patches/uClibc/0.9.30.2/180-Unbreak-build-for-sparc-on-some-config-s.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Dec 13 23:32:39 2011 +0100 (2011-12-13)
branch1.13
changeset 2847 c0bf2319af08
permissions -rw-r--r--
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 From 7b964170536951a260f7d552db99b428d1ea5026 Mon Sep 17 00:00:00 2001
     2 From: Austin Foxley <austinf@cetoncorp.com>
     3 Date: Wed, 3 Feb 2010 12:12:10 -0800
     4 Subject: [PATCH 08/15] Unbreak build for sparc on some config's
     5 
     6 Thanks to rob@landley.net
     7 
     8 Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
     9 ---
    10  libc/sysdeps/linux/sparc/sigaction.c |    9 ++++-----
    11  1 files changed, 4 insertions(+), 5 deletions(-)
    12 
    13 diff --git a/libc/sysdeps/linux/sparc/sigaction.c b/libc/sysdeps/linux/sparc/sigaction.c
    14 index a22ac40..7140fd3 100644
    15 --- a/libc/sysdeps/linux/sparc/sigaction.c
    16 +++ b/libc/sysdeps/linux/sparc/sigaction.c
    17 @@ -34,7 +34,8 @@ _syscall5(int, rt_sigaction, int, a, int, b, int, c, int, d, int, e);
    18  static void __rt_sigreturn_stub(void);
    19  static void __sigreturn_stub(void);
    20  
    21 -int __libc_sigaction(int sig, const struct sigaction *act, struct sigaction *oact)
    22 +libc_hidden_proto(sigaction)
    23 +int sigaction(int sig, const struct sigaction *act, struct sigaction *oact)
    24  {
    25  	int ret;
    26  	struct sigaction kact, koact;
    27 @@ -65,10 +66,8 @@ int __libc_sigaction(int sig, const struct sigaction *act, struct sigaction *oac
    28  	return ret;
    29  }
    30  
    31 -#ifndef LIBC_SIGACTION
    32 -weak_alias(__libc_sigaction,sigaction)
    33 -libc_hidden_weak(sigaction)
    34 -#endif
    35 +libc_hidden_def(sigaction)
    36 +weak_alias(sigaction,__libc_sigaction)
    37  
    38  static void
    39  __rt_sigreturn_stub(void)
    40 -- 
    41 1.6.6.1
    42