This change adds a size reporting module named pw_bloat. The module
uses Bloaty McBloatface to generate size report cards for binaries. It
provides a GN template which defines an action to perform a size diff
on a group of binary targets.
Example output:
simple_bloat
────────────
┌────────────────┬──────────────┬────────┬───────┬───────┐
│ Label │ Segment │ Before │ Delta │ After │
├════════════════┼══════════════┼════════┼═══════┼═══════┤
│ Add a loop │ EXAMPLE CODE │ 429 │ +32 │ 461 │
│ │ EXAMPLE RAM │ 576 │ +8 │ 584 │
├────────────────┼──────────────┼────────┼───────┼───────┤
│ Add a function │ EXAMPLE CODE │ 429 │ +16 │ 445 │
│ │ EXAMPLE RAM │ 576 │ +8 │ 584 │
└────────────────┴──────────────┴────────┴───────┴───────┘
Change-Id: I14b3d383ec450bc6d017bf5d0111e266b0a3c368
- Update host_clang to work on Linux: switch to -Map and --gc-sections
options
- Make pw_target_toolchain a build arg for Linux and macOS targets.
Default to gcc on Linux, clang on macOS.
- Rename x86_linux_gcc to host_gcc.
Change-Id: I72eef9ba9398a331f6567b68ad404092186eb15b
This change defines the build target system used by Pigweed, where the
build is configured using per-target globals imported from a target .gni
file. A single build arg specifying the path to the target file replaces
the previous args.
A default build variables file is provided in the Pigweed root. This
file defines and documents all of the build variables used by Pigweed.
A top-level targets directory is added to define the targets used by
Pigweed developers. Currently, only a "host" target is added, which
configures the build for a development system based on the host OS.
Change-Id: Ie62b8d41e5789bfe7fffe20462160142c79076c4
