e493ba6255
With old "medium" code model, we call a function with a pair of PCALAU12I and JIRL instructions. The assembler produces something like: 8: 1a00000c pcalau12i $t0, 0 8: R_LARCH_PCALA_HI20 g c: 4c000181 jirl $ra, $t0, 0 c: R_LARCH_PCALA_LO12 g The linker generates a "PLT entry" for data without any diagnostic. If "g" is a data symbol and ld with -shared option, it may load two instructions in the PLT. Without -shared option, loongarch_elf_adjust_dynamic_symbol can delete PLT entry. For R_LARCH_PCALA_HI20 relocation, linker only generate PLT entry for STT_FUNC and STT_GNU_IFUNC symbols.
21 lines
363 B
ArmAsm
21 lines
363 B
ArmAsm
# The first version medium codel model function call is: pcalau12i + jirl.
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# R_LARCH_PCALA_HI20 only need to generate PLT entry for function symbols.
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.text
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.globl a
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.data
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.align 2
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.type a, @object
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.size a, 4
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a:
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.word 1
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.text
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.align 2
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.globl test
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.type test, @function
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test:
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pcalau12i $r12,%pc_hi20(a)
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ld.w $r12,$r12,%pc_lo12(a)
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.size test, .-test
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