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The Call stack of ngx.re change #491
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local func = ngx.re.find
local info = debug.getinfo(func)
ngx.log(ngx.ERR, "Function source: ", info.source)
ngx.log(ngx.ERR, "Defined at line: ", info.linedefined)2024/12/12 17:37:24 [error] 1932901#1932901: *2578324 [lua] router.lua:565: find_api(): Function source: =[C], client: 10.34.55.32, server: baidu, request: "GET /dialing-test HTTP/1.1", host: "xxxx"
2024/12/12 17:37:24 [error] 1932901#1932901: *2578324 [lua] router.lua:566: find_api(): Defined at line: -1, client: 10.34.55.32, server:baidu, request: "GET /dialing-test HTTP/1.1", host: "xxxx"logs after adding compile parameters：
2024/12/12 16:59:41 [error] 678167#678167: *3892 [lua] router.lua:564: find_api(): Function source: @/usr/local/openresty/lualib/resty/core/regex.lua, client: 10.71.185.21, server: baidu, request: "GET /dialing-test HTTP/1.1", host: "xxxxx"
2024/12/12 16:59:41 [error] 678167#678167: *3892 [lua] router.lua:565: find_api(): Defined at line: 713, client: 10.71.185.21, server: baidu, request: "GET /dialing-test HTTP/1.1", host: "xxxxx"
The original ngx.re call link was ngx.re.find -->lua-nginx-module --> ngx_http_lua_ngx_re_find --> ngx_http_lua_ngx_re_match_helper
When compiling openresty, add the compile parameter --with-ld-opt /curl/lib/ -lcurl curl
The /lib/ directory contains the following files: libcurl.a libcurl.la libcurl.so libcurl.so.4 libcurl.so.4.3.0
./configure \ --prefix=/usr/local/openresty \ --with-ld-opt="-Wl,-rpath,/usr/local/openresty/luajit/lib \ -L/*/curl/lib/ -lcurl"Then the function call stack for ngx.re.find becomes
ngx.re.find() --> re_match_helper -->ngx_lua_ffi_exec_regex -->ngx_http_lua_ffi_exec_regex
ngx.re.find() in regex.lua that calls lua-resty-core.
Why is that? Why does curllib affect the underlying call logic?
Help, thank you very much