[Bug other/32105] New: Compiler warning in gcc

[hjl at lucon dot org]

/export/gnu/src/gcc/gcc/boehm-gc/mark_rts.c:379: warning: function returns
address of local variable
/export/gnu/src/gcc/gcc/boehm-gc/os_dep.c:2700: warning: assignment from
incompatible pointer type
/export/gnu/src/gcc/gcc/boehm-gc/os_dep.c:560: warning: 'sigsetmask' is
deprecated (declared at /usr/include/signal.h:184)
/export/gnu/src/gcc/gcc/boehm-gc/os_dep.c:569: warning: 'sigsetmask' is
deprecated (declared at /usr/include/signal.h:184)
/export/gnu/src/gcc/gcc/gcc/config/i386/i386.md:18885: warning: operand 1
missing mode?
/export/gnu/src/gcc/gcc/gcc/config/i386/i386.md:18928: warning: operand 1
missing mode?
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/addtf3.c:36: warning: no
previous prototype for ‘__addtf3’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/divtf3.c:36: warning: no
previous prototype for ‘__divtf3’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/divtf3.c:38: warning:
‘R_e’ may be used uninitialized in this function
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/eqtf2.c:36: warning: no
previous prototype for ‘__eqtf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/extenddftf2.c:37: warning:
no previous prototype for ‘__extenddftf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/extendsftf2.c:37: warning:
no previous prototype for ‘__extendsftf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/extendxftf2.c:36: warning:
no previous prototype for ‘__extendxftf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/fixtfdi.c:36: warning: no
previous prototype for ‘__fixtfdi’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/fixtfsi.c:36: warning: no
previous prototype for ‘__fixtfsi’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/fixtfti.c:35: warning: no
previous prototype for ‘__fixtfti’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/fixunstfdi.c:36: warning:
no previous prototype for ‘__fixunstfdi’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/fixunstfsi.c:36: warning:
no previous prototype for ‘__fixunstfsi’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/fixunstfti.c:35: warning:
no previous prototype for ‘__fixunstfti’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/floatditf.c:36: warning:
no previous prototype for ‘__floatditf’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/floatsitf.c:36: warning:
no previous prototype for ‘__floatsitf’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/floattitf.c:35: warning:
no previous prototype for ‘__floattitf’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/floatunditf.c:37: warning:
no previous prototype for ‘__floatunditf’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/floatunditf.c:42: warning:
comparison of unsigned expression < 0 is always false
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/floatunsitf.c:37: warning:
no previous prototype for ‘__floatunsitf’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/floatunsitf.c:42: warning:
comparison of unsigned expression < 0 is always false
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/floatuntitf.c:35: warning:
no previous prototype for ‘__floatuntitf’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/floatuntitf.c:40: warning:
comparison of unsigned expression < 0 is always false
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/getf2.c:36: warning: no
previous prototype for ‘__getf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/letf2.c:36: warning: no
previous prototype for ‘__letf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/multf3.c:36: warning: no
previous prototype for ‘__multf3’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/multf3.c:38: warning:
‘R_e’ may be used uninitialized in this function
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/negtf2.c:36: warning: no
previous prototype for ‘__negtf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/subtf3.c:36: warning: no
previous prototype for ‘__subtf3’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/trunctfdf2.c:37: warning:
no previous prototype for ‘__trunctfdf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/trunctfsf2.c:37: warning:
no previous prototype for ‘__trunctfsf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/trunctfxf2.c:36: warning:
no previous prototype for ‘__trunctfxf2’
/export/gnu/src/gcc/gcc/libgcc/../gcc/config/soft-fp/unordtf2.c:36: warning: no
previous prototype for ‘__unordtf2’
/export/gnu/src/gcc/gcc/libgfortran/intrinsics/signal.c:173: warning: cast to
pointer from integer of different size
/export/gnu/src/gcc/gcc/libgfortran/intrinsics/signal.c:180: warning: cast to
pointer from integer of different size
/export/gnu/src/gcc/gcc/libgfortran/io/list_read.c:1471: warning: argument
'type' might be clobbered by 'longjmp' or 'vfork'
/export/gnu/src/gcc/gcc/libgfortran/runtime/main.c:177: warning: passing
argument 1 of 'free' discards qualifiers from pointer target type
/export/gnu/src/gcc/gcc/libiberty/argv.c:313: warning: unused variable
‘ret’
/export/gnu/src/gcc/gcc/libobjc/exception.c:103: warning: passing argument 2 of
'read_uleb128' from incompatible pointer type
/export/gnu/src/gcc/gcc/libobjc/exception.c:234: warning: passing argument 2 of
'read_uleb128' from incompatible pointer type
/export/gnu/src/gcc/gcc/libobjc/exception.c:279: warning: passing argument 2 of
'read_sleb128' from incompatible pointer type
/export/gnu/src/gcc/gcc/libobjc/exception.c:280: warning: passing argument 2 of
'read_sleb128' from incompatible pointer type
/export/gnu/src/gcc/gcc/libobjc/exception.c:94: warning: passing argument 2 of
'read_uleb128' from incompatible pointer type
/export/gnu/src/gcc/gcc/libobjc/../gcc/coretypes.h:80:1: warning: this is the
location of the previous definition
/export/gnu/src/gcc/gcc/libobjc/Object.m:124: warning: comparison of distinct
pointer types lacks a cast
/export/gnu/src/gcc/gcc/libobjc/sendmsg.c:44:1: warning: "rtx" redefined
/export/gnu/src/gcc/gcc/libobjc/thr.c:117: warning: 'noreturn' function does
return
/export/gnu/src/gcc/gcc/libstdc++-v3/../gcc/unwind-pe.h:74: warning: 'unsigned
int size_of_encoded_value(unsigned char)' defined but not used
/export/gnu/src/gcc/gcc/libstdc++-v3/libsupc++/eh_personality.cc:548: warning:
dereferencing type-punned pointer will break strict-aliasing rules
/export/gnu/src/gcc/gcc/libstdc++-v3/libsupc++/eh_personality.cc:555: warning:
dereferencing type-punned pointer will break strict-aliasing rules
/export/gnu/src/gcc/gcc/libstdc++-v3/libsupc++/eh_personality.cc:768: warning:
dereferencing type-punned pointer will break strict-aliasing rules
/export/gnu/src/gcc/gcc/libstdc++-v3/libsupc++/pointer_type_info.cc:49:
warning: dereferencing type-punned pointer will break strict-aliasing rules
./runtime-info.h:4: warning: 'struct_forward_array' defined but not used


-- 
           Summary: Compiler warning in gcc
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl at lucon dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32105