Commit Graph

82 Commits

Author SHA1 Message Date
Jan Malakhovski
82dd4501f4 bintools-wrapper, cc-wrapper: don't add targetPrefix the second time
... binutils and gcc add it already anyway.

Without this it's easy to get cross-toolchain paths longer than 256
chars and nix-daemon will then fail to commit them to /nix/store on XFS.
2018-04-26 15:06:52 +00:00
John Ericson
b9acfb4ecf treewide: isArm -> isAarch32
Following legacy packing conventions, `isArm` was defined just for
32-bit ARM instruction set. This is confusing to non packagers though,
because Aarch64 is an ARM instruction set.

The official ARM overview for ARMv8[1] is surprisingly not confusing,
given the overall state of affairs for ARM naming conventions, and
offers us a solution. It divides the nomenclature into three levels:

```
ISA:             ARMv8   {-A, -R, -M}
                 /    \
Mode:     Aarch32     Aarch64
             |         /   \
Encoding:   A64      A32   T32
```

At the top is the overall v8 instruction set archicture. Second are the
two modes, defined by bitwidth but differing in other semantics too, and
buttom are the encodings, (hopefully?) isomorphic if they encode the
same mode.

The 32 bit encodings are mostly backwards compatible with previous
non-Thumb and Thumb encodings, and if so we can pun the mode names to
instead mean "sets of compatable or isomorphic encodings", and then
voilà we have nice names for 32-bit and 64-bit arm instruction sets
which do not use the word ARM so as to not confused either laymen or
experienced ARM packages.

[1]: https://developer.arm.com/products/architecture/a-profile

(cherry picked from commit ba52ae5048)
2018-04-25 15:50:41 -04:00
John Ericson
ba52ae5048 treewide: isArm -> isAarch32
Following legacy packing conventions, `isArm` was defined just for
32-bit ARM instruction set. This is confusing to non packagers though,
because Aarch64 is an ARM instruction set.

The official ARM overview for ARMv8[1] is surprisingly not confusing,
given the overall state of affairs for ARM naming conventions, and
offers us a solution. It divides the nomenclature into three levels:

```
ISA:             ARMv8   {-A, -R, -M}
                 /    \
Mode:     Aarch32     Aarch64
             |         /   \
Encoding:   A64      A32   T32
```

At the top is the overall v8 instruction set archicture. Second are the
two modes, defined by bitwidth but differing in other semantics too, and
buttom are the encodings, (hopefully?) isomorphic if they encode the
same mode.

The 32 bit encodings are mostly backwards compatible with previous
non-Thumb and Thumb encodings, and if so we can pun the mode names to
instead mean "sets of compatable or isomorphic encodings", and then
voilà we have nice names for 32-bit and 64-bit arm instruction sets
which do not use the word ARM so as to not confused either laymen or
experienced ARM packages.

[1]: https://developer.arm.com/products/architecture/a-profile
2018-04-25 15:28:55 -04:00
Tuomas Tynkkynen
16b45ec3da Merge remote-tracking branch 'upstream/master' into HEAD
Conflicts:
	pkgs/applications/version-management/git-and-tools/git/default.nix
	pkgs/top-level/all-packages.nix
	pkgs/top-level/unix-tools.nix
2018-04-16 21:13:30 +03:00
Piotr Bogdan
4707dc6454 {cc,bintools}-wrapper: fix removal of unsupported hardening flags 2018-04-14 15:16:34 +01:00
John Ericson
800cb8ae71
Merge pull request #38881 from obsidiansystems/sierra-hack
cc-wrapper: More intelligent sierra hack
2018-04-13 14:39:56 -04:00
John Ericson
1a72330ab0 cc-wrapper: Utilize patched cctools ld for more robust macOS Sierra hack
Also fix numberous bugs, such as:

 - Not getting confused on more flags taking file arguments.

 - Ensuring children reexport their children, but the original
   binary/library doesn't.

 - Not spawning children when it turns out we just dynamically link
   under the threshold but our total number of inputs exceeeds it.

 - Children were always named `libunnamed-*`, when that name was
   supposed to be the last resort only.

ld-wrapper's own RPATH check hardcodes `.so`, but darwin uses `.dylib`
*and* (in practice due to lousy build systems) `.so`. We don't care
however because we never inject `--rpath` like that in practice on
Darwin. Hopefully someday we won't on linux either.
2018-04-13 13:17:03 -04:00
John Ericson
0884027ef5 Revert "Revert "Merge pull request #28029 from cstrahan/hardening-fix""
This reverts commit 6c064e6b1f, reapplying
PR #28029 which was supposed to have gone to staging all along.
2018-04-11 14:00:13 -04:00
Matthew Bauer
6c064e6b1f Revert "Merge pull request #28029 from cstrahan/hardening-fix"
This reverts commit 0dbc006760, reversing
changes made to cb7f774265.

Should go into staging.
2018-04-10 19:07:27 -05:00
John Ericson
0dbc006760
Merge pull request #28029 from cstrahan/hardening-fix
hardening: fix #18995
2018-04-10 19:48:02 -04:00
John Ericson
ac4d74b6d9 hardening: Reindent 2018-04-10 16:33:47 -04:00
John Ericson
21818ae592 hardening: Tiny reindent 2018-04-10 16:33:47 -04:00
John Ericson
2364c22ec9 hardening: line order, spacing, and pointless quoting for consistency 2018-04-10 16:33:47 -04:00
John Ericson
4c76d87871 hardenning: Rejigger ifs and explicit declare and unset -v 2018-04-10 16:33:47 -04:00
Charles Strahan
386e77dae9
hardening: simplify reporting of disabled flags 2018-04-10 15:27:13 -04:00
Will Fancher
d390ee74e3 Added bionic dynamic linker 2018-03-27 21:24:27 -04:00
Charles Strahan
806edaa0a2
hardening: ld wrapper changes, setup-hook, etc 2018-03-06 19:21:10 -05:00
Charles Strahan
634c748050
hardening: initial cross support 2018-03-06 18:03:13 -05:00
Charles Strahan
fc46895e86
hardening: allow user supplied flags to override
Put hardening flags before user supplied flags.
2018-03-06 00:30:09 -05:00
Charles Strahan
9fe17b2153
hardening: fix #18995 2018-03-06 00:30:00 -05:00
Tuomas Tynkkynen
34f95d92a2 Merge remote-tracking branch 'upstream/master' into staging
Conflicts:
	pkgs/applications/misc/pytrainer/default.nix
	pkgs/development/tools/pew/default.nix
	pkgs/tools/misc/you-get/default.nix
2018-02-28 20:52:49 +02:00
Will Dietz
f14ff86ec9 bintools-wrapper: fix breakage on aarch64, where "isArm" is false
Unintentionally changed in #35247
2018-02-28 09:42:13 -06:00
Jan Malakhovski
0ab1067d12 bintools-wrapper: allow building without documentation 2018-02-26 22:42:32 +00:00
Daniel Barlow
9c50ae6898 lib, treewide: Add missing MIPS arches, and fix existing usage
Existing "mips64el" should be "mipsel".

This is just the barest minimum so that nixpkgs can recognize them as
systems - although required for building individual derivations onto
MIPS boards, it is not sufficient if you want to actually build nixos on
those targets
2018-02-23 20:43:42 -05:00
Will Dietz
d5916a84cf bintools-wrapper: teach about musl dynamic linkers 2018-02-13 09:44:33 -06:00
John Ericson
469fd89832 stdenv-setup: Ease the transition with native builds
- All deps go on the PATH

 - CC and Bintools wrappers with their host != depender's host still get their
   setup hooks run.

 - Environment hooks get applied to all packages

This isn't so elegent, but eases the transition on a very significant
PR.
2017-12-30 22:04:23 -05:00
John Ericson
3a50395ef2 {bintools,cc}-wrapper: extraPackages should be depsTargetTargetPropagated
They are libraries used by programs built with these tools, not used by the
tools themselves.
2017-12-30 22:04:21 -05:00
John Ericson
a036473a0a {bintools,cc}-wrapper: Fix setup hook to respect the role of the cc-compiler
We now have the information to properly determine the role the
cc-wrapper dependency has, by taking advantage of `offset`. No longer
use the soon-to-be-deprecated crossConfig environment variable, the
temp hack used before this change.
2017-12-30 22:04:21 -05:00
John Ericson
cc44e04472 bintools-wrapper: Define fallback default emulation
This ensures we by-default cross-compile to the intended platform.
2017-12-29 17:32:28 -05:00
John Ericson
99806c5e12 bintools-wrapper: Create man and info outputs propagated underlying ones
These will be installed if the wrappers are. The wrappers aren't very
good to install, but that's another matter.
2017-12-13 16:08:19 -05:00
John Ericson
ef178be597 bintools-wrapper: Support ld.ldd, along with ld.bfd and ld.gold
Also make the code more precise in the process
2017-12-13 16:08:18 -05:00
John Ericson
8e557ed2c5 bintools-wrapper: Init
Factor a bintools (i.e. binutils / cctools) wrapper out of cc-wrapper. While
only LD is wrapped, the setup hook defines environment variables on behalf of
other utilites.
2017-12-13 16:08:18 -05:00