Fix gcc: warning:
-x c after last input file has no effect
These kind of flag can only affect the source code after them.
For the build command in build_rule.template, we have no other source code or object after these two flag.
It seems we don't need them here.
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Signed-off-by: JessyX Wu <jessyx.wu@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
This reverts commit ff36b2550f.
Has no effect because GCC_IA32_CC_FLAGS and GCC_X64_CC_FLAGS are unused.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
The ebp/rbp register can either be used for the frame pointer or
as general purpose register. With gcc (and clang) this depends
on the -f(no-)omit-frame-pointer switch.
This patch updates tools_def.template to explicitly set the compiler
option and also add a define to allow conditionally compile code.
The new define is used to fix stack switching in TemporaryRamMigration.
The ebp/rbp must not be touched when the compiler can use it as general
purpose register. With version 12 gcc starts actually using the
register, so changing it leads to firmware crashes in some
configurations.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3934
Reported-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
RVCT is obsolete and no longer used.
Remove support for it.
Signed-off-by: Rebecca Cran <quic_rcran@quicinc.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
In the Dynamic-Library-File template, add missing output file
declarations. These files are generated by the template and other rules
explicitly depend on them.
This change resolves missing dependency issues we encountered while
running a recursive make with job control.
Signed-off-by: Jake Garver <jake@nvidia.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
Building with the CLANG35 and CLANG38 toolset fails because of variables
which are set but not otherwise used in the RELEASE build.
GCC added -Wno-unused-but-set-variable back in 2016, and later added
-Wno-unused-const-variable. Add those to CLANG35_WARNING_OVERRIDES and
CLANG38_WARNING_OVERRIDES.
Signed-off-by: Rebecca Cran <quic_rcran@quicinc.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
BZ:https://bugzilla.tianocore.org/show_bug.cgi?id=1603
LLVM/CLANG8 formal release http://releases.llvm.org/download.html#8.0.0
It can be downloaded and installed in Windows/Linux/Mac OS.
CLANG8ELF tool chain is added to generate ELF image, and convert to PE/COFF.
On Windows OS, set CLANG_HOST_BIN=n, set CLANG8_BIN=LLVM installed directory
For example:
set CLANG_HOST_BIN=n # use windows nmake
set CLANG8_BIN=C:\Program Files\LLVM\bin\
On Linux/Mac, set CLANG8_BIN=LLVM installed directory
This tool chain can be used to compile the firmware code. On windows OS,
Visual Studio is still required to compile BaseTools C tools and nmake.exe.
On Linux/Mac OS, gcc is used to compile BaseTools C tools. make is used
for makefile.
This tool chain is verified on OVMF Ia32, X64 and Ia32X64 to boot Shell.
This tool chain is verified in Windows/Linux and Mac OS.
Signed-off-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Feng Bob C <bob.c.feng@intel.com>
LLVM/CLANG doesn't support resource section generation when ELF image generated.
Signed-off-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Feng Bob C <bob.c.feng@intel.com>
GCC48_ALL_CC_FLAGS has no dependency on GCC_ALL_CC_FLAGS.
By definition, there should be such dependency.
The outcomes of this patch is that GCC48_ALL_CC_FLAGS and
other dependent configurations will inherit from the
additional "-Os" flag.
The "-Os" flag optimizes a build in size, not breaking any
build. In a gcc command line, the last optimization flag
has precedence. This means that this "-Os" flag will be
overriden by a more specific optimization configuration,
provided that this more specific flag is appended at the
end of the CC_FLAGS.
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Suggested-by: Tomas Pilar <Tomas.Pilar@arm.com>
Reviewed-by: Bob Feng<bob.c.feng@intel.com>
By default, gcc allows void* pointer arithmetic.
This is a GCC extension.
However:
- the C reference manual states that void*
pointer "cannot be operands of addition
or subtraction operators". Cf s5.3.1
"Generic Pointers";
- Visual studio compiler treat such operation as
an error.
To prevent such pointer arithmetic, the "-Wpointer-arith"
flag should be set for all GCC versions.
The "-Wpointer-arith" allows to:
"Warn about anything that depends on the "size of"
a function type or of void. GNU C assigns these
types a size of 1, for convenience in calculations
with void * pointers and pointers to functions."
This flag is available since GCC2.95.3 which came out in 2001.
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Bob Feng<bob.c.feng@intel.com>
SetupGit.py sets the git config option diff.orderFile to
{edk2 directory}/BaseTools/Conf/diff.order, to override the default order
in which files are shown in a diff/patch/whatever. This is in imitation
of what is done manually in Laszlo's Unkempt Guide.
However, the version currently in the tree is in CRLF format, which makes
git interpret e.g. *.c as matching on *.c<CR>, finding no matches and
failing to apply the desired reordering. Note: this is true regardless of
whether running on Linux or Windows.
Convert the file to LF-only to make it work as expected.
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
The AmlToHex script and Posix/WindowsLike wrappers convert
an AML file to a .hex file, containing a C array storing
AML bytecode. This ".hex" file can then be included in a
C file, allowing to access the AML bytecode from this C
file.
The EDK2 build system doesn't allow to a depict dependency
orders between files of different languages. For instance,
in a module containing a ".c" file and a ".asl", the ".c"
file may or may not be built prior to the ".asl" file.
This prevents any inclusion of a generated ".hex" in a
".c" file since this later ".hex" file may or may not
have been created yet.
This patch modifies the AmlToC script to generate a C file
instead of a ".hex" file.
It also adds the generation of an intermediate ".amli" file
when compiling an ASL file, and adds a rule to convert this
".amli" to a C file.
This allows to generate a C file containing the AML bytecode
from an ASL file. This C file will then be handled by the EDK2
build system to generate an object file.
Thus, no file inclusion will be required anymore. The C file
requiring the AML bytecode as a C array, and the ASL file,
will be compiled independently. The C array must be defined
as an external symbol. The linker is resolving the
reference to the C array symbol.
To summarize, the flow goes as:
-1. ASL file is compiled to AML;
-2. AML file is copied to a ".amli" intermediate file;
-3. EDK2 build system applies the rule relevant to ".amli"
files. This is, calling the "AmlToC" script, generating
a C file from the ".amli" file;
-4. EDK2 build system applies the rule relevant to C files.
This is creating an object file.
-5. EDK2 build system links the object file containing the
AML bytecode with the object file requiring it.
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Suggested-by: Tomas Pilar <Tomas.Pilar@arm.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
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=45324https://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>
The "-tc" option of the iasl compiler allows to generate a
.hex file containing a C array storing AML bytecode.
An online discussion suggested that this "-tc" option
was specific to the iasl compiler and it shouldn't be relied
on. This conversation is available at:
https://edk2.groups.io/g/devel/topic/39786201#49659
A way to address this issue is to implement a compiler
independent script that takes an AML file as input, and
generates a .hex file.
This patch implements a Python script that converts an AML
file to a .hex file, containing a C array storing AML bytecode.
This scipt has been tested with the AML output from the
following compilers supported by the EDKII implementation:
* Intel ASL compiler
* Microsoft ASL compiler
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
The "--function-context" ("-W") option of git-diff displays the entire
body of a modified function, not just small modified hunks within the
function. It is useful for reviewers when the code changes to the function
are small, but they could affect, or depend on, control flow that is far
away in the same function.
Of course, the size of the displayed context can be controlled with the
"-U" option anyway, but such fixed-size contexts are usually either too
small, or too large, in the above scenario.
It turns out that "--function-context" does not work correctly for C
source files in edk2. In particular, labels for the goto instruction
(which the edk2 coding style places in the leftmost column) appear to
terminate "--function-context".
The "git" utility contains built-in hunk header patterns for the C and C++
languages. However, they do not take effect in edk2 because we don't
explicitly assign the "cpp" git-diff driver to our C files. The
gitattributes(5) manual explains that this is required:
> There are a few built-in patterns to make this easier, and
> tex is one of them, so you do not have to write the above in
> your configuration file (you still need to enable this with
> the attribute mechanism, via .gitattributes). The following
> built in patterns are available:
>
> [...]
>
> * cpp suitable for source code in the C and C++
> languages.
The key statement is the one in parentheses.
Grab the suffix lists from the [C-Code-File] and [Acpi-Table-Code-File]
sections of "BaseTools/Conf/build_rule.template", add "*.h" and "*.H", and
mark those as belonging to the "cpp" git-diff driver.
This change has a dramatic effect on the following command, for example:
$ git show -W 2ef0c27cb8
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200120094245.9010-1-lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Liming Gao <liming.gao@intel.com>
BZ:https://bugzilla.tianocore.org/show_bug.cgi?id=2423
That commit 13c5e34a1b introduces the first two UTF-8
characters (the quote ') in an otherwise all-ascii file.
In Conf\tools_def.template
There is tow lines of
Notes: Since this tool chain is obsolete, it doesn't enable
the compiler option for included header file list generation,
we replaces the two offending quotes by proper ascii quotes
The patch is going to fix this issue
Signed-off-by: Zhiju.Fan <zhijux.fan@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Bob Feng <bob.c.feng@intel.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
https://bugzilla.tianocore.org/show_bug.cgi?id=2315
Add use of RC_PATH define that provides the path to the resource
compiler that is typically provided in a Windows SDK. The path
changes with different Windows SDK releases. This define is set
to the WINSDK_PATH_FOR_RC_EXE environment variable. This
environment variable must be set to the path to the currently
installed resource compiler (rc.exe).
Update set_vsprefix_envs.bat to set WINSDK_PATH_FOR_RC_EXE
if a Windows SDK is detected.
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Before adding the git environment initialization script, add the
following files that will be pointed to after running said script:
- BaseTools/Conf/diff.order
- BaseTools/Conf/gitattributes
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
Microsoft ASL is not verified now.
So remove tool chain with ASL tool. They are: VS2008xASL,
VS2008x86xASL, VS2010xASL, VS2010x86xASL, VS2012xASL, VS2012x86xASL,
VS2013xASL, VS2013x86xASL, VS2015xASL, VS2015x86xASL and CYGGCCxASL.
https://bugzilla.tianocore.org/show_bug.cgi?id=1667
v2:Remove definitions of WIN_ASL_BIN, MS_ASL_OUTFLAGS and MS_ASL_FLAGS.
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
