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NtCurrentTeb() for Alpha rewritten. Reorganized a couple of things

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svn path=/trunk/; revision=4490
This commit is contained in:
KJK::Hyperion 2003-04-04 20:36:15 +00:00
parent 81369c3603
commit f729ca1756
1 changed files with 16 additions and 21 deletions
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37
reactos/include/napi/teb.h
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@ -228,18 +228,17 @@ typedef struct _TEB
PVOID WineDebugInfo; // Needed for WINE DLL's PVOID WineDebugInfo; // Needed for WINE DLL's
} TEB, *PTEB; } TEB, *PTEB;
static inline PTEB NtCurrentTeb(void)
{
PTEB pTeb;
#if defined(_M_IX86) #if defined(_M_IX86)
/* on the x86, the TEB is contained in the FS segment */ /* on the x86, the TEB is contained in the FS segment */
/* FIXME: instead of hardcoded offsets, use offsetof() - if possible */
/* /*
FIXME: GCC should allow defining a variable that directly maps to a register. FIXME: GCC should allow defining a variable that directly maps to a register.
It could make for even faster code It could make for even faster code
*/ */
static inline PTEB NtCurrentTeb(void)
{
PTEB pTeb;
/* FIXME: instead of hardcoded offsets, use offsetof() - if possible */
__asm__ __volatile__ __asm__ __volatile__
( (
"movl %%fs:0x18, %0\n" /* fs:18h == Teb->Tib.Self */ "movl %%fs:0x18, %0\n" /* fs:18h == Teb->Tib.Self */
@ -248,34 +247,30 @@ static inline PTEB NtCurrentTeb(void)
); );
return pTeb; return pTeb;
}
#elif defined(_M_ALPHA) #elif defined(_M_ALPHA)
/* on the Alpha AXP, we call the rdteb PAL to retrieve the address of the TEB */ /* on the Alpha AXP, we call the rdteb PAL to retrieve the address of the TEB */
/* FIXME: this is probably wrong */ /*
__asm__ __volatile__("call_pal rdteb\n"); FIXME? I have no first-hand experience with Alpha development, but I think this
__asm__ __volatile__ is a good guess
( */
"mov %0, $0\n"
: "=r" (pTeb) #define NtCurrentTeb() ((PTEB)__rdteb())
:
); void * __rdteb(void);
#pragma intrinsic(__rdteb)
#elif defined(_M_MIPS) #elif defined(_M_MIPS)
/* on the MIPS R4000, the TEB is loaded at a fixed address (?) */ /* on the MIPS R4000, the TEB is loaded at a fixed address (?) */
/* FIXME: again, not terribly sure about this */ /* FIXME: not terribly sure about this */
__asm__ __volatile__ #define NtCurrentTeb() ((PTEB)0x7FFFF4A8)
(
"lw %0, 0x7FFFF4A8\n"
: "=r" (pTeb)
:
);
/* #elif defined(_M_PPC) */ /* #elif defined(_M_PPC) */
/* FIXME: sorry, I couldn't disassemble the PPC ntdll.dll */ /* FIXME: sorry, I couldn't disassemble the PPC ntdll.dll */
#else #else
#error Unsupported architecture or no architecture specified. #error Unsupported architecture or no architecture specified.
#endif #endif
}
#ifdef _M_IX86 #ifdef _M_IX86
static inline PPEB NtCurrentPeb(void) static inline PPEB NtCurrentPeb(void)