|| h->root.type == bfd_link_hash_defweak)
&& local_ref))
{
+ /* Skip __start_SECNAME/__stop_SECNAME when --gc-sections
+ -z start-stop-gc are used. */
+ if (elf_x86_start_stop_gc_p (link_info, h))
+ return true;
+
convert_load:
if (opcode == 0x8b)
{
|| h->root.type == bfd_link_hash_defweak)
&& h->root.u.def.section == bfd_und_section_ptr))))
{
+ /* Skip __start_SECNAME/__stop_SECNAME when --gc-sections
+ -z start-stop-gc are used. */
+ if (elf_x86_start_stop_gc_p (link_info, h))
+ return true;
+
/* Skip since R_X86_64_32/R_X86_64_32S may overflow. */
if (no_overflow)
return true;
_bfd_x86_elf_merge_gnu_properties
#define elf_backend_fixup_gnu_properties \
_bfd_x86_elf_link_fixup_gnu_properties
+
+/* Return true if H is a __start_SECNAME/__stop_SECNAME symbol for the
+ SECNAME section which has been garbage collected by --gc-sections
+ -z start-stop-gc. */
+
+static inline bool
+elf_x86_start_stop_gc_p (struct bfd_link_info *link_info,
+ struct elf_link_hash_entry *h)
+{
+ if (h->start_stop
+ && link_info->gc_sections
+ && link_info->start_stop_gc)
+ {
+ asection *s = h->root.u.def.section;
+
+ do
+ {
+ /* Return false if any SECNAME section is kept. */
+ if (s->gc_mark)
+ return false;
+ s = bfd_get_next_section_by_name (s->owner, s);
+ }
+ while (s != NULL);
+
+ /* Return true only if all SECNAME sections have been garbage
+ collected. */
+ return true;
+ }
+
+ /* Return false if H isn't a __start_SECNAME/__stop_SECNAME symbol or
+ --gc-sections or -z start-stop-gc isn't used. */
+ return false;
+}
run_dump_test "property-x86-isa4"
run_dump_test "pr26869"
run_dump_test "code16"
+run_dump_test "pr27491-1a"
+run_dump_test "pr27491-1b"
+run_dump_test "pr27491-1c"
+run_dump_test "pr27491-2"
+run_dump_test "pr27491-3"
+run_dump_test "pr27491-4"
if { !([istarget "i?86-*-linux*"]
|| [istarget "i?86-*-gnu*"]
--- /dev/null
+ .weak __start_xx
+ .weak __stop_xx
+
+ .text
+ .global foo
+foo:
+ movl __start_xx@got(%ebx), %eax
+ movl __stop_xx@got(%ebx), %eax
+
+ .section xx,"a",unique,0
+ .byte 0
+
+ .section xx,"a",unique,1
+ .byte 1
--- /dev/null
+#source: pr27491-1.s
+#as: --32
+#ld: --gc-sections -melf_i386 -z start-stop-gc -shared
+#objdump: -dw
+
+.*: +file format elf32-i386
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 8b 83 ([0-9a-f]{2} ){4}[ \t]+mov +-0x[a-f0-9]+\(%ebx\),%eax
+ +[a-f0-9]+: 8b 83 ([0-9a-f]{2} ){4}[ \t]+mov +-0x[a-f0-9]+\(%ebx\),%eax
+#pass
--- /dev/null
+#source: pr27491-1.s
+#as: --32
+#ld: --gc-sections -melf_i386 -z start-stop-gc -shared
+#nm: -n
+
+#failif
+#...
+[a-f0-9]+ R __start_xx
+#...
+[a-f0-9]+ R __stop_xx
+#...
--- /dev/null
+#source: pr27491-1.s
+#as: --32
+#ld: --gc-sections -melf_i386 -shared
+#objdump: -dw
+
+.*: +file format elf32-i386
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 8d 83 ([0-9a-f]{2} ){4}[ \t]+lea +-0x[a-f0-9]+\(%ebx\),%eax
+ +[a-f0-9]+: 8d 83 ([0-9a-f]{2} ){4}[ \t]+lea +-0x[a-f0-9]+\(%ebx\),%eax
+#pass
--- /dev/null
+#as: --32
+#ld: --gc-sections -melf_i386 -z start-stop-gc -shared
+#objdump: --syms -dw
+
+.*: +file format elf32-i386
+
+
+SYMBOL TABLE:
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __stop_xx
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __start_xx
+#...
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 8d 83 ([0-9a-f]{2} ){4}[ \t]+lea +-0x[a-f0-9]+\(%ebx\),%eax
+ +[a-f0-9]+: 8d 83 ([0-9a-f]{2} ){4}[ \t]+lea +-0x[a-f0-9]+\(%ebx\),%eax
+ +[a-f0-9]+: 8d 83 ([0-9a-f]{2} ){4}[ \t]+lea +-0x[a-f0-9]+\(%ebx\),%eax
+#pass
--- /dev/null
+ .weak __start_xx
+ .weak __stop_xx
+
+ .text
+ .global foo
+foo:
+ movl __start_xx@got(%ebx), %eax
+ movl __stop_xx@got(%ebx), %eax
+ leal bar1@got(%ebx), %eax
+
+ .section xx,"a",unique,0
+bar1:
+ .byte 0
+
+ .section xx,"a",unique,1
+ .byte 1
--- /dev/null
+#as: --32
+#ld: --gc-sections -melf_i386 -z start-stop-gc -shared
+#objdump: --syms -dw
+
+.*: +file format elf32-i386
+
+
+SYMBOL TABLE:
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __stop_xx
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __start_xx
+#...
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 8d 83 ([0-9a-f]{2} ){4}[ \t]+lea +-0x[a-f0-9]+\(%ebx\),%eax
+ +[a-f0-9]+: 8d 83 ([0-9a-f]{2} ){4}[ \t]+lea +-0x[a-f0-9]+\(%ebx\),%eax
+#pass
--- /dev/null
+ .weak __start_xx
+ .weak __stop_xx
+
+ .text
+ .global foo
+foo:
+ movl __start_xx@got(%ebx), %eax
+ movl __stop_xx@got(%ebx), %eax
+
+ .section xx,"a",unique,0
+ .byte 0
+
+ .section xx,"aR",unique,1
+ .byte 1
--- /dev/null
+#source: pr27491-4a.s
+#source: pr27491-4b.s
+#as: --32
+#ld: --gc-sections -melf_i386 -z start-stop-gc -shared
+#objdump: --syms -dw
+
+.*: +file format elf32-i386
+
+
+SYMBOL TABLE:
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __stop_xx
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __start_xx
+#...
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 8d 83 ([0-9a-f]{2} ){4}[ \t]+lea +-0x[a-f0-9]+\(%ebx\),%eax
+ +[a-f0-9]+: 8d 83 ([0-9a-f]{2} ){4}[ \t]+lea +-0x[a-f0-9]+\(%ebx\),%eax
+#pass
--- /dev/null
+ .weak __start_xx
+ .weak __stop_xx
+
+ .text
+ .global foo
+foo:
+ movl __start_xx@got(%ebx), %eax
+ movl __stop_xx@got(%ebx), %eax
+
+ .section xx,"a",unique,0
+ .byte 0
--- /dev/null
+ .section xx,"aR",unique,1
+ .byte 1
--- /dev/null
+ .weak __start_xx
+ .weak __stop_xx
+
+ .text
+ .global foo
+foo:
+ movq __start_xx@gotpcrel(%rip), %rax
+ movq __stop_xx@gotpcrel(%rip), %rax
+
+ .section xx,"a",unique,0
+ .byte 0
+
+ .section xx,"a",unique,1
+ .byte 1
--- /dev/null
+#source: pr27491-1.s
+#as: --64
+#ld: --gc-sections -melf_x86_64 -z start-stop-gc -shared
+#objdump: -dw
+
+.*: +file format elf64-x86-64
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 48 8b 05 ([0-9a-f]{2} ){4}[ \t]+mov +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <_DYNAMIC\+0x[a-f0-9]+>
+ +[a-f0-9]+: 48 8b 05 ([0-9a-f]{2} ){4}[ \t]+mov +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <_DYNAMIC\+0x[a-f0-9]+>
+#pass
--- /dev/null
+#source: pr27491-1.s
+#as: --64
+#ld: --gc-sections -melf_x86_64 -z start-stop-gc -shared
+#nm: -n
+
+#failif
+#...
+[a-f0-9]+ R __start_xx
+#...
+[a-f0-9]+ R __stop_xx
+#...
--- /dev/null
+#source: pr27491-1.s
+#as: --64
+#ld: --gc-sections -melf_x86_64 -shared
+#objdump: --syms -dw
+
+.*: +file format elf64-x86-64
+
+SYMBOL TABLE:
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __stop_xx
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __start_xx
+#...
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <__start_xx>
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <__stop_xx>
+#pass
--- /dev/null
+#as: --64
+#ld: --gc-sections -melf_x86_64 -z start-stop-gc -shared
+#objdump: --syms -dw
+
+.*: +file format elf64-x86-64
+
+
+SYMBOL TABLE:
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __stop_xx
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __start_xx
+#...
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <__start_xx>
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <__stop_xx>
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <bar1>
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <bar2>
+#pass
--- /dev/null
+ .weak __start_xx
+ .weak __stop_xx
+
+ .text
+ .global foo
+foo:
+ movq __start_xx@gotpcrel(%rip), %rax
+ movq __stop_xx@gotpcrel(%rip), %rax
+ leaq bar1(%rip), %rax
+ leaq bar2(%rip), %rax
+
+ .section xx,"a",unique,0
+ .byte 0
+bar1:
+ .byte 0
+bar2:
+ .byte 0
+
+ .section xx,"a",unique,1
+ .byte 1
--- /dev/null
+#as: --64
+#ld: --gc-sections -melf_x86_64 -z start-stop-gc -shared
+#objdump: --syms -dw
+
+.*: +file format elf64-x86-64
+
+
+SYMBOL TABLE:
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __stop_xx
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __start_xx
+#...
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <__start_xx>
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <__stop_xx>
+#pass
--- /dev/null
+ .weak __start_xx
+ .weak __stop_xx
+
+ .text
+ .global foo
+foo:
+ movq __start_xx@gotpcrel(%rip), %rax
+ movq __stop_xx@gotpcrel(%rip), %rax
+
+ .section xx,"a",unique,1
+ .byte 0
+
+ .section xx,"aR",unique,0
+ .byte 1
--- /dev/null
+#source: pr27491-4a.s
+#source: pr27491-4b.s
+#as: --64
+#ld: --gc-sections -melf_x86_64 -z start-stop-gc -shared
+#objdump: --syms -dw
+
+.*: +file format elf64-x86-64
+
+
+SYMBOL TABLE:
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __stop_xx
+#...
+[a-f0-9]+ g xx [a-f0-9]+ \.protected __start_xx
+#...
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <foo>:
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <__start_xx>
+ +[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ \t]+lea +0x[a-f0-9]+\(%rip\),%rax[ \t]+# [a-f0-9]+ <__stop_xx>
+#pass
--- /dev/null
+ .weak __start_xx
+ .weak __stop_xx
+
+ .text
+ .global foo
+foo:
+ movq __start_xx@gotpcrel(%rip), %rax
+ movq __stop_xx@gotpcrel(%rip), %rax
+
+ .section xx,"a",unique,1
+ .byte 0
--- /dev/null
+ .section xx,"aR",unique,0
+ .byte 1
run_dump_test "property-x86-isa4"
run_dump_test "property-x86-isa4-x32"
run_dump_test "code16"
+run_dump_test "pr27491-1a"
+run_dump_test "pr27491-1b"
+run_dump_test "pr27491-1c"
+run_dump_test "pr27491-2"
+run_dump_test "pr27491-3"
+run_dump_test "pr27491-4"
if ![istarget "x86_64-*-linux*"] {
return
projects / binutils-gdb.git / commitdiff