10 Nov, 2016

1 commit

• 82031ea29   scripts/has-stack-protector: add -fno-PIE ... Browse Code »

  Adding -no-PIE to the fstack protector check. -no-PIE was introduced
  before -fstack-protector so there is no need for a runtime check.

  Without it the build stops:
  |Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong available but compiler is broken

  due to -mcmodel=kernel + -fPIE if -fPIE is enabled by default.

  Tagging it stable so it is possible to compile recent stable kernels as
  well.

  Cc: stable@vger.kernel.org
  Signed-off-by: Sebastian Andrzej Siewior
  Signed-off-by: Michal Marek

  Sebastian Andrzej Siewior

  2016-11-10 05:28:05 +0800  

20 Aug, 2014

1 commit

• 06ed5c2bf   kbuild: Make scripts executable ... Browse Code »

  The Makefiles call the respective interpreter explicitly, but this makes
  it easier to use the scripts manually.

  Signed-off-by: Michal Marek

  Michal Marek

  2014-08-20 22:03:45 +0800  

03 Oct, 2012

1 commit

• b1e0d8b70   kbuild: Fix gcc -x syntax ... Browse Code »

  The correct syntax for gcc -x is "gcc -x assembler", not
  "gcc -xassembler". Even though the latter happens to work, the former
  is what is documented in the manual page and thus what gcc wrappers
  such as icecream do expect.

  This isn't a cosmetic change. The missing space prevents icecream from
  recognizing compilation tasks it can't handle, leading to silent kernel
  miscompilations.

  Besides me, credits go to Michael Matz and Dirk Mueller for
  investigating the miscompilation issue and tracking it down to this
  incorrect -x parameter syntax.

  Signed-off-by: Jean Delvare
  Acked-by: Ingo Molnar
  Cc: stable@vger.kernel.org
  Cc: Bernhard Walle
  Cc: Michal Marek
  Cc: Ralf Baechle
  Signed-off-by: Michal Marek

  Jean Delvare

  2012-10-03 15:03:24 +0800  

11 Feb, 2009

1 commit

• ebd9026d9   stackprotector: fix multi-word cross-builds ... Browse Code »

  Stackprotector builds were failing if CROSS_COMPILER was more than
  a single world (such as when distcc was used) - because the check
  scripts used $1 instead of $*.

  Signed-off-by: Ingo Molnar

  Ingo Molnar

  2009-02-11 19:17:29 +0800  

10 Feb, 2009

1 commit

• 5d707e9c8   stackprotector: update make rules ... Browse Code »

  Impact: no default -fno-stack-protector if stackp is enabled, cleanup

  Stackprotector make rules had the following problems.

  * cc support test and warning are scattered across makefile and
  kernel/panic.c.

  * -fno-stack-protector was always added regardless of configuration.

  Update such that cc support test and warning are contained in makefile
  and -fno-stack-protector is added iff stackp is turned off. While at
  it, prepare for 32bit support.

  Signed-off-by: Tejun Heo
  Signed-off-by: Ingo Molnar

  Tejun Heo

  2009-02-10 07:41:54 +0800  

26 Sep, 2006

1 commit

• 4f7fd4d7a   [PATCH] Add the -fstack-protector option to the CFLAGS ... Browse Code »

  Add a feature check that checks that the gcc compiler has stack-protector
  support and has the bugfix for PR28281 to make this work in kernel mode.
  The easiest solution I could find was to have a shell script in scripts/
  to do the detection; if needed we can make this fancier in the future
  without making the makefile too complex.

  Signed-off-by: Arjan van de Ven
  Signed-off-by: Andi Kleen
  CC: Andi Kleen
  CC: Sam Ravnborg

  Arjan van de Ven

  2006-09-26 16:52:39 +0800