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| author | Sam Ravnborg <sam@ravnborg.org> | 2008-05-19 20:07:58 +0200 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2008-05-19 20:07:58 +0200 |
| commit | aab34ac8582303ef57b792710fc5dd5991477475 (patch) | |
| tree | e94e6dd86f1543db0b57cb200a97c3bfa35e54a7 | |
| parent | 1f5d3a6b6532e25a5cdf1f311956b2b03d343a48 (diff) | |
| download | kernel-common-aab34ac8582303ef57b792710fc5dd5991477475.tar.gz kernel-common-aab34ac8582303ef57b792710fc5dd5991477475.tar.bz2 kernel-common-aab34ac8582303ef57b792710fc5dd5991477475.zip | |
kbuild: filter away debug symbols from kernel symbols
Andi Kleen <andi@firstfloor.org>
reported that he saw a lot of symbols like this:
0000000000000b24 N DW.aio.h.903a6d92.2
0000000000000bce N DW.task_io_accounting.h.8d8de327.0
0000000000000bec N DW.hrtimer.h.c23659c6.0
in his System.map / kallsyms output.
Simple solution is to skip all debugging
symbols (they are marked 'N').
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Paulo Marques <pmarques@grupopie.com>
| -rw-r--r-- | scripts/kallsyms.c | 3 | ||||
| -rw-r--r-- | scripts/mksysmap | 3 |
2 files changed, 5 insertions, 1 deletions
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c index 5d20a2e24cd1..ad2434b26970 100644 --- a/scripts/kallsyms.c +++ b/scripts/kallsyms.c @@ -108,6 +108,9 @@ static int read_symbol(FILE *in, struct sym_entry *s) /* exclude also MIPS ELF local symbols ($L123 instead of .L123) */ else if (str[0] == '$') return -1; + /* exclude debugging symbols */ + else if (stype == 'N') + return -1; /* include the type field in the symbol name, so that it gets * compressed together */ diff --git a/scripts/mksysmap b/scripts/mksysmap index 4390fab9f5bd..6e133a0bae7a 100644 --- a/scripts/mksysmap +++ b/scripts/mksysmap @@ -32,6 +32,7 @@ # For System.map filter away: # a - local absolute symbols # U - undefined global symbols +# N - debugging symbols # w - local weak symbols # readprofile starts reading symbols when _stext is found, and @@ -40,5 +41,5 @@ # so we just ignore them to let readprofile continue to work. # (At least sparc64 has __crc_ in the middle). -$NM -n $1 | grep -v '\( [aUw] \)\|\(__crc_\)\|\( \$[adt]\)' > $2 +$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)' > $2 |