crosstool-ng: patches/glibc/ports-2.9/110-arm-fix-sjlj-for-fpu.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 From: Mike Frysinger <vapier at gentoo dot org>

     2 To: libc-ports at sourceware dot org

     3 Subject: [PATCH] arm/fpu/setjmp.S: add missing hidden def

     4 Date: Thu, 25 Dec 2008 23:08:56 -0500

     6 All the other arm setjmp.S files provide a hidden alias for __sigsetjmp.

     7 Without this, we get a nice build failure like so:

     9 /var/tmp/cross/armv4l-unknown-linux-gnu/portage/cross-armv4l-unknown-linux-gnu/glibc-2.9_p20081201/work/build-default-armv4l-unknown-linux-gnu-nptl/libc_pic.os: In function `setjmp':

    10 unwind-pe.c:(.text+0x15a54): undefined reference to `__GI___sigsetjmp'

    11 /var/tmp/cross/armv4l-unknown-linux-gnu/portage/cross-armv4l-unknown-linux-gnu/glibc-2.9_p20081201/work/build-default-armv4l-unknown-linux-gnu-nptl/libc_pic.os: In function `__GI__setjmp':

    12 unwind-pe.c:(.text+0x15a64): undefined reference to `__GI___sigsetjmp'

    13 collect2: ld returned 1 exit status

    14 make[1]: *** [/var/tmp/cross/armv4l-unknown-linux-gnu/portage/cross-armv4l-unknown-linux-gnu/glibc-2.9_p20081201/work/build-default-armv4l-unknown-linux-gnu-nptl/libc.so] Error 1

    16 Signed-off-by: Mike Frysinger <vapier@gentoo.org>

    17 ---

    18  sysdeps/arm/fpu/setjmp.S |    2 ++

    19  1 files changed, 2 insertions(+), 0 deletions(-)

    21 diff --git a/sysdeps/arm/fpu/setjmp.S b/sysdeps/arm/fpu/setjmp.S

    22 index 8432836..82a7e19 100644

    23 --- a/ports/sysdeps/arm/fpu/setjmp.S

    24 +++ b/ports/sysdeps/arm/fpu/setjmp.S

    25 @@ -33,3 +33,5 @@ ENTRY (__sigsetjmp)

    26  	/* Make a tail call to __sigjmp_save; it takes the same args.  */

    27  	B	PLTJMP(C_SYMBOL_NAME(__sigjmp_save))

    28  END (__sigsetjmp)

    29 +

    30 +hidden_def (__sigsetjmp)

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--