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[binutils-gdb] Create a PLT entry for R_386_PC32 in non-code sections

*** TEST RESULTS FOR COMMIT 4b627c18440f51077f8fd4c18adaa3919c3a373e ***

Author: H.J. Lu <hjl.tools@gmail.com>
Branch: master
Commit: 4b627c18440f51077f8fd4c18adaa3919c3a373e

Create a PLT entry for R_386_PC32 in non-code sections

Since something like ".long foo - ." may be used as pointer, we make
sure that PLT is used if foo is a function defined in a shared library.

bfd/

	PR ld/19031
	* elf32-i386.c (elf_i386_check_relocs): Set
	pointer_equality_needed for R_386_PC32 reloc in non-code
	sections.

ld/testsuite/

	PR ld/19031
	* ld-i386/i386.exp: Run PR ld/19031 test.
	* ld/testsuite/ld-i386/pr19031.out: New file.
	* ld/testsuite/ld-i386/pr19031a.c: Likewise.
	* ld/testsuite/ld-i386/pr19031b.S: Likewise.
	* ld/testsuite/ld-i386/pr19031c.c: Likewise.
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