binutils-gdb/ld/testsuite/ld-gc/start2.d

#name: --gc-sections with -z start-stop-gc
#ld: --gc-sections -e _start -z start-stop-gc
#nm: -n
#target: *-*-linux* *-*-gnu* arm*-*-uclinuxfdpiceabi
#xfail: bfin-*-*linux* frv-*-*

#failif
#...
[0-9a-f]+ D +__start__foo
#...
PR27451, -z start_stop_gc When --gc-sections is in effect, a reference from a retained section to __start_SECNAME or __stop_SECNAME causes all input sections named SECNAME to also be retained, if SECNAME is representable as a C identifier and either __start_SECNAME or __stop_SECNAME is synthesized by the linker. Add an option to disable that feature, effectively ignoring any relocation that references a synthesized linker defined __start_ or __stop_ symbol. PR 27451 include/ * bfdlink.h (struct bfd_link_info): Add start_stop_gc. bfd/ * elflink.c (_bfd_elf_gc_mark_rsec): Ignore synthesized linker defined start/stop symbols when start_stop_gc. (bfd_elf_gc_mark_dynamic_ref_symbol): Likewise. (bfd_elf_define_start_stop): Don't modify ldscript_def syms. * linker.c (bfd_generic_define_start_stop): Likewise. ld/ * emultempl/elf.em: Handle -z start-stop-gc and -z nostart-stop-gc. * lexsup.c (elf_static_list_options): Display help for them. Move help for -z stack-size to here from elf_shlib_list_options. Add help for -z start-stop-visibility and -z undefs. * ld.texi: Document -z start-stop-gc and -z nostart-stop-gc. * NEWS: Mention -z start-stop-gc. * testsuite/ld-gc/start2.s, * testsuite/ld-gc/start2.d: New test. * testsuite/ld-gc/gc.exp: Run it. 2021-03-01 05:52:49 +08:00			`#name: --gc-sections with -z start-stop-gc`
			`#ld: --gc-sections -e _start -z start-stop-gc`
			`#nm: -n`
			`#target: --linux* --gnu* arm--uclinuxfdpiceabi`
			`#xfail: bfin--linux* frv--`

			`#failif`
			`#...`
			`[0-9a-f]+ D +__start__foo`
			`#...`