https://sourceware.org/bugzilla/show_bug.cgi?id=26200
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
(gdb) bt
#0 write_resolution ()
at /export/gnu/import/git/sources/gcc-release/lto-plugin/lto-plugin.c:530
#1 0x00007ffff7fb3175 in all_symbols_read_handler ()
at /export/gnu/import/git/sources/gcc-release/lto-plugin/lto-plugin.c:731
#2 0x00000000008502b9 in gold::Plugin::all_symbols_read (this=0xc041d0)
at /export/gnu/import/git/gitlab/x86-binutils/gold/plugin.cc:403
#3 0x000000000084cbb0 in gold::Plugin_manager::all_symbols_read (
this=0xc08220, workqueue=0x7fffffff35e0, task=0xc58f50,
input_objects=0x7fffffff3570, symtab=0x7fffffff30e0,
dirpath=0x7fffffff2be0, mapfile=0x0, last_blocker=0xc58fb0)
at /export/gnu/import/git/gitlab/x86-binutils/gold/plugin.cc:856
#4 0x000000000084e377 in gold::Plugin_hook::run (this=0xc58f50,
workqueue=0x7fffffff35e0)
at /export/gnu/import/git/gitlab/x86-binutils/gold/plugin.cc:1770
#5 0x00000000008ed547 in gold::Workqueue::find_and_run_task (
this=0x7fffffff35e0, thread_number=9)
at /export/gnu/import/git/gitlab/x86-binutils/gold/workqueue.cc:319
#6 0x00000000008edb74 in gold::Workqueue::process (this=0x7fffffff35e0,
thread_number=9)
at /export/gnu/import/git/gitlab/x86-binutils/gold/workqueue.cc:495
#7 0x00000000008ee337 in gold::Workqueue_threader_threadpool::process (
thread_number=<optimized out>, this=<optimized out>)
at /export/gnu/import/git/gitlab/x86-binutils/gold/workqueue-internal.h:92
#8 gold::Workqueue_thread::thread_body (arg=0xc585b0)
at /export/gnu/import/git/gitlab/x86-binutils/gold/workqueue-threads.cc:117
#9 0x00007ffff7c1a422 in start_thread () from /lib64/libpthread.so.0
#10 0x00007ffff7b46943 in clone () from /lib64/libc.so.6
(gdb)
There are
for (this->current_ = this->plugins_.begin();
this->current_ != this->plugins_.end();
++this->current_)
(*this->current_)->all_symbols_read();
all_symbols_read_handler has
write_resolution ();
free_1 (claimed_files, num_claimed_files);
/* Free all memory that is no longer needed after writing the symbol
resolution. */
static void
free_1 (struct plugin_file_info *files, unsigned num_files)
{
After all_symbols_read_handler is called the first time, all memory are
freed. When all_symbols_read_handler is called the second time, ....
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