Messages in this thread | | | Subject | Re: [PATCH 5/5] lib: Add error string support to printks | From | Joe Perches <> | Date | Tue, 17 Sep 2013 22:36:50 -0700 |
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On Tue, 2013-09-17 at 18:08 -0500, danielfsantos@att.net wrote: > This adds an extension for the integral format specifier suffix of 'e', > so that the format %[duxXo]e will result in printing an number (as > before) in addition to a name and descrption for an error code, if such > support is enabled and a name and descrption is found. > > My initial thought was to use the glibc extension of '%m', but this > format specifier uses the value of libc's errno and adding a value > breaks gcc's printf parsing. I'm not convinced that the 'e' extension > is optimal, although there are only four instances of this pattern in > the kernel that would need to be changed. > > git grep -E '".*%[#0\ +\-]*[0-9]*[hljzt]*[idoxXu]e' > > Alternatively, 'E' was another thought for a suffix as well.
I'd much rather see another %p extension used instead of generating odd output given normal printf formats.
%pE might work
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