mirror of https://github.com/l4ka/pistachio.git
PIC support for syscall bindings. Thanks to Sebastian Sumpf/Genode Labs
This commit is contained in:
Philipp Kupferschmied
parent
c38ee120d5
commit
6af04051e9
|
|
@ -47,6 +47,28 @@
|
|||
# define __L4_CLOBBER_REGS "ebx", "cc"
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define _C_ "C"
|
||||
#else
|
||||
#define _C_
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Note: We do not call the __L4*-functions from inline assembly any more,
|
||||
* instead we pass the pointers as input operands. This way there is no need for
|
||||
* the linker to generate text relocations for position independent code.
|
||||
*/
|
||||
extern _C_ void __L4_ExchangeRegisters(void);
|
||||
extern _C_ void __L4_ThreadControl(void);
|
||||
extern _C_ void __L4_SystemClock(void);
|
||||
extern _C_ void __L4_ThreadSwitch(void);
|
||||
extern _C_ void __L4_Schedule(void);
|
||||
extern _C_ void __L4_Ipc(void);
|
||||
extern _C_ void __L4_Lipc(void);
|
||||
extern _C_ void __L4_Unmap(void);
|
||||
extern _C_ void __L4_SpaceControl(void);
|
||||
extern _C_ void __L4_ProcessorControl(void);
|
||||
extern _C_ void __L4_MemoryControl(void);
|
||||
|
||||
L4_INLINE void * L4_KernelInterface (L4_Word_t *ApiVersion,
|
||||
L4_Word_t *ApiFlags,
|
||||
|
|
@ -104,23 +126,26 @@ L4_INLINE L4_ThreadId_t L4_ExchangeRegisters (L4_ThreadId_t dest,
|
|||
"/* L4_ExchangeRegisters() */ \n"
|
||||
__L4_SAVE_REGS
|
||||
" pushl %%esi \n"
|
||||
" pushl %%edi \n"
|
||||
" movl (%%esi), %%ebp \n"
|
||||
" movl 4(%%esi), %%edi \n"
|
||||
" movl 8(%%esi), %%ebx \n"
|
||||
" movl 12(%%esi), %%esi \n"
|
||||
" call __L4_ExchangeRegisters \n"
|
||||
" xchgl %%esi, (%%esp) \n"
|
||||
" call *(%%esp) \n"
|
||||
" xchgl %%esi, 4(%%esp) \n"
|
||||
" movl %%edi, 4(%%esi) \n"
|
||||
" movl %%ebx, 8(%%esi) \n"
|
||||
" movl %%ebp, (%%esi) \n"
|
||||
" popl %%edi \n"
|
||||
" popl %%esi \n"
|
||||
__L4_RESTORE_REGS
|
||||
:
|
||||
"=a" (result), "=c" (*old_control), "=d" (*old_sp), "=S" (*old_ip)
|
||||
:
|
||||
"a" (dest.raw), "c" (control), "d" (sp), "S" (&in)
|
||||
"a" (dest.raw), "c" (control), "d" (sp), "S" (&in),
|
||||
"D" (__L4_ExchangeRegisters)
|
||||
:
|
||||
"edi", "memory", __L4_CLOBBER_REGS);
|
||||
"memory", __L4_CLOBBER_REGS);
|
||||
|
||||
old_pager->raw = in.ebp;
|
||||
*old_flags = in.edi;
|
||||
|
|
@ -141,7 +166,9 @@ L4_INLINE L4_Word_t L4_ThreadControl (L4_ThreadId_t dest,
|
|||
__asm__ __volatile__ (
|
||||
"/* L4_ThreadControl() */ \n"
|
||||
__L4_SAVE_REGS
|
||||
" call __L4_ThreadControl \n"
|
||||
" movl %%edi, %%ebx \n"
|
||||
" movl %9, %%edi \n"
|
||||
" call *%%ebx \n"
|
||||
__L4_RESTORE_REGS
|
||||
|
||||
: /* outputs */
|
||||
|
|
@ -156,7 +183,8 @@ L4_INLINE L4_Word_t L4_ThreadControl (L4_ThreadId_t dest,
|
|||
"1" (Pager),
|
||||
"2" (Scheduler),
|
||||
"3" (SpaceSpecifier),
|
||||
"4" (UtcbLocation)
|
||||
"m" (UtcbLocation),
|
||||
"D" (__L4_ThreadControl)
|
||||
|
||||
: /* clobbers */
|
||||
__L4_CLOBBER_REGS);
|
||||
|
|
@ -171,14 +199,14 @@ L4_INLINE L4_Clock_t L4_SystemClock (void)
|
|||
|
||||
__asm__ __volatile__ (
|
||||
"/* L4_SystemClock() */ \n"
|
||||
" call __L4_SystemClock \n"
|
||||
|
||||
" call *%%ecx \n"
|
||||
: /* outputs */
|
||||
"=A" (result.raw)
|
||||
|
||||
: /* no inputs */
|
||||
:
|
||||
"c" (__L4_SystemClock)
|
||||
: /* clobbers */
|
||||
"ecx", "esi", "edi");
|
||||
"esi", "edi");
|
||||
|
||||
return result;
|
||||
}
|
||||
|
|
@ -188,12 +216,13 @@ L4_INLINE void L4_ThreadSwitch (L4_ThreadId_t dest)
|
|||
{
|
||||
__asm__ __volatile__ (
|
||||
"/* L4_ThreadSwitch() */ \n"
|
||||
" call __L4_ThreadSwitch \n"
|
||||
" call *%%ecx \n"
|
||||
|
||||
: /* no outputs */
|
||||
|
||||
: /* inputs */
|
||||
"a" (dest)
|
||||
"a" (dest),
|
||||
"c" (__L4_ThreadSwitch)
|
||||
|
||||
/* no clobbers */
|
||||
);
|
||||
|
|
@ -213,7 +242,9 @@ L4_INLINE L4_Word_t L4_Schedule (L4_ThreadId_t dest,
|
|||
__asm__ __volatile__ (
|
||||
"/* L4_Schedule() */ \n"
|
||||
__L4_SAVE_REGS
|
||||
" call __L4_Schedule \n"
|
||||
" movl %%edi, %%ebx \n"
|
||||
" movl %9, %%edi \n"
|
||||
" call *%%ebx \n"
|
||||
__L4_RESTORE_REGS
|
||||
|
||||
: /* outputs */
|
||||
|
|
@ -228,7 +259,8 @@ L4_INLINE L4_Word_t L4_Schedule (L4_ThreadId_t dest,
|
|||
"1" (PrioControl),
|
||||
"2" (TimeControl),
|
||||
"3" (ProcessorControl),
|
||||
"4" (PreemptionControl)
|
||||
"m" (PreemptionControl),
|
||||
"D" (__L4_Schedule)
|
||||
|
||||
: /* clobbers */
|
||||
__L4_CLOBBER_REGS);
|
||||
|
|
@ -246,10 +278,13 @@ L4_INLINE L4_MsgTag_t L4_Ipc (L4_ThreadId_t to,
|
|||
L4_Word_t * utcb = __L4_X86_Utcb ();
|
||||
|
||||
#if defined(__pic__)
|
||||
|
||||
__asm__ __volatile__ (
|
||||
"/* L4_Ipc() */ \n"
|
||||
__L4_SAVE_REGS
|
||||
" call __L4_Ipc \n"
|
||||
" movl %%eax, %%ebx \n"
|
||||
" movl %5, %%eax \n"
|
||||
" call *%%ebx \n"
|
||||
" movl %%ebp, %%ecx \n"
|
||||
" movl %%ebx, %%edx \n"
|
||||
__L4_RESTORE_REGS
|
||||
|
|
@ -262,11 +297,13 @@ L4_INLINE L4_MsgTag_t L4_Ipc (L4_ThreadId_t to,
|
|||
|
||||
: /* inputs */
|
||||
"S" (utcb[0]),
|
||||
"a" (to.raw),
|
||||
"m" (to.raw),
|
||||
"D" (utcb),
|
||||
"c" (Timeouts),
|
||||
"d" (FromSpecifier)
|
||||
"d" (FromSpecifier),
|
||||
"a" (__L4_Ipc)
|
||||
);
|
||||
|
||||
#else
|
||||
L4_Word_t dummy;
|
||||
|
||||
|
|
@ -317,7 +354,9 @@ L4_INLINE L4_MsgTag_t L4_Lipc (L4_ThreadId_t to,
|
|||
__asm__ __volatile__ (
|
||||
"/* L4_Lipc() */ \n"
|
||||
__L4_SAVE_REGS
|
||||
" call __L4_Lipc \n"
|
||||
" movl %%eax, %%ebx \n"
|
||||
" movl %5, %%eax \n"
|
||||
" call *%%ebx \n"
|
||||
" movl %%ebp, %%ecx \n"
|
||||
" movl %%ebx, %%edx \n"
|
||||
__L4_RESTORE_REGS
|
||||
|
|
@ -330,10 +369,11 @@ L4_INLINE L4_MsgTag_t L4_Lipc (L4_ThreadId_t to,
|
|||
|
||||
: /* inputs */
|
||||
"S" (utcb[0]),
|
||||
"a" (to.raw),
|
||||
"m" (to.raw),
|
||||
"D" (utcb),
|
||||
"c" (Timeouts),
|
||||
"d" (FromSpecifier)
|
||||
"d" (FromSpecifier),
|
||||
"a" (__L4_Lipc)
|
||||
);
|
||||
#else
|
||||
L4_Word_t dummy;
|
||||
|
|
@ -378,7 +418,7 @@ L4_INLINE void L4_Unmap (L4_Word_t control)
|
|||
__asm__ __volatile__ (
|
||||
"/* L4_Unmap() */ \n"
|
||||
__L4_SAVE_REGS
|
||||
" call __L4_Unmap \n"
|
||||
" call *%%ecx \n"
|
||||
__L4_RESTORE_REGS
|
||||
|
||||
: /* outputs */
|
||||
|
|
@ -389,10 +429,11 @@ L4_INLINE void L4_Unmap (L4_Word_t control)
|
|||
: /* inputs */
|
||||
"0" (utcb[0]),
|
||||
"1" (utcb),
|
||||
"2" (control)
|
||||
"2" (control),
|
||||
"c" (__L4_Unmap)
|
||||
|
||||
: /* clobbered */
|
||||
"ecx", "edx", __L4_CLOBBER_REGS);
|
||||
"edx", __L4_CLOBBER_REGS);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -408,7 +449,9 @@ L4_INLINE L4_Word_t L4_SpaceControl (L4_ThreadId_t SpaceSpecifier,
|
|||
__asm__ __volatile__ (
|
||||
"/* L4_SpaceControl() */ \n"
|
||||
__L4_SAVE_REGS
|
||||
" call __L4_SpaceControl \n"
|
||||
" movl %%edi, %%ebx \n"
|
||||
" movl %9, %%edi \n"
|
||||
" call *%%ebx \n"
|
||||
__L4_RESTORE_REGS
|
||||
|
||||
: /* outputs */
|
||||
|
|
@ -423,7 +466,8 @@ L4_INLINE L4_Word_t L4_SpaceControl (L4_ThreadId_t SpaceSpecifier,
|
|||
"1" (control),
|
||||
"2" (KernelInterfacePageArea),
|
||||
"3" (UtcbArea),
|
||||
"4" (redirector)
|
||||
"m" (redirector),
|
||||
"D" (__L4_SpaceControl)
|
||||
|
||||
: /* clobbers */
|
||||
__L4_CLOBBER_REGS);
|
||||
|
|
@ -442,7 +486,7 @@ L4_INLINE L4_Word_t L4_ProcessorControl (L4_Word_t ProcessorNo,
|
|||
__asm__ __volatile__ (
|
||||
"/* L4_ProcessorControl() */ \n"
|
||||
__L4_SAVE_REGS
|
||||
" call __L4_ProcessorControl \n"
|
||||
" call *%%edi \n"
|
||||
__L4_RESTORE_REGS
|
||||
|
||||
: /* outputs */
|
||||
|
|
@ -456,7 +500,8 @@ L4_INLINE L4_Word_t L4_ProcessorControl (L4_Word_t ProcessorNo,
|
|||
"0" (ProcessorNo),
|
||||
"1" (InternalFrequency),
|
||||
"2" (ExternalFrequency),
|
||||
"3" (voltage)
|
||||
"3" (voltage),
|
||||
"4" (__L4_ProcessorControl)
|
||||
|
||||
: /* clobbers */
|
||||
__L4_CLOBBER_REGS);
|
||||
|
|
@ -474,11 +519,14 @@ L4_INLINE L4_Word_t L4_MemoryControl (L4_Word_t control,
|
|||
__asm__ __volatile__ (
|
||||
"/* L4_MemoryControl() */ \n"
|
||||
__L4_SAVE_REGS
|
||||
" pushl %%edi \n"
|
||||
" movl %8, %%edi \n"
|
||||
" movl 12(%6), %%ebp \n"
|
||||
" movl 8(%6), %%ebx \n"
|
||||
" movl 4(%6), %%edx \n"
|
||||
" movl (%6), %%ecx \n"
|
||||
" call __L4_MemoryControl \n"
|
||||
" call *(%%esp) \n"
|
||||
" popl %%edi \n"
|
||||
__L4_RESTORE_REGS
|
||||
|
||||
: /* outputs */
|
||||
|
|
@ -492,7 +540,8 @@ L4_INLINE L4_Word_t L4_MemoryControl (L4_Word_t control,
|
|||
"0" (control),
|
||||
"1" (attributes),
|
||||
"3" (utcb[0]),
|
||||
"4" (utcb)
|
||||
"m" (utcb),
|
||||
"4" (__L4_MemoryControl)
|
||||
|
||||
: /* clobbers */
|
||||
__L4_CLOBBER_REGS);
|
||||
|
|
|
|||
Loading…
Reference in New Issue