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2c2f090168
This initial commit has enough to make a new file system and print out it's structures. Signed-off-by: Zach Brown <zab@versity.com>
59 lines
1.7 KiB
Bash
Executable File
59 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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# can we find sparse? If not, we're done.
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which sparse > /dev/null 2>&1 || exit 0
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#
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# one of the problems with using sparse in userspace is that it picks up
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# things in system headers that we don't care about. We're willing to
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# take on the burden of filtering them out so that we can have it tell
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# us about problems in our code.
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#
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# system headers using __transparent_union__
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RE="^/.*error: ignoring attribute __transparent_union__"
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# we don't care if system headers have gcc attributes sparse doesn't
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# know about
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RE="$RE|error: attribute '__leaf__': unknown attribute"
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# yes, sparse, that's the size of memseting a 4 meg buffer all right
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RE="$RE|warning: memset with byte count of 4194304"
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#
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# don't filter out 'too many errors' here, it can signify that
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# sparse doesn't understand something and is throwing a *ton*
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# of useless errors before giving up and existing. Check
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# unfiltered sparse output.
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#
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#
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# I'm not sure this is needed.
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#
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search=$(gcc -print-search-dirs | awk '($1 == "install:"){print "-I" $2}')
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#
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# We're trying to use sparse against glibc headers which go wild trying to
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# use internal compiler macros to test features. We copy gcc's and give
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# them to sparse. But not __SIZE_TYPE__ 'cause sparse defines that one.
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#
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defines=".sparse.gcc-defines.h"
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gcc -dM -E -x c - < /dev/null | grep -v __SIZE_TYPE__ > $defines
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include="-include $defines"
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#
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# sparse doesn't seem to notice when it's on a 64bit host. It warns that
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# 64bit values don't fit in 'unsigned long' without this.
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#
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if grep -q "__LP64__ 1" $defines; then
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m64="-m64"
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else
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m64=""
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fi
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sparse $m64 $include $search/include "$@" 2>&1 | egrep -v "($RE)" | tee .sparse.output
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if [ -s .sparse.output ]; then
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exit 1
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else
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exit 0
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fi
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