Commit graph

15 commits

Author SHA1 Message Date
Spandan Das
0506361a60 Add errorHints to stdout when read-only file system errors are detected
The source tree will eventually be made ReadOnly, and recipes that write
directly to the source tree will fail. Use a pattern-match approach on
the results of stdout/stderr to provide hints to the user in such a
scenario.

If multiple patterns are found in raw output, print error hint
corresponding to first pattern match. first pattern match is chosen
since the failing function will be at the top of the stack, and hence
will be logged first

Test: Wrote a unit test to assert errorhint is added to output.
Wrote an integration test that writes to a file in the source tree
1. When source_tree is RO, the recipe fails and an error hint is printed
to stdout
2. When source tree is RW, the recipe succeeds and no error hint is
printed

Bug: 174726238
Change-Id: Id67b48f8094cdf8a571c239ae469d60464a1e89c
2021-06-29 00:20:21 +00:00
Spandan Das
a3639e62cd Create Make flags to set source tree as ReadOnly in soong builds
The following two Make vars control RO/RW access to the source tree
1. BUILD_BROKEN_SRC_DIR_IS_WRITABLE
2. BUILD_BROKEN_SRC_DIR_RW_ALLOWLIST

By default, (1) will be truthy.
- this ensures that this CL is a non breaking change across all products
- different products can opt in to set is as "false"

Bug: 174726238
Test: from build/soong dir, ran go test ./ui/build
Change-Id: I4d55ac74f02b2a73194d31506a9010162620b25a
2021-06-01 21:40:49 +00:00
Dan Willemsen
1612e2641e nsjail: Always remount /tmp before src/out/dist
A user was trying to use OUT_DIR=/tmp/...-out DIST_DIR=/tmp/...-dist

Test: OUT_DIR=/tmp/test-out DIST_DIR=/tmp/test-dist m nothing
Change-Id: I811cc8e1bda8d766406603df47309a8637cef48c
2020-05-01 16:26:56 -07:00
Diego Wilson
10e564a98e Dereference paths to be mounted into soong sandbox
Bind mounts require source paths without symbolic links.

Fixes: 153378837
Test: lunch aosp_cf_x86_phone-userdebug && make dist
Change-Id: I5c128f94233d81c52ec5692241b711b3e9d15a85
2020-04-15 20:29:06 +00:00
Diego Wilson
a5d9653cc5 Only mount dist dir to soong sandbox if it exists
The dist dir is created late in the build process. If a
soong sandbox attempts to mount it before it's created
the sandbox will create an empty file in its place.

Test: lunch aosp_cf_x86_phone-userdebug && make -j dist
Change-Id: Ie6513bf702de6e6322c78753d406d70ea3ccc04d
2020-04-06 22:07:56 +00:00
Diego Wilson
a22240bf22 Mount soong sandbox chroot as read-only
It's safer to disallow writing to the root filesystem of the sandbox.
Still allow write access to the source, tmp, out and dist directories.

Test: build aosp_cf_x86_64_phone-userdebug
Change-Id: Idf0d3a420669fbf6c3aba24e058f09a314ec6d0e
2020-04-02 18:11:28 +00:00
Dan Willemsen
1871d88e4f Simplify message around nsjail error
We have known problems (docker; distros w/o user namespaces) which mean that we won't be turning this into a fatal error anytime soon. Also remove the bug report link, it's not useful to continue getting the same reports.

Change-Id: I271871d68150417ac938f074d3730cad4518e327
Test: treehugger
2020-03-02 20:36:06 +00:00
Colin Cross
aa812d122c Allow debugging with SOONG_DELVE=<listen addr>
Allow running Soong in a headless delve debugger by passing
SOONG_DELVE=<listen addr> in the environment.

Bug: 80165685
Test: SOONG_DELVE=:1234 m nothing
Change-Id: Icfc893c8a8354a9bbc99112d9c83259cb41906d1
2019-07-03 16:33:31 -07:00
Dan Willemsen
25e6f09c06 Add BUILD_BROKEN_USES_NETWORK
Some people apparently still talk to the network during their build.
Allow this temporarily with a BUILD_BROKEN_USES_NETWORK check.

Bug: 129992021
Test: attempt to talk to the network during the build with and without
      this flag.
Change-Id: Ifb967c656aa24c4599e7232d0f1b5a303b5bac52
2019-04-09 10:23:49 -07:00
Dan Willemsen
3a4dbd651f Fix nested minijail0 execution
We've got an internal testcase that uses minijail0 inside an Android.mk
rule. That was failing since we turned on the linux sandbox, as /proc
was mounted read-only, which prevented setting up the uid/gid mappings
for a child namespace.

Fixes: 122985455
Test: treehugger & forrest of breaking build
Change-Id: Ia77a91a7f4eeeb8a24e84075d8272287f5087587
2019-01-16 23:04:16 -08:00
Dan Willemsen
24024eafee Effectively disable network access during the build
This starts a new network namespace without any connections to the
outside.

Bug: 122270019
Test: USE_GOMA=true m libc
Test: treehugger
Test: add rule to use /usr/bin/wget, fails after this change
Change-Id: Iba262025ce0e4e3bef5c34c817cc678d6c61403b
2019-01-15 16:58:27 -08:00
Dan Willemsen
63663c6bc9 Implement linux sandboxing with nsjail
This really only initializes the sandbox, it does not attempt to change
the view of the filesystem, nor does it turn off networking.

Bug: 122270019
Test: m
Test: trigger nsjail check failure; lunch; m; cat out/soong.log
Test: USE_GOMA=true m libc
Change-Id: Ib291072dcee8247c7a15f5b6831295ead6e4fc22
2019-01-15 13:47:31 -08:00
Dan Willemsen
b2e6c2e571 Switch product configs from make to ckati
This speeds up dumping make variables from ~380ms using make to ~220ms
using ckati. It also means that we're consistently using the same parser
for builds (with the same .KATI_READONLY/etc extensions).

envsetup.sh (lunch) / other scripts still use make, changing those to go
through soong_ui will be a future change.

Test: m clean; m nothing
Test: USE_GOMA=true m nothing
Test: m PRODUCT-aosp_x86-sdk
Test: m APP-Calculator
Test: build/soong/build_test.bash -only-config  (on AOSP and internal master)
Change-Id: I6ca554de8de4955fb869001d06d29969b75751cc
2017-10-12 18:11:08 -07:00
Dan Willemsen
59fdf96fcf Split CleanSpec processing out of main Kati run
Instead of pairing the reading of CleanSpec.mk files with the reading of
Android.mk files, split them into separate, individually cachable steps.
This way we only read Android.mk files once after a clean/sync. We'll
still read the CleanSpec.mk files multiple times, but that's
significantly faster than reading all the Android.mk files.

This adds about 50ms if kati doesn't need to reread the CleanSpec.mk
files. Reading all the CleanSpec.mk files takes about a second.

Bug: 35970961
Test: m clean; m nothing; m nothing
Test: Add CleanSpec.mk line, see it executed.
Change-Id: I83bad15c50709510959d5b8b673a907b8aa7de82
2017-08-23 01:53:33 +00:00
Dan Willemsen
269a8c78e7 Add exec.Cmd wrapper for logging / sandboxing
Wrap os/exec.Cmd to use our Context and Config interfaces for automatic
logging and error handling. It also simplifies environment modification
based on the Config's environment.

This also adds sandboxing on Macs using sandbox-exec. A simple profile
is provided that only logs on violations, though multiproduct_kati on
AOSP has no violations. This isn't applied to ninja, only make / soong /
kati to start with. I measured <5% time increase in reading all
makefiles, and no noticable difference when kati doesn't regenerate.

I'd like to spin up a process to dump violation logs into our log file,
but the log reporting changed over the range of Mac versions that we
support, so that's going to be more complicated. Opening Console.app
works in all cases if you're local -- just search/filter for sandbox.

Linux sandboxing will be implemented later -- the sandbox definition is
opaque enough to support a different implementation.

Test: multiproduct_kati on AOSP master on Mac
Change-Id: I7046229333d0dcc8f426a493e0f7380828879f17
2017-05-05 16:25:40 -07:00