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Add support for WIN64 exception handling to external unwinder.

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Modify unwinding to always return _ff or _c unwind type.
Generate PE object .pdata/.xdata sections for x64 interpreter.
Can drop r12-r15 saves in Windows/x64 interpreter now.
This commit is contained in:
Mike Pall
2010-01-05 22:39:46 +01:00
parent b3e3bad0ff
commit c31ac26fb9
5 changed files with 177 additions and 44 deletions
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30
src/buildvm_x86.dasc
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@@ -168,28 +168,22 @@
|.define CFRAME_SPACE, aword*5 // Delta for rsp (see <--).
|.macro saveregs
| push rbp; push rdi; push rsi; push rbx
| push r15; push r14; push r13; push r12
| sub rsp, CFRAME_SPACE
|.endmacro
|.macro restoreregs
| add rsp, CFRAME_SPACE
| pop r12; pop r13; pop r14; pop r15
| pop rbx; pop rsi; pop rdi; pop rbp
|.endmacro
|
|.define SAVE_CFRAME, aword [rsp+aword*17]
|.define SAVE_PC, dword [rsp+dword*33]
|.define SAVE_L, dword [rsp+dword*32]
|.define SAVE_ERRF, dword [rsp+dword*31]
|.define SAVE_NRES, dword [rsp+dword*30]
|.define TMP2, dword [rsp+dword*29]
|.define TMP1, dword [rsp+dword*28]
|.define SAVE_CFRAME, aword [rsp+aword*13]
|.define SAVE_PC, dword [rsp+dword*25]
|.define SAVE_L, dword [rsp+dword*24]
|.define SAVE_ERRF, dword [rsp+dword*23]
|.define SAVE_NRES, dword [rsp+dword*22]
|.define TMP2, dword [rsp+dword*21]
|.define TMP1, dword [rsp+dword*20]
|//----- 16 byte aligned, ^^^ 32 byte register save area, owned by interpreter
|.define SAVE_RET, aword [rsp+aword*13] //<-- rsp entering interpreter.
|.define SAVE_R8, aword [rsp+aword*12]
|.define SAVE_R7, aword [rsp+aword*11]
|.define SAVE_R6, aword [rsp+aword*10]
|.define SAVE_R5, aword [rsp+aword*9]
|.define SAVE_RET, aword [rsp+aword*9] //<-- rsp entering interpreter.
|.define SAVE_R4, aword [rsp+aword*8]
|.define SAVE_R3, aword [rsp+aword*7]
|.define SAVE_R2, aword [rsp+aword*6]
@@ -202,7 +196,7 @@
|//----- 16 byte aligned, ^^^ 32 byte register save area, owned by callee
|
|// TMPQ overlaps TMP1/TMP2. MULTRES overlaps TMP2 (and TMPQ).
|.define TMPQ, qword [rsp+aword*14]
|.define TMPQ, qword [rsp+aword*10]
|.define MULTRES, TMP2
|.define TMPa, ARG5
|.define ARG5d, dword [rsp+aword*4]
@@ -861,10 +855,12 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
| mov dword [RA+RD*8-4], LJ_TNIL // Ensure one valid arg.
| mov RC, RA // ... in [RC]
| mov PC, [RB-12] // Restore PC from [cont|PC].
| mov RA, dword [RB-16]
|.if X64
| movsxd RAa, dword [RB-16] // May be negative on WIN64 with debug.
| lea KBASEa, qword [=>0]
| add RAa, KBASEa
|.else
| mov RA, dword [RB-16]
|.endif
| mov LFUNC:KBASE, [BASE-8]
| mov PROTO:KBASE, LFUNC:KBASE->pt
@@ -1854,7 +1850,7 @@ static void build_subroutines(BuildCtx *ctx, int cmov, int sse)
|.ffunc coroutine_yield
| mov L:RB, SAVE_L
| mov [RA-4], PC
| test aword L:RB->cframe, CFRAME_CANYIELD
| test aword L:RB->cframe, CFRAME_RESUME
| jz ->fff_fallback
| mov L:RB->base, RA
| lea RC, [RA+NARGS:RC*8-8]