crosstool-ng: patches/glibc/ports-2.10.1/420-alpha-no-asm-elf-header.patch@c0bf2319af08

scripts: fix dumping execution backtrace

Dumping the backtrace has been broken since changeset #652e56d6d35a:
scripts: execute each steps in a subshell

We can spawn sub-sub-shells in some cases.

The way the fault handler works is to dump the backtrace, but to avoid
printing it once for every sub-shell (which could get quite confusing),
it simply exits when it detects that it is being run in a sub-shell,
leaving to the top-level shell the work to dump the backtrace.

Because each step is executed in its own sub-shell, the variable arrays
that contain the step name, the source file and line number, are lost
when exiting the per-step sub-shell.

Hence, the backtrace is currently limited to printing only the top-level
main procedure of the shell.

Fix this thus:
- when dumping the bckatraces for the steps & the functions, remember
it was dumped, and only dump it if it was not already dumped
- at the top-level shell, print the hints

Also, rename the top-level step label.

Reported-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 4193d6e6a17430a177fa88c287879c2c35e319f3)

     1 2007-03-13  Mike Frysinger  <vapier@gentoo.org>

     3 	* sysdeps/unix/sysv/linux/alpha/sys/procfs.h: Copy some defines

     4 	from alpha's asm/elf.h

     6 diff -durN glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/sys/procfs.h glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/sys/procfs.h

     7 --- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/sys/procfs.h	2009-05-16 10:36:20.000000000 +0200

     8 +++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/sys/procfs.h	2009-11-13 00:50:49.000000000 +0100

     9 @@ -29,10 +29,23 @@

    10  #include <sys/types.h>

    11  #include <sys/ucontext.h>

    12  #include <sys/user.h>

    13 -#include <asm/elf.h>

    15  __BEGIN_DECLS

    17 +/*

    18 + * The OSF/1 version of <sys/procfs.h> makes gregset_t 46 entries long.

    19 + * I have no idea why that is so.  For now, we just leave it at 33

    20 + * (32 general regs + processor status word).

    21 + */

    22 +#define ELF_NGREG	33

    23 +#define ELF_NFPREG	32

    24 +

    25 +typedef unsigned long elf_greg_t;

    26 +typedef elf_greg_t elf_gregset_t[ELF_NGREG];

    27 +

    28 +typedef double elf_fpreg_t;

    29 +typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];

    30 +

    31  struct elf_siginfo

    32    {

    33      int si_signo;			/* Signal number.  */

    34 diff -durN glibc-2.10.1.orig/ports/sysdeps/unix/sysv/linux/alpha/sys/procfs.h glibc-2.10.1/ports/sysdeps/unix/sysv/linux/alpha/sys/procfs.h

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Tue Dec 13 23:32:39 2011 +0100 (2011-12-13)
branch	1.13
changeset 2847	c0bf2319af08
permissions	-rw-r--r--