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aarch64: simplify the DT_AARCH64_VARIANT_PCS handling code
Remove unnecessary variant_pcs field: the dynamic tag can be checked directly. * sysdeps/aarch64/dl-machine.h (elf_machine_runtime_setup): Remove the DT_AARCH64_VARIANT_PCS check. (elf_machine_lazy_rel): Use l_info[DT_AARCH64 (VARIANT_PCS)]. * sysdeps/aarch64/linkmap.h (struct link_map_machine): Remove variant_pcs.
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@ -1,3 +1,11 @@
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2019-07-10 Szabolcs Nagy <szabolcs.nagy@arm.com>
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* sysdeps/aarch64/dl-machine.h (elf_machine_runtime_setup): Remove the
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DT_AARCH64_VARIANT_PCS check.
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(elf_machine_lazy_rel): Use l_info[DT_AARCH64 (VARIANT_PCS)].
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* sysdeps/aarch64/linkmap.h (struct link_map_machine): Remove
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variant_pcs.
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2019-07-10 Andreas Schwab <schwab@suse.de>
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[BZ #23352]
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@ -105,10 +105,6 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
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}
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}
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/* Check if STO_AARCH64_VARIANT_PCS needs to be handled. */
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if (l->l_info[DT_AARCH64 (VARIANT_PCS)])
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l->l_mach.variant_pcs = 1;
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return lazy;
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}
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@ -402,7 +398,7 @@ elf_machine_lazy_rel (struct link_map *map,
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return;
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}
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if (__glibc_unlikely (map->l_mach.variant_pcs))
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if (__glibc_unlikely (map->l_info[DT_AARCH64 (VARIANT_PCS)] != NULL))
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{
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/* Check the symbol table for variant PCS symbols. */
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const Elf_Symndx symndx = ELFW (R_SYM) (reloc->r_info);
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@ -20,5 +20,4 @@ struct link_map_machine
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{
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ElfW(Addr) plt; /* Address of .plt */
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void *tlsdesc_table; /* Address of TLS descriptor hash table. */
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int variant_pcs; /* If set, PLT calls may follow a variant PCS. */
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};
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