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commit 30ba0375464f34e4bf8129f3d3dc14d0c09add17
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Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
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Date: Tue Jul 9 12:11:39 2019 +0100
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aarch64: simplify the DT_AARCH64_VARIANT_PCS handling code
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Remove unnecessary variant_pcs field: the dynamic tag can be checked
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directly.
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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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diff --git a/sysdeps/aarch64/dl-machine.h b/sysdeps/aarch64/dl-machine.h
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index d4494852b32b8783..b39eae4acf4086ee 100644
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--- a/sysdeps/aarch64/dl-machine.h
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+++ b/sysdeps/aarch64/dl-machine.h
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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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-
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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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diff --git a/sysdeps/aarch64/linkmap.h b/sysdeps/aarch64/linkmap.h
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index dd8597470c3d2174..6852f343a1efd150 100644
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--- a/sysdeps/aarch64/linkmap.h
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+++ b/sysdeps/aarch64/linkmap.h
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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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