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authorJeremy Drake <sourceware-bugzilla@jdrake.com>2020-08-27 12:58:27 +0100
committerNick Clifton <nickc@redhat.com>2020-08-27 12:58:27 +0100
commit514b4e191d5f46de8e142fe216e677a35fa9c4bb (patch)
treef4173c8f49e5987adc1cd1dd4c515c9493bbe268 /ld/NEWS
parentf2e5245f4169c2a1849ba998872e245c1b303950 (diff)
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Change the default characteristics of DLLs built by the linker to more secure settings.
PR 19011 * emultempl/pe.em (DEFAULT_DLL_CHARACTERISTICS): Define. (pe_dll_characteristics): Initialise to DEFAULT_DLL_CHARACTERISTICS. (add_options): Add options to disable DLL characteristics. (list_options): List the new options. (handle_options): Handle the new options. * emultempl/pep.em: Similar changes to above. (NT_EXE_IMAGE_BASE): Default to an address above 4G. (NT_DLL_IMAGE_BASE, NT_DLL_AUTO_IMAGE_BASE, (NT_DLL_AUTO_IMAGE_MASK): Likewise. * ld.texi: Document the new options. * pe-dll.c (pe_dll_enable_reloc_section): Change to default to true. (generate_reloc): Do nothing if there is no reloc section. (pe_exe_fill_sections): Only assign the reloc section contents if the section exists. * testsuite/ld-pe/pe.exp: Add the --disable-reloc-section flag to the .secrel32 tests. * testsuite/ld-scripts/provide-8.d: Expect for fail on PE targets. * NEWS: Mention the change in DLL generation.
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-*- text -*-
+* The creation of PE format DLLs now defaults to using a more secure set of DLL
+ characteristics.
+
* The linker now deduplicates the types in .ctf sections. The new
command-line option --ctf-share-types describes how to do this:
its default value, share-unconflicted, produces the most compact