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 = -12700;
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//; $tls::locals = -12700;
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//; $tls::plocals = 0;
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//; $tls::local_clib = -10980;
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//; $tls::plocal_clib = 1720;
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//; $tls::__dontuse = -10980;
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//; $tls::p__dontuse = 1720;
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//; $tls::func = -9892;
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//; $tls::pfunc = 2808;
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//; $tls::saved_errno = -9888;
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//; $tls::psaved_errno = 2812;
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//; $tls::sa_flags = -9884;
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//; $tls::psa_flags = 2816;
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//; $tls::oldmask = -9880;
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//; $tls::poldmask = 2820;
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//; $tls::deltamask = -9876;
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//; $tls::pdeltamask = 2824;
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//; $tls::errno_addr = -9872;
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//; $tls::perrno_addr = 2828;
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//; $tls::sigmask = -9868;
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//; $tls::psigmask = 2832;
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//; $tls::sigwait_mask = -9864;
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//; $tls::psigwait_mask = 2836;
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//; $tls::altstack = -9860;
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//; $tls::paltstack = 2840;
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//; $tls::sigwait_info = -9848;
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//; $tls::psigwait_info = 2852;
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//; $tls::signal_arrived = -9844;
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//; $tls::psignal_arrived = 2856;
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//; $tls::will_wait_for_signal = -9840;
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//; $tls::pwill_wait_for_signal = 2860;
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//; $tls::__align = -9836;
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//; $tls::p__align = 2864;
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//; $tls::context = -9832;
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//; $tls::pcontext = 2868;
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//; $tls::thread_id = -9084;
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//; $tls::pthread_id = 3616;
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//; $tls::infodata = -9080;
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//; $tls::pinfodata = 3620;
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//; $tls::tid = -8932;
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//; $tls::ptid = 3768;
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//; $tls::_ctinfo = -8928;
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//; $tls::p_ctinfo = 3772;
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//; $tls::andreas = -8924;
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//; $tls::pandreas = 3776;
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//; $tls::wq = -8920;
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//; $tls::pwq = 3780;
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//; $tls::sig = -8892;
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//; $tls::psig = 3808;
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//; $tls::incyg = -8888;
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//; $tls::pincyg = 3812;
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//; $tls::spinning = -8884;
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//; $tls::pspinning = 3816;
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//; $tls::stacklock = -8880;
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//; $tls::pstacklock = 3820;
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//; $tls::stackptr = -8876;
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//; $tls::pstackptr = 3824;
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//; $tls::stack = -8872;
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//; $tls::pstack = 3828;
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//; $tls::initialized = -7848;
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//; $tls::pinitialized = 4852;
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//; __DATA__
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#define tls_locals (-12700)
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#define tls_plocals (0)
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#define tls_local_clib (-10980)
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#define tls_plocal_clib (1720)
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#define tls___dontuse (-10980)
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#define tls_p__dontuse (1720)
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#define tls_func (-9892)
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#define tls_pfunc (2808)
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#define tls_saved_errno (-9888)
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#define tls_psaved_errno (2812)
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#define tls_sa_flags (-9884)
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#define tls_psa_flags (2816)
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#define tls_oldmask (-9880)
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#define tls_poldmask (2820)
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#define tls_deltamask (-9876)
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#define tls_pdeltamask (2824)
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#define tls_errno_addr (-9872)
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#define tls_perrno_addr (2828)
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#define tls_sigmask (-9868)
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#define tls_psigmask (2832)
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#define tls_sigwait_mask (-9864)
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#define tls_psigwait_mask (2836)
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#define tls_altstack (-9860)
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#define tls_paltstack (2840)
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#define tls_sigwait_info (-9848)
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#define tls_psigwait_info (2852)
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#define tls_signal_arrived (-9844)
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#define tls_psignal_arrived (2856)
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#define tls_will_wait_for_signal (-9840)
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#define tls_pwill_wait_for_signal (2860)
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#define tls___align (-9836)
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#define tls_p__align (2864)
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#define tls_context (-9832)
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#define tls_pcontext (2868)
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#define tls_thread_id (-9084)
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#define tls_pthread_id (3616)
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#define tls_infodata (-9080)
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#define tls_pinfodata (3620)
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#define tls_tid (-8932)
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#define tls_ptid (3768)
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#define tls__ctinfo (-8928)
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#define tls_p_ctinfo (3772)
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#define tls_andreas (-8924)
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#define tls_pandreas (3776)
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#define tls_wq (-8920)
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#define tls_pwq (3780)
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#define tls_sig (-8892)
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#define tls_psig (3808)
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#define tls_incyg (-8888)
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#define tls_pincyg (3812)
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#define tls_spinning (-8884)
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#define tls_pspinning (3816)
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#define tls_stacklock (-8880)
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#define tls_pstacklock (3820)
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#define tls_stackptr (-8876)
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#define tls_pstackptr (3824)
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#define tls_stack (-8872)
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#define tls_pstack (3828)
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#define tls_initialized (-7848)
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#define tls_pinitialized (4852)
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