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ecore_drm2: Add code to dlopen & symlink needed libdrm functions

This commit is contained in:
Christopher Michael 2022-08-16 10:09:01 -04:00
parent 1e6df64525
commit ea124c0c66
1 changed files with 56 additions and 0 deletions
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56
src/lib/ecore_drm2/ecore_drm2.c
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@ -2,10 +2,59 @@
/* local variables */
static int _ecore_drm2_init_count = 0;
static void *_drm_lib = NULL;
/* external variables */
int _ecore_drm2_log_dom = -1;
/* local static functions */
static Eina_Bool
_ecore_drm2_link(void)
{
int i;
Eina_Bool fail = EINA_FALSE;
const char *drm_libs[] =
{
"libdrm.so.2",
"libdrm.so.1",
"libdrm.so.0",
"libdrm.so",
NULL,
};
#define SYM(lib, xx) \
do { \
sym_ ## xx = dlsym(lib, #xx); \
if (!(sym_ ## xx)) { \
fail = EINA_TRUE; \
} \
} while (0)
if (_drm_lib) return EINA_TRUE;
for (i = 0; drm_libs[i]; i++)
{
_drm_lib = dlopen(drm_libs[i], RTLD_LOCAL | RTLD_LAZY);
if (!_drm_lib) continue;
fail = EINA_FALSE;
/* TODO: Sym needed libdrm functions */
if (fail)
{
dlclose(_drm_lib);
_drm_lib = NULL;
}
else
break;
}
if (!_drm_lib) return EINA_FALSE;
return EINA_TRUE;
}
/* API functions */
EAPI int
ecore_drm2_init(void)
{
@ -39,8 +88,13 @@ ecore_drm2_init(void)
goto log_err;
}
if (!_ecore_drm2_link()) goto link_err;
return _ecore_drm2_init_count;
link_err:
eina_log_domain_unregister(_ecore_drm2_log_dom);
_ecore_drm2_log_dom = -1;
log_err:
elput_shutdown();
elput_err:
@ -64,6 +118,8 @@ ecore_drm2_shutdown(void)
if (--_ecore_drm2_init_count != 0) return _ecore_drm2_init_count;
dlclose(_drm_lib);
eina_log_domain_unregister(_ecore_drm2_log_dom);
_ecore_drm2_log_dom = -1;