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* [binutils-gdb] Fix compiler warning in linux-namespaces.c
@ 2019-08-27 18:53 Christian Biesinger
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From: Christian Biesinger @ 2019-08-27 18:53 UTC (permalink / raw)
To: gdb-cvs
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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=550105b77914a8b06498318775b28e85c610b9a3
commit 550105b77914a8b06498318775b28e85c610b9a3
Author: Christian Biesinger <cbiesinger@google.com>
Date: Tue Aug 27 13:22:38 2019 -0500
Fix compiler warning in linux-namespaces.c
../../gdb/nat/linux-namespaces.c: In function âvoid mnsh_main(int)â:
../../gdb/nat/linux-namespaces.c:604:8: warning: âfdâ may be used uninitialized in this function [-Wmaybe-uninitialized]
close (fd);
~~~~~~^~~~
And the warning is correct -- mnsh_recv_message can return -1 and leave fd
uninitialized, and mnsh_main will still call close (fd) if that happens.
Initialize fd to -1 to avoid that.
gdb/ChangeLog:
2019-08-27 Christian Biesinger <cbiesinger@google.com>
* nat/linux-namespaces.c (mnsh_main): Initialize fd (to -1).
Diff:
---
gdb/ChangeLog | 4 ++++
gdb/nat/linux-namespaces.c | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c7d2dae..0028253 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2019-08-27 Christian Biesinger <cbiesinger@google.com>
+
+ * nat/linux-namespaces.c (mnsh_main): Initialize fd (to -1).
+
2019-08-27 Andrew Burgess <andrew.burgess@embecosm.com>
* cli/cli-utils.c (info_print_options_defs): Delete.
diff --git a/gdb/nat/linux-namespaces.c b/gdb/nat/linux-namespaces.c
index 503f755..e49bc1a 100644
--- a/gdb/nat/linux-namespaces.c
+++ b/gdb/nat/linux-namespaces.c
@@ -562,7 +562,7 @@ mnsh_main (int sock)
while (1)
{
enum mnsh_msg_type type;
- int fd, int1, int2;
+ int fd = -1, int1, int2;
char buf[PATH_MAX];
ssize_t size, response = -1;
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2019-08-27 18:53 [binutils-gdb] Fix compiler warning in linux-namespaces.c Christian Biesinger
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