dynamic-linking

问题 I'd like to get function's address by name. For example, currently I am using dlsym : unsigned long get_func_addr(const char *func_name) { return (unsigned long)dlsym(NULL, func_name); } However, dlsym only works for extern function. It won't work for static function. I know there could multiple static functions with same name in different files. But I need to at least get one static function's address with the name. Sometime static function will be inlned. But it's OK if C file is compiled

问题 I'd like to get function's address by name. For example, currently I am using dlsym : unsigned long get_func_addr(const char *func_name) { return (unsigned long)dlsym(NULL, func_name); } However, dlsym only works for extern function. It won't work for static function. I know there could multiple static functions with same name in different files. But I need to at least get one static function's address with the name. Sometime static function will be inlned. But it's OK if C file is compiled

问题 I'm setting up my Android app to support email authentication and as part of the task I need to create a dynamic link, which I did in the Firebase console. However, when I tested the link (https://chiaramail.page.link/.well-known/assetlinks.json, I just got back empty data ("[]"). Is there something else that needs to happen? 回答1: I had the same issue. Actually it is because, you need to provide SHA256 instead of SAH1 to implement dynamic link to your project. I tried to add it with my

问题 I have implemented the function for generating Firebase iOS dynamic link with only my deep link, bundle id and app store id (using Whatsapp as testing case) in my server. I can trigger the redirection when the app is installed (reading the deep link). However, deep link is always used for redirection when the app is not yet installed. Thus the app store ID is never triggered. Is there any possible reason behind? 回答1: Couple ideas that may help debug the case. Behavior of the Firebase Dynamic

问题 I have implemented the function for generating Firebase iOS dynamic link with only my deep link, bundle id and app store id (using Whatsapp as testing case) in my server. I can trigger the redirection when the app is installed (reading the deep link). However, deep link is always used for redirection when the app is not yet installed. Thus the app store ID is never triggered. Is there any possible reason behind? 回答1: Couple ideas that may help debug the case. Behavior of the Firebase Dynamic

问题 The OS X dynamic loader often gives errors like Symbol not found: <some symbol name> Referenced from: <lib location> Expected in: flat namespace If you search for the error you'll find a ton of errors that have it. I understand roughly that the problem is an incorrect linking, but none of the answers explain what "flat namespace" means here, exactly. 回答1: Disclaimer: This answer only applies to macOS 10.4 and higher. E.g. In previous versions of 'OSX' flat-namespaces were the default. And on

问题 The OS X dynamic loader often gives errors like Symbol not found: <some symbol name> Referenced from: <lib location> Expected in: flat namespace If you search for the error you'll find a ton of errors that have it. I understand roughly that the problem is an incorrect linking, but none of the answers explain what "flat namespace" means here, exactly. 回答1: Disclaimer: This answer only applies to macOS 10.4 and higher. E.g. In previous versions of 'OSX' flat-namespaces were the default. And on

问题 I always have problems when building libraries and linking them, so I hope someone can give me a hand. I downloaded libtorrent from here and I've built it like they explain here in the building with autotools section (skipping step 1). The building process was successfull I think, but when I did make check the output was: ============================================================================ Testsuite summary for libtorrent-rasterbar 1.0.5 ===============================================

问题 I am trying to create and use a .dylib file using gcc. I was going through the tutorial here with my set-up but it does not seem to be working. My directory structure is as follows: src hellomake.c hellofunc.c inc hellomake.h lib libhellomake.dylib I am using the code from here. I tried to compile according to the tutorial with the following gcc -dynamiclib -o lib/libhellomake.dylib src/hellofunc.c -Iinc gcc -Llib -lhellomake -o hellomakesl src/hellomake.c The first command succeeds, and when

问题 I read this documentation article about library and framework linking and the section below drew my attention: ... an Optional framework will be loaded only if needed. The initial load of the application will be faster if a large library that is never needed is designated as Optional. So I'm asking why wouldn't I set all frameworks as Optional , if they will load when necessary? What would be the drawback? 回答1: Using optional libraries requires additional code as it makes use of weak linking: