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Andrew Burgess 75b2eb97a4 gdb: call update_thread_list for $_inferior_thread_count function
I noticed that sometimes the value returned by $_inferior_thread_count
can become out of sync with the actual thread count of the inferior,
and will disagree with the number of threads reported by 'info
threads'.  This commit fixes this issue.

The cause of the problem is that 'info threads' includes a call to
update_thread_list, this can be seen in print_thread_info_1 in
thread.c, while $_inferior_thread_count doesn't include a similar
call, see the function inferior_thread_count_make_value also in
thread.c.

Of course, this is only a problem when GDB is running on a target that
relies on update_thread_list calls to learn about new threads,
e.g. remote or extended-remote targets.  Native targets generally
learn about new threads as soon as they appear and will not have this
problem.

I ran into this issue when writing a test for the next commit which
uses inferior function calls to add an remove threads from an
inferior.  But for testing I've made use of non-stop mode and
asynchronous inferior execution; by reading the inferior state I can
know when a new thread has been created, at which point I can print
$_inferior_thread_count while the inferior is still running.  This is
important, if I stop the inferior then GDB will pass through an
update_thread_list call in the normal stop code, which will
synchronise the thread list, after which $_inferior_thread_count will
report the correct value.

With this change in place $_inferior_thread_count is now correct.
2023-11-08 13:28:09 +00:00
bfd ld: print branch fixups into the map file for ppc elf targets 2023-11-08 09:07:02 +01:00
binutils [readelf] Handle unknown name of main in .gdb_index section 2023-10-24 12:35:08 +02:00
config
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gas gas: S_GET_{NAME,SEGMENT}() don't alter their input symbol 2023-11-08 09:29:39 +01:00
gdb gdb: call update_thread_list for $_inferior_thread_count function 2023-11-08 13:28:09 +00:00
gdbserver Remove EXTERN_C and related defines 2023-11-06 20:31:12 -07:00
gdbsupport Remove EXTERN_C and related defines 2023-11-06 20:31:12 -07:00
gnulib
gold
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gprofng gprofng: remove dependency on help2man 2023-11-01 19:25:06 -07:00
include aarch64: Add arch support for LSE128 extension 2023-11-07 21:54:19 +00:00
intl
ld ld: print branch fixups into the map file for ppc elf targets 2023-11-08 09:07:02 +01:00
libbacktrace
libctf libctf: fix creation-time parent/child dict confusions 2023-10-20 18:09:54 +01:00
libdecnumber
libiberty
libsframe
opcodes aarch64: Add LSE128 instructions 2023-11-07 21:54:19 +00:00
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sim sim/riscv: fix JALR instruction simulation 2023-10-18 17:55:31 +01:00
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Makefile.def sim: add distclean dep for gnulib 2023-10-15 23:00:33 +05:45
Makefile.in sim: add distclean dep for gnulib 2023-10-15 23:00:33 +05:45
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
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If you are receiving this as part of a GDB release, see the file gdb/README.
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	./configure 
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	CC=gcc ./configure
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