diff options
| -rw-r--r-- | gdb/gdbserver/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/gdbserver/linux-low.c | 8 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index a8cf78c..67bc149 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,9 @@ +2013-03-07 Jeremy Bennett <jeremy.bennett@embecosm.com> + + PR server/15236 + * linux-low.c (linux_write_memory): Return early success if LEN is + zero. + 2013-03-05 Corinna Vinschen <vinschen@redhat.de> * configure.srv: Add x86_64-*-cygwin* as target. diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c index c52cd2e..5f03628 100644 --- a/gdb/gdbserver/linux-low.c +++ b/gdb/gdbserver/linux-low.c @@ -4481,7 +4481,7 @@ linux_read_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's memory at MEMADDR. On failure (cannot write to the inferior) - returns the value of errno. */ + returns the value of errno. Always succeeds if LEN is zero. */ static int linux_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len) @@ -4500,6 +4500,12 @@ linux_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len) int pid = lwpid_of (get_thread_lwp (current_inferior)); + if (len == 0) + { + /* Zero length write always succeeds. */ + return 0; + } + if (debug_threads) { /* Dump up to four bytes. */ |