arch/all-unix/exec/exec_platform.h

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