Author: dim
Date: Wed Aug 29 18:49:41 2012
New Revision: 239872
URL: http://svn.freebsd.org/changeset/base/239872
Log:
Teach libdwarf about the DW_FORM_flag_present dwarf attribute, so
programs using libdwarf (such as ctfconvert) don't error out on files
containing the attribute.
MFC after: 2 weeks
Modified:
head/lib/libdwarf/dwarf.h
head/lib/libdwarf/dwarf_attrval.c
head/lib/libdwarf/dwarf_dump.c
head/lib/libdwarf/dwarf_init.c
Modified: head/lib/libdwarf/dwarf.h
==============================================================================
--- head/lib/libdwarf/dwarf.h Wed Aug 29 18:40:12 2012 (r239871)
+++ head/lib/libdwarf/dwarf.h Wed Aug 29 18:49:41 2012 (r239872)
@@ -184,6 +184,7 @@
#define DW_FORM_ref8 0x14
#define DW_FORM_ref_udata 0x15
#define DW_FORM_indirect 0x16
+#define DW_FORM_flag_present 0x19
#define DW_OP_addr 0x03
#define DW_OP_deref 0x06
Modified: head/lib/libdwarf/dwarf_attrval.c
==============================================================================
--- head/lib/libdwarf/dwarf_attrval.c Wed Aug 29 18:40:12 2012
(r239871)
+++ head/lib/libdwarf/dwarf_attrval.c Wed Aug 29 18:49:41 2012
(r239872)
@@ -101,6 +101,7 @@ dwarf_attrval_flag(Dwarf_Die die, uint64
} else {
switch (av->av_form) {
case DW_FORM_flag:
+ case DW_FORM_flag_present:
*valp = (Dwarf_Bool) av->u[0].u64;
break;
default:
Modified: head/lib/libdwarf/dwarf_dump.c
==============================================================================
--- head/lib/libdwarf/dwarf_dump.c Wed Aug 29 18:40:12 2012
(r239871)
+++ head/lib/libdwarf/dwarf_dump.c Wed Aug 29 18:49:41 2012
(r239872)
@@ -240,6 +240,8 @@ get_form_desc(uint32_t form)
return "DW_FORM_data8";
case DW_FORM_flag:
return "DW_FORM_flag";
+ case DW_FORM_flag_present:
+ return "DW_FORM_flag_present";
case DW_FORM_indirect:
return "DW_FORM_indirect";
case DW_FORM_ref1:
@@ -648,6 +650,7 @@ dwarf_dump_av(Dwarf_Die die, Dwarf_AttrV
case DW_FORM_data4:
case DW_FORM_data8:
case DW_FORM_flag:
+ case DW_FORM_flag_present:
printf("%llu", (unsigned long long) av->u[0].u64);
break;
case DW_FORM_ref1:
Modified: head/lib/libdwarf/dwarf_init.c
==============================================================================
--- head/lib/libdwarf/dwarf_init.c Wed Aug 29 18:40:12 2012
(r239871)
+++ head/lib/libdwarf/dwarf_init.c Wed Aug 29 18:49:41 2012
(r239872)
@@ -396,6 +396,10 @@ dwarf_init_attr(Dwarf_Debug dbg, Elf_Dat
avref.u[1].s = elf_strptr(dbg->dbg_elf,
dbg->dbg_s[DWARF_debug_str].s_shnum, avref.u[0].u64);
break;
+ case DW_FORM_flag_present:
+ /* This form has no value encoded in the DIE. */
+ avref.u[0].u64 = 1;
+ break;
default:
DWARF_SET_ERROR(error, DWARF_E_NOT_IMPLEMENTED);
ret = DWARF_E_NOT_IMPLEMENTED;
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