diff options
Diffstat (limited to 'comm/third_party/libgcrypt/mpi/amd64/func_abi.h')
| -rw-r--r-- | comm/third_party/libgcrypt/mpi/amd64/func_abi.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/comm/third_party/libgcrypt/mpi/amd64/func_abi.h b/comm/third_party/libgcrypt/mpi/amd64/func_abi.h new file mode 100644 index 0000000000..a60363e4e4 --- /dev/null +++ b/comm/third_party/libgcrypt/mpi/amd64/func_abi.h @@ -0,0 +1,56 @@ +#include <config.h> + +#ifdef __x86_64__ +#ifdef HAVE_GCC_ASM_CFI_DIRECTIVES +# define CFI_STARTPROC() .cfi_startproc +# define CFI_ENDPROC() .cfi_endproc +# define CFI_ADJUST_CFA_OFFSET(off) .cfi_adjust_cfa_offset off +# define CFI_REL_OFFSET(reg,off) .cfi_rel_offset reg, off +# define CFI_RESTORE(reg) .cfi_restore reg + +# define CFI_PUSH(reg) \ + CFI_ADJUST_CFA_OFFSET(8); CFI_REL_OFFSET(reg, 0) +# define CFI_POP(reg) \ + CFI_ADJUST_CFA_OFFSET(-8); CFI_RESTORE(reg) +#else +# define CFI_STARTPROC() +# define CFI_ENDPROC() +# define CFI_ADJUST_CFA_OFFSET(off) +# define CFI_REL_OFFSET(reg,off) +# define CFI_RESTORE(reg) + +# define CFI_PUSH(reg) +# define CFI_POP(reg) +#endif +#endif + +#ifdef USE_MS_ABI + /* Store registers and move four first input arguments from MS ABI to + * SYSV ABI. */ + #define FUNC_ENTRY() \ + CFI_STARTPROC(); \ + pushq %rsi; \ + CFI_PUSH(%rsi); \ + pushq %rdi; \ + CFI_PUSH(%rdi); \ + movq %rdx, %rsi; \ + movq %rcx, %rdi; \ + movq %r8, %rdx; \ + movq %r9, %rcx; + + /* Restore registers. */ + #define FUNC_EXIT() \ + popq %rdi; \ + CFI_POP(%rdi); \ + popq %rsi; \ + CFI_POP(%rsi); \ + ret; \ + CFI_ENDPROC(); +#else + #define FUNC_ENTRY() \ + CFI_STARTPROC(); + + #define FUNC_EXIT() \ + ret; \ + CFI_ENDPROC(); +#endif |