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PPC: Save/restore cr2, cr3 and cr4 when entering/leaving VM.

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This commit is contained in:
Mike Pall 2011-08-10 21:54:03 +02:00
parent 5385809d30
commit d84207b8b6
3 changed files with 1138 additions and 1079 deletions
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50
src/buildvm_ppc.dasc
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@ -62,26 +62,28 @@
|.define CRET2, r4
|
|// Stack layout while in interpreter. Must match with lj_frame.h.
|.define SAVE_LR, 260(sp)
|.define CFRAME_SPACE, 256 // Delta for sp.
|// Back chain for sp: 256(sp) <-- sp entering interpreter
|.define SAVE_GPR_, 184 // .. 184+18*4: 32 bit GPR saves.
|.define SAVE_FPR_, 40 // .. 40+18*8: 64 bit FPR saves.
|.define TONUM_LO, 36(sp)
|.define TONUM_HI, 32(sp)
|.define SAVE_ERRF, 28(sp) // 32 bit C frame info.
|.define SAVE_NRES, 24(sp)
|.define SAVE_CFRAME, 20(sp)
|.define SAVE_L, 16(sp)
|.define SAVE_MULTRES, 12(sp)
|.define SAVE_PC, 8(sp)
|.define SAVE_LR, 276(sp)
|.define CFRAME_SPACE, 272 // Delta for sp.
|// Back chain for sp: 272(sp) <-- sp entering interpreter
|.define SAVE_FPR_, 128 // .. 128+18*8: 64 bit FPR saves.
|.define SAVE_GPR_, 56 // .. 56+18*4: 32 bit GPR saves.
|.define SAVE_CR, 52(sp) // 32 bit CR save.
|.define SAVE_ERRF, 48(sp) // 32 bit C frame info.
|.define SAVE_NRES, 44(sp)
|.define SAVE_CFRAME, 40(sp)
|.define SAVE_L, 36(sp)
|.define SAVE_PC, 32(sp)
|.define SAVE_MULTRES, 28(sp)
|.define UNUSED1, 24(sp)
|.define TMPD_LO, 20(sp)
|.define TMPD_HI, 16(sp)
|.define TONUM_LO, 12(sp)
|.define TONUM_HI, 8(sp)
|// Next frame lr: 4(sp)
|// Back chain for sp: 0(sp) <-- sp while in interpreter
|
|.define TMPD_LO, SAVE_MULTRES
|.define TMPD_BLO, 15(sp)
|.define TMPD_HI, SAVE_PC
|.define TMPD, SAVE_PC
|.define TMPD_BLO, 23(sp)
|.define TMPD, TMPD_HI
|.define TONUM_D, TONUM_HI
|
|.macro save_, reg
@ -96,16 +98,16 @@
|.macro saveregs
| stwu sp, -CFRAME_SPACE(sp)
| save_ 14; save_ 15; save_ 16; save_ 17; save_ 18; save_ 19
| mflr r0
| mflr r0; mfcr r12
| save_ 20; save_ 21; save_ 22; save_ 23; save_ 24; save_ 25
| stw r0, SAVE_LR
| stw r0, SAVE_LR; stw r12, SAVE_CR
| save_ 26; save_ 27; save_ 28; save_ 29; save_ 30; save_ 31
|.endmacro
|
|.macro restoreregs
| lwz r0, SAVE_LR
| lwz r0, SAVE_LR; lwz r12, SAVE_CR
| rest_ 14; rest_ 15; rest_ 16; rest_ 17; rest_ 18; rest_ 19
| mtlr r0
| mtlr r0; mtcrf 0x38, r12
| rest_ 20; rest_ 21; rest_ 22; rest_ 23; rest_ 24; rest_ 25
| rest_ 26; rest_ 27; rest_ 28; rest_ 29; rest_ 30; rest_ 31
| addi sp, sp, CFRAME_SPACE
@ -4518,7 +4520,8 @@ static void emit_asm_debug(BuildCtx *ctx)
"\t.long .Lbegin\n"
"\t.long %d\n"
"\t.byte 0xe\n\t.uleb128 %d\n"
"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n",
"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
"\t.byte 0x5\n\t.uleb128 70\n\t.uleb128 55\n",
(int)ctx->codesz, CFRAME_SIZE);
for (i = 14; i <= 31; i++)
fprintf(ctx->fp,
@ -4555,7 +4558,8 @@ static void emit_asm_debug(BuildCtx *ctx)
"\t.long %d\n"
"\t.uleb128 0\n" /* augmentation length */
"\t.byte 0xe\n\t.uleb128 %d\n"
"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n",
"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
"\t.byte 0x5\n\t.uleb128 70\n\t.uleb128 55\n",
(int)ctx->codesz, CFRAME_SIZE);
for (i = 14; i <= 31; i++)
fprintf(ctx->fp,

2153
src/buildvm_ppc.h
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File diff suppressed because it is too large Load Diff

14
src/lj_frame.h
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@ -100,13 +100,13 @@ enum {
#define CFRAME_SIZE 64
#define CFRAME_SHIFT_MULTRES 3
#elif LJ_TARGET_PPC
#define CFRAME_OFS_ERRF 28
#define CFRAME_OFS_NRES 24
#define CFRAME_OFS_PREV 20
#define CFRAME_OFS_L 16
#define CFRAME_OFS_PC 8
#define CFRAME_OFS_MULTRES 12
#define CFRAME_SIZE 256
#define CFRAME_OFS_ERRF 48
#define CFRAME_OFS_NRES 44
#define CFRAME_OFS_PREV 40
#define CFRAME_OFS_L 36
#define CFRAME_OFS_PC 32
#define CFRAME_OFS_MULTRES 28
#define CFRAME_SIZE 272
#define CFRAME_SHIFT_MULTRES 3
#elif LJ_TARGET_PPCSPE
#define CFRAME_OFS_ERRF 28