Add unwind information in huf_decompress_amd64.S

diff --git a/lib/decompress/huf_decompress_amd64.S b/lib/decompress/huf_decompress_amd64.S
index 656aada95b8e563d74636cfc4600347dcb9f199f..66e12d11bb131174b56d2958806b58dcbcbdc88a 100644 (file)
--- a/lib/decompress/huf_decompress_amd64.S
+++ b/lib/decompress/huf_decompress_amd64.S
@@ -117,22 +117,55 @@ ZSTD_HIDE_ASM_FUNCTION(_HUF_decompress4X1_usingDTable_internal_fast_asm_loop)
 _HUF_decompress4X1_usingDTable_internal_fast_asm_loop:
 HUF_decompress4X1_usingDTable_internal_fast_asm_loop:
     ZSTD_CET_ENDBRANCH
+    .cfi_startproc
+    .cfi_def_cfa_offset 8
+    .cfi_offset %rip, -8
     /* Save all registers - even if they are callee saved for simplicity. */
     push %rax
+    .cfi_def_cfa_offset 16
+    .cfi_offset rax, -16
     push %rbx
+    .cfi_def_cfa_offset 24
+    .cfi_offset rbx, -24
     push %rcx
+    .cfi_def_cfa_offset 32
+    .cfi_offset rcx, -32
     push %rdx
+    .cfi_def_cfa_offset 40
+    .cfi_offset rdx, -40
     push %rbp
+    .cfi_def_cfa_offset 48
+    .cfi_offset rbp, -48
     push %rsi
+    .cfi_def_cfa_offset 56
+    .cfi_offset rsi, -56
     push %rdi
+    .cfi_def_cfa_offset 64
+    .cfi_offset rdi, -64
     push %r8
+    .cfi_def_cfa_offset 72
+    .cfi_offset r8, -72
     push %r9
+    .cfi_def_cfa_offset 80
+    .cfi_offset r9, -80
     push %r10
+    .cfi_def_cfa_offset 88
+    .cfi_offset r10, -88
     push %r11
+    .cfi_def_cfa_offset 96
+    .cfi_offset r11, -96
     push %r12
+    .cfi_def_cfa_offset 104
+    .cfi_offset r12, -104
     push %r13
+    .cfi_def_cfa_offset 112
+    .cfi_offset r13, -112
     push %r14
+    .cfi_def_cfa_offset 120
+    .cfi_offset r14, -120
     push %r15
+    .cfi_def_cfa_offset 128
+    .cfi_offset r15, -128
 
     /* Read HUF_DecompressAsmArgs* args from %rax */
 #if defined(_WIN32)
@@ -154,11 +187,16 @@ HUF_decompress4X1_usingDTable_internal_fast_asm_loop:
     movq 88(%rax), %bits3
     movq 96(%rax), %dtable
     push %rax      /* argument */
+    .cfi_def_cfa_offset 136
     push 104(%rax) /* ilowest */
+    .cfi_def_cfa_offset 144
     push 112(%rax) /* oend */
+    .cfi_def_cfa_offset 152
     push %olimit   /* olimit space */
+    .cfi_def_cfa_offset 160
 
     subq $24, %rsp
+    .cfi_def_cfa_offset 184
 
 .L_4X1_compute_olimit:
     /* Computes how many iterations we can do safely
@@ -334,12 +372,17 @@ HUF_decompress4X1_usingDTable_internal_fast_asm_loop:
 #undef RELOAD_BITS
 .L_4X1_exit:
     addq $24, %rsp
+    .cfi_def_cfa_offset 160
 
     /* Restore stack (oend & olimit) */
     pop %rax /* olimit */
+    .cfi_def_cfa_offset 152
     pop %rax /* oend */
+    .cfi_def_cfa_offset 144
     pop %rax /* ilowest */
+    .cfi_def_cfa_offset 136
     pop %rax /* arg */
+    .cfi_def_cfa_offset 128
 
     /* Save ip / op / bits */
     movq %ip0,  0(%rax)
@@ -357,41 +400,105 @@ HUF_decompress4X1_usingDTable_internal_fast_asm_loop:
 
     /* Restore registers */
     pop %r15
+    .cfi_restore r15
+    .cfi_def_cfa_offset 120
     pop %r14
+    .cfi_restore r14
+    .cfi_def_cfa_offset 112
     pop %r13
+    .cfi_restore r13
+    .cfi_def_cfa_offset 104
     pop %r12
+    .cfi_restore r12
+    .cfi_def_cfa_offset 96
     pop %r11
+    .cfi_restore r11
+    .cfi_def_cfa_offset 88
     pop %r10
+    .cfi_restore r10
+    .cfi_def_cfa_offset 80
     pop %r9
+    .cfi_restore r9
+    .cfi_def_cfa_offset 72
     pop %r8
+    .cfi_restore r8
+    .cfi_def_cfa_offset 64
     pop %rdi
+    .cfi_restore rdi
+    .cfi_def_cfa_offset 56
     pop %rsi
+    .cfi_restore rsi
+    .cfi_def_cfa_offset 48
     pop %rbp
+    .cfi_restore rbp
+    .cfi_def_cfa_offset 40
     pop %rdx
+    .cfi_restore rdx
+    .cfi_def_cfa_offset 32
     pop %rcx
+    .cfi_restore rcx
+    .cfi_def_cfa_offset 24
     pop %rbx
+    .cfi_restore rbx
+    .cfi_def_cfa_offset 16
     pop %rax
+    .cfi_restore rax
+    .cfi_def_cfa_offset 8
     ret
+    .cfi_endproc
 
 _HUF_decompress4X2_usingDTable_internal_fast_asm_loop:
 HUF_decompress4X2_usingDTable_internal_fast_asm_loop:
     ZSTD_CET_ENDBRANCH
+    .cfi_startproc
+    .cfi_def_cfa_offset 8
+    .cfi_offset %rip, -8
     /* Save all registers - even if they are callee saved for simplicity. */
     push %rax
+    .cfi_def_cfa_offset 16
+    .cfi_offset rax, -16
     push %rbx
+    .cfi_def_cfa_offset 24
+    .cfi_offset rbx, -24
     push %rcx
+    .cfi_def_cfa_offset 32
+    .cfi_offset rcx, -32
     push %rdx
+    .cfi_def_cfa_offset 40
+    .cfi_offset rdx, -40
     push %rbp
+    .cfi_def_cfa_offset 48
+    .cfi_offset rbp, -48
     push %rsi
+    .cfi_def_cfa_offset 56
+    .cfi_offset rsi, -56
     push %rdi
+    .cfi_def_cfa_offset 64
+    .cfi_offset rdi, -64
     push %r8
+    .cfi_def_cfa_offset 72
+    .cfi_offset r8, -72
     push %r9
+    .cfi_def_cfa_offset 80
+    .cfi_offset r9, -80
     push %r10
+    .cfi_def_cfa_offset 88
+    .cfi_offset r10, -88
     push %r11
+    .cfi_def_cfa_offset 96
+    .cfi_offset r11, -96
     push %r12
+    .cfi_def_cfa_offset 104
+    .cfi_offset r12, -104
     push %r13
+    .cfi_def_cfa_offset 112
+    .cfi_offset r13, -112
     push %r14
+    .cfi_def_cfa_offset 120
+    .cfi_offset r14, -120
     push %r15
+    .cfi_def_cfa_offset 128
+    .cfi_offset r15, -128
 
     /* Read HUF_DecompressAsmArgs* args from %rax */
 #if defined(_WIN32)
@@ -413,23 +520,31 @@ HUF_decompress4X2_usingDTable_internal_fast_asm_loop:
     movq 88(%rax), %bits3
     movq 96(%rax), %dtable
     push %rax      /* argument */
+    .cfi_def_cfa_offset 136
     push %rax      /* olimit */
+    .cfi_def_cfa_offset 144
     push 104(%rax) /* ilowest */
+    .cfi_def_cfa_offset 152
 
     movq 112(%rax), %rax
     push %rax /* oend3 */
+    .cfi_def_cfa_offset 160
 
     movq %op3, %rax
     push %rax /* oend2 */
+    .cfi_def_cfa_offset 168
 
     movq %op2, %rax
     push %rax /* oend1 */
+    .cfi_def_cfa_offset 176
 
     movq %op1, %rax
     push %rax /* oend0 */
+    .cfi_def_cfa_offset 184
 
     /* Scratch space */
     subq $8, %rsp
+    .cfi_def_cfa_offset 192
 
 .L_4X2_compute_olimit:
     /* Computes how many iterations we can do safely
@@ -558,14 +673,22 @@ HUF_decompress4X2_usingDTable_internal_fast_asm_loop:
 #undef RELOAD_BITS
 .L_4X2_exit:
     addq $8, %rsp
+    .cfi_def_cfa_offset 184
     /* Restore stack (oend & olimit) */
     pop %rax /* oend0 */
+    .cfi_def_cfa_offset 176
     pop %rax /* oend1 */
+    .cfi_def_cfa_offset 168
     pop %rax /* oend2 */
+    .cfi_def_cfa_offset 160
     pop %rax /* oend3 */
+    .cfi_def_cfa_offset 152
     pop %rax /* ilowest */
+    .cfi_def_cfa_offset 144
     pop %rax /* olimit */
+    .cfi_def_cfa_offset 136
     pop %rax /* arg */
+    .cfi_def_cfa_offset 128
 
     /* Save ip / op / bits */
     movq %ip0,  0(%rax)
@@ -583,20 +706,51 @@ HUF_decompress4X2_usingDTable_internal_fast_asm_loop:
 
     /* Restore registers */
     pop %r15
+    .cfi_restore r15
+    .cfi_def_cfa_offset 120
     pop %r14
+    .cfi_restore r14
+    .cfi_def_cfa_offset 112
     pop %r13
+    .cfi_restore r13
+    .cfi_def_cfa_offset 104
     pop %r12
+    .cfi_restore r12
+    .cfi_def_cfa_offset 96
     pop %r11
+    .cfi_restore r11
+    .cfi_def_cfa_offset 88
     pop %r10
+    .cfi_restore r10
+    .cfi_def_cfa_offset 80
     pop %r9
+    .cfi_restore r9
+    .cfi_def_cfa_offset 72
     pop %r8
+    .cfi_restore r8
+    .cfi_def_cfa_offset 64
     pop %rdi
+    .cfi_restore rdi
+    .cfi_def_cfa_offset 56
     pop %rsi
+    .cfi_restore rsi
+    .cfi_def_cfa_offset 48
     pop %rbp
+    .cfi_restore rbp
+    .cfi_def_cfa_offset 40
     pop %rdx
+    .cfi_restore rdx
+    .cfi_def_cfa_offset 32
     pop %rcx
+    .cfi_restore rcx
+    .cfi_def_cfa_offset 24
     pop %rbx
+    .cfi_restore rbx
+    .cfi_def_cfa_offset 16
     pop %rax
+    .cfi_restore rax
+    .cfi_def_cfa_offset 8
     ret
+    .cfi_endproc
 
 #endif