H.J. Lu 6f365fda85 elf: Add GNU_PROPERTY_1_NEEDED check ... If GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS is set on any input relocatable files: 1. Don't generate copy relocations. 2. Turn off extern_protected_data since it implies GNU_PROPERTY_NO_COPY_ON_PROTECTED. 3. Treate reference to protected symbols with indirect external access as local. 4. Set GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS on output. 5. When generating executable, clear this bit when there are non-GOT or non-PLT relocations in input relocatable files without the bit set. 6. Add -z [no]indirect-extern-access to control indirect external access. bfd/ * elf-bfd (elf_obj_tdata): Add has_indirect_extern_access. (elf_has_indirect_extern_access): New. * elf-properties.c (_bfd_elf_parse_gnu_properties): Set elf_has_indirect_extern_access and elf_has_no_copy_on_protected when seeing GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS. (elf_write_gnu_propertie): Add an argument to pass link_info. Set needed_1_p for GNU_PROPERTY_1_NEEDED in memory. (_bfd_elf_link_setup_gnu_properties): Handle GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS for -z indirect-extern-access. Set nocopyreloc to true and extern_protected_data to false for indirect external access. (_bfd_elf_convert_gnu_properties): Updated. * elf32-i386.c (elf_i386_check_relocs): Set non_got_ref_without_indirect_extern_access on legacy non-GOT or non-PLT references. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise. * elflink.c (_bfd_elf_symbol_refs_local_p): Return true for STV_PROTECTED symbols with indirect external access. * elfxx-x86.c (_bfd_x86_elf_adjust_dynamic_symbol): Clear indirect_extern_access for legacy non-GOT/non-PLT references. * elfxx-x86.h (elf_x86_link_hash_entry): Add non_got_ref_without_indirect_extern_access. include/ * bfdlink.h (bfd_link_info): Add indirect_extern_access and needed_1_p. Change nocopyreloc to int. ld/ * NEWS: Mention -z [no]indirect-extern-access * ld.texi: Document -z [no]indirect-extern-access * ldmain.c (main): Initialize link_info.indirect_extern_access to -1. * emulparams/extern_protected_data.sh: Support -z [no]indirect-extern-access. * testsuite/ld-elf/indirect-extern-access-1.rd: New file * testsuite/ld-elf/indirect-extern-access-1a.c: Likewise. * testsuite/ld-elf/indirect-extern-access-1b.c: Likewise. * testsuite/ld-elf/indirect-extern-access-2.rd: Likewise. * testsuite/ld-elf/indirect-extern-access-2a.c: Likewise. * testsuite/ld-elf/indirect-extern-access-2b.c: Likewise. * testsuite/ld-elf/indirect-extern-access-3.rd: Likewise. * testsuite/ld-elf/indirect-extern-access.S: Likewise. * testsuite/ld-elf/property-1_needed-1b.d: Likewise. * testsuite/ld-elf/property-1_needed-1c.d: Likewise. * testsuite/ld-x86-64/indirect-extern-access.rd: Likewise. * testsuite/ld-x86-64/protected-data-1.h: Likewise. * testsuite/ld-x86-64/protected-data-1a.c: Likewise. * testsuite/ld-x86-64/protected-data-1b.c: Likewise. * testsuite/ld-x86-64/protected-data-2a.S: Likewise. * testsuite/ld-x86-64/protected-data-2b.S: Likewise. * testsuite/ld-x86-64/protected-func-2a.S: Likewise. * testsuite/ld-x86-64/protected-func-2b.S: Likewise. * testsuite/ld-x86-64/protected-func-2c.c: Likewise. * testsuite/ld-elf/linux-x86.exp: Run test with GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS. * testsuite/ld-x86-64/x86-64.exp: Run tests for protected function and data with indirect external access.		2021-07-08 18:14:31 -07:00
..
config	ld: Cache and reuse the IR archive file descriptor	2021-07-05 08:51:35 -07:00
ld-aarch64
ld-alpha
ld-arc
ld-arm
ld-auto-import
ld-avr
ld-bootstrap	ld: Limit cache size and add --max-cache-size=SIZE	2021-07-08 09:59:28 -07:00
ld-bpf
ld-cdtest
ld-checks
ld-cris
ld-crx
ld-csky
ld-ctf
ld-cygwin
ld-d10v
ld-discard
ld-dynamic
ld-elf	elf: Add GNU_PROPERTY_1_NEEDED check	2021-07-08 18:14:31 -07:00
ld-elfcomm
ld-elfvers
ld-elfvsb
ld-elfweak
ld-fastcall
ld-frv
ld-gc
ld-h8300
ld-i386
ld-ia64
ld-ifunc
ld-libs
ld-linkonce
ld-m68hc11
ld-m68k
ld-mep
ld-metag
ld-mips-elf
ld-misc
ld-mmix
ld-mn10300
ld-msp430-elf
ld-nds32
ld-nios2
ld-or1k
ld-pdp11
ld-pe
ld-pie
ld-plugin	ld: Cache and reuse the IR archive file descriptor	2021-07-05 08:51:35 -07:00
ld-powerpc
ld-pru
ld-riscv-elf	elf/riscv: Fix relaxation with aliases [PR28021]	2021-07-06 15:49:03 +02:00
ld-s12z
ld-s390
ld-scripts
ld-selective
ld-sh
ld-shared
ld-size
ld-sparc
ld-spu
ld-srec
ld-tic6x
ld-tilegx
ld-tilepro
ld-undefined
ld-unique
ld-v850
ld-vax-elf
ld-visium
ld-vxworks
ld-x86-64	elf: Add GNU_PROPERTY_1_NEEDED check	2021-07-08 18:14:31 -07:00
ld-xc16x
ld-xstormy16
ld-xtensa
ld-z8k
ld-z80
lib
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