Messages in this thread | | | Subject | Re: [PATCH 1/2] selftests: x86: allow expansion of $(CC) | From | Shuah Khan <> | Date | Fri, 11 Feb 2022 10:13:15 -0700 |
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On 2/11/22 9:47 AM, David Laight wrote: > From: Shuah Khan >> Sent: 10 February 2022 20:52 >> >> On 2/10/22 12:06 PM, Muhammad Usama Anjum wrote: >>> CC can have multiple sub-strings like "ccache gcc". Erorr pops up if >>> it is treated as single string and double quote are used around it. >>> This can be fixed by removing the quotes and not treating CC a single >>> string. >>> >>> Fixes: e9886ace222e ("selftests, x86: Rework x86 target architecture detection") >>> Reported-by: "kernelci.org bot" <bot@kernelci.org> >>> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> >>> --- >>> tools/testing/selftests/x86/check_cc.sh | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/tools/testing/selftests/x86/check_cc.sh b/tools/testing/selftests/x86/check_cc.sh >>> index 3e2089c8cf549..aff2c15018b53 100755 >>> --- a/tools/testing/selftests/x86/check_cc.sh >>> +++ b/tools/testing/selftests/x86/check_cc.sh >>> @@ -7,7 +7,7 @@ CC="$1" >>> TESTPROG="$2" >>> shift 2 >>> >>> -if "$CC" -o /dev/null "$TESTPROG" -O0 "$@" 2>/dev/null; then >>> +if $CC -o /dev/null "$TESTPROG" -O0 "$@" 2>/dev/null; then >>> echo 1 >>> else >>> echo 0 >>> >> >> The intent is testing if $CC is set. Does this change work when >> $CC is not set? > > More by luck than judgement. Before and after. > If $CC might be empty you probably want: > > [ -n "$CC" ] && { echo 0; return; } > > The subject is also wrong. Should be "allow field splitting' of ${CC}. > (no brace or curly braces, not round ones.) >
Good points. It would be good enhancement to add the check - since the current logic doesn't handle the null CC
thanks, -- Shuah
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