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shell: suppress "unused var/func" warnings on some configs

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2016-12-12 16:30:20 +01:00
parent 4f13a70507
commit b6afcc7819
2 changed files with 10 additions and 10 deletions
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12
shell/ash.c
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@ -11373,13 +11373,13 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs)
smallint quotef;
smallint dblquote;
smallint oldstyle;
smallint prevsyntax; /* syntax before arithmetic */
IF_SH_MATH_SUPPORT(smallint prevsyntax;) /* syntax before arithmetic */
#if ENABLE_ASH_EXPAND_PRMT
smallint pssyntax; /* we are expanding a prompt string */
#endif
int varnest; /* levels of variables expansion */
int arinest; /* levels of arithmetic expansion */
int parenlevel; /* levels of parens in arithmetic */
IF_SH_MATH_SUPPORT(int arinest;) /* levels of arithmetic expansion */
IF_SH_MATH_SUPPORT(int parenlevel;) /* levels of parens in arithmetic */
int dqvarnest; /* levels of variables expansion within double quotes */
IF_ASH_BASH_COMPAT(smallint bash_dollar_squote = 0;)
@ -11387,7 +11387,7 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs)
startlinno = g_parsefile->linno;
bqlist = NULL;
quotef = 0;
prevsyntax = 0;
IF_SH_MATH_SUPPORT(prevsyntax = 0;)
#if ENABLE_ASH_EXPAND_PRMT
pssyntax = (syntax == PSSYNTAX);
if (pssyntax)
@ -11395,8 +11395,8 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs)
#endif
dblquote = (syntax == DQSYNTAX);
varnest = 0;
arinest = 0;
parenlevel = 0;
IF_SH_MATH_SUPPORT(arinest = 0;)
IF_SH_MATH_SUPPORT(parenlevel = 0;)
dqvarnest = 0;
STARTSTACKSTR(out);

8
shell/hush.c
View File

@ -1574,9 +1574,8 @@ static sighandler_t install_sighandler(int sig, sighandler_t handler)
}
static void hush_exit(int exitcode) NORETURN;
static void fflush_and__exit(void) NORETURN;
static void restore_ttypgrp_and__exit(void) NORETURN;
static void restore_ttypgrp_and__exit(void) NORETURN;
static void restore_ttypgrp_and__exit(void)
{
/* xfunc has failed! die die die */
@ -1585,6 +1584,8 @@ static void restore_ttypgrp_and__exit(void)
hush_exit(xfunc_error_retval);
}
#if ENABLE_HUSH_JOB
/* Needed only on some libc:
* It was observed that on exit(), fgetc'ed buffered data
* gets "unwound" via lseek(fd, -NUM, SEEK_CUR).
@ -1598,14 +1599,13 @@ static void restore_ttypgrp_and__exit(void)
* and in `cmd` handling.
* If set as die_func(), this makes xfunc_die() exit via _exit(), not exit():
*/
static void fflush_and__exit(void) NORETURN;
static void fflush_and__exit(void)
{
fflush_all();
_exit(xfunc_error_retval);
}
#if ENABLE_HUSH_JOB
/* After [v]fork, in child: do not restore tty pgrp on xfunc death */
# define disable_restore_tty_pgrp_on_exit() (die_func = fflush_and__exit)
/* After [v]fork, in parent: restore tty pgrp on xfunc death */