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+ .debug_pubtypes 0 : { *(.debug_pubtypes) }
+ .debug_ranges 0 : { *(.debug_ranges) }
+ .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
+}
--- /dev/null
+/* Script for -z combreloc -z now -z relro: combine and sort reloc sections */
+OUTPUT_FORMAT("elf32-i386-minix", "elf32-i386-minix",
+ "elf32-i386-minix")
+OUTPUT_ARCH(i386)
+ENTRY(_start)
+SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x08048000)); . = SEGMENT_START("text-segment", 0x08048000) + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .note.gnu.build-id : { *(.note.gnu.build-id) }
+ .hash : { *(.hash) }
+ .gnu.hash : { *(.gnu.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .gnu.version : { *(.gnu.version) }
+ .gnu.version_d : { *(.gnu.version_d) }
+ .gnu.version_r : { *(.gnu.version_r) }
+ .rel.dyn :
+ {
+ *(.rel.init)
+ *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
+ *(.rel.fini)
+ *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
+ *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*)
+ *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
+ *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
+ *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
+ *(.rel.ctors)
+ *(.rel.dtors)
+ *(.rel.got)
+ *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
+ *(.rel.ifunc)
+ }
+ .rel.plt :
+ {
+ *(.rel.plt)
+ PROVIDE_HIDDEN (__rel_iplt_start = .);
+ *(.rel.iplt)
+ PROVIDE_HIDDEN (__rel_iplt_end = .);
+ }
+ .init :
+ {
+ KEEP (*(.init))
+ } =0x90909090
+ .plt : { *(.plt) *(.iplt) }
+ .text :
+ {
+ *(.text.unlikely .text.*_unlikely)
+ *(.text.exit .text.exit.*)
+ *(.text.startup .text.startup.*)
+ *(.text.hot .text.hot.*)
+ *(.text .stub .text.* .gnu.linkonce.t.*)
+ /* .gnu.warning sections are handled specially by elf32.em. */
+ *(.gnu.warning)
+ } =0x90909090
+ .fini :
+ {
+ KEEP (*(.fini))
+ } =0x90909090
+ PROVIDE (__etext = .);
+ PROVIDE (_etext = .);
+ PROVIDE (etext = .);
+ .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
+ .rodata1 : { *(.rodata1) }
+ .eh_frame_hdr : { *(.eh_frame_hdr) }
+ .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) }
+ .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table
+ .gcc_except_table.*) }
+ /* These sections are generated by the Sun/Oracle C++ compiler. */
+ .exception_ranges : ONLY_IF_RO { *(.exception_ranges
+ .exception_ranges*) }
+ /* Adjust the address for the data segment. We want to adjust up to
+ the same address within the page on the next page up. */
+ . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
+ /* Exception handling */
+ .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) }
+ .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
+ .exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) }
+ /* Thread Local Storage sections */
+ .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) }
+ .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
+ .preinit_array :
+ {
+ PROVIDE_HIDDEN (__preinit_array_start = .);
+ KEEP (*(.preinit_array))
+ PROVIDE_HIDDEN (__preinit_array_end = .);
+ }
+ .init_array :
+ {
+ PROVIDE_HIDDEN (__init_array_start = .);
+ KEEP (*(SORT(.init_array.*)))
+ KEEP (*(.init_array))
+ PROVIDE_HIDDEN (__init_array_end = .);
+ }
+ .fini_array :
+ {
+ PROVIDE_HIDDEN (__fini_array_start = .);
+ KEEP (*(SORT(.fini_array.*)))
+ KEEP (*(.fini_array))
+ PROVIDE_HIDDEN (__fini_array_end = .);
+ }
+ .ctors :
+ {
+ /* gcc uses crtbegin.o to find the start of
+ the constructors, so we make sure it is
+ first. Because this is a wildcard, it
+ doesn't matter if the user does not
+ actually link against crtbegin.o; the
+ linker won't look for a file to match a
+ wildcard. The wildcard also means that it
+ doesn't matter which directory crtbegin.o
+ is in. */
+ KEEP (*crtbegin.o(.ctors))
+ KEEP (*crtbegin?.o(.ctors))
+ /* We don't want to include the .ctor section from
+ the crtend.o file until after the sorted ctors.
+ The .ctor section from the crtend file contains the
+ end of ctors marker and it must be last */
+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*crtbegin?.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ }
+ .jcr : { KEEP (*(.jcr)) }
+ .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) }
+ .dynamic : { *(.dynamic) }
+ .got : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) }
+ . = DATA_SEGMENT_RELRO_END (0, .);
+ .data :
+ {
+ *(.data .data.* .gnu.linkonce.d.*)
+ SORT(CONSTRUCTORS)
+ }
+ .data1 : { *(.data1) }
+ _edata = .; PROVIDE (edata = .);
+ __bss_start = .;
+ .bss :
+ {
+ *(.dynbss)
+ *(.bss .bss.* .gnu.linkonce.b.*)
+ *(COMMON)
+ /* Align here to ensure that the .bss section occupies space up to
+ _end. Align after .bss to ensure correct alignment even if the
+ .bss section disappears because there are no input sections.
+ FIXME: Why do we need it? When there is no .bss section, we don't
+ pad the .data section. */
+ . = ALIGN(. != 0 ? 32 / 8 : 1);
+ }
+ . = ALIGN(32 / 8);
+ . = ALIGN(32 / 8);
+ _end = .; PROVIDE (end = .);
+ . = DATA_SEGMENT_END (.);
+ /* Stabs debugging sections. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ .stab.excl 0 : { *(.stab.excl) }
+ .stab.exclstr 0 : { *(.stab.exclstr) }
+ .stab.index 0 : { *(.stab.index) }
+ .stab.indexstr 0 : { *(.stab.indexstr) }
+ .comment 0 : { *(.comment) }
+ /* DWARF debug sections.
+ Symbols in the DWARF debugging sections are relative to the beginning
+ of the section so we begin them at 0. */
+ /* DWARF 1 */
+ .debug 0 : { *(.debug) }
+ .line 0 : { *(.line) }
+ /* GNU DWARF 1 extensions */
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+ /* DWARF 1.1 and DWARF 2 */
+ .debug_aranges 0 : { *(.debug_aranges) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+ /* DWARF 2 */
+ .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
+ .debug_abbrev 0 : { *(.debug_abbrev) }
+ .debug_line 0 : { *(.debug_line) }
+ .debug_frame 0 : { *(.debug_frame) }
+ .debug_str 0 : { *(.debug_str) }
+ .debug_loc 0 : { *(.debug_loc) }
+ .debug_macinfo 0 : { *(.debug_macinfo) }
+ /* SGI/MIPS DWARF 2 extensions */
+ .debug_weaknames 0 : { *(.debug_weaknames) }
+ .debug_funcnames 0 : { *(.debug_funcnames) }
+ .debug_typenames 0 : { *(.debug_typenames) }
+ .debug_varnames 0 : { *(.debug_varnames) }
+ /* DWARF 3 */
+ .debug_pubtypes 0 : { *(.debug_pubtypes) }
+ .debug_ranges 0 : { *(.debug_ranges) }
+ .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
+ /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }
+}
LINKERSCRIPT= ${.CURDIR}/arch/${MACHINE_ARCH}/kernel.lds
+.if ${HAVE_GOLD:U} != ""
+GOLDLINKERSCRIPT=${LINKERSCRIPT}
+LDFLAGS+= -Wl,--allow-multiple-definition
+CFLAGS += -fno-common
+.else
LDFLAGS+= -T ${LINKERSCRIPT}
+.endif
LDFLAGS+= -nostdlib
CFLAGS += -fno-stack-protector
. += _kern_offset;
. = ALIGN(4096); usermapped_start = .;
- .usermapped_glo : AT(ADDR(.usermapped_glo) - _kern_offset) { usermapped_glo*.o }
+ .usermapped_glo : AT(ADDR(.usermapped_glo) - _kern_offset) { usermapped_glo*.o(*) }
. = ALIGN(4096); usermapped_nonglo_start = .;
- .usermapped : AT(ADDR(.usermapped) - _kern_offset) { usermapped_*.o }
+ .usermapped : AT(ADDR(.usermapped) - _kern_offset) { usermapped_*.o(*) }
. = ALIGN(4096); usermapped_end = .;
.text : AT(ADDR(.text) - _kern_offset) { *(.text*) }
_etext = .;
. += _kern_offset;
. = ALIGN(4096); usermapped_start = .;
- .usermapped_glo : AT(ADDR(.usermapped_glo) - _kern_offset) { usermapped_glo*.o }
+ .usermapped_glo : AT(ADDR(.usermapped_glo) - _kern_offset) { usermapped_glo*.o(*) }
. = ALIGN(4096); usermapped_nonglo_start = .;
- .usermapped : AT(ADDR(.usermapped) - _kern_offset) { usermapped_*.o }
+ .usermapped : AT(ADDR(.usermapped) - _kern_offset) { usermapped_*.o(*) }
. = ALIGN(4096); usermapped_end = .;
.text : AT(ADDR(.text) - _kern_offset) { *(.text*) }
.data ALIGN(4096) : AT(ADDR(.data) - _kern_offset) { *(.data .rodata* ) }
.include <bsd.own.mk>
+LD+= ${${HAVE_GOLD:Uno} != "no":? --script ${LDS_RELOC}:}
+
.if ${USE_COMPILERCRTSTUFF} != "yes"
.if defined(CSU_MACHINE_ARCH)
LDFLAGS+= ${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
-shared -nostartfiles -nodefaultlibs
+.if defined(__MINIX) && ${HAVE_GOLD:U} != ""
+LDFLAGS+= -Wl,--script ${LDS_SHARED_LIB}
+.else
LDFLAGS+= -Wl,-static
+.endif
LDFLAGS+= -Wl,--warn-shared-textrel
COPTS+= -fvisibility=hidden
leal _DYNAMIC-1b(%edx),%ecx # &_DYNAMIC
movl %ecx,%ebx
subl _GLOBAL_OFFSET_TABLE_-1b(%edx),%ebx
+#ifdef HAVE_GOLD
+ /* Adjust the offset when using the gold linker, because it's off.
+ * Using '_DYNAMIC' this way produces the warning
+ * 'shared library text segment is not shareable', produced by '--warn-shared-textrel'
+ * to avoid the warning, add a '_MY_DYNAMIC = .;' before the dynamic section in the
+ * linkerscript that is used, and replace '_DYNAMIC' with '_MY_DYNAMIC' here.
+ * However, this way, you end up with a custom linker script that you have to maintain.
+ */
+ leal _DYNAMIC,%eax
+ subl %eax,%ebx
+#endif
pushl %ebx # relocbase
pushl %ecx # &_DYNAMIC
#else
_rtld_relocate_plt_objects(&_rtld_objself);
#endif
-#if !defined(__mips__) && !defined(__hppa__)
+#if !defined(__mips__) && !defined(__hppa__) && !defined(HAVE_GOLD)
assert(!_rtld_objself.pltgot);
#endif
#if !defined(__arm__) && !defined(__mips__) && !defined(__sh__)
SHLIB_SOVERSION= ${SHLIB_MAJOR}
SHLIB_SHFLAGS= -Wl,-soname,${_LIB_PREFIX}${LIB}.so.${SHLIB_SOVERSION}
SHLIB_SHFLAGS+= -Wl,--warn-shared-textrel
+.if defined(__MINIX)
+SHLIB_SHFLAGS+= ${${HAVE_GOLD:Uno} != "no":? -Wl,--script,${LDS_SHARED_LIB}:}
+.endif # defined(__MINIX)
SHLIB_LDSTARTFILE?= ${_GCC_CRTI} ${_GCC_CRTBEGINS}
SHLIB_LDENDFILE?= ${_GCC_CRTENDS} ${_GCC_CRTN}
MKGDB:= no
MKGCC?= no
-# LSC To check if works
-#DESTDIR?= /usr/destdir.${MACHINE_ARCH}
-
# LSC MINIX SMP Support?
.ifdef CONFIG_SMP
SMP_FLAGS += -DCONFIG_SMP
__uname_s!= uname -s
.if ${__uname_s:Uunknown} == "Minix"
USETOOLS?= never
-. if ${USETOOLS:Uno} != "yes" && ${HAVE_LLVM:U} == ""
-HAVE_LLVM!= clang --version | grep version | cut -d' ' -f 3
-. endif
+. if ${USETOOLS:Uno} != "yes"
+. if ${_HAVE_LLVM:U} == ""
+ _HAVE_LLVM!= (exec 2>&1; clang --version || echo "")
+ _HAVE_LLVM:= ${_HAVE_LLVM:M[0-9]\.[0-9]}
+. if ${_HAVE_LLVM} != ""
+ HAVE_LLVM?= ${_HAVE_LLVM}
+. endif
+. endif # ${_HAVE_LLVM:U} == ""
+
+. if ${_HAVE_GOLD:U} == ""
+ _HAVE_GOLD!= (exec 2>&1; ld --version || echo "")
+ _GOLD_MATCH:=${_HAVE_GOLD:Mgold}
+ _HAVE_GOLD:= ${_HAVE_GOLD:M[0-9]\.[0-9][0-9]}
+. if ${_GOLD_MATCH} != "" && ${_HAVE_GOLD} != ""
+ HAVE_GOLD?= ${_HAVE_GOLD}
+ CFLAGS+= -DHAVE_GOLD=${_HAVE_GOLD}
+ AFLAGS+= -DHAVE_GOLD=${_HAVE_GOLD}
+. endif
+. endif # ${_HAVE_GOLD:U} == ""
+. endif # ${USETOOLS:Uno} != "yes"
+
. if !defined(HOSTPROG) && !defined(HOSTLIB)
# LSC FIXME: Override MACHINE as the native minix host make command will set
# it to i686.
. if ${MACHINE_ARCH} == "i386"
-MACHINE:= i386
+ MACHINE:= i386
. endif
. endif # !defined(HOSTPROG) && !defined(HOSTLIB)
.endif # __uname_s == "Minix"
+
+#
+# linker script files that have to be specified explicitely for the gold linker
+#
+
+LDS_PATH= ${NETBSDSRCDIR}/external/gpl3/binutils/ldscripts
+LDS_STATIC_BIN= ${LDS_PATH}/elf_${MACHINE_ARCH}_minix.xc
+LDS_DYNAMIC_BIN= ${LDS_PATH}/elf_${MACHINE_ARCH}_minix.xc
+LDS_RELOC= ${LDS_PATH}/elf_${MACHINE_ARCH}_minix.xr
+LDS_SHARED_LIB= ${LDS_PATH}/elf_${MACHINE_ARCH}_minix.xsc
+LDS_N= ${LDS_PATH}/elf_${MACHINE_ARCH}_minix.xbn
.endif # defined(__MINIX)
MAKECONF?= /etc/mk.conf
# Language-independent definitions.
.for _P in ${PROGS} ${PROGS_CXX} # {
+.if defined(__MINIX) && ${HAVE_GOLD:U} != ""
+. if ${LD_STATIC:U} != "-static"
+GOLDLINKERSCRIPT?= ${LDS_DYNAMIC_BIN}
+. else
+GOLDLINKERSCRIPT?= ${LDS_STATIC_BIN}
+. endif
+
+GOLDLINKERSCRIPT.${_P}?= ${GOLDLINKERSCRIPT}
+
+. if ${GOLDLINKERSCRIPT.${_P}:U} != ""
+LDFLAGS.${_P}:=-Wl,--script,${GOLDLINKERSCRIPT.${_P}} ${LDFLAGS.${_P}}
+. endif
+.endif # defined(__MINIX) && ${HAVE_GOLD:U} == ""
+
BINDIR.${_P}?= ${BINDIR}
PROGNAME.${_P}?= ${_P}
.include "${S}/lib/libkern/Makefile.inc"
LIBKERN= ${KERNLIB}
.else
+
+# When using gold linker, specify the linker script
+GOLDLINKERSCRIPT?= ${LDS_N}
+
# use MINIX minc
LIBKERN= ${DESTDIR}/usr/lib/libminc.a
.endif
.include "${S}/lib/libkern/Makefile.inc"
LIBKERN= ${KERNLIB}
.else
+
+# When using gold linker, specify the linker script
+GOLDLINKERSCRIPT?= ${LDS_N}
+
# use MINIX minc
LIBKERN= ${DESTDIR}/usr/lib/libminc.a
.endif
# executables is tested
LDSTATIC= -dynamic
+# use the shared linkerscript for mod when using the gold linker
+GOLDLINKERSCRIPT.mod?= ${${HAVE_GOLD:Uno} != "no":? ${LDS_SHARED_LIB} :}
+GOLDLINKERSCRIPT=
+
# Add test that must be linked dynamically, and its dynamically loaded
# module
PROGS+= test63 mod