[MacPorts] #67539: openssh @9.3p1_1 Nearly all client programs crash with Segmentation Fault.

[MacPorts]

#67539: openssh @9.3p1_1 Nearly all client programs crash with Segmentation Fault.
------------------------+----------------------
  Reporter:  snowflake  |      Owner:  artkiver
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.8.99
Resolution:             |   Keywords:
      Port:  openssh    |
------------------------+----------------------

Comment (by piru):

 While at it I also developed a quick runtime test. It's a bit crude but
 works.

 {{{
 #include <string.h>
 #include <stdlib.h>

 __attribute__((noinline)) void *mymalloc(size_t l)
 {
         return malloc(l);
 }

 __attribute__((noinline)) int dummy(void *a, const void *b, size_t c)
 {
         return !a || !b || !c;
 }

 __attribute__((noinline)) int test(char *s)
 {
         size_t l = strlen(s) + 1;
         void *p = mymalloc(l);
         return dummy(p, s, l);
 }

 int main(void)
 {
         return test("a");
 }
 }}}

 To test:
 {{{
 clang --target=x86_64-apple-darwin-macho -fzero-call-used-regs=all -O1 -o
 x x.c && ./x && echo "clang ok"
 }}}

 It depends highly on specifics of the clang internals, such as register
 allocation etc. So it is not guaranteed to work in every situation.
 However, at worst it will report false negative, i.e. not detect a buggy
 clang.

-- 
Ticket URL: <https://trac.macports.org/ticket/67539#comment:37>
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