[Bug libc/21286] New: bits/siginfo.h is missing enum definition for TRAP_HWBKPT

[pratyush.anand at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21286

            Bug ID: 21286
           Summary: bits/siginfo.h  is missing enum definition for
                    TRAP_HWBKPT
           Product: glibc
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: pratyush.anand at gmail dot com
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---

Created attachment 9927
  --> https://sourceware.org/bugzilla/attachment.cgi?id=9927&action=edit
Fix for the reported issue

Description of problem:

#wget
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c

# gcc -o breakpoint_test_arm64 breakpoint_test_arm64.c
breakpoint_test_arm64.c: In function ‘run_test’:
breakpoint_test_arm64.c:171:25: error: ‘TRAP_HWBKPT’ undeclared (first use in
this function)
  if (siginfo.si_code != TRAP_HWBKPT) {
                         ^
breakpoint_test_arm64.c:171:25: note: each undeclared identifier is reported
only once for each function it appears in

I compiled this file locally with following addition in my
/usr/include/bits/siginfo.h, and sorry I forgot to upstream changes to glibc :(

# diff /usr/include/bits/siginfo.h ~/siginfo.h 
229c229
<   TRAP_TRACE,                 /* Process trace trap.  */
---
>   TRAP_TRACE                  /* Process trace trap.  */
231,234d230
<   TRAP_BRANCH,                        /* Process branch trap. */
< # define TRAP_BRANCH  TRAP_BRANCH
<   TRAP_HWBKPT                 /* hardware breakpoint/watchpoint  */
< # define TRAP_HWBKPT  TRAP_HWBKPT

I think attached patch should resolve it in upstream glibc.

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