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ircd::mods::ldso: Add wrapper for dlinfo(3).

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This commit is contained in:
Jason Volk 2020-05-02 11:35:08 -07:00
parent 52ad7a29ad
commit 6f3e051563
2 changed files with 24 additions and 0 deletions
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13
include/ircd/mods/ldso.h
View file

@ -24,6 +24,8 @@ extern "C"
/// Platform-dependent interface on ELF+ld.so supporting compilations.
namespace ircd::mods::ldso
{
struct info;
IRCD_EXCEPTION(mods::error, error)
IRCD_EXCEPTION(error, not_found);
@ -58,3 +60,14 @@ namespace ircd::mods::ldso
// dlfcn suite
bool loaded(const string_view &name);
}
struct ircd::mods::ldso::info
{
string_view fname;
const void *fbase {nullptr};
string_view sname;
const void *saddr {nullptr};
info(const void *const &addr);
info() = default;
};

11
ircd/mods_ldso.cc
View file

@ -22,6 +22,17 @@
//
#if defined(HAVE_DLFCN_H)
ircd::mods::ldso::info::info(const void *const &addr)
{
::Dl_info info;
syscall(::dladdr, addr, &info);
fname = info.dli_fname;
fbase = info.dli_fbase;
sname = info.dli_sname;
saddr = info.dli_saddr;
}
bool
ircd::mods::ldso::loaded(const string_view &name_)
try