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Fix not finding function symbols for hooking (#2292)

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Fixes no useful feedback about failing subcommand.
Fixes function hooks breaking when running under a path containing
spaces.

Replaced old usages with this function where possible.
Complex shell usages now use `execAndGetShell` which is equal to the
old function.
This commit is contained in:
outfoxxed
2023-05-16 13:39:14 -07:00
committed by GitHub
parent 78826c6d18
commit 642030f959
3 changed files with 25 additions and 5 deletions
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21
src/plugins/PluginAPI.cpp
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@@ -280,11 +280,11 @@ APICALL std::vector<SFunctionMatch> HyprlandAPI::findFunctionsByName(HANDLE hand
#endif
#ifdef __clang__
static const auto SYMBOLS = execAndGet(("llvm-nm -D -j " + FPATH.string()).c_str());
static const auto SYMBOLSDEMANGLED = execAndGet(("llvm-nm -D -j --demangle " + FPATH.string()).c_str());
static const auto SYMBOLS = execAndGet(("llvm-nm -D -j \"" + FPATH.string() + "\"").c_str());
static const auto SYMBOLSDEMANGLED = execAndGet(("llvm-nm -D -j --demangle \"" + FPATH.string() + "\"").c_str());
#else
static const auto SYMBOLS = execAndGet(("nm -D -j " + FPATH.string()).c_str());
static const auto SYMBOLSDEMANGLED = execAndGet(("nm -D -j --demangle=auto " + FPATH.string()).c_str());
static const auto SYMBOLS = execAndGet(("nm -D -j \"" + FPATH.string() + "\"").c_str());
static const auto SYMBOLSDEMANGLED = execAndGet(("nm -D -j --demangle=auto \"" + FPATH.string() + "\"").c_str());
#endif
auto demangledFromID = [&](size_t id) -> std::string {
@@ -301,6 +301,17 @@ APICALL std::vector<SFunctionMatch> HyprlandAPI::findFunctionsByName(HANDLE hand
return SYMBOLSDEMANGLED.substr(pos, SYMBOLSDEMANGLED.find('\n', pos + 1) - pos);
};
if (SYMBOLS.empty()) {
Debug::log(ERR, "Unable to search for function \"%s\": no symbols found in binary (is \"%s\" in path?)", name.c_str(),
#ifdef __clang__
"llvm-nm"
#else
"nm"
#endif
);
return {};
}
std::vector<SFunctionMatch> matches;
std::istringstream inStream(SYMBOLS);
@@ -319,4 +330,4 @@ APICALL std::vector<SFunctionMatch> HyprlandAPI::findFunctionsByName(HANDLE hand
}
return matches;
}
}