FYI, I just pushed the following:
commit 3d2d5dcc9c27b84dc2e5e9ed53be0f784a450042
Author: Nicolas Pitre <[email protected]>
Date: Tue Feb 2 00:05:42 2010 -0500
ARM semihosting: fix EOF handling with SYS_READ
The semihosting interface has a strange convention for read/write where
the unused amount of buffer must be returned. We failed to return the
total buffer size when the local read() call returned 0.
Signed-off-by: Nicolas Pitre <[email protected]>
diff --git a/src/target/arm_semihosting.c b/src/target/arm_semihosting.c
index c41c5a0..9b853d9 100644
--- a/src/target/arm_semihosting.c
+++ b/src/target/arm_semihosting.c
@@ -190,7 +190,7 @@ static int do_semihosting(struct target *target)
} else {
result = read(fd, buf, l);
armv4_5->semihosting_errno = errno;
- if (result > 0) {
+ if (result >= 0) {
retval = target_write_buffer(target, a,
result, buf);
if (retval != ERROR_OK) {
free(buf);
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