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* [AArch64] Use hidden __GI__dl_argv in rtld startup codeSzabolcs Nagy2017-06-211-2/+2
| | | | | We rely on the symbol being locally defined so using extern symbol is not correct and the linker may complain about the relocations.
* PowerPC64 ELFv2 PPC64_OPT_LOCALENTRYAlan Modra2017-06-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ELFv2 functions with localentry:0 are those with a single entry point, ie. global entry == local entry, that have no requirement on r2 or r12 and guarantee r2 is unchanged on return. Such an external function can be called via the PLT without saving r2 or restoring it on return, avoiding a common load-hit-store for small functions. This patch implements the ld.so changes necessary for this optimization. ld.so needs to check that an optimized plt call sequence is in fact calling a function implemented with localentry:0, end emit a fatal error otherwise. The elf/testobj6.c change is to stop "error while loading shared libraries: expected localentry:0 `preload'" when running elf/preloadtest, which we'd get otherwise. * elf/elf.h (PPC64_OPT_LOCALENTRY): Define. * sysdeps/alpha/dl-machine.h (elf_machine_fixup_plt): Add refsym and sym parameters. Adjust callers. * sysdeps/aarch64/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/arm/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/generic/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/hppa/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/i386/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/ia64/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/m68k/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/microblaze/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/mips/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/nios2/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/s390/s390-32/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/s390/s390-64/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/sh/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/tile/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/x86_64/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/powerpc/powerpc64/dl-machine.c (_dl_error_localentry): New. (_dl_reloc_overflow): Increase buffser size. Formatting. * sysdeps/powerpc/powerpc64/dl-machine.h (ppc64_local_entry_offset): Delete reloc param, add refsym and sym. Check optimized plt call stubs for localentry:0 functions. Adjust callers. (elf_machine_fixup_plt, elf_machine_plt_conflict): Add refsym and sym parameters. Adjust callers. (_dl_reloc_overflow): Move attribute. (_dl_error_localentry): Declare. * elf/dl-runtime.c (_dl_fixup): Save original sym. Pass refsym and sym to elf_machine_fixup_plt. * elf/testobj6.c (preload): Call printf.
* Add ifunc support for aarch64.Steve Ellcey2017-03-151-0/+18
| | | | | | | | | | | * sysdeps/aarch64/dl-machine.h: Include cpu-features.c. (DL_PLATFORM_INIT): New define. (dl_platform_init): New function. * sysdeps/aarch64/ldsodefs.h: Include cpu-features.h. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c: New file. * sysdeps/unix/sysv/linux/aarch64/cpu-features.h: Likewise. * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/libc-start.c: Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2017-01-011-1/+1
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* Partial ILP32 support for aarch64.Steve Ellcey2016-11-281-88/+111
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * sysdeps/aarch64/crti.S: Add include of sysdep.h. (call_weak_fn): Use PTR_REG to get correct reg name in ILP32. * sysdeps/aarch64/dl-irel.h: Add include of sysdep.h. (elf_irela): Use AARCH64_R macro to get correct relocation in ILP32. * sysdeps/aarch64/dl-machine.h: Add include of sysdep.h. (elf_machine_load_address, RTLD_START, RTLD_START_1, RTLD_START, elf_machine_type_class, ELF_MACHINE_JMP_SLOT, elf_machine_rela, elf_machine_lazy_rel): Add ifdef's for ILP32 support. * sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_return, _dl_tlsdesc_return_lazy, _dl_tlsdesc_dynamic, _dl_tlsdesc_resolve_hold): Extend pointers in ILP32, use PTR_REG to get correct reg name for ILP32. * sysdeps/aarch64/dl-trampoline.S (ip01): New Macro. (RELA_SIZE): New Macro. (_dl_runtime_resolve, _dl_runtime_profile): Use new macros and PTR_REG to support ILP32. * sysdeps/aarch64/jmpbuf-unwind.h (_JMPBUF_CFA_UNWINDS_ADJ): Add cast for ILP32 mode. * sysdeps/aarch64/memcmp.S (memcmp): Extend arg pointers for ILP32 mode. * sysdeps/aarch64/memcpy.S (memmove, memcpy): Ditto. * sysdeps/aarch64/memset.S (__memset): Ditto. * sysdeps/aarch64/strchr.S (strchr): Ditto. * sysdeps/aarch64/strchrnul.S (__strchrnul): Ditto. * sysdeps/aarch64/strcmp.S (strcmp): Ditto. * sysdeps/aarch64/strcpy.S (strcpy): Ditto. * sysdeps/aarch64/strlen.S (__strlen): Ditto. * sysdeps/aarch64/strncmp.S (strncmp): Ditto. * sysdeps/aarch64/strnlen.S (strnlen): Ditto. * sysdeps/aarch64/strrchr.S (strrchr): Ditto. * sysdeps/unix/sysv/linux/aarch64/clone.S: Ditto. * sysdeps/unix/sysv/linux/aarch64/setcontext.S (__setcontext): Ditto. * sysdeps/unix/sysv/linux/aarch64/swapcontext.S (__swapcontext): Ditto. * sysdeps/aarch64/__longjmp.S (__longjmp): Extend pointers in ILP32, change PTR_MANGLE call to use register numbers instead of names. * sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Ditto. * sysdeps/aarch64/setjmp.S (__sigsetjmp): Extend arg pointers for ILP32 mode, change PTR_MANGLE calls to use register numbers. * sysdeps/aarch64/start.S (_start): Ditto. * sysdeps/aarch64/nptl/bits/pthreadtypes.h (__PTHREAD_RWLOCK_INT_FLAGS_SHARED): New define. (__SIZEOF_PTHREAD_ATTR_T, __SIZEOF_PTHREAD_MUTEX_T, __SIZEOF_PTHREAD_MUTEXATTR_T, __SIZEOF_PTHREAD_COND_T, __SIZEOF_PTHREAD_COND_COMPAT_T, __SIZEOF_PTHREAD_CONDATTR_T, __SIZEOF_PTHREAD_RWLOCK_T, __SIZEOF_PTHREAD_RWLOCKATTR_T, __SIZEOF_PTHREAD_BARRIER_T, __SIZEOF_PTHREAD_BARRIERATTR_T): Make defined values dependent on __ILP32__. * sysdeps/aarch64/nptl/bits/semaphore.h (__SIZEOF_SEM_T): Change define. (sem_t): Change __align type. * sysdeps/aarch64/sysdep.h (AARCH64_R, PTR_REG, PTR_LOG_SIZE, DELOUSE, PTR_SIZE): New Macros. (LDST_PCREL, LDST_GLOBAL) Update to use PTR_REG. * sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h (O_LARGEFILE): Set when in ILP32 mode. (F_GETLK64, F_SETLK64, F_SETLKW64): Only set in LP64 mode. * sysdeps/unix/sysv/linux/aarch64/dl-cache.h (DL_CACHE_DEFAULT_ID): Set elf flags for ILP32. (add_system_dir): Set ILP32 library directories. * sysdeps/unix/sysv/linux/aarch64/init-first.c (_libc_vdso_platform_setup): Set minimum kernel version for ILP32. * sysdeps/unix/sysv/linux/aarch64/ldconfig.h (SYSDEP_KNOWN_INTERPRETER_NAMES): Add ILP32 names. * sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (GET_PC, SET_PC): New Macros. * sysdeps/unix/sysv/linux/aarch64/sysdep.h: Handle ILP32 pointers.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2016-01-041-1/+1
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* [AArch64][BZ #17711] Fix extern protected data handlingSzabolcs Nagy2015-07-241-1/+2
| | | | | | | | | Fixes elf/tst-protected1a and elf/tst-protected1b tests. Depends on a gcc patch that makes protected visibility data non-local: https://gcc.gnu.org/ml/gcc-patches/2015-07/msg01871.html and on a binutils patch so R_*_GLOB_DAT relocs are used for it: https://sourceware.org/ml/binutils/2015-07/msg00246.html
* Update copyright dates with scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
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* AArch64: Reformat inline-asm in elf_machine_load_addressAndrew Pinski2014-11-211-9/+12
| | | | | | | | | | | | | | | | | This patch reformats the inline-asm in elf_machine_load_address so it is easier to change only part of the inline-asm. That is using string concatenating instead of string continuation. Also document why this inline-asm works - it depends on the 32bit relocation being resolved at link time. ChangeLog: 2014-11-21 Will Newton <will.newton@linaro.org> Andrew Pinski <andrew.pinski@caviumnetworks.com> * sysdeps/aarch64/dl-machine.h (elf_machine_load_address): Refactor inline-asm. Also add comment.
* AArch64: Use ELF macros rather than Elf64 throughoutWill Newton2014-11-211-2/+2
| | | | | | | | | | | | | | | | | Using the macros for ELF types is required for adding ILP32 support. In the standard AArch64 configuration this makes no difference to the types used. ChangeLog: 2014-11-21 Will Newton <will.newton@linaro.org> Andrew Pinski <andrew.pinski@caviumnetworks.com> * sysdeps/aarch64/bits/link.h (la_aarch64_gnu_pltenter): Use ElfW macro instead of hardcoded Elf64 types. (la_aarch64_gnu_pltenter): Likewise. * sysdeps/aarch64/dl-machine.h (elf_machine_runtime_setup): Use ElfW(Addr).
* AArch64: Update relocations for ILP32Will Newton2014-11-211-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | The latest version of the binutils ELF header defines a new set of dynamic relocations for ILP32 and renames some to make the naming more uniform. ChangeLog: 2014-11-21 Will Newton <will.newton@linaro.org> Andrew Pinski <andrew.pinski@caviumnetworks.com> * elf/elf.h (R_AARCH64_P32_ABS32, R_AARCH64_P32_COPY, R_AARCH64_P32_GLOB_DAT, R_AARCH64_P32_JUMP_SLOT, R_AARCH64_P32_RELATIVE, R_AARCH64_P32_TLS_DTPMOD, R_AARCH64_P32_TLS_DTPREL, R_AARCH64_P32_TLS_TPREL, R_AARCH64_P32_TLSDESC, R_AARCH64_P32_IRELATIVE): Define. (R_AARCH64_TLS_DTPMOD64): Rename to .. (R_AARCH64_TLS_DTPMOD): This. (R_AARCH64_TLS_DTPREL64): Rename to ... (R_AARCH64_TLS_DTPREL): This. (R_AARCH64_TLS_TPREL64): Rename to ... (R_AARCH64_TLS_TPREL): This. * sysdeps/aarch64/dl-machine.h (elf_machine_type_class): Update R_AARCH64_TLS_DTPMOD64, R_AARCH64_TLS_DTPREL64, and R_AARCH64_TLS_TPREL64. (elf_machine_rela): Likewise.
* Don't use INTDEF/INTUSE with _dl_init (bug 14132).Joseph Myers2014-11-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the removal of the obsolete INTDEF / INTUSE mechanism, this patch eliminates its use for _dl_init. Since _dl_init was already declared with hidden visibility, creating a second hidden alias for it was completely pointless, so this patch replaces all uses of _dl_init_internal with plain _dl_init instead of using hidden_proto / hidden_def (which are only needed when you want a hidden alias for a non-hidden symbol; it's quite possible there are cases where they are used but don't need to be because the symbol in question is not part of the public ABI and is only used within a single library, so using attributes_hidden instead would suffice). Tested for x86_64 that installed stripped shared libraries are unchanged by the patch. [BZ #14132] * elf/dl-init.c (_dl_init): Don't use INTDEF. * sysdeps/aarch64/dl-machine.h (RTLD_START): Use _dl_init instead of _dl_init_internal. * sysdeps/alpha/dl-machine.h (RTLD_START): Likewise. * sysdeps/arm/dl-machine.h (RTLD_START): Likewise. * sysdeps/hppa/dl-machine.h (RTLD_START): Likewise. * sysdeps/i386/dl-machine.h (RTLD_START): Likewise. * sysdeps/ia64/dl-machine.h (RTLD_START): Likewise. * sysdeps/m68k/dl-machine.h (RTLD_START): Likewise. * sysdeps/microblaze/dl-machine.h (RTLD_START): Likewise. * sysdeps/mips/dl-machine.h (RTLD_START): Likewise. * sysdeps/powerpc/powerpc32/dl-start.S (_start): Likewise. * sysdeps/s390/s390-32/dl-machine.h (RTLD_START): Likewise. * sysdeps/s390/s390-64/dl-machine.h (RTLD_START): Likewise. * sysdeps/sh/dl-machine.h (RTLD_START): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (RTLD_START): Likewise. * sysdeps/tile/dl-start.S (_start): Likewise. * sysdeps/x86_64/dl-machine.h (RTLD_START): Likewise. * sysdeps/x86_64/x32/dl-machine.h (RTLD_START): Likewise.
* Fix Wundef warning for ELF_MACHINE_NO_RELASiddhesh Poyarekar2014-06-261-0/+1
| | | | | | | This patch defines ELF_MACHINE_NO_RELA on all architectures. Tested only on x86_64 to verify that the sources before and after are identical except for two instructions that pass the current line number in dl-machine.h to assert_fail.
* Relocate AArch64 from ports to libc.Marcus Shawcroft2014-02-111-0/+401
This patch moves the AArch64 port to the main sysdeps hierarchy. The move is essentially: git mv ports/sysdeps/aarch64 sysdeps/aarch64 git mv ports/sysdeps/unix/sysv/linux/aarch64 sysdeps/unix/sysv/linux/aarch64 The README is updated and I've updated ChangeLog.aarch64 along the lines of the ARM move. The AArch64 build has been tested to confirm that there were no changes in objdump -dr output or the shared objects.
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