mbox

[0/2] Sync with binutils for building binutils with LTO:

Message ID 20211113163353.5374-1-hjl.tools@gmail.com
Headers

Message

H.J. Lu Nov. 13, 2021, 4:33 p.m. UTC 
  Add the --enable-pgo-build[=lto] configure option.  When binutils+gdb
is not built together with GCC, --enable-pgo-build enables the PGO build:

1. First build with -fprofile-generate.
2. Use "make maybe-check-*" to generate profiling data and pass -i to make
to ignore errors when generating profiling data.
3. Use "make clean" to remove the previous build.
4. Rebuild with -fprofile-use.

H.J. Lu (2):
  Sync with binutils: GCC: Pass --plugin to AR and RANLIB
  Sync with binutils: Support the PGO build for binutils+gdb

 Makefile.in            |  68 ++++++++++++++++++--
 Makefile.tpl           |  63 +++++++++++++++++--
 config/gcc-plugin.m4   |  28 +++++++++
 configure              | 139 ++++++++++++++++++++++++++++++++++++++++-
 configure.ac           |  80 ++++++++++++++++++++++++
 libiberty/Makefile.in  |   5 +-
 libiberty/aclocal.m4   |   1 +
 libiberty/configure    |  37 +++++++++++
 libiberty/configure.ac |  12 ++++
 libtool.m4             |  25 +++++++-
 zlib/configure         |  29 ++++++++-
 11 files changed, 471 insertions(+), 16 deletions(-)