2cd7eb7f60
* autoload.cc (SetThreadStackGuarantee): Import.
* cygtls.h (struct _cygtls): Replace thread_context with a ucontext_t
called context.
* exceptions.cc (exception::handle): Exit from process via signal_exit
in case sig_send returns from handling a stack overflow SIGSEGV.
Explain why.
(dumpstack_overflow_wrapper): Thread wrapper to create a stackdump
from another thread.
(signal_exit): Fix argument list to reflect three-arg signal handler.
In case we have to create a stackdump for a stack overflow condition,
do so from a separate thread. Explain why.
(sigpacket::process): Don't run signal_exit on alternate stack.
(altstack_wrapper): Wrapper function to do stack correction when
calling the signal handler on an alternate stack to handle a stack
overflow. Make sure to have lots of comments.
(_cygtls::call_signal_handler): Drop local context variable to reduce
stack pressure. Use this->context instead. Change inline assembler
to call altstack_wrapper.
(_cygtls::signal_debugger): Accommodate aforementioned change to
struct _cygtls.
* tlsoffset.h: Regenerate.
* tlsoffset64.h: Regenerate.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
126 lines
3.4 KiB
C
126 lines
3.4 KiB
C
//;# autogenerated: Do not edit.
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//; $tls::start_offset = -12800;
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//; $tls::locals = -12800;
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//; $tls::plocals = 0;
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//; $tls::local_clib = -10624;
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//; $tls::plocal_clib = 2176;
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//; $tls::__dontuse = -10624;
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//; $tls::p__dontuse = 2176;
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//; $tls::func = -8736;
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//; $tls::pfunc = 4064;
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//; $tls::saved_errno = -8728;
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//; $tls::psaved_errno = 4072;
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//; $tls::sa_flags = -8724;
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//; $tls::psa_flags = 4076;
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//; $tls::oldmask = -8720;
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//; $tls::poldmask = 4080;
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//; $tls::deltamask = -8712;
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//; $tls::pdeltamask = 4088;
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//; $tls::errno_addr = -8704;
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//; $tls::perrno_addr = 4096;
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//; $tls::sigmask = -8696;
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//; $tls::psigmask = 4104;
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//; $tls::sigwait_mask = -8688;
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//; $tls::psigwait_mask = 4112;
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//; $tls::altstack = -8680;
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//; $tls::paltstack = 4120;
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//; $tls::sigwait_info = -8656;
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//; $tls::psigwait_info = 4144;
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//; $tls::signal_arrived = -8648;
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//; $tls::psignal_arrived = 4152;
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//; $tls::will_wait_for_signal = -8640;
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//; $tls::pwill_wait_for_signal = 4160;
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//; $tls::__align = -8632;
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//; $tls::p__align = 4168;
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//; $tls::context = -8624;
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//; $tls::pcontext = 4176;
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//; $tls::thread_id = -7328;
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//; $tls::pthread_id = 5472;
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//; $tls::infodata = -7324;
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//; $tls::pinfodata = 5476;
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//; $tls::tid = -7176;
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//; $tls::ptid = 5624;
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//; $tls::_ctinfo = -7168;
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//; $tls::p_ctinfo = 5632;
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//; $tls::andreas = -7160;
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//; $tls::pandreas = 5640;
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//; $tls::wq = -7152;
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//; $tls::pwq = 5648;
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//; $tls::sig = -7104;
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//; $tls::psig = 5696;
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//; $tls::incyg = -7100;
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//; $tls::pincyg = 5700;
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//; $tls::spinning = -7096;
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//; $tls::pspinning = 5704;
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//; $tls::stacklock = -7092;
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//; $tls::pstacklock = 5708;
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//; $tls::stackptr = -7088;
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//; $tls::pstackptr = 5712;
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//; $tls::stack = -7080;
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//; $tls::pstack = 5720;
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//; $tls::initialized = -5032;
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//; $tls::pinitialized = 7768;
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//; __DATA__
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#define tls_locals (-12800)
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#define tls_plocals (0)
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#define tls_local_clib (-10624)
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#define tls_plocal_clib (2176)
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#define tls___dontuse (-10624)
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#define tls_p__dontuse (2176)
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#define tls_func (-8736)
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#define tls_pfunc (4064)
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#define tls_saved_errno (-8728)
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#define tls_psaved_errno (4072)
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#define tls_sa_flags (-8724)
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#define tls_psa_flags (4076)
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#define tls_oldmask (-8720)
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#define tls_poldmask (4080)
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#define tls_deltamask (-8712)
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#define tls_pdeltamask (4088)
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#define tls_errno_addr (-8704)
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#define tls_perrno_addr (4096)
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#define tls_sigmask (-8696)
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#define tls_psigmask (4104)
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#define tls_sigwait_mask (-8688)
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#define tls_psigwait_mask (4112)
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#define tls_altstack (-8680)
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#define tls_paltstack (4120)
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#define tls_sigwait_info (-8656)
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#define tls_psigwait_info (4144)
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#define tls_signal_arrived (-8648)
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#define tls_psignal_arrived (4152)
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#define tls_will_wait_for_signal (-8640)
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#define tls_pwill_wait_for_signal (4160)
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#define tls___align (-8632)
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#define tls_p__align (4168)
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#define tls_context (-8624)
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#define tls_pcontext (4176)
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#define tls_thread_id (-7328)
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#define tls_pthread_id (5472)
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#define tls_infodata (-7324)
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#define tls_pinfodata (5476)
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#define tls_tid (-7176)
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#define tls_ptid (5624)
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#define tls__ctinfo (-7168)
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#define tls_p_ctinfo (5632)
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#define tls_andreas (-7160)
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#define tls_pandreas (5640)
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#define tls_wq (-7152)
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#define tls_pwq (5648)
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#define tls_sig (-7104)
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#define tls_psig (5696)
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#define tls_incyg (-7100)
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#define tls_pincyg (5700)
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#define tls_spinning (-7096)
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#define tls_pspinning (5704)
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#define tls_stacklock (-7092)
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#define tls_pstacklock (5708)
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#define tls_stackptr (-7088)
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#define tls_pstackptr (5712)
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#define tls_stack (-7080)
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#define tls_pstack (5720)
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#define tls_initialized (-5032)
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#define tls_pinitialized (7768)
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