Dumping every object file for every symbol is too heavy.
Use a temporary storage.
Before:
$ rm -rf master && make defconfig O=master
$ time make EXTRA_CFLAGS=-g O=master
[...]
real 2m24.063s
user 1m16.985s
sys 1m46.372s
After:
$ rm -rf master && make defconfig O=master
$ time make EXTRA_CFLAGS=-g O=master
[...]
real 1m37.110s
user 0m49.417s
sys 0m51.803s
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
35860849cf