gh-mirror/mikepaul-LuaJIT
1
0
Fork 0
mirror of https://github.com/LuaJIT/LuaJIT.git synced 2025-02-07 23:24:09 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix remaining unwind values on vm frames

Browse Source 
Despite unwind working for vm frames, the change sent before was not
fully correct. By analysing the DWARF code with
"readelf --debug-dump=frames luajit" I noticed it was not well formated.
This commit is contained in:
Gustavo Serra Scalet 2017-09-04 10:51:51 -03:00
parent 13b769e3ad
commit 1401cfb2b3
1 changed files with 21 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
src/vm_ppc64.dasc
View File

@ -4390,39 +4390,40 @@ static void emit_asm_debug(BuildCtx *ctx)
"\t.long 0xffffffff\n" /* CIE_Id */
"\t.byte 0x1\n" /* Version */
"\t.string \"\"\n" /* augmentation */
"\t.uleb128 0x1\n" /* code_alignment_factor */
"\t.uleb128 4\n" /* code_alignment_factor */
"\t.sleb128 -8\n" /* data_alignment_factor */
"\t.byte 65\n" /* return_address_register (LR) */
"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 %d\n" /* DW_CFA_def_cfa */
"\t.align 2\n"
".LECIE0:\n\n",
CFRAME_SIZE);
/* DW_CFA_def_cfa */
"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
"\t.align 3\n"
".LECIE0:\n\n");
fprintf(ctx->fp,
".LSFDE0:\n" /* Frame Description Entry (FDE) */
"\t.long .LEFDE0-.LASFDE0\n" /* length */
".LASFDE0:\n"
"\t.long .Lframe0\n" /* CIE_ptr */
"\t.long .Lbegin\n" /* initial_location */
"\t.long %d\n" /* address_range */
"\t.byte 0xe\n\t.uleb128 %d\n" /* DW_CFA_def_cfa_offset */
/* DW_CFA_offset_extended_sf (TOC) */
"\t.byte 0x11\n\t.uleb128 2\n\t.sleb128 %d\n"
"\t.quad .Lbegin\n" /* initial_location */
"\t.quad %d\n" /* address_range */
/* DW_CFA_val_expression of size 9 for LR register */
"\t.byte 0x16\n\t.uleb128 65\n\t.uleb128 9\n"
"\t.byte 0x70\n\t.uleb128 1\n\t.sleb128 0\n" /* DW_OP_breg */
"\t.byte 0x06\n" /* DW_OP_deref */
"\t.byte 0x11\n\t.sleb128 16\n" /* DW_OP_consts */
"\t.byte 0x22\n" /* DW_OP_plus */
"\t.byte 0x06\n", /* DW_OP_deref */
(int)ctx->codesz, CFRAME_SIZE, 24 / -8);
/* DW_CFA_def_cfa_offset */
"\t.byte 0xe\n\t.uleb128 %d\n"
/* DW_CFA_offset_extended_sf $lr */
"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 %d\n"
/* DW_CFA_offset (TOC) */
"\t.byte 0x82\n\t.uleb128 %d\n",
(int)ctx->codesz, CFRAME_SIZE, 16/-8, (24-400)/-8);
for (i = 14; i <= 31; i++)
fprintf(ctx->fp,
"\t.byte %d\n\t.uleb128 %d\n" /* DW_CFA_offset from r14 to r31 */
"\t.byte %d\n\t.uleb128 %d\n", /* DW_CFA_offset from f14 to f31 */
0x80+i, 38+2*(31-i), 0x80+32+i, 2+2*(31-i));
// SAVE_GPR_ SAVE_FPR_
0x80+i, (112-400)/-8 + 14-i, 0x80+32+i, (256-400)/-8 + 14-i);
fprintf(ctx->fp,
"\t.align 2\n"
"\t.align 3\n"
".LEFDE0:\n\n");
break;
default: