[Bug build/10675] New: cli-cmds.c:323: error: ignoring return value of ‘getcwd’, declared with attribute warn_unused_result

[Bug build/10675] New: cli-cmds.c:323: error: ignoring return value of ‘getcwd’, declared with attribute warn_unused_result

[info at skierpage dot com]

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On Kubuntu 9.04 amd64 "Jaunty" after executing path/to/gdb/configure then make,
(and hacking to avoid a similar compiler error bug 10674 ), I get:

gcc -c -g -O2   -I. -I/home/skierpage/programs/gdb-6.8/gdb
-I/home/skierpage/programs/gdb-6.8/gdb/config
-DLOCALEDIR="\"/usr/local/share/locale\"" -DHAVE_CONFIG_H
-I/home/skierpage/programs/gdb-6.8/gdb/../include/opcode
-I/home/skierpage/programs/gdb-6.8/gdb/../readline/.. -I../bfd
-I/home/skierpage/programs/gdb-6.8/gdb/../bfd
-I/home/skierpage/programs/gdb-6.8/gdb/../include -I../libdecnumber
-I/home/skierpage/programs/gdb-6.8/gdb/../libdecnumber   -DMI_OUT=1 -DTUI=1 
-Wall -Wdeclaration-after-statement -Wpointer-arith -Wformat-nonliteral
-Wno-pointer-sign -Wno-unused -Wno-switch -Wno-char-subscripts -Werror
/home/skierpage/programs/gdb-6.8/gdb/cli/cli-cmds.c
cc1: warnings being treated as errors
/home/skierpage/programs/gdb-6.8/gdb/cli/cli-cmds.c: In function ‘pwd_command’:
/home/skierpage/programs/gdb-6.8/gdb/cli/cli-cmds.c:323: error: ignoring return
value of ‘getcwd’, declared with attribute warn_unused_result
make[2]: *** [cli-cmds.o] Error 1
make[2]: Leaving directory `/home/skierpage/programs/gdb-6.8/build/gdb'
make[1]: *** [all-gdb] Error 2
make[1]: Leaving directory `/home/skierpage/programs/gdb-6.8/build'
make: *** [all] Error 2

The offending line is 
  getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));

-- 
           Summary: cli-cmds.c:323: error: ignoring return value of
                    ‘getcwd’, declared with attribute warn_unused_result
           Product: gdb
           Version: 6.8
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: build
        AssignedTo: unassigned at sourceware dot org
        ReportedBy: info at skierpage dot com
                CC: gdb-prs at sourceware dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=10675

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[Bug build/10675] cli-cmds.c:323: error: ignoring return value of ‘getcwd’, declared with attribute warn_unused_result

[info at skierpage dot com]

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------- Additional Comments From info at skierpage dot com  2009-09-21 10:47 -------
I'm also getting this compiler warning/error in other places:

mi/mi-cmd-env.c:81: error: ignoring return value of ‘getcwd’, declared with
attribute warn_unused_result

gdb/main.c: In function ‘captured_main’:
gdb/main.c:191: error: ignoring return value of ‘getcwd’, declared with
attribute warn_unused_result

gdb/top.c: In function ‘gdb_init’:
gdb/top.c:1631: error: ignoring return value of ‘getcwd’, declared with
attribute warn_unused_result

gdb/utils.c: In function ‘internal_vproblem’:
gdb/utils.c:707: error: ignoring return value of ‘write’, declared with
attribute warn_unused_result

gdb/inflow.c: In function ‘new_tty’:
gdb/inflow.c:548: error: ignoring return value of ‘dup’, declared with attribute
warn_unused_result
gdb/inflow.c:553: error: ignoring return value of ‘dup’, declared with attribute
warn_unused_result
gdb/inflow.c:558: error: ignoring return value of ‘dup’, declared with attribute
warn_unused_result

FWIW, to blow past these compile errors I've surrounded the offending line with
something like:
  char *junk;
  junk = [offending line]

I haven't done anything to enforce such strict compiling, just configure and make.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=10675

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[Bug build/10675] cli-cmds.c:323: error: ignoring return value of ‘getcwd’, declared with attribute warn_unused_result

[tromey at redhat dot com]

------- Additional Comments From tromey at redhat dot com  2010-02-23 21:03 -------
This was fixed a while ago.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|6.8                         |7.0


http://sourceware.org/bugzilla/show_bug.cgi?id=10675

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