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patches/glibc/ports-2.10.1/320-hppa-pie.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 

     2 

     3 diff -durN glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/hppa/elf/start.S glibc-2.10.1/glibc-ports-2.10.1/sysdeps/hppa/elf/start.S

     4 --- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/hppa/elf/start.S	2009-05-16 10:36:20.000000000 +0200

     5 +++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/hppa/elf/start.S	2009-11-13 00:50:28.000000000 +0100

     6 @@ -96,16 +96,16 @@

     7  

     8  #if SHARED

     9  	/* load main (1st argument) */

    10 -	addil	LR'.Lpmain, %r19

    11 -	ldw	RR'.Lpmain(%r1), %r26

    12 +	addil	LT'.Lpmain, %r19

    13 +	ldw	RT'.Lpmain(%r1), %r26

    14  	ldw	0(%r26),%r26

    15  	/* void (*init) (void) (4th argument) */

    16 -	addil	LR'.Lp__libc_csu_init, %r19

    17 -	ldw	RR'.Lp__libc_csu_init(%r1), %r23

    18 +	addil	LT'.Lp__libc_csu_init, %r19

    19 +	ldw	RT'.Lp__libc_csu_init(%r1), %r23

    20  	ldw	0(%r23), %r23

    21  	/* void (*fini) (void) (5th argument) */

    22 -	addil	LR'.Lp__libc_csu_fini, %r19

    23 -	ldw	RR'.Lp__libc_csu_fini(%r1), %r22

    24 +	addil	LT'.Lp__libc_csu_fini, %r19

    25 +	ldw	RT'.Lp__libc_csu_fini(%r1), %r22

    26  	ldw	0(%r22), %r22

    27  #else

    28  	/* load main (1st argument) */

    29 diff -durN glibc-2.10.1.orig/ports/sysdeps/hppa/elf/start.S glibc-2.10.1/ports/sysdeps/hppa/elf/start.S
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