Unverified Commit 727ed11b authored by Ayke van Laethem's avatar Ayke van Laethem
Browse files

[AVR] Recognize the AVR architecture in lldb 

This commit adds AVR support to lldb. With this change, it can load a
binary and do basic things like dump a line table.

Not much else has been implemented, that should be done in later
changes.

Differential Revision: https://reviews.llvm.org/D73539
parent 86aae782

lldb/include/lldb/Utility/ArchSpec.h

+2 −0
Original line number Diff line number Diff line
@@ -188,6 +188,8 @@ public: 


    eCore_arc, // little endian ARC



    eCore_avr,



    eCore_wasm32,



    kNumCores,

lldb/source/Utility/ArchSpec.cpp

+4 −0
Original line number Diff line number Diff line
@@ -218,6 +218,8 @@ static const CoreDefinition g_core_definitions[] = { 
     ArchSpec::eCore_uknownMach64, "unknown-mach-64"},

    {eByteOrderLittle, 4, 2, 4, llvm::Triple::arc, ArchSpec::eCore_arc, "arc"},



    {eByteOrderLittle, 2, 2, 4, llvm::Triple::avr, ArchSpec::eCore_avr, "avr"},



    {eByteOrderLittle, 4, 1, 4, llvm::Triple::wasm32, ArchSpec::eCore_wasm32,

     "wasm32"},

};
@@ -448,6 +450,8 @@ static const ArchDefinitionEntry g_elf_arch_entries[] = { 
     LLDB_INVALID_CPUTYPE, 0xFFFFFFFFu, 0xFFFFFFFFu}, // HEXAGON

    {ArchSpec::eCore_arc, llvm::ELF::EM_ARC_COMPACT2, LLDB_INVALID_CPUTYPE,

     0xFFFFFFFFu, 0xFFFFFFFFu}, // ARC

    {ArchSpec::eCore_avr, llvm::ELF::EM_AVR, LLDB_INVALID_CPUTYPE,

     0xFFFFFFFFu, 0xFFFFFFFFu}, // AVR

};



static const ArchDefinition g_elf_arch_def = {

lldb/test/Shell/ObjectFile/ELF/avr-basic-info.yaml

0 → 100644
+30 −0
Original line number Diff line number Diff line 
# RUN: yaml2obj %s > %t

# RUN: lldb-test object-file %t | FileCheck %s

# CHECK: Plugin name: elf

# CHECK: Architecture: avr--

# CHECK: Executable: true

# CHECK: Stripped: false

# CHECK: Type: executable

# CHECK: Strata: user

# CHECK:   Name: .text

# CHECK-NEXT:   Type: code

# CHECK-NEXT:   Permissions: r-x

# CHECK-NEXT:   Thread specific: no

# CHECK-NEXT:   VM address: 0x0

# CHECK-NEXT:   VM size: 4

# CHECK-NEXT:   File size: 4



--- !ELF

FileHeader:

  Class:           ELFCLASS32

  Data:            ELFDATA2LSB

  Type:            ET_EXEC

  Machine:         EM_AVR

  Flags:           [ EF_AVR_ARCH_AVR1, EF_AVR_ARCH_AVR4 ]

Sections:

  - Name:            .text

    Type:            SHT_PROGBITS

    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]

    AddressAlign:    0x0000000000000001

    Content:         '0000FECF'

...