Re: Lists and aliasing (Re: Freeze on 27 February)

[Lennart Sorensen]

On Thu, Feb 23, 2012 at 12:43:08PM -0500, Lennart Sorensen wrote:
> gcc-4.6 -DHAVE_CONFIG_H -I. -I../..  -Wall -W -I./include -DGRUB_UTIL=1 
> -DGRUB_LIBDIR=\"/usr/lib/grub\" -DLOCALEDIR=\"/usr/share/locale\"  
> -DGRUB_MACHINE_EMU=1 -DGRUB_MACHINE=POWERPC_EMU -DGRUB_TARGET_CPU_POWERPC=1 
> -DGRUB_FILE=\"grub-core/disk/diskfilter.c\" -I. -I../.. -I. -I../.. 
> -I../../include -I./include  -I./grub-core/gnulib -I../../grub-core/gnulib    
>             -g -Wall -O2 -Wall -W -Wshadow -Wold-style-declaration 
> -Wold-style-definition -Wpointer-arith -Wundef -Wextra -Waddress 
> -Warray-bounds -Wattributes -Wbuiltin-macro-redefined -Wcast-align 
> -Wchar-subscripts -Wclobbered -Wcomment -Wcoverage-mismatch -Wdeprecated 
> -Wdeprecated-declarations -Wdisabled-optimization -Wdiv-by-zero -Wempty-body 
> -Wendif-labels -Wfloat-equal -Wformat-contains-nul -Wformat-extra-args 
> -Wformat-security -Wformat-y2k -Wignored-qualifiers -Wimplicit 
> -Wimplicit-function-declaration -Wimplicit-int -Winit-self 
> -Wint-to-pointer-cast -Winvalid-pch -Wunsafe-loop-optimizations -Wlogical-op 
> -Wmain -Wmissing-braces -Wmissing-field-ini
> tializers -Wmissing-format-attribute -Wmissing-noreturn -Wmudflap -Wmultichar 
> -Wnonnull -Woverflow -Wpacked-bitfield-compat -Wparentheses -Wpointer-arith 
> -Wpointer-to-int-cast -Wreturn-type -Wsequence-point -Wshadow -Wsign-compare 
> -Wstrict-aliasing -Wswitch -Wsync-nand -Wtrigraphs  -Wtype-limits -Wundef 
> -Wuninitialized -Wunknown-pragmas -Wunused -Wunused-function -Wunused-label 
> -Wunused-parameter -Wunused-value  -Wunused-variable -Wvariadic-macros 
> -Wvolatile-register-var -Wwrite-strings -Wmissing-parameter-type 
> -Wnested-externs -Wstrict-prototypes -Wpointer-sign -Werror  -Wno-undef 
> -Wno-sign-compare -Wno-unused -Wno-unused-parameter -Wno-redundant-decls 
> -Wno-unreachable-code -Wno-conversion -Wno-old-style-definition 
> -Wno-unsafe-loop-optimizations                -c -o 
> grub-core/disk/libgrubkern_a-diskfilter.o `test -f 
> 'grub-core/disk/diskfilter.c' || echo '../../'`grub-core/disk/diskfilter.c
> ../../grub-core/disk/diskfilter.c: In function 'insert_array':
> ../../grub-core/disk/diskfilter.c:975:14: error: declaration of 'disk' 
> shadows a parameter [-Werror=shadow]
> ../../grub-core/disk/diskfilter.c:953:27: error: shadowed declaration is here 
> [-Werror=shadow]

OK just as an update, with a current bzr checkout I get:

gcc-4.4 -DHAVE_CONFIG_H -I. -I../../../grub-core -I..  -Wall -W 
-I../../../include -I../include  -DGRUB_MACHINE_EMU=1 
-DGRUB_MACHINE=POWERPC_EMU -DGRUB_TARGET_CPU_POWERPC=1 -m32 
-DGRUB_FILE=\"normal/charset.c\" -I. -I../../../grub-core -I.. -I../../.. 
-I../../../include -I../include   -I../../../grub-core/lib/posix_wrap   -Os 
-Wall -W -Wshadow -Wold-style-declaration -Wold-style-definition 
-Wpointer-arith -Wundef -Wextra -Waddress -Warray-bounds -Wattributes 
-Wbuiltin-macro-redefined -Wcast-align -Wchar-subscripts -Wclobbered -Wcomment 
-Wcoverage-mismatch -Wdeprecated -Wdeprecated-declarations 
-Wdisabled-optimization -Wdiv-by-zero -Wempty-body -Wendif-labels -Wfloat-equal 
-Wformat-contains-nul -Wformat-extra-args -Wformat-security -Wformat-y2k 
-Wignored-qualifiers -Wimplicit -Wimplicit-function-declaration -Wimplicit-int 
-Winit-self -Wint-to-pointer-cast -Winvalid-pch -Wunsafe-loop-optimizations 
-Wlogical-op -Wmain -Wmissing-braces -Wmissing-field-initializers 
-Wmissing-format-attribute -Wmissing-noreturn -Wmudflap -Wmultichar -Wnonnull 
-Woverflow -Wpacked-bitfield-compat -Wparentheses -Wpointer-arith 
-Wpointer-to-int-cast -Wreturn-type -Wsequence-point -Wshadow -Wsign-compare 
-Wstrict-aliasing -Wswitch -Wsync-nand -Wtrigraphs  -Wtype-limits -Wundef 
-Wuninitialized -Wunknown-pragmas -Wunused -Wunused-function -Wunused-label 
-Wunused-parameter -Wunused-value  -Wunused-variable -Wvariadic-macros 
-Wvolatile-register-var -Wwrite-strings -Wmissing-parameter-type 
-Wnested-externs -Wstrict-prototypes -Wpointer-sign -g -Wredundant-decls 
-Wmissing-prototypes -Wmissing-declarations -fno-dwarf2-cfi-asm 
-fno-asynchronous-unwind-tables -m32 -fno-stack-protector -Werror 
-DUSE_ASCII_FAILBACK=1 -DHAVE_UNIFONT_WIDTHSPEC=1         -ffreestanding 
-fno-builtin -Wno-redundant-decls   -c -o normal/normal_module-charset.o `test 
-f 'normal/charset.c' || echo '../../../grub-core/'`normal/charset.c
cc1: warnings being treated as errors
../../../grub-core/normal/charset.c: In function 
'grub_bidi_line_logical_to_visual':
../../../grub-core/normal/charset.c:737: error: cannot optimize possibly 
infinite loops

-- 
Len Sorensen