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e268fd0a02
freebsd-nq/sys/conf
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Brooks Davis e268fd0a02 Support initializing stack variables on function entry 
There are two options:
 - WITH_INIT_ALL_ZERO: Zero all variables on the stack.
 - WITH_INIT_ALL_PATTERN: Initialize variables with well-defined patterns.

The exact pattern are a compiler implementation detail and vary by type.
They are somewhat documented in the LLVM commit message:
https://reviews.llvm.org/rL349442
I've used WITH_INIT_ALL_* to match Microsoft's InitAll feature rather
than naming them after the LLVM specific compiler flags.

In a range of consumer products, options like these are used in
both debug and production builds with debugs builds using patterns
(intended to provoke crashes on use of uninitialized values) and
production using zeros (deemed more likely to lead to harmless
misbehavior or NULL-pointer dereferences).

Reviewed by:	emaste
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D27131
2020-11-10 19:15:13 +00:00
..
config.mk Add SCTP_SUPPORT handling to config.mk. 2020-06-25 15:25:00 +00:00
dtb.build.mk Use MACHINE_CPUARCH when checking for arm64 2020-09-14 16:12:28 +00:00
dtb.mk Allow kernel config to specify DTS/DTSO to build, and out-of-tree support 2019-03-26 02:45:23 +00:00
files LinuxKPI: Implement ACPI bits required by drm-kmod in base system 2020-11-09 13:20:14 +00:00
files.amd64 linux(4): Deduplicate unimpl/dummy syscall handlers 2020-11-05 19:30:31 +00:00
files.arm Remove support for DES and Triple DES from OCF. 2020-05-11 21:34:29 +00:00
files.arm64 10Gigabit Ethernet driver for AMD SoC 2020-10-11 16:01:16 +00:00
files.i386 linux(4): Fix loadable modules after r367395 2020-11-06 22:04:57 +00:00
files.mips Remove support for DES and Triple DES from OCF. 2020-05-11 21:34:29 +00:00
files.powerpc Fix powerpc and LINT builds 2020-11-06 18:50:00 +00:00
files.riscv riscv: Include syscon_power device driver in GENERIC kernel config 2020-07-26 18:21:02 +00:00
files.x86 Add qat(4) 2020-11-05 15:55:23 +00:00
kern.mk Support initializing stack variables on function entry 2020-11-10 19:15:13 +00:00
kern.opts.mk RISC-V: enable MK_FORMAT_EXTENSIONS 2020-09-08 13:24:44 +00:00
kern.post.mk Use a template assembly file to generate the embedded MFS. 2020-10-20 16:48:45 +00:00
kern.pre.mk Use a template assembly file to generate the embedded MFS. 2020-10-20 16:48:45 +00:00
kmod_syms_prefix.awk
kmod_syms.awk
kmod.mk [zfs] Remove a non-existent directory in the build infra 2020-10-18 22:37:58 +00:00
kmod.opts.mk Add a kmod.opts.mk. 2019-11-21 18:14:26 +00:00
ldscript.amd64 Tighten mapping protections on preloaded files on amd64. 2019-10-18 14:05:13 +00:00
ldscript.arm Eliminate the generated ldscript for arm and arm64, and strip $a/$d marker 2019-12-29 18:17:12 +00:00
ldscript.arm64 Eliminate the generated ldscript for arm and arm64, and strip $a/$d marker 2019-12-29 18:17:12 +00:00
ldscript.i386 Expose the kernel's build-ID through sysctl 2019-06-04 13:07:10 +00:00
ldscript.kmod.amd64 Move PLTs to the beginning of amd64 kernel modules. 2020-09-16 13:51:47 +00:00
ldscript.kmod.i386 Formalize the use of linker scripts for kernel modules. 2019-10-16 22:19:56 +00:00
ldscript.mips Expose the kernel's build-ID through sysctl 2019-06-04 13:07:10 +00:00
ldscript.mips.cfe Expose the kernel's build-ID through sysctl 2019-06-04 13:07:10 +00:00
ldscript.mips.mips64 Expose the kernel's build-ID through sysctl 2019-06-04 13:07:10 +00:00
ldscript.mips.octeon1 Fix linking OCTEON1 kernel with LLD 2020-03-22 22:18:00 +00:00
ldscript.powerpc [PowerPC] kernel ifunc support for powerpc*, fix ppc64 relocation oddities. 2020-05-07 19:32:49 +00:00
ldscript.powerpc64 [PowerPC] Fix build-id note on powerpc64 kernel 2020-06-01 19:40:59 +00:00
ldscript.powerpc64le [PowerPC64LE] Set up powerpc.powerpc64le architecture 2020-09-22 23:49:30 +00:00
ldscript.powerpcspe [PowerPC] kernel ifunc support for powerpc*, fix ppc64 relocation oddities. 2020-05-07 19:32:49 +00:00
ldscript.riscv Set the LMA of the riscv kernel to the OpenSBI jump target by default 2020-02-04 00:06:16 +00:00
Makefile.amd64 Don't try ctfconvert on file without debug info. 2020-04-28 16:09:25 +00:00
Makefile.arm Brand our DTS with the Linux version it was imported from 2020-10-10 07:18:51 +00:00
Makefile.arm64 Eliminate the generated ldscript for arm and arm64, and strip $a/$d marker 2019-12-29 18:17:12 +00:00
Makefile.i386 Retire CLANG_NO_IAS34 2018-11-01 23:11:47 +00:00
Makefile.mips Compile hack.c with normal CFLAGS + -shared -nostdlib. 2020-01-26 14:19:08 +00:00
Makefile.powerpc Remove tests for obsolete compilers in the build system 2020-05-12 15:22:40 +00:00
Makefile.riscv Simplify the RISC-V kernel linker invocation 2020-05-22 18:54:56 +00:00
newvers.sh Partially revert r346018 and use the if/then construct instead of shell. 2020-09-14 14:45:30 +00:00
NOTES Add "Fenestras X" alternative /dev/random implementation 2020-10-10 21:45:59 +00:00
options Add "Fenestras X" alternative /dev/random implementation 2020-10-10 21:45:59 +00:00
options.amd64 Initial support for bhyve save and restore. 2020-05-05 00:02:04 +00:00
options.arm Kill old armv4 busdma 2020-02-02 08:27:14 +00:00
options.arm64 Add i.MX 8M Quad support 2020-07-01 00:33:16 +00:00
options.i386 i386: Merge PAE and non-PAE pmaps into same kernel. 2019-01-30 02:07:13 +00:00
options.mips
options.powerpc [PowerPC64LE] Work around qemu TCG bug in mtmsrd emulation. 2020-09-23 00:09:29 +00:00
options.riscv
sysent.mk Rebuild sysent when capabilities.conf is updated. 2020-07-07 16:35:52 +00:00
systags.sh Fix kernel-tags target. 2020-01-23 13:56:12 +00:00
WITHOUT_SOURCELESS
WITHOUT_SOURCELESS_HOST
WITHOUT_SOURCELESS_UCODE retire cx,ctau drivers 2020-03-20 16:50:19 +00:00