519_fe64_mul121666:
 x25519_fe64_add:
 x25519_fe64_sub:
 x25519_fe64_tobytes:
+.cfi_startproc
        .byte   0x0f,0x0b       # ud2
        ret
+.cfi_endproc
 .size  x25519_fe64_mul,.-x25519_fe64_mul
 ___
 }