arch/all-unix/exec/exec_platform.h

   1 #ifndef __EXEC_PLATFORM_H
   2 #define __EXEC_PLATFORM_H
   3
   4 #define SCHEDQUANTUM_VALUE      4
   5
   6 #ifdef HOST_OS_android
   7 /* Android is not a true Linux ;-) */
   8 #undef HOST_OS_linux
   9
  10 #else
  11
  12 #ifndef _XOPEN_SOURCE
  13 /* On Darwin this definition is required by ucontext.h (which is marked as deprecated)
  14  * At least on Debian 8, _XOPEN_SOURCE is already defined in /usr/include/features.h
  15  */
  16 #define _XOPEN_SOURCE
  17 #endif
  18 #include <ucontext.h>
  19
  20 #endif
  21
  22 #ifdef HOST_OS_linux
  23 #define LIBC_NAME "libc.so.6"
  24 #endif
  25
  26 #ifdef HOST_OS_darwin
  27 #define LIBC_NAME "libSystem.dylib"
  28 #endif
  29
  30 #ifndef LIBC_NAME
  31 #define LIBC_NAME "libc.so"
  32 #endif
  33
  34 struct LibCInterface
  35 {
  36     void (*exit)(int status);
  37 #ifdef HAVE_SWAPCONTEXT
  38     int  (*getcontext)(ucontext_t *ucp);
  39     void (*makecontext)(ucontext_t *ucp, void *func(), int argc, ...);
  40     int  (*swapcontext)(ucontext_t *oucp, ucontext_t *ucp);
  41 #endif
  42 };
  43
  44 struct Exec_PlatformData
  45 {
  46     APTR HostLibBase;
  47     struct LibCInterface *SysIFace;
  48 };
  49
  50 #ifndef __AROS_KERNEL__
  51 #define HostLibBase PD(SysBase).HostLibBase
  52 #endif
  53
  54 #ifdef AROS_NO_ATOMIC_OPERATIONS
  55 #define IDNESTCOUNT_INC                 SysBase->IDNestCnt++
  56 #define IDNESTCOUNT_DEC                 SysBase->IDNestCnt--
  57 #define TDNESTCOUNT_INC                 SysBase->TDNestCnt++
  58 #define TDNESTCOUNT_DEC                 SysBase->TDNestCnt--
  59 #define FLAG_SCHEDQUANTUM_CLEAR         SysBase->SysFlags &= ~SFF_QuantumOver
  60 #define FLAG_SCHEDQUANTUM_SET           SysBase->SysFlags |= SFF_QuantumOver
  61 #define FLAG_SCHEDSWITCH_CLEAR          SysBase->AttnResched &= ~ARF_AttnSwitch
  62 #define FLAG_SCHEDSWITCH_SET            SysBase->AttnResched |= ARF_AttnSwitch
  63 #define FLAG_SCHEDDISPATCH_CLEAR        SysBase->AttnResched &= ~ARF_AttnDispatch
  64 #define FLAG_SCHEDDISPATCH_SET          SysBase->AttnResched |= ARF_AttnDispatch
  65 #else
  66 #define IDNESTCOUNT_INC                 AROS_ATOMIC_INC(SysBase->IDNestCnt)
  67 #define IDNESTCOUNT_DEC                 AROS_ATOMIC_DEC(SysBase->IDNestCnt)
  68 #define TDNESTCOUNT_INC                 AROS_ATOMIC_INC(SysBase->TDNestCnt)
  69 #define TDNESTCOUNT_DEC                 AROS_ATOMIC_DEC(SysBase->TDNestCnt)
  70 #define FLAG_SCHEDQUANTUM_CLEAR         AROS_ATOMIC_AND(SysBase->SysFlags, ~SFF_QuantumOver)
  71 #define FLAG_SCHEDQUANTUM_SET           AROS_ATOMIC_OR(SysBase->SysFlags, SFF_QuantumOver)
  72 #define FLAG_SCHEDSWITCH_CLEAR          AROS_ATOMIC_AND(SysBase->AttnResched, ~ARF_AttnSwitch)
  73 #define FLAG_SCHEDSWITCH_SET            AROS_ATOMIC_OR(SysBase->AttnResched, ARF_AttnSwitch)
  74 #define FLAG_SCHEDDISPATCH_CLEAR        AROS_ATOMIC_AND(SysBase->AttnResched, ~ARF_AttnDispatch)
  75 #define FLAG_SCHEDDISPATCH_SET          AROS_ATOMIC_OR(SysBase->AttnResched, ARF_AttnDispatch)
  76 #endif
  77 #define SCHEDQUANTUM_SET(val)           (SysBase->Quantum=(val))
  78 #define SCHEDQUANTUM_GET                (SysBase->Quantum)
  79 #define SCHEDELAPSED_SET(val)           (SysBase->Elapsed=(val))
  80 #define SCHEDELAPSED_GET                (SysBase->Elapsed)
  81 #define IDNESTCOUNT_GET                 (SysBase->IDNestCnt)
  82 #define IDNESTCOUNT_SET(val)            (SysBase->IDNestCnt=(val))
  83 #define TDNESTCOUNT_GET                 (SysBase->TDNestCnt)
  84 #define TDNESTCOUNT_SET(val)            (SysBase->TDNestCnt=(val))
  85 #define FLAG_SCHEDQUANTUM_ISSET         (SysBase->SysFlags & SFF_QuantumOver)
  86 #define FLAG_SCHEDSWITCH_ISSET          (SysBase->AttnResched & ARF_AttnSwitch)
  87 #define FLAG_SCHEDDISPATCH_ISSET        (SysBase->AttnResched & ARF_AttnDispatch)
  88
  89 #define GET_THIS_TASK                   (SysBase->ThisTask)
  90 #define SET_THIS_TASK(x)                (SysBase->ThisTask=(x))
  91
  92 #endif /* __EXEC_PLATFORM_H */