Re: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop -mgeneral-regs-only for AArch64 CLANGDWARF

Re: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop -mgeneral-regs-only for AArch64 CLANGDWARF

[Yeping Song]

Hi all,
I would like for this to be include in stable tag. Please help to review and merge this patch into stable release.
Thanks
Yepings


-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Yeping Song
Sent: Saturday, November 4, 2023 12:38 AM
To: devel@edk2.groups.io
Cc: Yeping Song (QUIC) <quic_yepings@quicinc.com>; Rebecca Cran <rebecca@bsdio.com>; Liming Gao <gaoliming@byosoft.com.cn>; Bob Feng <bob.c.feng@intel.com>; Yuwei Chen <yuwei.chen@intel.com>; Ard Biesheuvel <ardb+tianocore@kernel.org>; Leif Lindholm (QUIC) <quic_llindhol@quicinc.com>; Sami Mujawar <sami.mujawar@arm.com>
Subject: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop -mgeneral-regs-only for AArch64 CLANGDWARF

WARNING: This email originated from outside of Qualcomm. Please be wary of any links or attachments, and do not enable macros.

Commit 0df6c8c157af9 ("BaseTools/tools_def AARCH64:
avoid SIMD registers in XIP code")
adds -mgeneral-regs-only to GCC_AARCH64_CC_XIPFLAGS, in order to avoid a bug present in certain versions of GCC.
This was never a problem for clang.
That's given the history of what the problem is.
Then we can describe how we fix it:
Change *_CLANGDWARF_AARCH64_CC_XIPFLAGS to set the required -mstrict-align option instead of importing the whole GCC variable.

Signed-off-by: Yeping Song <quic_yepings@quicinc.com>
Cc: Rebecca Cran <rebecca@bsdio.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
---
 BaseTools/Conf/tools_def.template | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
index 5bd5283655ea..c34ecfd557c5 100755
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -2015,7 +2015,7 @@ DEFINE CLANGDWARF_AARCH64_DLINK_FLAGS  = DEF(CLANGDWARF_AARCH64_TARGET) DEF(GCC_
 *_CLANGDWARF_AARCH64_RC_FLAGS       = DEF(GCC_AARCH64_RC_FLAGS) DEF(GCC_AARCH64_RC_BTI_FLAGS)
 *_CLANGDWARF_AARCH64_VFRPP_FLAGS    = DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET) $(PLATFORM_FLAGS)
 *_CLANGDWARF_AARCH64_ASLPP_FLAGS    = DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET)
-*_CLANGDWARF_AARCH64_CC_XIPFLAGS    = DEF(GCC_AARCH64_CC_XIPFLAGS)
+*_CLANGDWARF_AARCH64_CC_XIPFLAGS    = -mstrict-align

   DEBUG_CLANGDWARF_AARCH64_CC_FLAGS    = DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O1
   DEBUG_CLANGDWARF_AARCH64_DLINK_FLAGS = DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -flto -Wl,-O1 -fuse-ld=lld -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-aarch64 -Wl,-plugin-opt=-pass-through=-llto-aarch64 -Wl,--no-pie,--no-relax
--
2.25.1








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Re: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop -mgeneral-regs-only for AArch64 CLANGDWARF

[Leif Lindholm]

Liming,

You reviewed this patch before the stable tag. Am I OK to stage a github 
PR for this change?

Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>

Regards,

Leif

On 2023-11-07 13:11, Yeping Song (QUIC) wrote:
> Hi all,
> I would like for this to be include in stable tag. Please help to review and merge this patch into stable release.
> Thanks
> Yepings
> 
> 
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Yeping Song
> Sent: Saturday, November 4, 2023 12:38 AM
> To: devel@edk2.groups.io
> Cc: Yeping Song (QUIC) <quic_yepings@quicinc.com>; Rebecca Cran <rebecca@bsdio.com>; Liming Gao <gaoliming@byosoft.com.cn>; Bob Feng <bob.c.feng@intel.com>; Yuwei Chen <yuwei.chen@intel.com>; Ard Biesheuvel <ardb+tianocore@kernel.org>; Leif Lindholm (QUIC) <quic_llindhol@quicinc.com>; Sami Mujawar <sami.mujawar@arm.com>
> Subject: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop -mgeneral-regs-only for AArch64 CLANGDWARF
> 
> WARNING: This email originated from outside of Qualcomm. Please be wary of any links or attachments, and do not enable macros.
> 
> Commit 0df6c8c157af9 ("BaseTools/tools_def AARCH64:
> avoid SIMD registers in XIP code")
> adds -mgeneral-regs-only to GCC_AARCH64_CC_XIPFLAGS, in order to avoid a bug present in certain versions of GCC.
> This was never a problem for clang.
> That's given the history of what the problem is.
> Then we can describe how we fix it:
> Change *_CLANGDWARF_AARCH64_CC_XIPFLAGS to set the required -mstrict-align option instead of importing the whole GCC variable.
> 
> Signed-off-by: Yeping Song <quic_yepings@quicinc.com>
> Cc: Rebecca Cran <rebecca@bsdio.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Bob Feng <bob.c.feng@intel.com>
> Cc: Yuwei Chen <yuwei.chen@intel.com>
> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> Cc: Leif Lindholm <quic_llindhol@quicinc.com>
> Cc: Sami Mujawar <sami.mujawar@arm.com>
> ---
>   BaseTools/Conf/tools_def.template | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
> index 5bd5283655ea..c34ecfd557c5 100755
> --- a/BaseTools/Conf/tools_def.template
> +++ b/BaseTools/Conf/tools_def.template
> @@ -2015,7 +2015,7 @@ DEFINE CLANGDWARF_AARCH64_DLINK_FLAGS  = DEF(CLANGDWARF_AARCH64_TARGET) DEF(GCC_
>   *_CLANGDWARF_AARCH64_RC_FLAGS       = DEF(GCC_AARCH64_RC_FLAGS) DEF(GCC_AARCH64_RC_BTI_FLAGS)
>   *_CLANGDWARF_AARCH64_VFRPP_FLAGS    = DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET) $(PLATFORM_FLAGS)
>   *_CLANGDWARF_AARCH64_ASLPP_FLAGS    = DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET)
> -*_CLANGDWARF_AARCH64_CC_XIPFLAGS    = DEF(GCC_AARCH64_CC_XIPFLAGS)
> +*_CLANGDWARF_AARCH64_CC_XIPFLAGS    = -mstrict-align
> 
>     DEBUG_CLANGDWARF_AARCH64_CC_FLAGS    = DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O1
>     DEBUG_CLANGDWARF_AARCH64_DLINK_FLAGS = DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -flto -Wl,-O1 -fuse-ld=lld -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-aarch64 -Wl,-plugin-opt=-pass-through=-llto-aarch64 -Wl,--no-pie,--no-relax
> --
> 2.25.1
> 
> 
> 
> 
> 
> 



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回复: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop -mgeneral-regs-only for AArch64 CLANGDWARF

[gaoliming via groups.io]

Leif:
  Sure. This patch can be merged for this stable tag. 

Thanks
Liming
> -----邮件原件-----
> 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Leif Lindholm
> 发送时间: 2023年11月7日 21:13
> 收件人: Yeping Song (QUIC) <quic_yepings@quicinc.com>;
> devel@edk2.groups.io; Liming Gao <gaoliming@byosoft.com.cn>
> 抄送: Rebecca Cran <rebecca@bsdio.com>; Bob Feng
> <bob.c.feng@intel.com>; Yuwei Chen <yuwei.chen@intel.com>; Ard
> Biesheuvel <ardb+tianocore@kernel.org>; Sami Mujawar
> <sami.mujawar@arm.com>; Kinney, Michael D <michael.d.kinney@intel.com>
> 主题: Re: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop
> -mgeneral-regs-only for AArch64 CLANGDWARF
> 
> Liming,
> 
> You reviewed this patch before the stable tag. Am I OK to stage a github
> PR for this change?
> 
> Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
> 
> Regards,
> 
> Leif
> 
> On 2023-11-07 13:11, Yeping Song (QUIC) wrote:
> > Hi all,
> > I would like for this to be include in stable tag. Please help to review and
> merge this patch into stable release.
> > Thanks
> > Yepings
> >
> >
> > -----Original Message-----
> > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Yeping
> Song
> > Sent: Saturday, November 4, 2023 12:38 AM
> > To: devel@edk2.groups.io
> > Cc: Yeping Song (QUIC) <quic_yepings@quicinc.com>; Rebecca Cran
> <rebecca@bsdio.com>; Liming Gao <gaoliming@byosoft.com.cn>; Bob Feng
> <bob.c.feng@intel.com>; Yuwei Chen <yuwei.chen@intel.com>; Ard
> Biesheuvel <ardb+tianocore@kernel.org>; Leif Lindholm (QUIC)
> <quic_llindhol@quicinc.com>; Sami Mujawar <sami.mujawar@arm.com>
> > Subject: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop
> -mgeneral-regs-only for AArch64 CLANGDWARF
> >
> > WARNING: This email originated from outside of Qualcomm. Please be wary
> of any links or attachments, and do not enable macros.
> >
> > Commit 0df6c8c157af9 ("BaseTools/tools_def AARCH64:
> > avoid SIMD registers in XIP code")
> > adds -mgeneral-regs-only to GCC_AARCH64_CC_XIPFLAGS, in order to avoid
> a bug present in certain versions of GCC.
> > This was never a problem for clang.
> > That's given the history of what the problem is.
> > Then we can describe how we fix it:
> > Change *_CLANGDWARF_AARCH64_CC_XIPFLAGS to set the required
> -mstrict-align option instead of importing the whole GCC variable.
> >
> > Signed-off-by: Yeping Song <quic_yepings@quicinc.com>
> > Cc: Rebecca Cran <rebecca@bsdio.com>
> > Cc: Liming Gao <gaoliming@byosoft.com.cn>
> > Cc: Bob Feng <bob.c.feng@intel.com>
> > Cc: Yuwei Chen <yuwei.chen@intel.com>
> > Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> > Cc: Leif Lindholm <quic_llindhol@quicinc.com>
> > Cc: Sami Mujawar <sami.mujawar@arm.com>
> > ---
> >   BaseTools/Conf/tools_def.template | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/BaseTools/Conf/tools_def.template
> b/BaseTools/Conf/tools_def.template
> > index 5bd5283655ea..c34ecfd557c5 100755
> > --- a/BaseTools/Conf/tools_def.template
> > +++ b/BaseTools/Conf/tools_def.template
> > @@ -2015,7 +2015,7 @@ DEFINE CLANGDWARF_AARCH64_DLINK_FLAGS
> = DEF(CLANGDWARF_AARCH64_TARGET) DEF(GCC_
> >   *_CLANGDWARF_AARCH64_RC_FLAGS       =
> DEF(GCC_AARCH64_RC_FLAGS) DEF(GCC_AARCH64_RC_BTI_FLAGS)
> >   *_CLANGDWARF_AARCH64_VFRPP_FLAGS    =
> DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET)
> $(PLATFORM_FLAGS)
> >   *_CLANGDWARF_AARCH64_ASLPP_FLAGS    =
> DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET)
> > -*_CLANGDWARF_AARCH64_CC_XIPFLAGS    =
> DEF(GCC_AARCH64_CC_XIPFLAGS)
> > +*_CLANGDWARF_AARCH64_CC_XIPFLAGS    = -mstrict-align
> >
> >     DEBUG_CLANGDWARF_AARCH64_CC_FLAGS    =
> DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O1
> >     DEBUG_CLANGDWARF_AARCH64_DLINK_FLAGS =
> DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -flto -Wl,-O1 -fuse-ld=lld
> -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-aarch64
> -Wl,-plugin-opt=-pass-through=-llto-aarch64 -Wl,--no-pie,--no-relax
> > --
> > 2.25.1
> >
> >
> >
> >
> >
> >
> 
> 
> 
> 
> 





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Re: 回复: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop -mgeneral-regs-only for AArch64 CLANGDWARF

[Leif Lindholm]

Thanks!

https://github.com/tianocore/edk2/pull/5023 raised.

/
    Leif

On Thu, Nov 09, 2023 at 21:42:38 +0800, gaoliming via groups.io wrote:
> Leif:
>   Sure. This patch can be merged for this stable tag. 
> 
> Thanks
> Liming
> > -----邮件原件-----
> > 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Leif Lindholm
> > 发送时间: 2023年11月7日 21:13
> > 收件人: Yeping Song (QUIC) <quic_yepings@quicinc.com>;
> > devel@edk2.groups.io; Liming Gao <gaoliming@byosoft.com.cn>
> > 抄送: Rebecca Cran <rebecca@bsdio.com>; Bob Feng
> > <bob.c.feng@intel.com>; Yuwei Chen <yuwei.chen@intel.com>; Ard
> > Biesheuvel <ardb+tianocore@kernel.org>; Sami Mujawar
> > <sami.mujawar@arm.com>; Kinney, Michael D <michael.d.kinney@intel.com>
> > 主题: Re: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop
> > -mgeneral-regs-only for AArch64 CLANGDWARF
> > 
> > Liming,
> > 
> > You reviewed this patch before the stable tag. Am I OK to stage a github
> > PR for this change?
> > 
> > Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
> > 
> > Regards,
> > 
> > Leif
> > 
> > On 2023-11-07 13:11, Yeping Song (QUIC) wrote:
> > > Hi all,
> > > I would like for this to be include in stable tag. Please help to review and
> > merge this patch into stable release.
> > > Thanks
> > > Yepings
> > >
> > >
> > > -----Original Message-----
> > > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Yeping
> > Song
> > > Sent: Saturday, November 4, 2023 12:38 AM
> > > To: devel@edk2.groups.io
> > > Cc: Yeping Song (QUIC) <quic_yepings@quicinc.com>; Rebecca Cran
> > <rebecca@bsdio.com>; Liming Gao <gaoliming@byosoft.com.cn>; Bob Feng
> > <bob.c.feng@intel.com>; Yuwei Chen <yuwei.chen@intel.com>; Ard
> > Biesheuvel <ardb+tianocore@kernel.org>; Leif Lindholm (QUIC)
> > <quic_llindhol@quicinc.com>; Sami Mujawar <sami.mujawar@arm.com>
> > > Subject: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop
> > -mgeneral-regs-only for AArch64 CLANGDWARF
> > >
> > > WARNING: This email originated from outside of Qualcomm. Please be wary
> > of any links or attachments, and do not enable macros.
> > >
> > > Commit 0df6c8c157af9 ("BaseTools/tools_def AARCH64:
> > > avoid SIMD registers in XIP code")
> > > adds -mgeneral-regs-only to GCC_AARCH64_CC_XIPFLAGS, in order to avoid
> > a bug present in certain versions of GCC.
> > > This was never a problem for clang.
> > > That's given the history of what the problem is.
> > > Then we can describe how we fix it:
> > > Change *_CLANGDWARF_AARCH64_CC_XIPFLAGS to set the required
> > -mstrict-align option instead of importing the whole GCC variable.
> > >
> > > Signed-off-by: Yeping Song <quic_yepings@quicinc.com>
> > > Cc: Rebecca Cran <rebecca@bsdio.com>
> > > Cc: Liming Gao <gaoliming@byosoft.com.cn>
> > > Cc: Bob Feng <bob.c.feng@intel.com>
> > > Cc: Yuwei Chen <yuwei.chen@intel.com>
> > > Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> > > Cc: Leif Lindholm <quic_llindhol@quicinc.com>
> > > Cc: Sami Mujawar <sami.mujawar@arm.com>
> > > ---
> > >   BaseTools/Conf/tools_def.template | 2 +-
> > >   1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/BaseTools/Conf/tools_def.template
> > b/BaseTools/Conf/tools_def.template
> > > index 5bd5283655ea..c34ecfd557c5 100755
> > > --- a/BaseTools/Conf/tools_def.template
> > > +++ b/BaseTools/Conf/tools_def.template
> > > @@ -2015,7 +2015,7 @@ DEFINE CLANGDWARF_AARCH64_DLINK_FLAGS
> > = DEF(CLANGDWARF_AARCH64_TARGET) DEF(GCC_
> > >   *_CLANGDWARF_AARCH64_RC_FLAGS       =
> > DEF(GCC_AARCH64_RC_FLAGS) DEF(GCC_AARCH64_RC_BTI_FLAGS)
> > >   *_CLANGDWARF_AARCH64_VFRPP_FLAGS    =
> > DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET)
> > $(PLATFORM_FLAGS)
> > >   *_CLANGDWARF_AARCH64_ASLPP_FLAGS    =
> > DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET)
> > > -*_CLANGDWARF_AARCH64_CC_XIPFLAGS    =
> > DEF(GCC_AARCH64_CC_XIPFLAGS)
> > > +*_CLANGDWARF_AARCH64_CC_XIPFLAGS    = -mstrict-align
> > >
> > >     DEBUG_CLANGDWARF_AARCH64_CC_FLAGS    =
> > DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O1
> > >     DEBUG_CLANGDWARF_AARCH64_DLINK_FLAGS =
> > DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -flto -Wl,-O1 -fuse-ld=lld
> > -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-aarch64
> > -Wl,-plugin-opt=-pass-through=-llto-aarch64 -Wl,--no-pie,--no-relax
> > > --
> > > 2.25.1
> > >
> > >
> > >
> > >
> > >
> > >
> > 
> > 
> > 
> > 
> > 
> 
> 
> 
> 
> 
> 
> 
> 


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Re: 回复: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop -mgeneral-regs-only for AArch64 CLANGDWARF

[Michael D Kinney]

Merged:
https://github.com/tianocore/edk2/pull/5023
https://github.com/tianocore/edk2/commit/e077ccff6d0f2e8c3fc44b3e2ab71aff66927c3b

Mike


> -----Original Message-----
> From: Leif Lindholm <quic_llindhol@quicinc.com>
> Sent: Thursday, November 9, 2023 6:39 AM
> To: devel@edk2.groups.io; Gao, Liming <gaoliming@byosoft.com.cn>
> Cc: 'Yeping Song (QUIC)' <quic_yepings@quicinc.com>; 'Rebecca Cran'
> <rebecca@bsdio.com>; Feng, Bob C <bob.c.feng@intel.com>; Chen,
> Christine <yuwei.chen@intel.com>; 'Ard Biesheuvel'
> <ardb+tianocore@kernel.org>; 'Sami Mujawar' <sami.mujawar@arm.com>;
> Kinney, Michael D <michael.d.kinney@intel.com>
> Subject: Re: 回复: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop -
> mgeneral-regs-only for AArch64 CLANGDWARF
> 
> Thanks!
> 
> https://github.com/tianocore/edk2/pull/5023 raised.
> 
> /
>     Leif
> 
> On Thu, Nov 09, 2023 at 21:42:38 +0800, gaoliming via groups.io wrote:
> > Leif:
> >   Sure. This patch can be merged for this stable tag.
> >
> > Thanks
> > Liming
> > > -----邮件原件-----
> > > 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Leif
> Lindholm
> > > 发送时间: 2023年11月7日 21:13
> > > 收件人: Yeping Song (QUIC) <quic_yepings@quicinc.com>;
> > > devel@edk2.groups.io; Liming Gao <gaoliming@byosoft.com.cn>
> > > 抄送: Rebecca Cran <rebecca@bsdio.com>; Bob Feng
> > > <bob.c.feng@intel.com>; Yuwei Chen <yuwei.chen@intel.com>; Ard
> > > Biesheuvel <ardb+tianocore@kernel.org>; Sami Mujawar
> > > <sami.mujawar@arm.com>; Kinney, Michael D
> <michael.d.kinney@intel.com>
> > > 主题: Re: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop
> > > -mgeneral-regs-only for AArch64 CLANGDWARF
> > >
> > > Liming,
> > >
> > > You reviewed this patch before the stable tag. Am I OK to stage a
> github
> > > PR for this change?
> > >
> > > Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
> > >
> > > Regards,
> > >
> > > Leif
> > >
> > > On 2023-11-07 13:11, Yeping Song (QUIC) wrote:
> > > > Hi all,
> > > > I would like for this to be include in stable tag. Please help
> to review and
> > > merge this patch into stable release.
> > > > Thanks
> > > > Yepings
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of
> Yeping
> > > Song
> > > > Sent: Saturday, November 4, 2023 12:38 AM
> > > > To: devel@edk2.groups.io
> > > > Cc: Yeping Song (QUIC) <quic_yepings@quicinc.com>; Rebecca Cran
> > > <rebecca@bsdio.com>; Liming Gao <gaoliming@byosoft.com.cn>; Bob
> Feng
> > > <bob.c.feng@intel.com>; Yuwei Chen <yuwei.chen@intel.com>; Ard
> > > Biesheuvel <ardb+tianocore@kernel.org>; Leif Lindholm (QUIC)
> > > <quic_llindhol@quicinc.com>; Sami Mujawar <sami.mujawar@arm.com>
> > > > Subject: [edk2-devel] [PATCH 1/1] BaseTools/tools_def: drop
> > > -mgeneral-regs-only for AArch64 CLANGDWARF
> > > >
> > > > WARNING: This email originated from outside of Qualcomm. Please
> be wary
> > > of any links or attachments, and do not enable macros.
> > > >
> > > > Commit 0df6c8c157af9 ("BaseTools/tools_def AARCH64:
> > > > avoid SIMD registers in XIP code")
> > > > adds -mgeneral-regs-only to GCC_AARCH64_CC_XIPFLAGS, in order to
> avoid
> > > a bug present in certain versions of GCC.
> > > > This was never a problem for clang.
> > > > That's given the history of what the problem is.
> > > > Then we can describe how we fix it:
> > > > Change *_CLANGDWARF_AARCH64_CC_XIPFLAGS to set the required
> > > -mstrict-align option instead of importing the whole GCC variable.
> > > >
> > > > Signed-off-by: Yeping Song <quic_yepings@quicinc.com>
> > > > Cc: Rebecca Cran <rebecca@bsdio.com>
> > > > Cc: Liming Gao <gaoliming@byosoft.com.cn>
> > > > Cc: Bob Feng <bob.c.feng@intel.com>
> > > > Cc: Yuwei Chen <yuwei.chen@intel.com>
> > > > Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> > > > Cc: Leif Lindholm <quic_llindhol@quicinc.com>
> > > > Cc: Sami Mujawar <sami.mujawar@arm.com>
> > > > ---
> > > >   BaseTools/Conf/tools_def.template | 2 +-
> > > >   1 file changed, 1 insertion(+), 1 deletion(-)
> > > >
> > > > diff --git a/BaseTools/Conf/tools_def.template
> > > b/BaseTools/Conf/tools_def.template
> > > > index 5bd5283655ea..c34ecfd557c5 100755
> > > > --- a/BaseTools/Conf/tools_def.template
> > > > +++ b/BaseTools/Conf/tools_def.template
> > > > @@ -2015,7 +2015,7 @@ DEFINE CLANGDWARF_AARCH64_DLINK_FLAGS
> > > = DEF(CLANGDWARF_AARCH64_TARGET) DEF(GCC_
> > > >   *_CLANGDWARF_AARCH64_RC_FLAGS       =
> > > DEF(GCC_AARCH64_RC_FLAGS) DEF(GCC_AARCH64_RC_BTI_FLAGS)
> > > >   *_CLANGDWARF_AARCH64_VFRPP_FLAGS    =
> > > DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET)
> > > $(PLATFORM_FLAGS)
> > > >   *_CLANGDWARF_AARCH64_ASLPP_FLAGS    =
> > > DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET)
> > > > -*_CLANGDWARF_AARCH64_CC_XIPFLAGS    =
> > > DEF(GCC_AARCH64_CC_XIPFLAGS)
> > > > +*_CLANGDWARF_AARCH64_CC_XIPFLAGS    = -mstrict-align
> > > >
> > > >     DEBUG_CLANGDWARF_AARCH64_CC_FLAGS    =
> > > DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O1
> > > >     DEBUG_CLANGDWARF_AARCH64_DLINK_FLAGS =
> > > DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -flto -Wl,-O1 -fuse-ld=lld
> > > -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-aarch64
> > > -Wl,-plugin-opt=-pass-through=-llto-aarch64 -Wl,--no-pie,--no-
> relax
> > > > --
> > > > 2.25.1
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
> > 
> >
> >


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