[Bug libc/22433] New: linux x86/x86_64 <sys/ptrace.h> does not provide PTRACE_GET_THREAD_AREA (and more)

["mark at chromium dot org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=22433

            Bug ID: 22433
           Summary: linux x86/x86_64 <sys/ptrace.h> does not provide
                    PTRACE_GET_THREAD_AREA (and more)
           Product: glibc
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: mark at chromium dot org
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---

PTRACE_GET_THREAD_AREA is missing from <sys/ptrace.h> on x86 and x86_64 Linux.

It’s provided by the kernel’s <asm/ptrace-abi.h>, and in turn by
<linux/ptrace.h>, but these are incompatible with glibc’s <sys/ptrace.h>.
<asm/ptrace-abi.h> offers:

#define PTRACE_GET_THREAD_AREA    25

Others missing (strictly Linux x86/x86_64-specific):

#define PTRACE_SET_THREAD_AREA    26

#ifdef __x86_64__
# define PTRACE_ARCH_PRCTL        30
#endif

#define PTRACE_SYSEMU             31
#define PTRACE_SYSEMU_SINGLESTEP  32

#define PTRACE_SINGLEBLOCK      33      /* resume execution until next branch
*/

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