JehanneOS/newlib
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* sigproc.cc (no_signals_available): Detect hwait_sig == INVALID_HANDLE_VALUE.

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(wait_sig): Set hwait_sig to INVALID_HANDLE_VALUE on __SIGEXIT.
* cygtls.cc (_cygtls::init_thread): Zero entire _my_tls structure and no more.
* cygtls.h (_my_tls::padding): Delete.
(CYGTLS_PADSIZE): Redefine concept of padding to mean padding at the end of the
stack.
* dcrt0.cc (initialize_main_tls): Change return to void.
* gentls_offsets: Treat const specially, too.  Keep going after a '}' is found.
Change negative offset calculation to use CYGTLS_PADSIZE.
* init.cc (_my_oldfunc): New variable.
(threadfunc_fe): Use stored tls value for oldfunc rather than blindly writing
to the stack.
(munge_threadfunc): Set oldfunc in tls.
(dll_entry): Initialize tls allocation.
* tlsoffsets.h: Regenerate.
This commit is contained in:
Christopher Faylor
2006-05-16 03:14:24 +00:00
parent a9e36321fd
commit 562adf7890
8 changed files with 105 additions and 85 deletions
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7
winsup/cygwin/init.cc
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@ -18,6 +18,8 @@ details. */
#include <ntdef.h>
#include "ntdll.h"
static DWORD _my_oldfunc;
int NO_COPY dynamically_loaded;
static char NO_COPY *search_for = (char *) cygthread::stub;
unsigned threadfunc_ix[8] __attribute__((section (".cygwin_dll_common"), shared));
@ -30,7 +32,7 @@ threadfunc_fe (VOID *arg)
{
(void)__builtin_return_address(1);
asm volatile ("andl $-16,%%esp" ::: "%esp");
_cygtls::call ((DWORD (*) (void *, void *)) (((char **) _tlsbase)[OLDFUNC_OFFSET]), arg);
_cygtls::call ((DWORD (*) (void *, void *)) TlsGetValue (_my_oldfunc), arg);
}
/* If possible, redirect the thread entry point to a cygwin routine which
@ -62,7 +64,7 @@ munge_threadfunc ()
search_for = NULL;
for (i = 0; threadfunc_ix[i]; i++)
ebp[threadfunc_ix[i]] = (char *) threadfunc_fe;
((char **) _tlsbase)[OLDFUNC_OFFSET] = threadfunc;
TlsSetValue (_my_oldfunc, threadfunc);
}
}
}
@ -145,6 +147,7 @@ dll_entry (HANDLE h, DWORD reason, void *static_load)
respawn_wow64_process ();
dll_crt0_0 ();
_my_oldfunc = TlsAlloc ();
break;
case DLL_PROCESS_DETACH:
break;