Mercurial > hg > nginx
comparison auto/os/linux @ 8675:d3747ba486e7 quic
Core: added interface to linux bpf() system call.
It contains wrappers for operations with BPF maps and for loading BPF programs.
| author | Vladimir Homutov <vl@nginx.com> |
|---|---|
| date | Tue, 15 Dec 2020 15:23:07 +0300 |
| parents | f7e79596baf2 |
| children | 7df607cb2d11 |
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| 8674:2c7f927f7999 | 8675:d3747ba486e7 |
|---|---|
| 206 | 206 |
| 207 ngx_include="sys/vfs.h"; . auto/include | 207 ngx_include="sys/vfs.h"; . auto/include |
| 208 | 208 |
| 209 | 209 |
| 210 CC_AUX_FLAGS="$cc_aux_flags -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64" | 210 CC_AUX_FLAGS="$cc_aux_flags -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64" |
| 211 | |
| 212 | |
| 213 # (E)BPF | |
| 214 | |
| 215 ngx_feature="BPF support" | |
| 216 ngx_feature_name="NGX_HAVE_BPF" | |
| 217 ngx_feature_run=no | |
| 218 ngx_feature_incs="#include <linux/bpf.h> | |
| 219 #include <sys/syscall.h>" | |
| 220 ngx_feature_path= | |
| 221 ngx_feature_libs= | |
| 222 ngx_feature_test=" | |
| 223 union bpf_attr attr = { 0 }; | |
| 224 /* only declare BPF support if all required features found */ | |
| 225 attr.map_flags = 0; | |
| 226 attr.map_type = BPF_MAP_TYPE_SOCKHASH; | |
| 227 syscall(__NR_bpf, 0, &attr, 0);" | |
| 228 | |
| 229 . auto/feature | |
| 230 | |
| 231 if [ $ngx_found = yes ]; then | |
| 232 BPF_FOUND=YES | |
| 233 | |
| 234 CORE_SRCS="$CORE_SRCS src/core/ngx_bpf.c" | |
| 235 CORE_DEPS="$CORE_DEPS src/core/ngx_bpf.h" | |
| 236 fi |