scripts, cc/gcc: do not fail on existing symlinks or build.log
If the user builds a toolchain over an existing one, so, without removing
CT_PREFIX_DIR, the build fails as the symlinks already exist, as does the
build.log.
This can also happen (for build.log) if the user first ran in download-
or extract-only.
Patch (with no SoB) originally from:
Phil Wilshire <phil.wilshire@overturenetworks.com>
Modified by me as it did not apply cleanly.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 1ebc2248cc60230cd53ff94ae8f8f1e3261461a3)
1 http://bugs.gentoo.org/196245
2 http://sourceware.org/ml/libc-alpha/2006-05/msg00017.html
4 Attached is a patch to add __attribute__ ((noinline)) to
7 Without this patch, the sec script that processed initfini.s removes a
8 part of inlined call_gmon_start, causing undefined label errors.
10 This patch solves the problem by forcing gcc not to inline
11 call_gmon_start with __attribute__ ((noinline)).
13 Tested by building for arm-none-lixux-gnueabi. OK to apply?
17 2006-05-07 Kazu Hirata <kazu@codesourcery.com>
19 * sysdeps/generic/initfini.c (call_gmon_start): Add
20 __attribute__ ((noinline)).
22 Index: sysdeps/generic/initfini.c
23 ===================================================================
25 diff -durN glibc-2.10.1.orig/sysdeps/generic/initfini.c glibc-2.10.1/sysdeps/generic/initfini.c
26 --- glibc-2.10.1.orig/sysdeps/generic/initfini.c 2007-06-17 20:02:40.000000000 +0200
27 +++ glibc-2.10.1/sysdeps/generic/initfini.c 2009-11-13 00:50:09.000000000 +0100
29 /* The beginning of _init: */
30 asm ("\n/*@_init_PROLOG_BEGINS*/");
33 +static void __attribute__ ((noinline))
36 extern void __gmon_start__ (void) __attribute__ ((weak)); /*weak_extern (__gmon_start__);*/