[Bug target/64606] New: multiple warnings in arm target code

[joel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64606

            Bug ID: 64606
           Summary: multiple warnings in arm target code
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: joel at gcc dot gnu.org

/users/joel/test-gcc/b-arm-rtems4.11-gcc/./gcc/xgcc
-B/users/joel/test-gcc/b-arm-rtems4.11-gcc/./gcc/ -nostdinc
-B/users/joel/test-gcc/b-arm-rtems4.11-gcc/arm-rtems4.11/newlib/ -isystem
/users/joel/test-gcc/b-arm-rtems4.11-gcc/arm-rtems4.11/newlib/targ-include
-isystem /users/joel/test-gcc/gcc/newlib/libc/include
-B/users/joel/test-gcc/install-head/arm-rtems4.11/bin/
-B/users/joel/test-gcc/install-head/arm-rtems4.11/lib/ -isystem
/users/joel/test-gcc/install-head/arm-rtems4.11/include -isystem
/users/joel/test-gcc/install-head/arm-rtems4.11/sys-include    -g -O2 -mthumb
-O2 -I../../../../gcc/libgcc/../newlib/libc/sys/rtems/include -g -O2 -DIN_GCC 
-DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition 
-isystem ./include   -fno-inline -g -DIN_LIBGCC2 -fbuilding-libgcc
-fno-stack-protector -Dinhibit_libc  -fno-inline -I. -I. -I../../.././gcc
-I../../../../gcc/libgcc -I../../../../gcc/libgcc/.
-I../../../../gcc/libgcc/../gcc -I../../../../gcc/libgcc/../include 
-DHAVE_CC_TLS  -o _fractunsUDAUDI.o -MT _fractunsUDAUDI.o -MD -MP -MF
_fractunsUDAUDI.dep -DL_fractuns -DFROM_UDA -DTO_UDI -c
../../../../gcc/libgcc/fixed-bit.c -fvisibility=hidden -DHIDE_EXPORTS
mv -f libunwind.visT libunwind.vis
../../../gcc/libgcc/config/arm/fp16.c:97:1: warning: no previous prototype for
'__gnu_h2f_internal' [-Wmissing-prototypes]
 __gnu_h2f_internal(unsigned short a, int ieee)
 ^
../../../gcc/libgcc/config/arm/fp16.c:122:1: warning: no previous prototype for
'__gnu_f2h_ieee' [-Wmissing-prototypes]
 __gnu_f2h_ieee(unsigned int a)
 ^
../../../gcc/libgcc/config/arm/fp16.c:128:1: warning: no previous prototype for
'__gnu_h2f_ieee' [-Wmissing-prototypes]
 __gnu_h2f_ieee(unsigned short a)
 ^
../../../gcc/libgcc/config/arm/fp16.c:134:1: warning: no previous prototype for
'__gnu_f2h_alternative' [-Wmissing-prototypes]
 __gnu_f2h_alternative(unsigned int x)
 ^
../../../gcc/libgcc/config/arm/fp16.c:140:1: warning: no previous prototype for
'__gnu_h2f_alternative' [-Wmissing-prototypes]
 __gnu_h2f_alternative(unsigned short a)
 ^
In file included from ../../../gcc/libgcc/config/arm/unwind-arm.c:143:0:
../../../gcc/libgcc/unwind-arm-common.inc: In function 'get_eit_entry':
../../../gcc/libgcc/unwind-arm-common.inc:245:29: warning: cast discards
'const' qualifier from pointer target type [-Wcast-qual]
       ucbp->pr_cache.ehtp = (_Unwind_EHT_Header *)&eitp->content;