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maint: avoid static zero init in tools

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C guarantees that static variables are zero-initialized.  Some older
compilers (and also gcc -fno-zero-initialized-in-bss) create larger
binaries if you explicitly zero-initialize a static variable.

* tools/virsh-console.c (got_signal): Drop unused variable.
* tools/virsh-domain.c: Fix initialization.
* tools/virsh.c: Likewise.
* tools/virt-host-validate-common.c (virHostMsgWantEscape):
Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Eric Blake 2014-10-28 12:38:04 -06:00
parent 39871fce1a
commit 0585332430
4 changed files with 6 additions and 9 deletions
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5
tools/virsh-console.c
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@ -1,7 +1,7 @@
/*
* virsh-console.c: A dumb serial console client
*
* Copyright (C) 2007-2008, 2010-2013 Red Hat, Inc.
* Copyright (C) 2007-2008, 2010-2014 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -81,11 +81,9 @@ struct virConsole {
};
static int got_signal = 0;
static void
virConsoleHandleSignal(int sig ATTRIBUTE_UNUSED)
{
got_signal = 1;
}
@ -336,7 +334,6 @@ vshRunConsole(vshControl *ctl,
/* Trap all common signals so that we can safely restore the original
* terminal settings on STDIN before the process exits - people don't like
* being left with a messed up terminal ! */
got_signal = 0;
sigaction(SIGQUIT, &sighandler, &old_sigquit);
sigaction(SIGTERM, &sighandler, &old_sigterm);
sigaction(SIGINT, &sighandler, &old_sigint);

2
tools/virsh-domain.c
View File

@ -1582,7 +1582,7 @@ vshPrintJobProgress(const char *label, unsigned long long remaining,
fflush(stderr);
}
static volatile sig_atomic_t intCaught = 0;
static volatile sig_atomic_t intCaught;
static void vshCatchInt(int sig ATTRIBUTE_UNUSED,
siginfo_t *siginfo ATTRIBUTE_UNUSED,

4
tools/virsh.c
View File

@ -316,7 +316,7 @@ vshReportError(vshControl *ctl)
/*
* Detection of disconnections and automatic reconnection support
*/
static int disconnected = 0; /* we may have been disconnected */
static int disconnected; /* we may have been disconnected */
/*
* vshCatchDisconnect:
@ -2985,7 +2985,7 @@ static char *
vshReadlineOptionsGenerator(const char *text, int state)
{
static int list_index, len;
static const vshCmdDef *cmd = NULL;
static const vshCmdDef *cmd;
const char *name;
if (!state) {

4
tools/virt-host-validate-common.c
View File

@ -1,7 +1,7 @@
/*
* virt-host-validate-common.c: Sanity check helper APIs
*
* Copyright (C) 2012 Red Hat, Inc.
* Copyright (C) 2012, 2014 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -66,7 +66,7 @@ void virHostMsgCheck(const char *prefix,
static bool virHostMsgWantEscape(void)
{
static bool detectTty = true;
static bool wantEscape = false;
static bool wantEscape;
if (detectTty) {
if (isatty(STDOUT_FILENO))
wantEscape = true;