8f21294897
Gas uses encoding DW_EH_PE_absptr for PIC, and gnu ld converts it to DW_EH_PE_sdata4|DW_EH_PE_pcrel. LLD doesn't have this workarounding, thus complains ``` relocation R_MIPS_32 cannot be used against local symbol; recompile with -fPIC relocation R_MIPS_64 cannot be used against local symbol; recompile with -fPIC ``` So, let's generates asm/obj files with `DW_EH_PE_sdata4|DW_EH_PE_pcrel` encoding. In fact, GNU ld supports such OBJs well. For N64, maybe we should use sdata8, while GNU ld doesn't support it well, and in fact sdata4 is enough now. So we just ignore the `Large` for `MCObjectFileInfo::initELFMCObjectFileInfo`. Maybe we should switch back to sdata8 once GNU LD supports it well. Fixes: #58377.
64 lines
2.5 KiB
LLVM
64 lines
2.5 KiB
LLVM
; RUN: llc -mtriple mips-unknown-linux-gnu -mattr=+micromips \
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; RUN: -relocation-model=static -O3 -filetype=obj -o - %s | \
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; RUN: llvm-readelf -r - | FileCheck %s --check-prefixes=STATIC
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; RUN: llc -mtriple mips-unknown-linux-gnu -mattr=+micromips \
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; RUN: -relocation-model=pic -O3 -filetype=obj -o - %s | \
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; RUN: llvm-readelf -r - | FileCheck %s --check-prefixes=PIC
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; RUN: llc -mtriple mips-unknown-linux-gnu -mattr=+micromips \
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; RUN: -relocation-model=static -O3 -filetype=obj -o - %s | \
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; RUN: llvm-objdump -s -j .gcc_except_table - | FileCheck %s --check-prefix=EXCEPT-TABLE-STATIC
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; RUN: llc -mtriple mips-unknown-linux-gnu -mattr=+micromips \
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; RUN: -relocation-model=pic -O3 -filetype=obj -o - %s | \
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; RUN: llvm-objdump -s -j .gcc_except_table - | FileCheck %s --check-prefix=EXCEPT-TABLE-PIC
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; STATIC-LABEL: Relocation section '.rel.eh_frame'
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; STATIC-DAG: R_MIPS_32 00000000 DW.ref.__gxx_personality_v0
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; STATIC-DAG: R_MIPS_32 00000000 .text
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; STATIC-DAG: R_MIPS_32 00000000 .gcc_except_table
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; PIC-LABEL: Relocation section '.rel.eh_frame'
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; PIC-DAG: R_MIPS_PC32 00000000 DW.ref.__gxx_personality_v0
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; PIC-DAG: R_MIPS_PC32 00000000 .L0
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; PIC-DAG: R_MIPS_PC32 00000000 .L0
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; CHECK-READELF: DW.ref.__gxx_personality_v0
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; CHECK-READELF-STATIC-NEXT: R_MIPS_32 00000000 .text
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; CHECK-READELF-PIC-NEXT: R_MIPS_PC32
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; CHECK-READELF-NEXT: .gcc_except_table
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; EXCEPT-TABLE-STATIC: 0000 ff9b1501 0c001400 00140e22 01221e00 ..........."."..
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; EXCEPT-TABLE-STATIC: 0010 00010000 00000000
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; EXCEPT-TABLE-PIC: 0000 ff9b1501 0c002c00 002c123e 013e2a00 ......,..,.>.>*.
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; EXCEPT-TABLE-PIC: 0010 00010000 00000000 ........
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@_ZTIi = external constant ptr
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define dso_local i32 @main() local_unnamed_addr personality ptr @__gxx_personality_v0 {
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entry:
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%exception.i = tail call ptr @__cxa_allocate_exception(i32 4) nounwind
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store i32 5, ptr %exception.i, align 16
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invoke void @__cxa_throw(ptr %exception.i, ptr @_ZTIi, ptr null) noreturn
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to label %.noexc unwind label %return
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.noexc:
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unreachable
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return:
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%0 = landingpad { ptr, i32 }
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catch ptr null
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%1 = extractvalue { ptr, i32 } %0, 0
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%2 = tail call ptr @__cxa_begin_catch(ptr %1) nounwind
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tail call void @__cxa_end_catch()
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ret i32 0
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}
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declare i32 @__gxx_personality_v0(...)
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declare ptr @__cxa_begin_catch(ptr) local_unnamed_addr
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declare void @__cxa_end_catch() local_unnamed_addr
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declare ptr @__cxa_allocate_exception(i32) local_unnamed_addr
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declare void @__cxa_throw(ptr, ptr, ptr) local_unnamed_addr
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