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authorH.J. Lu <hjl.tools@gmail.com>2016-06-22 05:37:24 -0700
committerH.J. Lu <hjl.tools@gmail.com>2016-06-22 05:37:38 -0700
commit647e4d46495f2bfb0950fd1066c8a660173cca40 (patch)
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parent6edaf4d75b45ff08d7296095506904663b8f0576 (diff)
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ld: Add a linker configure option --enable-relro
Add a configure option --enable-relro to decide whether -z relro should be enabled in ELF linker by default. Default to yes for all Linux targets, except FRV, HPPA, IA64 and MIPS, since many relro tests fail on these targets. PR ld/20283 * NEWS: Mention --enable-relro. * configure.ac: Add --enable-relro. (DEFAULT_LD_Z_RELRO): New. Set by --enable-relro. * configure.tgt (ac_default_ld_z_relro): Default it to 1 for some Linux targets. * config.in: Regenerated. * configure: Likewise. * emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Set link_info.relro to DEFAULT_LD_Z_RELRO. * testsuite/config/default.exp (ld_elf_shared_opt): New. * testsuite/lib/ld-lib.exp (run_dump_test): Pass $ld_elf_shared_opt to ld for ELF targets with shared object support. (run_ld_link_tests): Likewise.
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