[Bug bootstrap/86057] Use of mempcpy in libgcc/ libgcov-driver-system.c breaks bootstrap

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86057

--- Comment #9 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Thu Jun  7 04:21:35 2018
New Revision: 261260

URL: https://gcc.gnu.org/viewcvs?rev=261260&root=gcc&view=rev
Log:
Fix libgcov-driver-system bootstrap failure (PR bootstrap/86057).

2018-06-07  Martin Liska  <mliska@suse.cz>

        PR bootstrap/86057
        * libgcov-driver-system.c (replace_filename_variables): Use
        memcpy instead of mempcpy.
        (allocate_filename_struct): Do not allocate filename, allocate
        prefix and set it.
        (gcov_exit_open_gcda_file): Allocate memory for gf->filename
        here and properly copy content into it.
        * libgcov-driver.c (struct gcov_filename): Remove max_length
        field, change prefix from size_t into char *.
        (compute_summary): Do not calculate longest filename.
        (gcov_do_dump): Release memory of gf.filename after each file.
        * libgcov-util.c (compute_summary): Use new signature of
        compute_summary.
        (calculate_overlap): Likewise.

Modified:
    trunk/libgcc/ChangeLog
    trunk/libgcc/libgcov-driver-system.c
    trunk/libgcc/libgcov-driver.c
    trunk/libgcc/libgcov-util.c