view dyncall/README.txt @ 27:523c45dfa8fb

- refactored arm calling conventions' callvm code, so that the code that keeps the caller from overwriting the return value on some platforms also works on OpenBSD (before we casted the function pointer to have long long as return type, to hint the caller that there is one, but that triggers an intentional SIGABRT on OpenBSD for security reasons; now the decl reflects this, directly)
author cslag
date Tue, 15 Sep 2015 12:48:52 +0200
parents 3e629dc19168
children
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Library Design

Overview:
1. Call Kernel
2. Utilities (memory and static sized vectors)
3. Call State Machine
4. Application Programming Interface
5. extension: high-level formatted C API (ellipsis style)


1. Call Kernel 

Assembly Implementation:

  gcc front-end: dyncall_call.S
    uses the C preprocessor
    will include the apropriate assembly source

  architecture/tool specific sources:
    dyncall_call_<ARCH>_<ASMTOOL>.[s|asm]


2. Utilities (memory and static sized vectors)

2.1 Memory Management

C Interface: dyncall_alloc.h


2.2 Static-sized Vector

C Interface: dyncall_vector.h

C Implementation: dyncall_vector.c


3. Call State Machine

C Implementation:
  Top-level: dynall_callvm.c
  Sub-levels: 
    dyncall_callvm_<ARCH>.c


4. Application Programming Interface

C Header:
  Top-level: dyncall.h
  Sub-level headers: 
    dyncall_macros.h 
    dyncall_config.h 
    dyncall_types.h 
C Implementation: dyncall_api.c


5. Extension: High-level C API (ellipsis style)

C Header:
  Top-level: dyncall_callf.h
  Sub-level headers:
    dyncall_value.h
    dyncall_signature.h
C Implementation: dyncall_callf.c