include/minix/compiler-ack.h

   1 /* Definitions for ACK-specific features. */
   2
   3 #ifndef _MINIX_COMPILER_ACK_H
   4 #define _MINIX_COMPILER_ACK_H
   5
   6 /* ACK expects the caller to pop the hidden pointer on struct return. */
   7 #define BYTES_TO_POP_ON_STRUCT_RETURN
   8
   9 /*
  10  * ACK doesn't move the last argument of a variadic arguments function
  11  * anywhere, once it's on the stack as a function parameter. Thus, it is
  12  * possible to make strong assumption on the immutability of the stack
  13  * layout and use the address of that argument as the start of an array.
  14  *
  15  * If you're curious, just look at lib/libc/posix/_execl*.c ;-)
  16  */
  17
  18 #define FUNC_ARGS_ARRAY 1
  19
  20 #endif /* _MINIX_COMPILER_ACK_H */