%else
rep ret
%endif
+ annotate_function_size
%endmacro
%define last_branch_adr $$
times ((last_branch_adr-$)>>31)+1 rep ; times 1 iff $ == last_branch_adr.
%endif
ret
+ annotate_function_size
%endmacro
%macro BRANCH_INSTR 0-*
%elif %2
jmp %1
%endif
+ annotate_function_size
%endmacro
;=============================================================================
cglobal_internal 0, %1 %+ SUFFIX, %2
%endmacro
%macro cglobal_internal 2-3+
+ annotate_function_size
%if %1
%xdefine %%FUNCTION_PREFIX private_prefix
%xdefine %%VISIBILITY hidden
CAT_XDEFINE cglobaled_, %2, 1
%endif
%xdefine current_function %2
+ %xdefine current_function_section __SECT__
%if FORMAT_ELF
global %2:function %%VISIBILITY
%else
[SECTION .note.GNU-stack noalloc noexec nowrite progbits]
%endif
+; Tell debuggers how large the function was.
+; This may be invoked multiple times per function; we rely on later instances overriding earlier ones.
+; This is invoked by RET and similar macros, and also cglobal does it for the previous function,
+; but if the last function in a source file doesn't use any of the standard macros for its epilogue,
+; then its size might be unspecified.
+%macro annotate_function_size 0
+ %ifdef __YASM_VER__
+ %ifdef current_function
+ %if FORMAT_ELF
+ current_function_section
+ %%ecf equ $
+ size current_function %%ecf - current_function
+ __SECT__
+ %endif
+ %endif
+ %endif
+%endmacro
+
; cpuflags
%assign cpuflags_mmx (1<<0)
;-----------------------------------------------------------------------------
cglobal stack_clobber, 1,2
; Clobber the stack with junk below the stack pointer
- %define size (max_args+6)*8
- SUB rsp, size
- mov r1, size-8
+ %define argsize (max_args+6)*8
+ SUB rsp, argsize
+ mov r1, argsize-8
.loop:
mov [rsp+r1], r0
sub r1, 8
jge .loop
- ADD rsp, size
+ ADD rsp, argsize
RET
%if WIN64