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authorDoug Evans <dje@google.com>2010-04-26 17:38:07 +0000
committerDoug Evans <dje@google.com>2010-04-26 17:38:07 +0000
commitbc3b5632dc0331aa242680364e2bbb5b953bf65c (patch)
tree87029473d09c11eabff9d088c3107821310076c0 /gdb
parent119da4656825919121f24aac638a7022066ef56c (diff)
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* remote-utils.c (putpkt_binary_1): Call readchar instead of read.
Print received char after testing for error/eof instead of before. (input_interrupt): Tweak comment.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/gdbserver/ChangeLog6
-rw-r--r--gdb/gdbserver/remote-utils.c34
2 files changed, 22 insertions, 18 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index f77fbca..7d0f93a 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,9 @@
+2010-04-26 Doug Evans <dje@google.com>
+
+ * remote-utils.c (putpkt_binary_1): Call readchar instead of read.
+ Print received char after testing for error/eof instead of before.
+ (input_interrupt): Tweak comment.
+
2010-04-23 Doug Evans <dje@google.com>
* server.c (start_inferior): Print inferior argv if --debug.
diff --git a/gdb/gdbserver/remote-utils.c b/gdb/gdbserver/remote-utils.c
index ae04d13..2fccc67 100644
--- a/gdb/gdbserver/remote-utils.c
+++ b/gdb/gdbserver/remote-utils.c
@@ -80,6 +80,8 @@ typedef int socklen_t;
# define INVALID_DESCRIPTOR -1
#endif
+static int readchar (void);
+
/* A cache entry for a successfully looked-up symbol. */
struct sym_cache
{
@@ -691,8 +693,8 @@ putpkt_binary_1 (char *buf, int cnt, int is_notif)
int i;
unsigned char csum = 0;
char *buf2;
- char buf3[1];
char *p;
+ int cc;
buf2 = xmalloc (PBUFSIZ);
@@ -718,8 +720,6 @@ putpkt_binary_1 (char *buf, int cnt, int is_notif)
do
{
- int cc;
-
if (write (remote_desc, buf2, p - buf2) != p - buf2)
{
perror ("putpkt(write)");
@@ -746,29 +746,26 @@ putpkt_binary_1 (char *buf, int cnt, int is_notif)
fprintf (stderr, "putpkt (\"%s\"); [looking for ack]\n", buf2);
fflush (stderr);
}
- cc = read (remote_desc, buf3, 1);
- if (remote_debug)
- {
- fprintf (stderr, "[received '%c' (0x%x)]\n", buf3[0], buf3[0]);
- fflush (stderr);
- }
- if (cc <= 0)
- {
- if (cc == 0)
- fprintf (stderr, "putpkt(read): Got EOF\n");
- else
- perror ("putpkt(read)");
+ cc = readchar ();
+ if (cc < 0)
+ {
free (buf2);
return -1;
}
+ if (remote_debug)
+ {
+ fprintf (stderr, "[received '%c' (0x%x)]\n", cc, cc);
+ fflush (stderr);
+ }
+
/* Check for an input interrupt while we're here. */
- if (buf3[0] == '\003' && current_inferior != NULL)
+ if (cc == '\003' && current_inferior != NULL)
(*the_target->request_interrupt) ();
}
- while (buf3[0] != '+');
+ while (cc != '+');
free (buf2);
return 1; /* Success! */
@@ -798,7 +795,8 @@ putpkt_notif (char *buf)
/* Come here when we get an input interrupt from the remote side. This
interrupt should only be active while we are waiting for the child to do
- something. About the only thing that should come through is a ^C, which
+ something. Thus this assumes readchar:bufcnt is 0.
+ About the only thing that should come through is a ^C, which
will cause us to request child interruption. */
static void