On Wed, Jan 21, 2004 at 11:09:16PM +0100, Marc Olzheim wrote:
> On Wed, Jan 21, 2004 at 10:13:44PM +0100, Marc Olzheim wrote:
> > Could someone tell me ?
>
> Erhm... For some clue what this is about:
> http://www.mail-archive.com/[EMAIL PROTECTED]/msg44893.html
Found it out already, shouldn't be a problem. A new thread doesn't
expect to find anything in ebp, so it isn't an issue.
Daniel Eischen proposed a simpler patch, which does the same trick...
Marc
--- /usr/src/lib/libc_r/uthread/pthread_private.h Thu Jan 22 11:06:15 2004
+++ /usr/src/lib/libc_r/uthread/pthread_private.h Thu Jan 22 11:08:57 2004
@@ -86,7 +86,10 @@
fdata = (char *) (ucp)->uc_mcontext.mc_fpstate; \
__asm__("frstor %0": :"m"(*fdata)); \
} while (0)
-#define SET_RETURN_ADDR_JB(jb, ra) (jb)[0]._jb[0] = (int)(ra)
+#define SET_RETURN_ADDR_JB(jb, ra) do { \
+ (jb)[0]._jb[0] = (int)(ra); \
+ (jb)[0]._jb[3] = 0; \
+} while(0)
#elif defined(__amd64__)
#define GET_STACK_JB(jb) ((unsigned long)((jb)[0]._jb[2]))
#define GET_STACK_SJB(sjb) ((unsigned long)((sjb)[0]._sjb[2]))
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