[Bug rust/30330] GDB 13.1 no longer prints length of Rust slice wrappers

jistone at redhat dot com sourceware-bugzilla@sourceware.org
Tue Apr 11 18:52:39 GMT 2023


https://sourceware.org/bugzilla/show_bug.cgi?id=30330

--- Comment #2 from Josh Stone <jistone at redhat dot com> ---
Hmm, Rust 1.59 to 1.60 changed those member attributes.

1.59:

<3><1002>: Abbrev Number: 12 (DW_TAG_member)
    <1003>   DW_AT_name        : (indirect string, offset: 0xf63af): value
    <1007>   DW_AT_type        : <0x13ba>
    <100b>   DW_AT_alignment   : 1
    <100c>   DW_AT_data_member_location: 0

1.60:

<3><13a6>: Abbrev Number: 41 (DW_TAG_member)
    <13a7>   DW_AT_name        : (indirect string, offset: 0x105d4b): value
    <13ab>   DW_AT_type        : <0xb7>
    <13af>   DW_AT_byte_size   : 1
    <13b0>   DW_AT_bit_size    : 0
    <13b1>   DW_AT_bit_offset  : 8
    <13b2>   DW_AT_data_member_location: 0

> This structure does not really have a byte size of 0,

It doesn't have a *static* size at all -- it needs the reference's length.

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