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[patch, libgloss, mips] New linker scripts for mips
- From: "Steve Ellcey " <sellcey at mips dot com>
- To: <newlib at sourceware dot org>
- Date: Tue, 25 Sep 2012 09:51:06 -0700
- Subject: [patch, libgloss, mips] New linker scripts for mips
I would like to add a number of MIPS linker scripts to the libgloss/mips
directory in order to aid in testing the MIPS compilers. Most of the
linker scripts are for the new mips-mti-elf triplet I have created and
checked in to GCC and binutils. The linker scripts mti32.ld and mti64.ld
are for the 'old' 32 bit ABI on either the mips32r2 or mips64r2 architecture.
The mti64_n32.ld linker script is for the new 32 bit ABI on the mips64r2
architecture and mti64_64.ld is for the 64 bit ABI on the mips64r2
architecture. With these linker scripts I was able to test all the
multilib versions that are built with mips-mti-elf using the GNU simulator.
I also added sde32.ld and sde64.ld linker scripts. These are for the
mips-sde-elf target that has existed for some time but for some reason
linker scripts for them were never checked in.
OK to checkin?
Steve Ellcey
sellcey@mips.com
2012-09-26 Steve Ellcey <sellcey@mips.com>
* mips/configure.in: Add new linker scripts to script list.
* mips/configure: Regenerate.
* mips/mti32.ld: New.
* mips/mti64.ld: New.
* mips/mti64_n32.ld: New.
* mips/mti64_64.ld: New.
* mips/sde32.ld: New.
* mips/sde64.ld: New.
diff --git a/libgloss/mips/configure.in b/libgloss/mips/configure.in
index e7945c7..705b58f 100644
--- a/libgloss/mips/configure.in
+++ b/libgloss/mips/configure.in
@@ -52,7 +52,7 @@ case "${target}" in
mips*-tx39*-*|mipstx39*-*-*)
part_specific_obj=
part_specific_defines=
- script_list="dve idt jmr3904app jmr3904dram jmr3904dram-java jmr3904app-java"
+ script_list="dve idt jmr3904app jmr3904dram jmr3904dram-java jmr3904app-java sde32 sde64 mti32 mti64 mti64_n32 mti64_64"
bsp_list="libdve.a libidt.a libjmr3904.a"
;;
mipsisa32-*-* | mipsisa32el-*-* | \
@@ -86,7 +86,7 @@ case "${target}" in
crt0="crt0_cfe.o crt0.o"
part_specific_obj="vr4300.o cma101.o"
part_specific_defines=
- script_list="idt pmon ddb ddb-kseg0 lsi cfe idtecoff nullmon"
+ script_list="idt pmon ddb ddb-kseg0 lsi cfe idtecoff nullmon mti32 mti64 mti64_n32 mti64_64"
bsp_list="libidt.a libpmon.a liblsi.a libcfe.a libnullmon.a"
;;
esac
diff --git a/libgloss/mips/mti32.ld b/libgloss/mips/mti32.ld
new file mode 100644
index 0000000..715639e
--- /dev/null
+++ b/libgloss/mips/mti32.ld
@@ -0,0 +1,185 @@
+/* The following TEXT start address leaves space for the monitor
+ workspace. This linker script links ISA32r2 programs for use with
+ the simulator. */
+
+ENTRY(_start)
+OUTPUT_ARCH("mips:isa32r2")
+OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradbigmips", "elf32-tradlittlemips")
+GROUP(-lc -lidt -lgcc)
+SEARCH_DIR(.)
+__DYNAMIC = 0;
+STARTUP(crt0.o)
+
+/*
+ * Allocate the stack to be at the top of memory, since the stack
+ * grows down
+ */
+PROVIDE (__stack = 0);
+/* PROVIDE (__global = 0); */
+
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist.
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we multiple object file
+ * formats, as some prepend an underscore.
+ */
+PROVIDE (hardware_exit_hook = 0);
+PROVIDE (hardware_hazard_hook = 0);
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+
+SECTIONS
+{
+ . = 0x80020000;
+ .text : {
+ _ftext = . ;
+ PROVIDE (eprol = .);
+ *(.text)
+ *(.text.*)
+ *(.gnu.linkonce.t.*)
+ *(.mips16.fn.*)
+ *(.mips16.call.*)
+ }
+ .init : {
+ KEEP (*(.init))
+ }
+ .fini : {
+ KEEP (*(.fini))
+ }
+ .rel.sdata : {
+ PROVIDE (__runtime_reloc_start = .);
+ *(.rel.sdata)
+ PROVIDE (__runtime_reloc_stop = .);
+ }
+ PROVIDE (etext = .);
+ _etext = .;
+
+ .eh_frame_hdr : { *(.eh_frame_hdr) }
+ .eh_frame : { KEEP (*(.eh_frame)) }
+ .gcc_except_table : { *(.gcc_except_table) }
+ .jcr : { KEEP (*(.jcr)) }
+ .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))
+
+ /* We don't want to include the .ctor section from
+ 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) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ }
+
+ . = .;
+ .rodata : {
+ *(.rdata)
+ *(.rodata)
+ *(.rodata.*)
+ *(.gnu.linkonce.r.*)
+ }
+ _fdata = ALIGN(16);
+ .data : {
+ *(.data)
+ *(.data.*)
+ *(.gnu.linkonce.d.*)
+ }
+ . = ALIGN(8);
+ _gp = . + 0x8000;
+ __global = _gp;
+ .lit8 : {
+ *(.lit8)
+ }
+ .lit4 : {
+ *(.lit4)
+ }
+ .sdata : {
+ *(.sdata)
+ *(.sdata.*)
+ *(.gnu.linkonce.s.*)
+ }
+ . = ALIGN(4);
+ PROVIDE (edata = .);
+ _edata = .;
+ _fbss = .;
+ .sbss : {
+ *(.sbss)
+ *(.sbss.*)
+ *(.gnu.linkonce.sb.*)
+ *(.scommon)
+ }
+ .bss : {
+ _bss_start = . ;
+ *(.bss)
+ *(.bss.*)
+ *(.gnu.linkonce.b.*)
+ *(COMMON)
+ }
+
+ PROVIDE (end = .);
+ _end = .;
+
+ /* 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) }
+ .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) }
+ .debug_ranges 0 : { *(.debug_ranges) }
+
+ /* 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) }
+
+ /* Special sections generated by gcc */
+ /* Newer GNU linkers strip by default */
+ .mdebug.abi32 0 : { KEEP(*(.mdebug.abi32)) }
+ .mdebug.abiN32 0 : { KEEP(*(.mdebug.abiN32)) }
+ .mdebug.abi64 0 : { KEEP(*(.mdebug.abi64)) }
+ .mdebug.abiO64 0 : { KEEP(*(.mdebug.abiO64)) }
+ .mdebug.eabi32 0 : { KEEP(*(.mdebug.eabi32)) }
+ .mdebug.eabi64 0 : { KEEP(*(.mdebug.eabi64)) }
+ .gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) }
+ .gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) }
+}
diff --git a/libgloss/mips/mti64.ld b/libgloss/mips/mti64.ld
new file mode 100644
index 0000000..1bd11f6
--- /dev/null
+++ b/libgloss/mips/mti64.ld
@@ -0,0 +1,187 @@
+/* The following TEXT start address leaves space for the monitor
+ workspace. This linker script links ISA64r2 programs for use with the
+ simulator. We set the ISA explicitly so that we can link objects of
+ different ISAs that are subsets of ISA64r2 but are not extensions of
+ each other (e.g., MIPS32r2 and MIPS64). */
+
+ENTRY(_start)
+OUTPUT_ARCH("mips:isa64r2")
+OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradbigmips", "elf32-tradlittlemips")
+GROUP(-lc -lidt -lgcc)
+SEARCH_DIR(.)
+__DYNAMIC = 0;
+STARTUP(crt0.o)
+
+/*
+ * Allocate the stack to be at the top of memory, since the stack
+ * grows down
+ */
+PROVIDE (__stack = 0);
+/* PROVIDE (__global = 0); */
+
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist.
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we multiple object file
+ * formats, as some prepend an underscore.
+ */
+PROVIDE (hardware_exit_hook = 0);
+PROVIDE (hardware_hazard_hook = 0);
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+
+SECTIONS
+{
+ . = 0x80020000;
+ .text : {
+ _ftext = . ;
+ PROVIDE (eprol = .);
+ *(.text)
+ *(.text.*)
+ *(.gnu.linkonce.t.*)
+ *(.mips16.fn.*)
+ *(.mips16.call.*)
+ }
+ .init : {
+ KEEP (*(.init))
+ }
+ .fini : {
+ KEEP (*(.fini))
+ }
+ .rel.sdata : {
+ PROVIDE (__runtime_reloc_start = .);
+ *(.rel.sdata)
+ PROVIDE (__runtime_reloc_stop = .);
+ }
+ PROVIDE (etext = .);
+ _etext = .;
+
+ .eh_frame_hdr : { *(.eh_frame_hdr) }
+ .eh_frame : { KEEP (*(.eh_frame)) }
+ .gcc_except_table : { *(.gcc_except_table) }
+ .jcr : { KEEP (*(.jcr)) }
+ .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))
+
+ /* We don't want to include the .ctor section from
+ 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) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ }
+
+ . = .;
+ .rodata : {
+ *(.rdata)
+ *(.rodata)
+ *(.rodata.*)
+ *(.gnu.linkonce.r.*)
+ }
+ _fdata = ALIGN(16);
+ .data : {
+ *(.data)
+ *(.data.*)
+ *(.gnu.linkonce.d.*)
+ }
+ . = ALIGN(8);
+ _gp = . + 0x8000;
+ __global = _gp;
+ .lit8 : {
+ *(.lit8)
+ }
+ .lit4 : {
+ *(.lit4)
+ }
+ .sdata : {
+ *(.sdata)
+ *(.sdata.*)
+ *(.gnu.linkonce.s.*)
+ }
+ . = ALIGN(4);
+ PROVIDE (edata = .);
+ _edata = .;
+ _fbss = .;
+ .sbss : {
+ *(.sbss)
+ *(.sbss.*)
+ *(.gnu.linkonce.sb.*)
+ *(.scommon)
+ }
+ .bss : {
+ _bss_start = . ;
+ *(.bss)
+ *(.bss.*)
+ *(.gnu.linkonce.b.*)
+ *(COMMON)
+ }
+
+ PROVIDE (end = .);
+ _end = .;
+
+ /* 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) }
+ .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) }
+ .debug_ranges 0 : { *(.debug_ranges) }
+
+ /* 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) }
+
+ /* Special sections generated by gcc */
+ /* Newer GNU linkers strip by default */
+ .mdebug.abi32 0 : { KEEP(*(.mdebug.abi32)) }
+ .mdebug.abiN32 0 : { KEEP(*(.mdebug.abiN32)) }
+ .mdebug.abi64 0 : { KEEP(*(.mdebug.abi64)) }
+ .mdebug.abiO64 0 : { KEEP(*(.mdebug.abiO64)) }
+ .mdebug.eabi32 0 : { KEEP(*(.mdebug.eabi32)) }
+ .mdebug.eabi64 0 : { KEEP(*(.mdebug.eabi64)) }
+ .gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) }
+ .gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) }
+}
diff --git a/libgloss/mips/mti64_64.ld b/libgloss/mips/mti64_64.ld
new file mode 100644
index 0000000..a058b96
--- /dev/null
+++ b/libgloss/mips/mti64_64.ld
@@ -0,0 +1,190 @@
+/* The following TEXT start address leaves space for the monitor
+ workspace. This linker script links ISA64r2 programs for use with the
+ simulator. We set the ISA explicitly so that we can link objects of
+ different ISAs that are subsets of ISA64r2 but are not extensions of
+ each other (e.g., MIPS32r2 and MIPS64).
+
+ It differs from mti64.ld by using the elf64 ABI targets instead of the
+ elf32 ABI targets in OUTPUT_FORMAT. */
+
+ENTRY(_start)
+OUTPUT_ARCH("mips:isa64r2")
+OUTPUT_FORMAT("elf64-tradlittlemips", "elf64-tradbigmips", "elf64-tradlittlemips")
+GROUP(-lc -lidt -lgcc)
+SEARCH_DIR(.)
+__DYNAMIC = 0;
+STARTUP(crt0.o)
+
+/*
+ * Allocate the stack to be at the top of memory, since the stack
+ * grows down
+ */
+PROVIDE (__stack = 0);
+/* PROVIDE (__global = 0); */
+
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist.
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we multiple object file
+ * formats, as some prepend an underscore.
+ */
+PROVIDE (hardware_exit_hook = 0);
+PROVIDE (hardware_hazard_hook = 0);
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+
+SECTIONS
+{
+ . = 0xFFFFFFFF80020000;
+ .text : {
+ _ftext = . ;
+ PROVIDE (eprol = .);
+ *(.text)
+ *(.text.*)
+ *(.gnu.linkonce.t.*)
+ *(.mips16.fn.*)
+ *(.mips16.call.*)
+ }
+ .init : {
+ KEEP (*(.init))
+ }
+ .fini : {
+ KEEP (*(.fini))
+ }
+ .rel.sdata : {
+ PROVIDE (__runtime_reloc_start = .);
+ *(.rel.sdata)
+ PROVIDE (__runtime_reloc_stop = .);
+ }
+ PROVIDE (etext = .);
+ _etext = .;
+
+ .eh_frame_hdr : { *(.eh_frame_hdr) }
+ .eh_frame : { KEEP (*(.eh_frame)) }
+ .gcc_except_table : { *(.gcc_except_table) }
+ .jcr : { KEEP (*(.jcr)) }
+ .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))
+
+ /* We don't want to include the .ctor section from
+ 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) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ }
+
+ . = .;
+ .rodata : {
+ *(.rdata)
+ *(.rodata)
+ *(.rodata.*)
+ *(.gnu.linkonce.r.*)
+ }
+ _fdata = ALIGN(16);
+ .data : {
+ *(.data)
+ *(.data.*)
+ *(.gnu.linkonce.d.*)
+ }
+ . = ALIGN(8);
+ _gp = . + 0x8000;
+ __global = _gp;
+ .lit8 : {
+ *(.lit8)
+ }
+ .lit4 : {
+ *(.lit4)
+ }
+ .sdata : {
+ *(.sdata)
+ *(.sdata.*)
+ *(.gnu.linkonce.s.*)
+ }
+ . = ALIGN(4);
+ PROVIDE (edata = .);
+ _edata = .;
+ _fbss = .;
+ .sbss : {
+ *(.sbss)
+ *(.sbss.*)
+ *(.gnu.linkonce.sb.*)
+ *(.scommon)
+ }
+ .bss : {
+ _bss_start = . ;
+ *(.bss)
+ *(.bss.*)
+ *(.gnu.linkonce.b.*)
+ *(COMMON)
+ }
+
+ PROVIDE (end = .);
+ _end = .;
+
+ /* 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) }
+ .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) }
+ .debug_ranges 0 : { *(.debug_ranges) }
+
+ /* 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) }
+
+ /* Special sections generated by gcc */
+ /* Newer GNU linkers strip by default */
+ .mdebug.abi32 0 : { KEEP(*(.mdebug.abi32)) }
+ .mdebug.abiN32 0 : { KEEP(*(.mdebug.abiN32)) }
+ .mdebug.abi64 0 : { KEEP(*(.mdebug.abi64)) }
+ .mdebug.abiO64 0 : { KEEP(*(.mdebug.abiO64)) }
+ .mdebug.eabi32 0 : { KEEP(*(.mdebug.eabi32)) }
+ .mdebug.eabi64 0 : { KEEP(*(.mdebug.eabi64)) }
+ .gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) }
+ .gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) }
+}
diff --git a/libgloss/mips/mti64_n32.ld b/libgloss/mips/mti64_n32.ld
new file mode 100644
index 0000000..279571b
--- /dev/null
+++ b/libgloss/mips/mti64_n32.ld
@@ -0,0 +1,190 @@
+/* The following TEXT start address leaves space for the monitor
+ workspace. This linker script links ISA64r2 programs for use with the
+ simulator. We set the ISA explicitly so that we can link objects of
+ different ISAs that are subsets of ISA64r2 but are not extensions of
+ each other (e.g., MIPS32r2 and MIPS64).
+
+ It differs from mti64.ld by using the n32 ABI targets instead of the
+ o32 ABI targets in OUTPUT_FORMAT. */
+
+ENTRY(_start)
+OUTPUT_ARCH("mips:isa64r2")
+OUTPUT_FORMAT("elf32-ntradlittlemips", "elf32-ntradbigmips", "elf32-ntradlittlemips")
+GROUP(-lc -lidt -lgcc)
+SEARCH_DIR(.)
+__DYNAMIC = 0;
+STARTUP(crt0.o)
+
+/*
+ * Allocate the stack to be at the top of memory, since the stack
+ * grows down
+ */
+PROVIDE (__stack = 0);
+/* PROVIDE (__global = 0); */
+
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist.
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we multiple object file
+ * formats, as some prepend an underscore.
+ */
+PROVIDE (hardware_exit_hook = 0);
+PROVIDE (hardware_hazard_hook = 0);
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+
+SECTIONS
+{
+ . = 0x80020000;
+ .text : {
+ _ftext = . ;
+ PROVIDE (eprol = .);
+ *(.text)
+ *(.text.*)
+ *(.gnu.linkonce.t.*)
+ *(.mips16.fn.*)
+ *(.mips16.call.*)
+ }
+ .init : {
+ KEEP (*(.init))
+ }
+ .fini : {
+ KEEP (*(.fini))
+ }
+ .rel.sdata : {
+ PROVIDE (__runtime_reloc_start = .);
+ *(.rel.sdata)
+ PROVIDE (__runtime_reloc_stop = .);
+ }
+ PROVIDE (etext = .);
+ _etext = .;
+
+ .eh_frame_hdr : { *(.eh_frame_hdr) }
+ .eh_frame : { KEEP (*(.eh_frame)) }
+ .gcc_except_table : { *(.gcc_except_table) }
+ .jcr : { KEEP (*(.jcr)) }
+ .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))
+
+ /* We don't want to include the .ctor section from
+ 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) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ }
+
+ . = .;
+ .rodata : {
+ *(.rdata)
+ *(.rodata)
+ *(.rodata.*)
+ *(.gnu.linkonce.r.*)
+ }
+ _fdata = ALIGN(16);
+ .data : {
+ *(.data)
+ *(.data.*)
+ *(.gnu.linkonce.d.*)
+ }
+ . = ALIGN(8);
+ _gp = . + 0x8000;
+ __global = _gp;
+ .lit8 : {
+ *(.lit8)
+ }
+ .lit4 : {
+ *(.lit4)
+ }
+ .sdata : {
+ *(.sdata)
+ *(.sdata.*)
+ *(.gnu.linkonce.s.*)
+ }
+ . = ALIGN(4);
+ PROVIDE (edata = .);
+ _edata = .;
+ _fbss = .;
+ .sbss : {
+ *(.sbss)
+ *(.sbss.*)
+ *(.gnu.linkonce.sb.*)
+ *(.scommon)
+ }
+ .bss : {
+ _bss_start = . ;
+ *(.bss)
+ *(.bss.*)
+ *(.gnu.linkonce.b.*)
+ *(COMMON)
+ }
+
+ PROVIDE (end = .);
+ _end = .;
+
+ /* 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) }
+ .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) }
+ .debug_ranges 0 : { *(.debug_ranges) }
+
+ /* 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) }
+
+ /* Special sections generated by gcc */
+ /* Newer GNU linkers strip by default */
+ .mdebug.abi32 0 : { KEEP(*(.mdebug.abi32)) }
+ .mdebug.abiN32 0 : { KEEP(*(.mdebug.abiN32)) }
+ .mdebug.abi64 0 : { KEEP(*(.mdebug.abi64)) }
+ .mdebug.abiO64 0 : { KEEP(*(.mdebug.abiO64)) }
+ .mdebug.eabi32 0 : { KEEP(*(.mdebug.eabi32)) }
+ .mdebug.eabi64 0 : { KEEP(*(.mdebug.eabi64)) }
+ .gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) }
+ .gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) }
+}
diff --git a/libgloss/mips/sde32.ld b/libgloss/mips/sde32.ld
new file mode 100644
index 0000000..715639e
--- /dev/null
+++ b/libgloss/mips/sde32.ld
@@ -0,0 +1,185 @@
+/* The following TEXT start address leaves space for the monitor
+ workspace. This linker script links ISA32r2 programs for use with
+ the simulator. */
+
+ENTRY(_start)
+OUTPUT_ARCH("mips:isa32r2")
+OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradbigmips", "elf32-tradlittlemips")
+GROUP(-lc -lidt -lgcc)
+SEARCH_DIR(.)
+__DYNAMIC = 0;
+STARTUP(crt0.o)
+
+/*
+ * Allocate the stack to be at the top of memory, since the stack
+ * grows down
+ */
+PROVIDE (__stack = 0);
+/* PROVIDE (__global = 0); */
+
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist.
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we multiple object file
+ * formats, as some prepend an underscore.
+ */
+PROVIDE (hardware_exit_hook = 0);
+PROVIDE (hardware_hazard_hook = 0);
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+
+SECTIONS
+{
+ . = 0x80020000;
+ .text : {
+ _ftext = . ;
+ PROVIDE (eprol = .);
+ *(.text)
+ *(.text.*)
+ *(.gnu.linkonce.t.*)
+ *(.mips16.fn.*)
+ *(.mips16.call.*)
+ }
+ .init : {
+ KEEP (*(.init))
+ }
+ .fini : {
+ KEEP (*(.fini))
+ }
+ .rel.sdata : {
+ PROVIDE (__runtime_reloc_start = .);
+ *(.rel.sdata)
+ PROVIDE (__runtime_reloc_stop = .);
+ }
+ PROVIDE (etext = .);
+ _etext = .;
+
+ .eh_frame_hdr : { *(.eh_frame_hdr) }
+ .eh_frame : { KEEP (*(.eh_frame)) }
+ .gcc_except_table : { *(.gcc_except_table) }
+ .jcr : { KEEP (*(.jcr)) }
+ .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))
+
+ /* We don't want to include the .ctor section from
+ 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) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ }
+
+ . = .;
+ .rodata : {
+ *(.rdata)
+ *(.rodata)
+ *(.rodata.*)
+ *(.gnu.linkonce.r.*)
+ }
+ _fdata = ALIGN(16);
+ .data : {
+ *(.data)
+ *(.data.*)
+ *(.gnu.linkonce.d.*)
+ }
+ . = ALIGN(8);
+ _gp = . + 0x8000;
+ __global = _gp;
+ .lit8 : {
+ *(.lit8)
+ }
+ .lit4 : {
+ *(.lit4)
+ }
+ .sdata : {
+ *(.sdata)
+ *(.sdata.*)
+ *(.gnu.linkonce.s.*)
+ }
+ . = ALIGN(4);
+ PROVIDE (edata = .);
+ _edata = .;
+ _fbss = .;
+ .sbss : {
+ *(.sbss)
+ *(.sbss.*)
+ *(.gnu.linkonce.sb.*)
+ *(.scommon)
+ }
+ .bss : {
+ _bss_start = . ;
+ *(.bss)
+ *(.bss.*)
+ *(.gnu.linkonce.b.*)
+ *(COMMON)
+ }
+
+ PROVIDE (end = .);
+ _end = .;
+
+ /* 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) }
+ .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) }
+ .debug_ranges 0 : { *(.debug_ranges) }
+
+ /* 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) }
+
+ /* Special sections generated by gcc */
+ /* Newer GNU linkers strip by default */
+ .mdebug.abi32 0 : { KEEP(*(.mdebug.abi32)) }
+ .mdebug.abiN32 0 : { KEEP(*(.mdebug.abiN32)) }
+ .mdebug.abi64 0 : { KEEP(*(.mdebug.abi64)) }
+ .mdebug.abiO64 0 : { KEEP(*(.mdebug.abiO64)) }
+ .mdebug.eabi32 0 : { KEEP(*(.mdebug.eabi32)) }
+ .mdebug.eabi64 0 : { KEEP(*(.mdebug.eabi64)) }
+ .gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) }
+ .gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) }
+}
diff --git a/libgloss/mips/sde64.ld b/libgloss/mips/sde64.ld
new file mode 100644
index 0000000..1bd11f6
--- /dev/null
+++ b/libgloss/mips/sde64.ld
@@ -0,0 +1,187 @@
+/* The following TEXT start address leaves space for the monitor
+ workspace. This linker script links ISA64r2 programs for use with the
+ simulator. We set the ISA explicitly so that we can link objects of
+ different ISAs that are subsets of ISA64r2 but are not extensions of
+ each other (e.g., MIPS32r2 and MIPS64). */
+
+ENTRY(_start)
+OUTPUT_ARCH("mips:isa64r2")
+OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradbigmips", "elf32-tradlittlemips")
+GROUP(-lc -lidt -lgcc)
+SEARCH_DIR(.)
+__DYNAMIC = 0;
+STARTUP(crt0.o)
+
+/*
+ * Allocate the stack to be at the top of memory, since the stack
+ * grows down
+ */
+PROVIDE (__stack = 0);
+/* PROVIDE (__global = 0); */
+
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist.
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we multiple object file
+ * formats, as some prepend an underscore.
+ */
+PROVIDE (hardware_exit_hook = 0);
+PROVIDE (hardware_hazard_hook = 0);
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+
+SECTIONS
+{
+ . = 0x80020000;
+ .text : {
+ _ftext = . ;
+ PROVIDE (eprol = .);
+ *(.text)
+ *(.text.*)
+ *(.gnu.linkonce.t.*)
+ *(.mips16.fn.*)
+ *(.mips16.call.*)
+ }
+ .init : {
+ KEEP (*(.init))
+ }
+ .fini : {
+ KEEP (*(.fini))
+ }
+ .rel.sdata : {
+ PROVIDE (__runtime_reloc_start = .);
+ *(.rel.sdata)
+ PROVIDE (__runtime_reloc_stop = .);
+ }
+ PROVIDE (etext = .);
+ _etext = .;
+
+ .eh_frame_hdr : { *(.eh_frame_hdr) }
+ .eh_frame : { KEEP (*(.eh_frame)) }
+ .gcc_except_table : { *(.gcc_except_table) }
+ .jcr : { KEEP (*(.jcr)) }
+ .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))
+
+ /* We don't want to include the .ctor section from
+ 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) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ }
+
+ . = .;
+ .rodata : {
+ *(.rdata)
+ *(.rodata)
+ *(.rodata.*)
+ *(.gnu.linkonce.r.*)
+ }
+ _fdata = ALIGN(16);
+ .data : {
+ *(.data)
+ *(.data.*)
+ *(.gnu.linkonce.d.*)
+ }
+ . = ALIGN(8);
+ _gp = . + 0x8000;
+ __global = _gp;
+ .lit8 : {
+ *(.lit8)
+ }
+ .lit4 : {
+ *(.lit4)
+ }
+ .sdata : {
+ *(.sdata)
+ *(.sdata.*)
+ *(.gnu.linkonce.s.*)
+ }
+ . = ALIGN(4);
+ PROVIDE (edata = .);
+ _edata = .;
+ _fbss = .;
+ .sbss : {
+ *(.sbss)
+ *(.sbss.*)
+ *(.gnu.linkonce.sb.*)
+ *(.scommon)
+ }
+ .bss : {
+ _bss_start = . ;
+ *(.bss)
+ *(.bss.*)
+ *(.gnu.linkonce.b.*)
+ *(COMMON)
+ }
+
+ PROVIDE (end = .);
+ _end = .;
+
+ /* 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) }
+ .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) }
+ .debug_ranges 0 : { *(.debug_ranges) }
+
+ /* 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) }
+
+ /* Special sections generated by gcc */
+ /* Newer GNU linkers strip by default */
+ .mdebug.abi32 0 : { KEEP(*(.mdebug.abi32)) }
+ .mdebug.abiN32 0 : { KEEP(*(.mdebug.abiN32)) }
+ .mdebug.abi64 0 : { KEEP(*(.mdebug.abi64)) }
+ .mdebug.abiO64 0 : { KEEP(*(.mdebug.abiO64)) }
+ .mdebug.eabi32 0 : { KEEP(*(.mdebug.eabi32)) }
+ .mdebug.eabi64 0 : { KEEP(*(.mdebug.eabi64)) }
+ .gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) }
+ .gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) }
+}