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Warn when the plugin interface runs out of file descriptors.

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* plugin.c (bfd_plugin_open_input): Inform the user if the limit
	on the number of open files is reached.  If possible, try to
	increase this limit before failing.
This commit is contained in:
Nick Clifton
2021-05-19 11:53:23 +01:00
parent b534617fd5
commit 83b0a6865c
2 changed files with 35 additions and 1 deletions
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6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2021-05-19 Nick Clifton <nickc@redhat.com>
* plugin.c (bfd_plugin_open_input): Inform the user if the limit
on the number of open files is reached. If possible, try to
increase this limit before failing.
2021-05-14 Nelson Chu <nelson.chu@sifive.com> 2021-05-14 Nelson Chu <nelson.chu@sifive.com>
* elfnn-riscv.c (riscv_resolve_pcrel_lo_relocs): Check the values * elfnn-riscv.c (riscv_resolve_pcrel_lo_relocs): Check the values

30
bfd/plugin.c
View File

@ -209,7 +209,35 @@ bfd_plugin_open_input (bfd *ibfd, struct ld_plugin_input_file *file)
the same underlying file descriptor. */ the same underlying file descriptor. */
file->fd = open (file->name, O_RDONLY | O_BINARY); file->fd = open (file->name, O_RDONLY | O_BINARY);
if (file->fd < 0) if (file->fd < 0)
return 0; {
#ifndef EMFILE
return 0;
#else
if (errno != EMFILE)
return 0;
#ifdef HAVE_GETRLIMIT
struct rlimit lim;
/* Complicated links involving lots of files and/or large archives
can exhaust the number of file descriptors available to us.
If possible, try to allocate more descriptors. */
if (getrlimit (RLIMIT_NOFILE, & lim) == 0
&& lim.rlim_cur < lim.rlim_max)
{
lim.rlim_cur = lim.rlim_max;
if (setrlimit (RLIMIT_NOFILE, &lim) == 0)
file->fd = open (file->name, O_RDONLY | O_BINARY);
}
if (file->fd < 0)
#endif
{
_bfd_error_handler (_("plugin framework: out of file descriptors. Try using fewer objects/archives\n"));
return 0;
}
#endif
}
if (iobfd == ibfd) if (iobfd == ibfd)
{ {