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Make reading of line number info from LLVM-2.9-generated Dwarf3 work.

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git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11705
This commit is contained in:
Julian Seward 2011-04-21 08:55:51 +00:00
parent 9c2eb5a882
commit b1a118436a
1 changed files with 19 additions and 5 deletions
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24
coregrind/m_debuginfo/readdwarf.c
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@ -1079,6 +1079,9 @@ void read_unitinfo_dwarf2( /*OUT*/UnitInfo* ui,
/* TJH 27 Apr 10: in DWARF 4 lineptr (and loclistptr,macptr,
rangelistptr classes) use FORM_sec_offset which is 64 bits
in 64 bit DWARF and 32 bits in 32 bit DWARF. */
/* JRS 20 Apr 11: LLVM-2.9 encodes DW_AT_stmt_list using
FORM_addr rather than the FORM_data4 that GCC uses. Hence
handle FORM_addr too. */
switch( form ) {
/* Those cases extract the data properly */
case 0x05: /* FORM_data2 */ cval = *((UShort*)p); p +=2; break;
@ -1101,13 +1104,24 @@ void read_unitinfo_dwarf2( /*OUT*/UnitInfo* ui,
} else {
cval = *((UInt*)p); p += 4;
}; break;
/* TODO : Following ones just skip data - implement if you need */
case 0x01: /* FORM_addr */ p += addr_size; break;
case 0x03: /* FORM_block2 */ p += *((UShort*)p) + 2; break;
case 0x04: /* FORM_block4 */ p += *((UInt*)p) + 4; break;
case 0x07: /* FORM_data8 */ if (ui->dw64) cval = *((ULong*)p);
p += 8; break;
/* perhaps should assign unconditionally to cval? */
/* perhaps should assign
unconditionally to cval? */
case 0x01: /* FORM_addr */ if (addr_size == 4) {
cval = *(UInt*)p;
} else if (addr_size == 8) {
cval = *(ULong*)p;
} else {
/* wtf, Houston? */
}
p += addr_size; break;
/* TODO : Following ones just skip data - implement if you need */
case 0x03: /* FORM_block2 */ p += *((UShort*)p) + 2; break;
case 0x04: /* FORM_block4 */ p += *((UInt*)p) + 4; break;
case 0x09: /* FORM_block */ p += read_leb128U( &p ); break;
case 0x0a: /* FORM_block1 */ p += *p + 1; break;
case 0x0c: /* FORM_flag */ p++; break;