#define LIBFFI_ASM
#include <fficonfig.h>
#include <ffi.h>
-#include <ffi_cfi.h>
#include "internal64.h"
.text
FFI_HIDDEN(C(ffi_call_unix64))
C(ffi_call_unix64):
- cfi_startproc
+L(UW0):
movq (%rsp), %r10 /* Load return address. */
leaq (%rdi, %rsi), %rax /* Find local stack base. */
movq %rdx, (%rax) /* Save flags. */
unwind back to ffi_call. Note that the location to which we
moved the return address is (the new) CFA-8, so from the
perspective of the unwind info, it hasn't moved. */
- cfi_def_cfa(%rbp, 32)
- cfi_rel_offset(%rbp, 16)
+L(UW1):
+ /* cfi_def_cfa(%rbp, 32) */
+ /* cfi_rel_offset(%rbp, 16) */
movq %rdi, %r10 /* Save a copy of the register area. */
movq %r8, %r11 /* Save a copy of the target fn. */
movq 0(%rbp), %rcx /* Reload flags. */
movq 8(%rbp), %rdi /* Reload raddr. */
movq 16(%rbp), %rbp /* Reload old frame pointer. */
- cfi_remember_state
- cfi_def_cfa(%rsp, 8)
- cfi_restore(%rbp)
+L(UW2):
+ /* cfi_remember_state */
+ /* cfi_def_cfa(%rsp, 8) */
+ /* cfi_restore(%rbp) */
/* The first byte of the flags contains the FFI_TYPE. */
cmpb $UNIX64_RET_LAST, %cl
It's not worth an indirect jump to load the exact set of
SSE registers needed; zero or all is a good compromise. */
.balign 2
- cfi_restore_state
+L(UW3):
+ /* cfi_restore_state */
L(load_sse):
movdqa 0x30(%r10), %xmm0
movdqa 0x40(%r10), %xmm1
movdqa 0xa0(%r10), %xmm7
jmp L(ret_from_load_sse)
- cfi_endproc
+L(UW4):
ENDF(C(ffi_call_unix64))
/* 6 general registers, 8 vector registers,
FFI_HIDDEN(C(ffi_closure_unix64_sse))
C(ffi_closure_unix64_sse):
- cfi_startproc
+L(UW5):
subq $ffi_closure_FS, %rsp
- /* Note clang bug 21515: adjust_cfa_offset error across endproc. */
- cfi_def_cfa_offset(ffi_closure_FS + 8)
+L(UW6):
+ /* cfi_adjust_cfa_offset(ffi_closure_FS) */
movdqa %xmm0, ffi_closure_OFS_V+0x00(%rsp)
movdqa %xmm1, ffi_closure_OFS_V+0x10(%rsp)
movdqa %xmm7, ffi_closure_OFS_V+0x70(%rsp)
jmp L(sse_entry1)
- cfi_endproc
+L(UW7):
ENDF(C(ffi_closure_unix64_sse))
.balign 2
FFI_HIDDEN(C(ffi_closure_unix64))
C(ffi_closure_unix64):
- cfi_startproc
+L(UW8):
subq $ffi_closure_FS, %rsp
- /* Note clang bug 21515: adjust_cfa_offset error across endproc. */
- cfi_def_cfa_offset(ffi_closure_FS + 8)
+L(UW9):
+ /* cfi_adjust_cfa_offset(ffi_closure_FS) */
L(sse_entry1):
movq %rdi, ffi_closure_OFS_G+0x00(%rsp)
movq %rsi, ffi_closure_OFS_G+0x08(%rsp)
/* Deallocate stack frame early; return value is now in redzone. */
addq $ffi_closure_FS, %rsp
- cfi_adjust_cfa_offset(-ffi_closure_FS)
+L(UW10):
+ /* cfi_adjust_cfa_offset(-ffi_closure_FS) */
/* The first byte of the return value contains the FFI_TYPE. */
cmpb $UNIX64_RET_LAST, %al
L(la): call PLT(C(abort))
- cfi_endproc
+L(UW11):
ENDF(C(ffi_closure_unix64))
.balign 2
FFI_HIDDEN(C(ffi_go_closure_unix64_sse))
C(ffi_go_closure_unix64_sse):
- cfi_startproc
+L(UW12):
subq $ffi_closure_FS, %rsp
- /* Note clang bug 21515: adjust_cfa_offset error across endproc. */
- cfi_def_cfa_offset(ffi_closure_FS + 8)
+L(UW13):
+ /* cfi_adjust_cfa_offset(ffi_closure_FS) */
movdqa %xmm0, ffi_closure_OFS_V+0x00(%rsp)
movdqa %xmm1, ffi_closure_OFS_V+0x10(%rsp)
movdqa %xmm7, ffi_closure_OFS_V+0x70(%rsp)
jmp L(sse_entry2)
- cfi_endproc
+L(UW14):
ENDF(C(ffi_go_closure_unix64_sse))
.balign 2
FFI_HIDDEN(C(ffi_go_closure_unix64))
C(ffi_go_closure_unix64):
- cfi_startproc
+L(UW15):
subq $ffi_closure_FS, %rsp
- /* Note clang bug 21515: adjust_cfa_offset error across endproc. */
- cfi_def_cfa_offset(ffi_closure_FS + 8)
+L(UW16):
+ /* cfi_adjust_cfa_offset(ffi_closure_FS) */
L(sse_entry2):
movq %rdi, ffi_closure_OFS_G+0x00(%rsp)
movq %rsi, ffi_closure_OFS_G+0x08(%rsp)
#endif
jmp L(do_closure)
- cfi_endproc
+L(UW17):
ENDF(C(ffi_go_closure_unix64))
+/* Sadly, OSX cctools-as doesn't understand .cfi directives at all. */
+
+#ifdef __APPLE__
+.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support
+#elif defined(HAVE_AS_X86_64_UNWIND_SECTION_TYPE)
+.section .eh_frame,"a",@unwind
+#else
+.section .eh_frame,"a",@progbits
+#endif
+
+#ifdef __APPLE__
+# define FDE_NAME(X) .globl X; X:
+#else
+# define FDE_NAME(X)
+#endif
+#ifdef HAVE_AS_X86_PCREL
+# define PCREL(X) X - .
+#else
+# define PCREL(X) X@rel
+#endif
+
+/* Simplify advancing between labels. Assume DW_CFA_advance_loc1 fits. */
+#define ADV(N, P) .byte 2, L(N)-L(P)
+
+ .balign 8
+L(CIE):
+ .set L(set0),L(ECIE)-L(SCIE)
+ .long L(set0) /* CIE Length */
+L(SCIE):
+ .long 0 /* CIE Identifier Tag */
+ .byte 1 /* CIE Version */
+ .ascii "zR\0" /* CIE Augmentation */
+ .byte 1 /* CIE Code Alignment Factor */
+ .byte 0x78 /* CIE Data Alignment Factor */
+ .byte 0x10 /* CIE RA Column */
+ .byte 1 /* Augmentation size */
+ .byte 0x1b /* FDE Encoding (pcrel sdata4) */
+ .byte 0xc, 7, 8 /* DW_CFA_def_cfa, %rsp offset 8 */
+ .byte 0x80+16, 1 /* DW_CFA_offset, %rip offset 1*-8 */
+ .balign 8
+L(ECIE):
+
+FDE_NAME(_ffi_call_unix64.eh)
+ .set L(set1),L(EFDE1)-L(SFDE1)
+ .long L(set1) /* FDE Length */
+L(SFDE1):
+ .long L(SFDE1)-L(CIE) /* FDE CIE offset */
+ .long PCREL(L(UW0)) /* Initial location */
+ .long L(UW4)-L(UW0) /* Address range */
+ .byte 0 /* Augmentation size */
+ ADV(UW1, UW0)
+ .byte 0xc, 6, 32 /* DW_CFA_def_cfa, %rbp 32 */
+ .byte 0x80+6, 2 /* DW_CFA_offset, %rbp 2*-8 */
+ ADV(UW2, UW1)
+ .byte 0xa /* DW_CFA_remember_state */
+ .byte 0xc, 7, 8 /* DW_CFA_def_cfa, %rsp 8 */
+ .byte 0xc0+6 /* DW_CFA_restore, %rbp */
+ ADV(UW3, UW2)
+ .byte 0xb /* DW_CFA_restore_state */
+ .balign 8
+L(EFDE1):
+
+FDE_NAME(_ffi_closure_unix64_sse.eh)
+ .set L(set2),L(EFDE2)-L(SFDE2)
+ .long L(set2) /* FDE Length */
+L(SFDE2):
+ .long L(SFDE2)-L(CIE) /* FDE CIE offset */
+ .long PCREL(L(UW5)) /* Initial location */
+ .long L(UW7)-L(UW5) /* Address range */
+ .byte 0 /* Augmentation size */
+ ADV(UW6, UW5)
+ .byte 0xe /* DW_CFA_def_cfa_offset */
+ .byte ffi_closure_FS + 8, 1 /* uleb128, assuming 128 <= FS < 255 */
+ .balign 8
+L(EFDE2):
+
+FDE_NAME(_ffi_closure_unix64.eh)
+ .set L(set3),L(EFDE3)-L(SFDE3)
+ .long L(set3) /* FDE Length */
+L(SFDE3):
+ .long L(SFDE3)-L(CIE) /* FDE CIE offset */
+ .long PCREL(L(UW8)) /* Initial location */
+ .long L(UW11)-L(UW8) /* Address range */
+ .byte 0 /* Augmentation size */
+ ADV(UW9, UW8)
+ .byte 0xe /* DW_CFA_def_cfa_offset */
+ .byte ffi_closure_FS + 8, 1 /* uleb128, assuming 128 <= FS < 255 */
+ ADV(UW10, UW9)
+ .byte 0xe, 8 /* DW_CFA_def_cfa_offset 8 */
+L(EFDE3):
+
+FDE_NAME(_ffi_go_closure_unix64_sse.eh)
+ .set L(set4),L(EFDE4)-L(SFDE4)
+ .long L(set4) /* FDE Length */
+L(SFDE4):
+ .long L(SFDE4)-L(CIE) /* FDE CIE offset */
+ .long PCREL(L(UW12)) /* Initial location */
+ .long L(UW14)-L(UW12) /* Address range */
+ .byte 0 /* Augmentation size */
+ ADV(UW13, UW12)
+ .byte 0xe /* DW_CFA_def_cfa_offset */
+ .byte ffi_closure_FS + 8, 1 /* uleb128, assuming 128 <= FS < 255 */
+ .balign 8
+L(EFDE4):
+
+FDE_NAME(_ffi_go_closure_unix64.eh)
+ .set L(set5),L(EFDE5)-L(SFDE5)
+ .long L(set5) /* FDE Length */
+L(SFDE5):
+ .long L(SFDE5)-L(CIE) /* FDE CIE offset */
+ .long PCREL(L(UW15)) /* Initial location */
+ .long L(UW17)-L(UW15) /* Address range */
+ .byte 0 /* Augmentation size */
+ ADV(UW16, UW15)
+ .byte 0xe /* DW_CFA_def_cfa_offset */
+ .byte ffi_closure_FS + 8, 1 /* uleb128, assuming 128 <= FS < 255 */
+ .balign 8
+L(EFDE5):
+#ifdef __APPLE__
+ .subsections_via_symbols
+#endif
+
#endif /* __x86_64__ */
#if defined __ELF__ && defined __linux__
.section .note.GNU-stack,"",@progbits
projects / platform / upstream / libffi.git / commitdiff