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71 lines
2.6 KiB
71 lines
2.6 KiB
2 years ago
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commit acdcca72940e060270e4e54d9c0457398110f409
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Author: John David Anglin <danglin@gcc.gnu.org>
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Date: Mon Mar 30 21:58:06 2020 +0000
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Add new file missed in previous hppa commit.
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diff --git a/sysdeps/hppa/dl-runtime.c b/sysdeps/hppa/dl-runtime.c
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new file mode 100644
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index 0000000000000000..885a3f1837cbc56d
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--- /dev/null
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+++ b/sysdeps/hppa/dl-runtime.c
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@@ -0,0 +1,58 @@
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+/* On-demand PLT fixup for shared objects. HPPA version.
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+ Copyright (C) 2019 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, write to the Free
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+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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+ 02111-1307 USA. */
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+
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+/* Clear PA_GP_RELOC bit in relocation offset. */
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+#define reloc_offset (reloc_arg & ~PA_GP_RELOC)
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+#define reloc_index (reloc_arg & ~PA_GP_RELOC) / sizeof (PLTREL)
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+
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+#include <elf/dl-runtime.c>
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+
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+/* The caller has encountered a partially relocated function descriptor.
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+ The gp of the descriptor has been updated, but not the ip. We find
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+ the function descriptor again and compute the relocation offset and
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+ return that to the caller. The caller will continue on to call
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+ _dl_fixup with the relocation offset. */
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+
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+ElfW(Word)
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+attribute_hidden __attribute ((noinline)) ARCH_FIXUP_ATTRIBUTE
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+_dl_fix_reloc_arg (struct fdesc *fptr, struct link_map *l)
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+{
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+ Elf32_Addr l_addr, iplt, jmprel, end_jmprel, r_type;
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+ const Elf32_Rela *reloc;
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+
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+ l_addr = l->l_addr;
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+ jmprel = D_PTR(l, l_info[DT_JMPREL]);
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+ end_jmprel = jmprel + l->l_info[DT_PLTRELSZ]->d_un.d_val;
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+
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+ /* Look for the entry... */
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+ for (iplt = jmprel; iplt < end_jmprel; iplt += sizeof (Elf32_Rela))
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+ {
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+ reloc = (const Elf32_Rela *) iplt;
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+ r_type = ELF32_R_TYPE (reloc->r_info);
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+
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+ if (__builtin_expect (r_type == R_PARISC_IPLT, 1)
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+ && fptr == (struct fdesc *) (reloc->r_offset + l_addr))
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+ /* Found entry. Return the reloc offset. */
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+ return iplt - jmprel;
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+ }
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+
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+ /* Crash if we weren't passed a valid function pointer. */
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+ ABORT_INSTRUCTION;
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+ return 0;
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+}
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