[llvm-bugs] [Bug 50562] New: ERROR: UndefinedBehaviorSanitizer failed to allocate 0x0 (0) bytes of SetAlternateSignalStack (error code: 22)

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=50562

            Bug ID: 50562
           Summary: ERROR: UndefinedBehaviorSanitizer failed to allocate
                    0x0 (0) bytes of  SetAlternateSignalStack (error code:
                    22)
           Product: clang
           Version: 12.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C
          Assignee: unassignedclangbugs at nondot.org
          Reporter: rjones at redhat.com
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

clang -o conftest -g -O3 -march=native -fsanitize=cfi -fno-sanitize-trap=all
-flto -fvisibility=hidden  -Wl,-z,relro -Wl,--as-needed  -Wl,-z,now
-specs=/usr/lib/rpm/redhat/redhat-hardened-ld  -O3 -march=native -fsanitize=cfi
-fno-sanitize-trap=all -flto -fvisibility=hidden
-Wno-unused-command-line-argument conftest.c
./conftest
==1554568==ERROR: UndefinedBehaviorSanitizer failed to allocate 0x0 (0) bytes
of
 SetAlternateSignalStack (error code: 22)
==1554568==Process memory map follows:
[..]
==1554568==End of process memory map.
==1554568==Sanitizer CHECK failed:
../lib/sanitizer_common/sanitizer_common.cpp:54 ((0 && "unable to mmap")) !=
(0) (0, 0)
configure:4233: $? = 1
configure:4240: error: in `/home/rjones/d/nbdkit':
configure:4242: error: cannot run C compiled programs.

conftest.c is very simple:

-----------
#include <stdio.h>
int
main (void)
{
FILE *f = fopen ("conftest.out", "w");
 return ferror (f) || fclose (f) != 0;

  ;
  return 0;
}
-----------

This actually happens during one of autoconf ./configure's basic compiler
tests.

clang-12.0.0-2.fc35.x86_64

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