audk/BaseTools
Vitaly Cheptsov d4bc5378e0 BaseTools: Use SEH exceptions in CLANGPDB for IA32
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2628

This patch reduces the size of IA32 binaries by ensuring that
no .debug_frame / .eh_frame sections are generated through forcing
SEH exception model, which is already the default in clang for X64.

EDK II does not support exceptions, and in future we should disable
them instead of switching to some other variant. Currently this
is not possible due to the following LLVM bugs:

https://bugs.llvm.org/show_bug.cgi?id=45324
https://bugs.llvm.org/show_bug.cgi?id=45325

Upon applying this patch OvmfPkgIA32.dsc compilation in DEBUG mode
gets the following size decrease with clang 9.0.1.

Before: FV Space Information
SECFV [11%Full] 212992 total, 24512 used, 188480 free
PEIFV [22%Full] 917504 total, 203048 used, 714456 free
DXEFV [36%Full] 11534336 total, 4215672 used, 7318664 free
FVMAIN_COMPACT [37%Full] 3440640 total, 1287776 used, 2152864 free

After: FV Space Information
SECFV [10%Full] 212992 total, 22112 used, 190880 free
PEIFV [19%Full] 917504 total, 176392 used, 741112 free
DXEFV [31%Full] 11534336 total, 3657112 used, 7877224 free
FVMAIN_COMPACT [33%Full] 3440640 total, 1153896 used, 2286744 free

Cc: Liming Gao <liming.gao@intel.com>
Cc: Marvin H?user <mhaeuser@outlook.de>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Vitaly Cheptsov <vit9696@protonmail.com>
2020-04-08 14:24:09 +00:00
..
Bin BaseTools: Add YAML files with path env and tool extdeps 2019-11-11 13:01:53 -08:00
BinWrappers BaseTools: Script for converting .aml to .hex 2020-02-06 13:52:11 +00:00
Conf BaseTools: Use SEH exceptions in CLANGPDB for IA32 2020-04-08 14:24:09 +00:00
Plugin BaseTools/Plugin: Add HostBasedUnitTestRunner plugin 2020-02-07 19:18:53 +00:00
Scripts BaseTools/Scripts/PatchCheck.py: Do not use mailmap 2020-02-06 13:16:09 +00:00
Source BaseTools:GuidedSectionTools.txt is not generated correctly 2020-03-31 04:09:43 +00:00
Tests Revert "BaseTools:code of test python module is moved to edksetup" 2019-05-09 19:02:35 +08:00
UserManuals BaseTools/VfrCompile: Remove framework VFR support 2019-05-09 09:42:54 +08:00
.gitignore
BuildEnv BaseTools: Replace BSD License with BSD+Patent License 2019-04-09 09:10:20 -07:00
Edk2ToolsBuild.py BaseTools: Update Edk2ToolsBuild.py to use multiple threads on Linux 2020-04-07 01:22:04 +00:00
GNUmakefile BaseTools: Replace BSD License with BSD+Patent License 2019-04-09 09:10:20 -07:00
Makefile BaseTools: Replace BSD License with BSD+Patent License 2019-04-09 09:10:20 -07:00
ReadMe.txt BaseTools: Various typo 2019-02-14 10:02:28 +08:00
basetools_calling_path_env.yaml BaseTools: Add YAML files with path env and tool extdeps 2019-11-11 13:01:53 -08:00
basetools_path_env.yaml BaseTools: Add YAML files with path env and tool extdeps 2019-11-11 13:01:53 -08:00
get_vsvars.bat Add VS2019 Support on ToolSetup Batches 2019-09-23 22:42:41 +08:00
set_vsprefix_envs.bat BaseTools: Add RC_PATH define for VS2017/2019 2019-11-11 13:01:46 -08:00
toolsetup.bat Add VS2019 Support on ToolSetup Batches 2019-09-23 22:42:41 +08:00

ReadMe.txt

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This directory contains the next generation of EDK II build tools and template files.
Templates are located in the Conf directory, while the tools executables for
Microsoft Windows 32-bit Operating Systems are located in the Bin\Win32 directory, other
directory contains tools source.

1. Build step to generate the binary tools.

=== Windows/Visual Studio Notes ===

To build the BaseTools, you should run the standard vsvars32.bat script
from your preferred Visual Studio installation or you can run get_vsvars.bat
to use latest automatically detected version.

In addition to this, you should set the following environment variables:

 * EDK_TOOLS_PATH - Path to the BaseTools sub directory under the edk2 tree
 * BASE_TOOLS_PATH - The directory where the BaseTools source is located.
   (It is the same directory where this README.txt is located.)

After this, you can run the toolsetup.bat file, which is in the same
directory as this file.  It should setup the remainder of the environment,
and build the tools if necessary.

Please also refer to the 'BuildNotes.txt' file for more information on
building under Windows.

=== Unix-like operating systems ===

To build on Unix-like operating systems, you only need to type 'make' in
the base directory of the project.

=== Ubuntu Notes ===

On Ubuntu, the following command should install all the necessary build
packages to build all the C BaseTools:

  sudo apt-get install build-essential uuid-dev

=== Python sqlite3 module ===
On Windows, the cx_freeze will not copy the sqlite3.dll to the frozen
binary directory (the same directory as build.exe and GenFds.exe).
Please copy it manually from <PythonHome>\DLLs.

The Python distributed with most recent Linux will have sqlite3 module
built in. If not, please install sqlit3 package separately.

26-OCT-2011