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authorChristopher Faylor <me@cgf.cx>2011-08-03 17:58:59 +0000
committerChristopher Faylor <me@cgf.cx>2011-08-03 17:58:59 +0000
commit2964913236ed6ec76b4dc5bab7412bc6868fdce0 (patch)
tree1da457539ed52f6e46873f28f41c548b1e5c7080
parentf0968c1e7eda1e949a938be187c631ff5ae868db (diff)
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* dll_init.cc: Use fabort in favor of api_fatal and fork_info->abort where
appropriate throughout. (fabort): Define. (dll_list::topsort): Don't print sorting information. Fix formatting. (dll_list::topsort_visit): Fix formatting. (dll_list::load_after_fork_impl): Perform comment fixups. * sigproc.cc (child_info_fork::abort): (for now?) Always print cause of fork failure. * include/sys/strace.h (strace_vprintf): Remove _STRACE_NOTALL when printing. We really do want to see this.
-rw-r--r--winsup/cygwin/ChangeLog13
-rw-r--r--winsup/cygwin/dll_init.cc84
-rw-r--r--winsup/cygwin/include/sys/strace.h2
-rw-r--r--winsup/cygwin/sigproc.cc2
4 files changed, 57 insertions, 44 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index a50cbc9..9813380 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,16 @@
+2011-08-03 Christopher Faylor <me.cygwin2011@cgf.cx>
+
+ * dll_init.cc: Use fabort in favor of api_fatal and fork_info->abort
+ where appropriate throughout.
+ (fabort): Define.
+ (dll_list::topsort): Don't print sorting information. Fix formatting.
+ (dll_list::topsort_visit): Fix formatting.
+ (dll_list::load_after_fork_impl): Perform comment fixups.
+ * sigproc.cc (child_info_fork::abort): (for now?) Always print cause of
+ fork failure.
+ * include/sys/strace.h (strace_vprintf): Remove _STRACE_NOTALL when
+ printing. We really do want to see this.
+
2011-08-03 Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
* cygtls.h (struct _local_storage): Add cw_timer member.
diff --git a/winsup/cygwin/dll_init.cc b/winsup/cygwin/dll_init.cc
index 6ea1728..bf56c45 100644
--- a/winsup/cygwin/dll_init.cc
+++ b/winsup/cygwin/dll_init.cc
@@ -28,6 +28,8 @@ details. */
extern void __stdcall check_sanity_and_sync (per_process *);
+#define fabort fork_info->abort
+
dll_list dlls;
muto dll_list::protect;
@@ -147,17 +149,17 @@ dll_list::alloc (HINSTANCE h, per_process *p, dll_type type)
else
{
if (d->p.data_start != p->data_start)
- fork_info->abort ("data segment start: parent(%p) != child(%p)",
- d->p.data_start, p->data_start);
+ fabort ("data segment start: parent(%p) != child(%p)",
+ d->p.data_start, p->data_start);
else if (d->p.data_end != p->data_end)
- fork_info->abort ("data segment end: parent(%p) != child(%p)",
- d->p.data_end, p->data_end);
+ fabort ("data segment end: parent(%p) != child(%p)",
+ d->p.data_end, p->data_end);
else if (d->p.bss_start != p->bss_start)
- fork_info->abort ("data segment start: parent(%p) != child(%p)",
- d->p.bss_start, p->bss_start);
+ fabort ("data segment start: parent(%p) != child(%p)",
+ d->p.bss_start, p->bss_start);
else if (d->p.bss_end != p->bss_end)
- fork_info->abort ("bss segment end: parent(%p) != child(%p)",
- d->p.bss_end, p->bss_end);
+ fabort ("bss segment end: parent(%p) != child(%p)",
+ d->p.bss_end, p->bss_end);
}
d->p = p;
}
@@ -256,9 +258,11 @@ dll_list::topsort ()
d = &start;
while ((d = d->next))
{
- debug_printf ("%W", d->modname);
- for (int i=1; i < -d->ndeps; i++)
- debug_printf ("-> %W", d->deps[i-1]->modname);
+#ifdef DEBUGGING
+ paranoid_printf ("%W", d->modname);
+ for (int i = 1; i < -d->ndeps; i++)
+ paranoid_printf ("-> %W", d->deps[i - 1]->modname);
+#endif
/* It would be really nice to be able to keep this information
around for next time, but we don't have an easy way to
@@ -294,8 +298,8 @@ dll_list::topsort_visit (dll* d, bool seek_tail)
if (d->ndeps > 0)
{
d->ndeps = -d->ndeps;
- for (long i=1; i < -d->ndeps; i++)
- topsort_visit (d->deps[i-1], false);
+ for (long i = 1; i < -d->ndeps; i++)
+ topsort_visit (d->deps[i - 1], false);
append (d);
}
@@ -378,8 +382,8 @@ reserve_at (const PWCHAR name, DWORD here, DWORD dll_base, DWORD dll_size)
MEMORY_BASIC_INFORMATION mb;
if (!VirtualQuery ((void *) here, &mb, sizeof (mb)))
- api_fatal ("couldn't examine memory at %08lx while mapping %W, %E",
- here, name);
+ fabort ("couldn't examine memory at %08lx while mapping %W, %E",
+ here, name);
if (mb.State != MEM_FREE)
return 0;
@@ -395,8 +399,8 @@ reserve_at (const PWCHAR name, DWORD here, DWORD dll_base, DWORD dll_size)
size = end - here;
if (!VirtualAlloc ((void *) here, size, MEM_RESERVE, PAGE_NOACCESS))
- api_fatal ("couldn't allocate memory %p(%d) for '%W' alignment, %E\n",
- here, size, name);
+ fabort ("couldn't allocate memory %p(%d) for '%W' alignment, %E\n",
+ here, size, name);
return here;
}
@@ -405,8 +409,8 @@ static void
release_at (const PWCHAR name, DWORD here)
{
if (!VirtualFree ((void *) here, 0, MEM_RELEASE))
- api_fatal ("couldn't release memory %p for '%W' alignment, %E\n",
- here, name);
+ fabort ("couldn't release memory %p for '%W' alignment, %E\n",
+ here, name);
}
/* Step 1: Reserve memory for all DLL_LOAD dlls. This is to prevent
@@ -423,8 +427,8 @@ dll_list::reserve_space ()
{
for (dll* d = dlls.istart (DLL_LOAD); d; d = dlls.inext ())
if (!VirtualAlloc (d->handle, d->image_size, MEM_RESERVE, PAGE_NOACCESS))
- fork_info->abort ("address space needed by '%W' (%08lx) is already occupied",
- d->modname, d->handle);
+ fabort ("address space needed by '%W' (%08lx) is already occupied",
+ d->modname, d->handle);
}
/* Reload DLLs after a fork. Iterates over the list of dynamically loaded
@@ -469,12 +473,13 @@ void dll_list::load_after_fork_impl (HANDLE parent, dll* d, int retries)
dll's protective reservation from step 1
*/
if (!retries && !VirtualFree (d->handle, 0, MEM_RELEASE))
- api_fatal ("unable to release protective reservation for %W (%08lx), %E",
- d->modname, d->handle);
+ fabort ("unable to release protective reservation for %W (%08lx), %E",
+ d->modname, d->handle);
HMODULE h = LoadLibraryExW (d->name, NULL, DONT_RESOLVE_DLL_REFERENCES);
if (!h)
- api_fatal ("unable to create interim mapping for %W, %E", d->name);
+ fabort ("unable to create interim mapping for %W, %E",
+ d->name);
if (h != d->handle)
{
sigproc_printf ("%W loaded in wrong place: %08lx != %08lx",
@@ -483,14 +488,14 @@ void dll_list::load_after_fork_impl (HANDLE parent, dll* d, int retries)
DWORD reservation = reserve_at (d->modname, (DWORD) h,
(DWORD) d->handle, d->image_size);
if (!reservation)
- api_fatal ("unable to block off %p to prevent %W from loading there",
- h, d->modname);
+ fabort ("unable to block off %p to prevent %W from loading there",
+ h, d->modname);
if (retries < DLL_RETRY_MAX)
load_after_fork_impl (parent, d, retries+1);
else
- fork_info->abort ("unable to remap %W to same address as parent (%08lx) - try running rebaseall",
- d->modname, d->handle);
+ fabort ("unable to remap %W to same address as parent (%08lx) - try running rebaseall",
+ d->modname, d->handle);
/* once the above returns all the dlls are mapped; release
the reservation and continue unwinding */
@@ -504,34 +509,29 @@ void dll_list::load_after_fork_impl (HANDLE parent, dll* d, int retries)
protective reservation (for well-behaved dlls) or unloading the
interim mapping (for rebased dlls) . The dll list is sorted in
dependency order, so we shouldn't pull in any additional dlls
- outside our control.
-
- It stinks that we can't invert the order of the initial LoadLibrary
- and FreeLibrary since Microsoft documentation seems to imply that
- should do what we want. However, once a library is loaded as
- above, the second LoadLibrary will not execute its startup code
- unless it is first unloaded. */
+ outside our control. */
for (dll *d = dlls.istart (DLL_LOAD); d; d = dlls.inext ())
{
if (d->handle == d->preferred_base)
{
if (!VirtualFree (d->handle, 0, MEM_RELEASE))
- api_fatal ("unable to release protective reservation for %W (%08lx), %E",
- d->modname, d->handle);
+ fabort ("unable to release protective reservation for %W (%08lx), %E",
+ d->modname, d->handle);
}
else
{
/* Free the library using our parent's handle: it's identical
- to ours our we wouldn't have gotten this far */
+ to ours or we wouldn't have gotten this far */
if (!FreeLibrary (d->handle))
- api_fatal ("unable to unload interim mapping of %W, %E", d->modname);
+ fabort ("unable to unload interim mapping of %W, %E",
+ d->modname);
}
HMODULE h = LoadLibraryW (d->name);
if (!h)
- api_fatal ("unable to map %W, %E", d->name);
+ fabort ("unable to map %W, %E", d->name);
if (h != d->handle)
- api_fatal ("unable to map %W to same address as parent: %p != %p",
- d->modname, d->handle, h);
+ fabort ("unable to map %W to same address as parent: %p != %p",
+ d->modname, d->handle, h);
}
}
diff --git a/winsup/cygwin/include/sys/strace.h b/winsup/cygwin/include/sys/strace.h
index 5f9ce76..89f2d50 100644
--- a/winsup/cygwin/include/sys/strace.h
+++ b/winsup/cygwin/include/sys/strace.h
@@ -120,7 +120,7 @@ void strace_printf (unsigned, const char *func, const char *, ...);
#define strace_vprintf(what, fmt, arg) \
((void) ({\
if ((_STRACE_ ## what & _STRACE_SYSTEM) || strace.active ()) \
- strace.vprntf((_STRACE_ ## what) | _STRACE_NOTALL, __PRETTY_FUNCTION__, fmt, arg); \
+ strace.vprntf((_STRACE_ ## what), __PRETTY_FUNCTION__, fmt, arg); \
0; \
}))
#endif /*NOSTRACE*/
diff --git a/winsup/cygwin/sigproc.cc b/winsup/cygwin/sigproc.cc
index fcd559b..db4c02f 100644
--- a/winsup/cygwin/sigproc.cc
+++ b/winsup/cygwin/sigproc.cc
@@ -944,7 +944,7 @@ child_info_fork::abort (const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
- strace_vprintf (SIGP, fmt, ap);
+ strace_vprintf (SYSTEM, fmt, ap);
ExitProcess (EXITCODE_FORK_FAILED);
}
if (retry > 0)