Commit graph

14 commits

Author SHA1 Message Date
Eelco Dolstra 47821f1cf0
cc-wrapper: More quadratic performance fixes
This eliminates the slow lookup of whether we've already seen an rpath
/ library path entry.

Issue #27609.
2017-07-25 18:46:49 +02:00
Eelco Dolstra aa4a92d2df
cc-wrapper/ld-wrapper: Minor speedup in string concatenation
There is still a O(n) pattern match in ld-wrapper, so we should
probably rewrite that code to use associative arrays.
2017-07-24 14:48:26 +02:00
Shea Levy 225602d9f2 Merge branch 'response-files' of git://github.com/corngood/nixpkgs into staging 2016-10-31 10:07:30 -04:00
David McFarland 1ad1edbb32 cc-wrapper: expand response files
Fixes #11762
2016-10-31 01:12:07 -03:00
Robin Gloster d020caa5b2 Merge remote-tracking branch 'upstream/master' into hardened-stdenv 2016-04-18 13:49:22 +00:00
Vladimír Čunát ab15a62c68 Merge branch 'master' into closure-size
Beware that stdenv doesn't build. It seems something more will be needed
than just resolution of merge conflicts.
2016-04-01 10:06:01 +02:00
Robin Gloster f60c9df0ba Merge remote-tracking branch 'upstream/master' into hardened-stdenv 2016-03-28 15:16:29 +00:00
Franz Pletz baee91ec60 cc-wrapper: Check if ld supports -z, fixes darwin 2016-03-07 21:40:20 +01:00
Franz Pletz aff1f4ab94 Use general hardening flag toggle lists
The following parameters are now available:

  * hardeningDisable
    To disable specific hardening flags
  * hardeningEnable
    To enable specific hardening flags

Only the cc-wrapper supports this right now, but these may be reused by
other wrappers, builders or setup hooks.

cc-wrapper supports the following flags:

  * fortify
  * stackprotector
  * pie (disabled by default)
  * pic
  * strictoverflow
  * format
  * relro
  * bindnow
2016-03-05 18:55:26 +01:00
Eelco Dolstra d5bb6a1f9c glibc: Enable separate debug symbols
The importance of glibc makes it worthwhile to provide debug
symbols. However, this revealed an issue with separateDebugInfo: it
was indiscriminately adding --build-id to all ld invocations, while in
fact it should only do that for final links. Glibc also uses non-final
("relocatable") links, leading to subsequent failure to apply a build
ID ("Cannot create .note.gnu.build-id section, --build-id
ignored"). So now ld-wrapper.sh only passes --build-id for final
links.
2016-02-28 02:57:37 +01:00
Vladimír Čunát f89a136fd5 cc-wrapper: fixup branch interactions
c0599fdd61 and changes on closure-size didn't go well together.
2016-02-03 16:57:41 +01:00
Vladimír Čunát 8f48a9756b cc-wrapper: quote when saving $PATH 2016-01-25 09:54:10 +01:00
Anthony Cowley d96893647d cc-wrapper: fix on darwin
The ld-wrapper.sh script calls `readlink` in some circumstances. We need
to ensure that this is the `readlink` from the `coreutils` package so
that flag support is as expected.

This is accomplished by explicitly setting PATH at the top of each shell
script.

Without doing this, the following happens with a trivial `main.c`:

```
nix-env -f "<nixpkgs>" -iA pkgs.clang
$ clang main.c -L /nix/../nix/store/2ankvagznq062x1gifpxwkk7fp3xwy63-xnu-2422.115.4/Library -o a.out
readlink: illegal option -- f
usage: readlink [-n] [file ...]
```

The key element is the `..` in the path supplied to the linker via a
`-L` flag. With this patch, the above invocation works correctly on
darwin, whose native `/usr/bin/readlink` does not support the `-f` flag.

The explicit path also ensures that the `grep` called by `cc-wrapper.sh`
is the one from Nix.

Fixes #6447
2016-01-19 17:47:11 -05:00
Eric Seidel 48f63c2f2e rename gcc-wrapper to cc-wrapper.
also makes cc-wrapper compatible with clang in the darwin fork.
2015-01-14 20:26:56 -08:00
Renamed from pkgs/build-support/gcc-wrapper/ld-wrapper.sh (Browse further)