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patches/glibc/2.9/290-no-inline-gmon.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Wed May 25 20:23:48 2011 +0200 (2011-05-25)
branch1.11
changeset 2552 cc285cc98e65
parent 1201 c9967a6e3b25
permissions -rw-r--r--
debug/gdb: fix runtime sysroot

This patch sets the runtime sysroot to fix the following GDB warning:
"Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code."

The sysroot can later be changed within gdb with the `set sysroot`
command if necessary.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
(transplanted from 7690196856ce4a4700d1887cc3adf80acc627c52) 
     1 Original patch from: gentoo/src/patchsets/glibc/2.9/1080_all_glibc-no-inline-gmon.patch

     2 

     3 -= BEGIN original header =-

     4 http://bugs.gentoo.org/196245

     5 http://sourceware.org/ml/libc-alpha/2006-05/msg00017.html

     6 

     7 Attached is a patch to add __attribute__ ((noinline)) to

     8 call_gmon_start.

     9 

    10 Without this patch, the sec script that processed initfini.s removes a

    11 part of inlined call_gmon_start, causing undefined label errors.

    12 

    13 This patch solves the problem by forcing gcc not to inline

    14 call_gmon_start with __attribute__ ((noinline)).

    15 

    16 Tested by building for arm-none-lixux-gnueabi.  OK to apply?

    17 

    18 Kazu Hirata

    19 

    20 2006-05-07  Kazu Hirata  &lt;kazu@codesourcery.com&gt;

    21 

    22 	* sysdeps/generic/initfini.c (call_gmon_start): Add

    23 	__attribute__ ((noinline)).

    24 

    25 -= END original header =-

    26 

    27 diff -durN glibc-2_9.orig/sysdeps/generic/initfini.c glibc-2_9/sysdeps/generic/initfini.c

    28 --- glibc-2_9.orig/sysdeps/generic/initfini.c	2007-06-17 20:02:40.000000000 +0200

    29 +++ glibc-2_9/sysdeps/generic/initfini.c	2009-02-02 22:01:01.000000000 +0100

    30 @@ -70,7 +70,7 @@

    31  /* The beginning of _init:  */

    32  asm ("\n/*@_init_PROLOG_BEGINS*/");

    33  

    34 -static void

    35 +static void __attribute__ ((noinline))

    36  call_gmon_start(void)

    37  {

    38    extern void __gmon_start__ (void) __attribute__ ((weak)); /*weak_extern (__gmon_start__);*/
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