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| author | Mark Wielaard <mark@klomp.org> | 2017-11-26 17:51:11 +0100 |
|---|---|---|
| committer | Mark Wielaard <mark@klomp.org> | 2018-02-21 17:19:33 +0100 |
| commit | 8961f33e2a72a9430455cbb0368c71d22574dc3d (patch) | |
| tree | c9b7a9a9a5301f66a6b4c058ce7dddaef6488616 /libdw/dwarf_getattrs.c | |
| parent | eb11b0f15c0fd06aa8fcc59feba36b6b091f30f7 (diff) | |
| download | elfutils-8961f33e2a72a9430455cbb0368c71d22574dc3d.tar.gz | |
libdw: Handle DWARF5 DW_FORM_implicit_const. Add dwarf_getabbrevattr_data.
Handle the new DW_FORM_implicit_const. The value of this form is embedded
in the abbrev data (as sleb128) and not in the info DIE data. This also
adds a new function dwarf_getabbrevattr_data which allows getting any
data/value associated with a form. eu-readelf will use this new function
to show the DW_FORM_implicit_const value.
Signed-off-by: Mark Wielaard <mark@klomp.org>
Diffstat (limited to 'libdw/dwarf_getattrs.c')
| -rw-r--r-- | libdw/dwarf_getattrs.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/libdw/dwarf_getattrs.c b/libdw/dwarf_getattrs.c index 7f55fafc..50faf988 100644 --- a/libdw/dwarf_getattrs.c +++ b/libdw/dwarf_getattrs.c @@ -83,7 +83,10 @@ dwarf_getattrs (Dwarf_Die *die, int (*callback) (Dwarf_Attribute *, void *), if (remembered_attrp >= offset_attrp) { /* Fill in the rest. */ - attr.valp = (unsigned char *) die_addr; + if (attr.form == DW_FORM_implicit_const) + attr.valp = (unsigned char *) attrp; + else + attr.valp = (unsigned char *) die_addr; attr.cu = die->cu; /* Now call the callback function. */ @@ -104,6 +107,12 @@ dwarf_getattrs (Dwarf_Die *die, int (*callback) (Dwarf_Attribute *, void *), // __libdw_form_val_len will have done a bounds check. die_addr += len; + + if (attr.form == DW_FORM_implicit_const) + { + int64_t attr_value __attribute__((__unused__)); + get_sleb128_unchecked (attr_value, attrp); + } } } /* NOTREACHED */ |