kernel/git/stable/linux.git/scripts/gcc-goto.sh, branch linux-3.5.yLinux kernel stable treehttps://git.rulkc.org/pub/scm/linux/kernel/git/stable/linux.git/atom?h=linux-3.5.y2012-03-24T09:38:56+00:00ARM: 7333/2: jump label: detect %c support for ARM2012-03-24T09:38:56+00:00Rabin Vincentrabin@rab.in2012-02-24T16:06:20+00:00urn:sha1:a9468f30b5eac6957c86aea97954553bfb7c1f18
Some versions of ARM GCC which do support asm goto, do not support
the %c specifier. Since we need the %c to support jump labels
on ARM, detect that too in the asm goto detection script to avoid
build errors with these versions.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48637
Acked-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
scripts/gcc-goto.sh: fix a typo ("suport")2011-06-16T09:15:22+00:00Jonathan Neuschäferj.neuschaefer@gmx.net2011-06-15T22:17:46+00:00urn:sha1:df0a92c20652d70da70e5e4d08736cc485eaf1ff
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
jump label: Fix GCC feature check when distcc is used2010-09-24T07:12:25+00:00Ingo Molnarmingo@elte.hu2010-09-24T07:12:25+00:00urn:sha1:d6dad199a10423ce37b8bfec1f055c380dc4a3d5
The following build bug occurs on distcc builds:
CC arch/x86/kernel/asm-offsets.s
In file included from include/linux/module.h:24,
from include/linux/crypto.h:22,
from arch/x86/kernel/asm-offsets_64.c:9,
from arch/x86/kernel/asm-offsets.c:5:
include/trace/events/module.h: In function 'trace_module_load':
include/trace/events/module.h:18: error: expected '(' before 'goto'
include/trace/events/module.h:18: error: expected identifier or '*' before '(' token
It triggers because distcc is invoked by turning $CC into "distcc gcc",
but gcc-goto.sh check script was using $1 not $@ to expand parameters.
Cc: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20100923034910.867858597@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
jump label: Base patch for jump label2010-09-22T20:29:41+00:00Jason Baronjbaron@redhat.com2010-09-17T15:09:00+00:00urn:sha1:bf5438fca2950b03c21ad868090cc1a8fcd49536
base patch to implement 'jump labeling'. Based on a new 'asm goto' inline
assembly gcc mechanism, we can now branch to labels from an 'asm goto'
statment. This allows us to create a 'no-op' fastpath, which can subsequently
be patched with a jump to the slowpath code. This is useful for code which
might be rarely used, but which we'd like to be able to call, if needed.
Tracepoints are the current usecase that these are being implemented for.
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jason Baron <jbaron@redhat.com>
LKML-Reference: <ee8b3595967989fdaf84e698dc7447d315ce972a.1284733808.git.jbaron@redhat.com>
[ cleaned up some formating ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>