tree 325a7c76f89457bf29eab9d14a4799ce58f851ca
parent 1e4d13743318ecab6ceeb47497c11ea9d1f6a733
author Wyatt Hepler <hepler@google.com> 1625701032 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1625757201 +0000

pw_build: Use -ffile-prefix-map by default

By default, Clang and GCC use file paths directly as provided for debug
symbols and macros like __FILE__. This means that binaries produced on
different machines can be different and may include undesireable info
like usernames.

Clang and GCC provide the -ffile-prefix-map option to strip non-portable
prefixes from filenames. Add a config that applies -ffile-prefix-map to
Pigweed builds by default.

Change-Id: Icd0fc11b70130b1b0e3ec193b1d245c18a2112b8
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/52340
Reviewed-by: Rob Mohr <mohrr@google.com>
Commit-Queue: Wyatt Hepler <hepler@google.com>