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2022-07-22	i386: Don't allow GOTOFF relocation against IFUNC symbol for PIClinaro-local/ci/tcwg_kernel/llvm-release-arm-stable-defconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-stable-allyesconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-stable-allnoconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-stable-allmodconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-norov-defconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-norov-allyesconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-norov-allnoconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-norov-allmodconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-next-defconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-next-allyesconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-next-allnoconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-next-allmodconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-mainline-defconfig linaro-local/ci/tcwg_kernel/llvm-release-arm-mainline-allyesconfig 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linaro-local/ci/tcwg_bmk_llvm_apm/llvm-release-arm-spec2k6-Os linaro-local/ci/tcwg_bmk_llvm_apm/llvm-release-aarch64-spec2k6-Oz linaro-local/ci/tcwg_bmk_llvm_apm/llvm-release-aarch64-spec2k6-Os_LTO linaro-local/ci/tcwg_bmk_gnu_tx1/gnu-release-aarch64-spec2k6-O3_LTO linaro-local/ci/tcwg_bmk_gnu_tx1/gnu-release-aarch64-spec2k6-O3 linaro-local/ci/tcwg_bmk_gnu_tx1/gnu-release-aarch64-spec2k6-O2_LTO linaro-local/ci/tcwg_bmk_gnu_tx1/gnu-release-aarch64-spec2k6-O2 linaro-local/ci/tcwg_bmk_gnu_tk1/gnu-release-arm-spec2k6-O3_LTO linaro-local/ci/tcwg_bmk_gnu_tk1/gnu-release-arm-spec2k6-O3 linaro-local/ci/tcwg_bmk_gnu_tk1/gnu-release-arm-spec2k6-O2_LTO linaro-local/ci/tcwg_bmk_gnu_tk1/gnu-release-arm-spec2k6-O2 linaro-local/ci/tcwg_bmk_gnu_sq/gnu-release-aarch64-spec2k6-Os linaro-local/ci/tcwg_bmk_gnu_eabi_stm32/gnu_eabi-release-arm_eabi-coremark-Os linaro-local/ci/tcwg_bmk_gnu_eabi_stm32/gnu_eabi-release-arm_eabi-coremark-O3_LTO linaro-local/ci/tcwg_bmk_gnu_eabi_stm32/gnu_eabi-release-arm_eabi-coremark-O3 linaro-local/ci/tcwg_bmk_gnu_apm/gnu-release-arm-spec2k6-Os_LTO linaro-local/ci/tcwg_bmk_gnu_apm/gnu-release-arm-spec2k6-Os linaro-local/ci/tcwg_bmk_gnu_apm/gnu-release-aarch64-spec2k6-Os	H.J. Lu
	We can't use the PLT entry as the function address for PIC since the PIC register may not be set up properly for indirect call. bfd/ PR ld/27998 * elf32-i386.c (elf_i386_relocate_section): Don't allow GOTOFF relocation against IFUNC symbol for PIC. ld/ PR ld/27998 * testsuite/ld-i386/pr27998a.d: Replace -shared with -e bar. * testsuite/ld-i386/pr27998b.d: Expect a linker error. * testsuite/ld-ifunc/ifunc-2-i386-now.d: Updated. * testsuite/ld-ifunc/ifunc-2-local-i386-now.d: Likewise. * testsuite/ld-ifunc/ifunc-2-i386.s: Replace @GOTOFF with @GOT. * testsuite/ld-ifunc/ifunc-2-local-i386.s: Likewise. (cherry picked from commit 8f29211c3f0a6335c17e0a90396c146facf6dba4)
2021-06-19	x86: Count PLT for GOTOFF relocation against IFUNC symbol	H.J. Lu
	Since GOTOFF relocations against IFUNC symbols must go through PLT, set PLT reference count to 1 for GOTOFF relocation. bfd/ PR ld/27998 * elfxx-x86.c (elf_x86_allocate_dynrelocs): Count PLT for GOTOFF relocation against IFUNC symbols. (_bfd_x86_elf_adjust_dynamic_symbol): Likewise. ld/ PR ld/27998 * testsuite/ld-i386/i386.exp: Run PR ld/27998 tests. * testsuite/ld-i386/pr27998a.d: New file. * testsuite/ld-i386/pr27998a.s: Likewise. * testsuite/ld-i386/pr27998b.d: Likewise. * testsuite/ld-i386/pr27998b.s: Likewise.