Thunk16.s has not been ported to GCC. This will at least get past the assembler.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@204 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 3 insertions, 167 deletions

diff --git a/MdePkg/Library/BaseLib/Ia32/Thunk16.s b/MdePkg/Library/BaseLib/Ia32/Thunk16.s
index 4236996226..fa7be9192d 100644
--- a/MdePkg/Library/BaseLib/Ia32/Thunk16.s
+++ b/MdePkg/Library/BaseLib/Ia32/Thunk16.s
@@ -21,171 +21,7 @@
 

 

 

-MISMATCH: "EXTERNDEF   C   mCode16Size:DWORD"

-

-MISMATCH: "CONST   SEGMENT FLAT    "DATA"  READONLY"

-

-MISMATCH: "mCode16Size     DD      _TEXT16SIZE"

-

-MISMATCH: "CONSTS"

-

-MISMATCH: "_DATA   SEGMENT FLAT    "DATA""

-

-MISMATCH: "NullSegSel      DQ      0"

-MISMATCH: "_16BitCsSel     LABEL   QWORD"

-                .word -1

-                .word 0

-                .byte 0

-                .byte 0x9b

-                .byte 0x8f              # 16-bit segment

-                .byte 0

-

-MISMATCH: "_16Gdtr         LABEL   FWORD"

-MISMATCH: "                DW      $ - offset NullSegSel - 1"

-MISMATCH: "                DD      offset NullSegSel"

-

-MISMATCH: "_DATAS"

-

-MISMATCH: "_TEXT   SEGMENT FLAT    "CODE"  PARA"

-

-MISMATCH: "IA32_REGS   STRUC   4t"

-MISMATCH: "_EDI        DD      ?"

-MISMATCH: "_ESI        DD      ?"

-MISMATCH: "_EBP        DD      ?"

-MISMATCH: "_ESP        DD      ?"

-MISMATCH: "_EBX        DD      ?"

-MISMATCH: "_EDX        DD      ?"

-MISMATCH: "_ECX        DD      ?"

-MISMATCH: "_EAX        DD      ?"

-MISMATCH: "_DS         DW      ?"

-MISMATCH: "_ES         DW      ?"

-MISMATCH: "_FS         DW      ?"

-MISMATCH: "_GS         DW      ?"

-MISMATCH: "_EFLAGS     DD      ?"

-MISMATCH: "_EIP        DD      ?"

-MISMATCH: "_CS         DW      ?"

-MISMATCH: "_SS         DW      ?"

-MISMATCH: "IA32_REGSS"

-

-MISMATCH: "_STK16      STRUC   1t"

-MISMATCH: "RetEip      DD      ?"

-MISMATCH: "RetCs       DW      ?"

-MISMATCH: "ThunkFlags  DW      ?"

-MISMATCH: "SavedEsp    DD      ?"

-MISMATCH: "SavedSs     DW      ?"

-MISMATCH: "SavedGdtr   FWORD   ?"

-MISMATCH: "SavedCr0    DD      ?"

-MISMATCH: "SavedCr4    DD      ?"

-MISMATCH: "_STK16S"

-

-.global _InternalAsmThunk16

-MISMATCH: "_InternalAsmThunk16:    USES    ebp ebx esi edi ds  es  fs  gs"

-MISMATCH: "    ASSUME  esi:PTR IA32_REGS"

-    movl    36(%esp),%esi

-MISMATCH: "    movzx   edx, [esi]._SS"

-    movl    $[esi]._ESP, %edi

-MISMATCH: "    add     edi, - sizeof (_STK16) - sizeof (IA32_REGS)"

-    pushl   %edi                        # save stack offset

-    imull   $16,%edx,%eax               # eax <- edx*16

-    addl    %eax,%edi                   # edi <- linear address of 16-bit stack

-MISMATCH: "    push    sizeof (IA32_REGS) / 4"

-    popl    %ecx

-    rep

-    movsl                               # copy context to 16-bit stack

-    popl    %ebx                        # ebx <- 16-bit stack offset

-MISMATCH: "    mov     eax, offset @F              "

-    stosl

-    movl    %cs,%eax                    # return segment

-    stosw

-    movl    40(%esp),%eax               # THUNK flags

-    stosw

-    movl    %esp,%eax

-    stosl                               # save esp

-    movl    %ss,%eax                    # save ss

-    stosw

-MISMATCH: "    sgdt    fword ptr [edi]             "

-MISMATCH: "    sidt    fword ptr [esp + 36]        "

-    movl    %cr0, %esi

-    movl    %esi,6(%edi)                # save CR0

-MISMATCH: "    and     esi, NOT 80000001h          "

-    movl    %cr4, %eax

-    movl    %eax,10(%edi)               # save CR4

-MISMATCH: "    and     al, NOT 30h                 "

-    movl    %edx,%edi                   # edi <- 16-bit stack segment

-    movl    44(%esp),%edx

-    shll    $16,%edx

-    pushl   %edx

-MISMATCH: "    lgdt    _16Gdtr                     "

-    .byte 0xea

-MISMATCH: "    DD      offset @16Bit"

-    .word 8                             # jmp far 8:@16Bit

-@16Bit: 

-    movl    %esi, %cr0                  # disable protected mode

-    movl    %eax, %cr4                  # disable PAE & PSE

-    lret

-@@: 

-    movl    %ss,%eax

-    shll    $4,%eax

-    addl    %esp,%eax                   # eax <- address of 16-bit stack

-MISMATCH: "    lss     esp, fword ptr (_STK16 ptr [esp + sizeof (IA32_REGS)]).SavedEsp"

-MISMATCH: "    lidt    fword ptr [esp + 36]        "

-    ret

-

-

-MISMATCH: "_TEXTS"

-

-MISMATCH: "_TEXT16 SEGMENT USE16   "CODE"  PARA"

-

-.global _Code16Addr

-MISMATCH: "_Code16Addr:    C"

-

-

-.global RealMode

-RealMode: 

-MISMATCH: "    ASSUME  bp:PTR _STK16"

-    movw    %di,%ss                     # set up stack

-    movl    %ebx,%esp

-MISMATCH: "    lidt    fword ptr cs:[_16Idtr - _Code16Addr]"

-    popal

-    popl    %ds

-    popl    %es

-    popl    %fs

-    popl    %gs

-    addw    $4,%sp                      # skip EFlags

-MISMATCH: "    test    (_STK16 ptr [esp + 8]).ThunkFlags, 1"

-    jz      @F

-    pushf

-@@: 

-    pushw   %cs

-MISMATCH: "    push    @FarCallRet - _Code16Addr"

-    jz      @F

-MISMATCH: "    jmp     fword ptr [esp + 6]"

-@@: 

-MISMATCH: "    jmp     fword ptr [esp + 4]"

-@FarCallRet: 

-    pushfl

-    pushw   %gs

-    pushw   %fs

-    pushw   %es

-    pushw   %ds

-    pushal

-    cli

-MISMATCH: "    lea     bp, [esp + sizeof (IA32_REGS)]"

-    .byte 0x66

-MISMATCH: "    lgdt    [bp].SavedGdtr"

-    movl    $[bp].SavedCr4, %eax

-    movl    %eax, %cr4

-    movl    $[bp].SavedCr0, %eax

-    movl    %eax, %cr0                  # restore CR0

-MISMATCH: "    jmp     fword ptr [bp].RetEip"

-

-

-MISMATCH: "_16Idtr     FWORD   (1 SHL 10) - 1"

-

-_TEXT16: 

-

-MISMATCH: "_TEXT16SIZE = _TEXT16- _Code16Addr"

-

-MISMATCH: "_TEXT16S"

-

 

+                        ##########

+                        # FIXME! #

+                        ##########