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| author | Tom Tromey <tromey@adacore.com> | 2019-08-14 09:11:28 -0600 |
|---|---|---|
| committer | Tom Tromey <tromey@adacore.com> | 2019-08-15 07:42:21 -0600 |
| commit | c6778d00df0fbc7fe53801717eb934a5d7b9674a (patch) | |
| tree | 97a12845481ffc66f619df16df190856b2e2a988 /gdb | |
| parent | 9177214a228f7d0eb8543725287a6163993fbebf (diff) | |
| download | gdb-c6778d00df0fbc7fe53801717eb934a5d7b9674a.zip gdb-c6778d00df0fbc7fe53801717eb934a5d7b9674a.tar.gz gdb-c6778d00df0fbc7fe53801717eb934a5d7b9674a.tar.bz2 | |
Simplify write_inferior_memory
gdbserver's write_inferior_memory uses a static variable to avoid
memory leaks, and has a comment referring to the lack of cleanups.
This patch removes this comment and the code in favor of a
straightforward use of std::vector.
gdb/gdbserver/ChangeLog
2019-08-15 Tom Tromey <tromey@adacore.com>
* target.c (write_inferior_memory): Use std::vector.
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/gdbserver/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/gdbserver/target.c | 22 |
2 files changed, 9 insertions, 17 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index 2dda352..e4ad220 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,7 @@ +2019-08-15 Tom Tromey <tromey@adacore.com> + + * target.c (write_inferior_memory): Use std::vector. + 2019-08-06 Frank Ch. Eigler <fche@redhat.com> PR build/24886 diff --git a/gdb/gdbserver/target.c b/gdb/gdbserver/target.c index 25f91ee..2587d8a 100644 --- a/gdb/gdbserver/target.c +++ b/gdb/gdbserver/target.c @@ -150,23 +150,11 @@ int write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len) { - /* Lacking cleanups, there is some potential for a memory leak if the - write fails and we go through error(). Make sure that no more than - one buffer is ever pending by making BUFFER static. */ - static unsigned char *buffer = 0; - int res; - - if (buffer != NULL) - free (buffer); - - buffer = (unsigned char *) xmalloc (len); - memcpy (buffer, myaddr, len); - check_mem_write (memaddr, buffer, myaddr, len); - res = (*the_target->write_memory) (memaddr, buffer, len); - free (buffer); - buffer = NULL; - - return res; + /* Make a copy of the data because check_mem_write may need to + update it. */ + std::vector<unsigned char> buffer (myaddr, myaddr + len); + check_mem_write (memaddr, buffer.data (), myaddr, len); + return (*the_target->write_memory) (memaddr, buffer.data (), len); } /* See target/target.h. */ |