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137df1189d
Fix too eager assumption that SHT_GNU_verdef ELF section is going to be
present whenever binary has SHT_GNU_versym section. It seems like either
SHT_GNU_verdef or SHT_GNU_verneed can be used, so failing on missing
SHT_GNU_verdef actually breaks use cases in production.
One specific reported issue, which was used to manually test this fix,
was trying to attach to `readline` function in BASH binary.
Fixes:
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.. | ||
api | ||
bpf | ||
perf | ||
subcmd | ||
symbol | ||
thermal | ||
argv_split.c | ||
bitmap.c | ||
ctype.c | ||
find_bit.c | ||
hweight.c | ||
list_sort.c | ||
rbtree.c | ||
slab.c | ||
str_error_r.c | ||
string.c | ||
vsprintf.c | ||
zalloc.c |