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author | Simon Marchi <simon.marchi@polymtl.ca> | 2020-04-02 15:49:06 -0400 |
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committer | Simon Marchi <simon.marchi@polymtl.ca> | 2020-04-02 15:49:06 -0400 |
commit | e0fc5c3fcbf0d9e425483c20dc14cf9cedeac3f4 (patch) | |
tree | a67587eb388735ad67659c1903f6118dacdc963d /gdb/gdb_bfd.c | |
parent | e2ff18a0a54f98c38f8d9b80c36faa7aacacf6d6 (diff) | |
download | gdb-e0fc5c3fcbf0d9e425483c20dc14cf9cedeac3f4.zip gdb-e0fc5c3fcbf0d9e425483c20dc14cf9cedeac3f4.tar.gz gdb-e0fc5c3fcbf0d9e425483c20dc14cf9cedeac3f4.tar.bz2 |
gdb: use bfd_get_section_contents to read section contents in is_linked_with_cygwin_dll
The function is_linked_with_cygwin_dll currently uses
gdb_bfd_map_section to get some section contents. This is not ideal
because that memory, which is only used in this function, can't be
released. Instead, it was suggested to use
bfd_get_full_section_contents.
However, bfd_get_full_section_contents returns a newly allocated buffer,
which is not very practical to use with C++ automatic memory management
constructs. I decided to make gdb_bfd_get_full_section_contents, a
small alternative to bfd_get_full_section_contents. It is a small
wrapper around bfd_get_section_contents which returns the full contents
of the section in a gdb::byte_vector.
gdb_bfd_get_full_section_contents could be used at many places that
already allocate a vector of the size of the section and then call
bfd_get_section_contents. I think these call sites can be updated over
time.
gdb/ChangeLog:
* gdb_bfd.h: Include gdbsupport/byte-vector.h.
(gdb_bfd_get_full_section_contents): New declaration.
* gdb_bfd.c (gdb_bfd_get_full_section_contents): New function.
* windows-tdep.c (is_linked_with_cygwin_dll): Use
gdb_bfd_get_full_section_contents.
Diffstat (limited to 'gdb/gdb_bfd.c')
-rw-r--r-- | gdb/gdb_bfd.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/gdb/gdb_bfd.c b/gdb/gdb_bfd.c index 5a6dee2..26262bf 100644 --- a/gdb/gdb_bfd.c +++ b/gdb/gdb_bfd.c @@ -926,7 +926,19 @@ gdb_bfd_requires_relocations (bfd *abfd) return gdata->needs_relocations; } - +/* See gdb_bfd.h. */ + +bool +gdb_bfd_get_full_section_contents (bfd *abfd, asection *section, + gdb::byte_vector *contents) +{ + bfd_size_type section_size = bfd_section_size (section); + + contents->resize (section_size); + + return bfd_get_section_contents (abfd, section, contents->data (), 0, + section_size); +} /* A callback for htab_traverse that prints a single BFD. */ |