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| author |   ckuethe <ckuethe@openbsd.org> | 2007-01-09 15:13:37 +0000 |
|---|---|---|
| committer | ckuethe <ckuethe@openbsd.org> | 2007-01-09 15:13:37 +0000 |
| commit | db13cdc66141a91c3f88c33dc9cb1051411bc7f6 (patch) | |
| tree | a93c2aeb30755ea21e27b7a6f670aa542fe38116 | |
| parent | typo (diff) | |
| download | wireguard-openbsd-db13cdc66141a91c3f88c33dc9cb1051411bc7f6.tar.xz wireguard-openbsd-db13cdc66141a91c3f88c33dc9cb1051411bc7f6.zip | |
Ignore "mapping symbols" like $a and $t. They seem to be an ARM-only
feature, used to indicate whether code is ARM or Thumb. Unfortunately
they confuse gprof, which outputs call graphs where every other function
is named "$a"... not very useful.
Rather than enumerating the different symbols, binutils ignores anything
beginning with '$', and that is what we will do here.
Thanks to Dale Rahn for useful tips along the way.
ok miod
| -rw-r--r-- | usr.bin/gprof/elf.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/usr.bin/gprof/elf.c b/usr.bin/gprof/elf.c index 35330312725..5a2381325c9 100644 --- a/usr.bin/gprof/elf.c +++ b/usr.bin/gprof/elf.c @@ -144,5 +144,14 @@ wantsym(const Elf_Sym *sym, const char *strtab) #endif return 0; +#ifdef __arm__ + /* ignore what gas calls "mapping symbols" */ + { + const char *c = strtab + sym->st_name; + if (c[0] == '$') + return 0; + } +#endif + return 1; } |