[Mesa-dev] [Bug 93103] llvm symbols leak through, cause trouble with software rendering in llvm-linked software

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93103

--- Comment #2 from Emil Velikov <emil.l.velikov at gmail.com> ---
Hmm I'm pretty sure that I removed all of those an year or two ago. 

And looking at the patches in said report, it seems that it was a problem on
their end -> they were not hiding the (should be) internal symbols.

The only thing that can remotely cause problems is that we dlopen(RTLD_GLOBAL)
the module which internally references LLVM. You can try the following patch,
although we cannot get it upstream without some serious work or we'll break a
lot of applications.



diff --git a/src/glx/dri_common.c b/src/glx/dri_common.c
index 8a56385..2c2eef6 100644
--- a/src/glx/dri_common.c
+++ b/src/glx/dri_common.c
@@ -103,7 +103,7 @@ driOpenDriver(const char *driverName)
    int len;

    /* Attempt to make sure libGL symbols will be visible to the driver */
-   glhandle = dlopen(GL_LIB_NAME, RTLD_NOW | RTLD_GLOBAL);
+   glhandle = dlopen(GL_LIB_NAME, RTLD_NOW | RTLD_LOCAL);

    libPaths = NULL;
    if (geteuid() == getuid()) {
@@ -131,14 +131,14 @@ driOpenDriver(const char *driverName)
       snprintf(realDriverName, sizeof realDriverName,
                "%.*s/tls/%s_dri.so", len, p, driverName);
       InfoMessageF("OpenDriver: trying %s\n", realDriverName);
-      handle = dlopen(realDriverName, RTLD_NOW | RTLD_GLOBAL);
+      handle = dlopen(realDriverName, RTLD_NOW | RTLD_LOCAL);
 #endif

       if (handle == NULL) {
          snprintf(realDriverName, sizeof realDriverName,
                   "%.*s/%s_dri.so", len, p, driverName);
          InfoMessageF("OpenDriver: trying %s\n", realDriverName);
-         handle = dlopen(realDriverName, RTLD_NOW | RTLD_GLOBAL);
+         handle = dlopen(realDriverName, RTLD_NOW | RTLD_LOCAL);
       }

       if (handle != NULL)

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