Custom Query (245 matches)

This code is courtesy of froloff and slightly modified by me.

Index: emxomf.smak
===================================================================
--- emxomf.smak	(revision 2592)
+++ emxomf.smak	(working copy)
@@ -8,6 +8,7 @@
 .TSRC	:= $(addprefix src/emxomf/,emxomf.c stabshll.c grow.c)
 .TCF	:= $(CFLAGS.DEF.VERSION)
 .TDEP	:= @O@libomflib$A
+.TLDF	:= -liberty
 include mkexe.smak
 
 .TARGET	:= emxomfar.exe
Index: stabshll.c
===================================================================
--- stabshll.c	(revision 2592)
+++ stabshll.c	(working copy)
@@ -35,6 +35,7 @@
 #include "grow.h"
 #include "stabshll.h"
 
+#include <demangle.h>
 
 /*******************************************************************************
 *   Defined Constants And Macros                                               *
@@ -3325,8 +3326,18 @@
     abort ();
   n = p - str;
 
-  /** @todo name demangling */
-  name = strpool_addn (str_pool, str, n);
+  {
+     char mangled[1024];
+     char* demangled;
+     memcpy(mangled, str, n);
+     mangled[n]= '\0';
+     demangled = cplus_demangle (mangled, DMGL_ANSI | DMGL_PARAMS);
+     if (demangled != NULL)
+      name = strpool_addn (str_pool, demangled, strlen(demangled));
+    else
+      name = strpool_addn (str_pool, str, n);
+  }
+
   proc_start_addr = symbol->n_value;
 
   /* now let's see if there is a memfunc for this name. */

_fcloseall (and probably others) fails (crashes) because of the __u.__rsem_ersatz member of FILE is 4 bytes too small. Thanks to froloff for pointing out the crash.

If process load module dynamically (dlopen) after that fork will fail.

I examine the situation a bit and divide it into 3 cases

1. process dlopen() module then forking. Child process failed during initial fork processing.
2. process dlopen() module, dlclose() module then forking. Parent process trapped during fork processing.
3. process dlopen() module, dlclose() module, dlopen() module again then forking. Parent process goes endless loop in forkParValidateModules() during fork processing.

I'll send testcase and libc logs via email.

Note. I didn't find code deregistering module from modules chain - conj procedure to __libc_ForkRegisterModule().