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path: root/ArmPkg/Include/AsmMacroIoLibV8.h
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* ArmPkg/AsmMacroIoLibV8: Introduce ASM_FUNC_ALIGN()Marvin Häuser2023-04-201-0/+11
| | | | | | | | | | | | | | | | With the current ASM_FUNC() macro, there is no good way to declare an alignment constraint for a function. As ASM_FUNC() switches sections, declaring the constraint before the macro invocation applies it to the current location in the previous section. Declaring the constraint after the macro invocation lets the function label point to the location prior to alignment. Depending on toolchain behaviour, this may cause the label to point to alignment padding preceding the actual function definition. To address these issues, introduce the ASM_FUNC_ALIGN() macro, which declares the alignment constraint right before the function label. Signed-off-by: Marvin Häuser <mhaeuser@posteo.de> Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
* ArmPkg: Emit BTI opcodes when BTI codegen is enabledArd Biesheuvel2023-03-301-1/+2
| | | | | | | | | | | | | | | | When building with -mbranch-protection=bti, which affects the compiler codegen only, ensure that the assembler based codegen is aligned with this, by emitting the BTI C opcode at the start of each exported function. While most exported functions are not in fact ever called indirectly, whether or not this is the case is a property of the caller so annotating every exported function is a reasonable default. While at it, fix two occurrences in ArmPkg of exported functions that did not use the ASM_FUNC() macro. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com> Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
* ArmPkg: Apply uncrustify changesMichael Kubacki2021-12-071-3/+1
| | | | | | | | | | | | REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the ArmPkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Andrew Fish <afish@apple.com>
* ArmPkg: Fix Ecc error 8003Pierre Gondois2021-04-281-3/+3
| | | | | | | | | | | | | | | | | | This patch fixes the following Ecc reported error: The #ifndef at the start of an include file should have one postfix underscore, and no prefix underscore character Some include guards have been modified to match the name of the header file. Some comments have also been added on the closing '#endif'. Cc: Bret Barkelew <bret.barkelew@microsoft.com> Cc: Sean Brogan <sean.brogan@microsoft.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Sami Mujawar <sami.mujawar@arm.com> Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
* ArmPkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney2019-04-091-7/+1
| | | | | | | | | | | | | | | | | | | | https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
* ArmPkg: remove LoadConstantXxx() asm macrosArd Biesheuvel2016-10-281-30/+0
| | | | | | | | This is ancient cruft that is no longer used, so remove it. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
* ArmPkg: introduce ASM_FUNC, MOV32/MOV64 and ADRL/LDRL macrosArd Biesheuvel2016-08-111-1/+19
| | | | | | | | | | | | | | | | This introduces the ASM_FUNC() macro to annotate function entry points in assembler files. This allows us to add additional metadata that marks a function entry point as a function, and allows us to emit a .section directive for each function, which makes it possible for the linker to drop unreferenced code. In addition, introduce a couple of utility macros that we can use to clean up the code. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Eugene Cohen <eugene@hp.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
* ArmPkg/AsmMacroIoLibV8: remove undocumented assumption from ELx macrosArd Biesheuvel2016-03-221-8/+8
| | | | | | | | | | | | | | | The macros EL1_OR_EL2() and EL1_OR_EL2_OR_EL3() allow conditional execution of assembly sequences based on the current exception level, by jumping to caller supplied labels 1f, 2f or 3f. However, the jump to 1f is actually a fallthrough, which means the EL1 code needs to follow right after the macro invocation, and the 1f label is ignored. So let's fix this by making all jumps explicit. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> Reviewed-by: Eugene Cohen <eugene@hp.com>
* ArmPkg: remove SetPrimaryStack and InitializePrimaryStack macrosArd Biesheuvel2015-11-271-35/+0
| | | | | | | | | | | | The SetPrimaryStack and InitializePrimaryStack macros are no longer used now that we removed support for ArmPlatformGlobalVariableLib. So remove the various versions of them. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19004 6f19259b-4bc3-4df7-8a09-765794883524
* ArmPkg/AsmMacroIoLib: Add support for ARM Compiler 6.00Olivier Martin2014-06-031-52/+27
| | | | | | | | | Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15554 6f19259b-4bc3-4df7-8a09-765794883524
* ArmPkg: Replace single dead loop.Olivier Martin2014-03-011-12/+12
| | | | | | | | | | | | | | Several assembler macros use a loop at the label "dead" to trap an error. This is difficult to debug as there is no indication of how one arrived at the loop. This change replaces dead with distinct loops locally in the macro, which means the cause of the hang is detectable to the debugger. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15273 6f19259b-4bc3-4df7-8a09-765794883524
* ArmPkg/AsmMacroIoLibV8.h: Correct 32 bit accesses in asm macrosOlivier Martin2014-02-241-85/+20
| | | | | | | | | Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15257 6f19259b-4bc3-4df7-8a09-765794883524
* ArmPkg: Added Aarch64 supportHarry Liebel2013-07-181-0/+200
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Harry Liebel <Harry.Liebel@arm.com> Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14486 6f19259b-4bc3-4df7-8a09-765794883524
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