[PATCH 0/7] tools/nolibc: autodetect stackprotector availability from compiler

Thomas Weißschuh posted 7 patches 2 years, 8 months ago
tools/include/nolibc/Makefile                | 19 +++++++++++++++++--
tools/include/nolibc/arch-aarch64.h          |  6 +++---
tools/include/nolibc/arch-arm.h              |  6 +++---
tools/include/nolibc/arch-i386.h             |  6 +++---
tools/include/nolibc/arch-loongarch.h        |  6 +++---
tools/include/nolibc/arch-mips.h             |  6 +++---
tools/include/nolibc/arch-riscv.h            |  6 +++---
tools/include/nolibc/arch-x86_64.h           |  8 ++++----
tools/include/nolibc/arch.h                  |  2 +-
tools/include/nolibc/compiler.h              | 15 +++++++++++++++
tools/include/nolibc/stackprotector.h        | 15 ++++++---------
tools/testing/selftests/nolibc/Makefile      | 13 ++-----------
tools/testing/selftests/nolibc/nolibc-test.c | 10 +++++++++-
13 files changed, 72 insertions(+), 46 deletions(-)
[PATCH 0/7] tools/nolibc: autodetect stackprotector availability from compiler
Posted by Thomas Weißschuh 2 years, 8 months ago
As suggested by Willy it is possible to detect the availability of
stackprotector via preprocessor defines.
Make use of that to simplify the code and interface of nolibc.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
Thomas Weißschuh (7):
      tools/nolibc: fix typo pint -> point
      tools/nolibc: x86_64: disable stack protector for _start
      tools/nolibc: ensure stack protector guard is never zero
      tools/nolibc: add test for __stack_chk_guard initialization
      tools/nolibc: reformat list of headers to be installed
      tools/nolibc: add autodetection for stackprotector support
      tools/nolibc: simplify stackprotector compiler flags

 tools/include/nolibc/Makefile                | 19 +++++++++++++++++--
 tools/include/nolibc/arch-aarch64.h          |  6 +++---
 tools/include/nolibc/arch-arm.h              |  6 +++---
 tools/include/nolibc/arch-i386.h             |  6 +++---
 tools/include/nolibc/arch-loongarch.h        |  6 +++---
 tools/include/nolibc/arch-mips.h             |  6 +++---
 tools/include/nolibc/arch-riscv.h            |  6 +++---
 tools/include/nolibc/arch-x86_64.h           |  8 ++++----
 tools/include/nolibc/arch.h                  |  2 +-
 tools/include/nolibc/compiler.h              | 15 +++++++++++++++
 tools/include/nolibc/stackprotector.h        | 15 ++++++---------
 tools/testing/selftests/nolibc/Makefile      | 13 ++-----------
 tools/testing/selftests/nolibc/nolibc-test.c | 10 +++++++++-
 13 files changed, 72 insertions(+), 46 deletions(-)
---
base-commit: 606343b7478c319cb30291a39ecbceddb42229d6
change-id: 20230521-nolibc-automatic-stack-protector-b4f7fab9e625

Best regards,
-- 
Thomas Weißschuh <linux@weissschuh.net>

Re: [PATCH 0/7] tools/nolibc: autodetect stackprotector availability from compiler
Posted by Willy Tarreau 2 years, 8 months ago
Hi Thomas,

On Sun, May 21, 2023 at 11:36:28AM +0200, Thomas Weißschuh wrote:
> As suggested by Willy it is possible to detect the availability of
> stackprotector via preprocessor defines.
> Make use of that to simplify the code and interface of nolibc.

I have just had a quick glance over it and not tested it yet, but
overall I really like it, thank you! I'll try to give you some
feedback today (or simply merge it).

Willy