Merge remote-tracking branch 'remotes/xtensa/tags/20141103-xtensa' into staging

Xtensa fixes and improvements 2014-11-03:
- build fixes for cores w/o windowed registers and with profiling
  interrupts;
- fix uImage load address for MMUv2 cores;
- add script for automatic core import from xtensa configuration overlay.

# gpg: Signature made Sun 02 Nov 2014 22:04:44 GMT using RSA key ID F83FA044
# gpg: Good signature from "Max Filippov <max.filippov@cogentembedded.com>"
# gpg:                 aka "Max Filippov <jcmvbkbc@gmail.com>"

* remotes/xtensa/tags/20141103-xtensa:
  MAINTAINERS: update xtensa boards
  target-xtensa: fix build for cores w/o windowed registers
  target-xtensa: add core importing script
  hw/xtensa/xtfpga: treat uImage load address as virtual
  hw/core/loader: implement address translation in uimage loader
  target-xtensa: avoid duplicate timer interrupt delivery
  target-xtensa: tests: pre-process tests linker script
  target-xtensa: add definition for XTHAL_INTTYPE_PROFILING

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

19 files changed, 249 insertions, 146 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 94366ef0115..dd02d96624a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -583,12 +583,13 @@ Xtensa Machines
 sim
 M: Max Filippov <jcmvbkbc@gmail.com>
 S: Maintained
-F: hw/xtensa/xtensa_sim.c
+F: hw/xtensa/sim.c
 
-Avnet LX60
+XTFPGA (LX60, LX200, ML605, KC705)
 M: Max Filippov <jcmvbkbc@gmail.com>
 S: Maintained
-F: hw/xtensa/xtensa_lx60.c
+F: hw/xtensa/xtfpga.c
+F: hw/net/opencores_eth.c
 
 Devices
 -------
diff --git a/hw/arm/boot.c b/hw/arm/boot.c
index bffbea5e0e7..0014c34ddd1 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -580,7 +580,7 @@ void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info)
     entry = elf_entry;
     if (kernel_size < 0) {
         kernel_size = load_uimage(info->kernel_filename, &entry, NULL,
-                                  &is_linux);
+                                  &is_linux, NULL, NULL);
     }
     /* On aarch64, it's the bootloader's job to uncompress the kernel. */
     if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64) && kernel_size < 0) {
diff --git a/hw/core/loader.c b/hw/core/loader.c
index 5f3a8598c5b..bbe6eb3d825 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -477,7 +477,9 @@ static ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src,
 
 /* Load a U-Boot image.  */
 static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr,
-                            int *is_linux, uint8_t image_type)
+                            int *is_linux, uint8_t image_type,
+                            uint64_t (*translate_fn)(void *, uint64_t),
+                            void *translate_opaque)
 {
     int fd;
     int size;
@@ -511,6 +513,9 @@ static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr,
     switch (hdr->ih_type) {
     case IH_TYPE_KERNEL:
         address = hdr->ih_load;
+        if (translate_fn) {
+            address = translate_fn(translate_opaque, address);
+        }
         if (loadaddr) {
             *loadaddr = hdr->ih_load;
         }
@@ -587,15 +592,19 @@ out:
 }
 
 int load_uimage(const char *filename, hwaddr *ep, hwaddr *loadaddr,
-                int *is_linux)
+                int *is_linux,
+                uint64_t (*translate_fn)(void *, uint64_t),
+                void *translate_opaque)
 {
-    return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL);
+    return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL,
+                            translate_fn, translate_opaque);
 }
 
 /* Load a ramdisk.  */
 int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz)
 {
-    return load_uboot_image(filename, NULL, &addr, NULL, IH_TYPE_RAMDISK);
+    return load_uboot_image(filename, NULL, &addr, NULL, IH_TYPE_RAMDISK,
+                            NULL, NULL);
 }
 
 /* This simply prevents g_malloc in the function below from allocating
diff --git a/hw/m68k/an5206.c b/hw/m68k/an5206.c
index a9ac27089b2..f1f13504c06 100644
--- a/hw/m68k/an5206.c
+++ b/hw/m68k/an5206.c
@@ -74,7 +74,8 @@ static void an5206_init(MachineState *machine)
                            NULL, NULL, 1, ELF_MACHINE, 0);
     entry = elf_entry;
     if (kernel_size < 0) {
-        kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL);
+        kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL,
+                                  NULL, NULL);
     }
     if (kernel_size < 0) {
         kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR,
diff --git a/hw/m68k/dummy_m68k.c b/hw/m68k/dummy_m68k.c
index 957ef82f887..facd561efa1 100644
--- a/hw/m68k/dummy_m68k.c
+++ b/hw/m68k/dummy_m68k.c
@@ -50,7 +50,8 @@ static void dummy_m68k_init(MachineState *machine)
                                NULL, NULL, 1, ELF_MACHINE, 0);
         entry = elf_entry;
         if (kernel_size < 0) {
-            kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL);
+            kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL,
+                                      NULL, NULL);
         }
         if (kernel_size < 0) {
             kernel_size = load_image_targphys(kernel_filename,
diff --git a/hw/m68k/mcf5208.c b/hw/m68k/mcf5208.c
index 188230f9013..a01a4458e67 100644
--- a/hw/m68k/mcf5208.c
+++ b/hw/m68k/mcf5208.c
@@ -279,7 +279,8 @@ static void mcf5208evb_init(MachineState *machine)
                            NULL, NULL, 1, ELF_MACHINE, 0);
     entry = elf_entry;
     if (kernel_size < 0) {
-        kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL);
+        kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL,
+                                  NULL, NULL);
     }
     if (kernel_size < 0) {
         kernel_size = load_image_targphys(kernel_filename, 0x40000000,
diff --git a/hw/microblaze/boot.c b/hw/microblaze/boot.c
index 6bf36d046fd..a2843cdf993 100644
--- a/hw/microblaze/boot.c
+++ b/hw/microblaze/boot.c
@@ -154,7 +154,8 @@ void microblaze_load_kernel(MicroBlazeCPU *cpu, hwaddr ddr_base,
         if (kernel_size < 0) {
             hwaddr uentry, loadaddr;
 
-            kernel_size = load_uimage(kernel_filename, &uentry, &loadaddr, 0);
+            kernel_size = load_uimage(kernel_filename, &uentry, &loadaddr, 0,
+                                      NULL, NULL);
             boot_info.bootstrap_pc = uentry;
             high = (loadaddr + kernel_size + 3) & ~3;
         }
diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c
index c110033c2ee..1da0657ddf2 100644
--- a/hw/openrisc/openrisc_sim.c
+++ b/hw/openrisc/openrisc_sim.c
@@ -72,7 +72,7 @@ static void cpu_openrisc_load_kernel(ram_addr_t ram_size,
         entry = elf_entry;
         if (kernel_size < 0) {
             kernel_size = load_uimage(kernel_filename,
-                                      &entry, NULL, NULL);
+                                      &entry, NULL, NULL, NULL, NULL);
         }
         if (kernel_size < 0) {
             kernel_size = load_image_targphys(kernel_filename,
diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index 16c85efab51..2157d87c196 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -830,7 +830,8 @@ void ppce500_init(MachineState *machine, PPCE500Params *params)
          * Hrm. No ELF image? Try a uImage, maybe someone is giving us an
          * ePAPR compliant kernel
          */
-        kernel_size = load_uimage(filename, &bios_entry, &loadaddr, NULL);
+        kernel_size = load_uimage(filename, &bios_entry, &loadaddr, NULL,
+                                  NULL, NULL);
         if (kernel_size < 0) {
             fprintf(stderr, "qemu: could not load firmware '%s'\n", filename);
             exit(1);
diff --git a/hw/ppc/ppc440_bamboo.c b/hw/ppc/ppc440_bamboo.c
index 81a06d310df..778970aa9be 100644
--- a/hw/ppc/ppc440_bamboo.c
+++ b/hw/ppc/ppc440_bamboo.c
@@ -253,7 +253,8 @@ static void bamboo_init(MachineState *machine)
 
     /* Load kernel. */
     if (kernel_filename) {
-        success = load_uimage(kernel_filename, &entry, &loadaddr, NULL);
+        success = load_uimage(kernel_filename, &entry, &loadaddr, NULL,
+                              NULL, NULL);
         if (success < 0) {
             success = load_elf(kernel_filename, NULL, NULL, &elf_entry,
                                &elf_lowaddr, NULL, 1, ELF_MACHINE, 0);
diff --git a/hw/xtensa/pic_cpu.c b/hw/xtensa/pic_cpu.c
index e2005bd981a..18825d19f04 100644
--- a/hw/xtensa/pic_cpu.c
+++ b/hw/xtensa/pic_cpu.c
@@ -31,14 +31,14 @@
 
 void xtensa_advance_ccount(CPUXtensaState *env, uint32_t d)
 {
-    uint32_t old_ccount = env->sregs[CCOUNT];
+    uint32_t old_ccount = env->sregs[CCOUNT] + 1;
 
     env->sregs[CCOUNT] += d;
 
     if (xtensa_option_enabled(env->config, XTENSA_OPTION_TIMER_INTERRUPT)) {
         int i;
         for (i = 0; i < env->config->nccompare; ++i) {
-            if (env->sregs[CCOMPARE + i] - old_ccount <= d) {
+            if (env->sregs[CCOMPARE + i] - old_ccount < d) {
                 xtensa_timer_irq(env, i, 1);
             }
         }
diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
index 0100c3115ba..e5a6bba7830 100644
--- a/hw/xtensa/xtfpga.c
+++ b/hw/xtensa/xtfpga.c
@@ -328,7 +328,8 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine)
         } else {
             hwaddr ep;
             int is_linux;
-            success = load_uimage(kernel_filename, &ep, NULL, &is_linux);
+            success = load_uimage(kernel_filename, &ep, NULL, &is_linux,
+                                  translate_phys_addr, cpu);
             if (success > 0 && is_linux) {
                 entry_point = ep;
             } else {
diff --git a/include/hw/loader.h b/include/hw/loader.h
index 9190387b8e5..054c6a22b57 100644
--- a/include/hw/loader.h
+++ b/include/hw/loader.h
@@ -30,7 +30,9 @@ int load_elf(const char *filename, uint64_t (*translate_fn)(void *, uint64_t),
 int load_aout(const char *filename, hwaddr addr, int max_sz,
               int bswap_needed, hwaddr target_page_size);
 int load_uimage(const char *filename, hwaddr *ep,
-                hwaddr *loadaddr, int *is_linux);
+                hwaddr *loadaddr, int *is_linux,
+                uint64_t (*translate_fn)(void *, uint64_t),
+                void *translate_opaque);
 
 /**
  * load_ramdisk:
diff --git a/target-xtensa/cpu.h b/target-xtensa/cpu.h
index 9cf52758c7c..beb5486fc74 100644
--- a/target-xtensa/cpu.h
+++ b/target-xtensa/cpu.h
@@ -266,6 +266,7 @@ typedef enum {
     INTTYPE_TIMER,
     INTTYPE_DEBUG,
     INTTYPE_WRITE_ERR,
+    INTTYPE_PROFILING,
     INTTYPE_MAX
 } interrupt_type;
 
diff --git a/target-xtensa/import_core.sh b/target-xtensa/import_core.sh
new file mode 100755
index 00000000000..73791ec5455
--- /dev/null
+++ b/target-xtensa/import_core.sh
@@ -0,0 +1,53 @@
+#! /bin/bash -e
+
+OVERLAY="$1"
+NAME="$2"
+FREQ=40000
+BASE=$(dirname "$0")
+TARGET="$BASE"/core-$NAME
+
+[ $# -ge 2 -a -f "$OVERLAY" ] || { cat <<EOF
+Usage: $0 overlay-archive-to-import core-name [frequency-in-KHz]
+    overlay-archive-to-import:  file name of xtensa-config-overlay.tar.gz
+                                to import configuration from.
+    core-name:                  QEMU name of the imported core. Must be valid
+                                C identifier.
+    frequency-in-KHz:           core frequency (40MHz if not specified).
+EOF
+exit
+}
+
+[ $# -ge 3 ] && FREQ="$3"
+mkdir -p "$TARGET"
+tar -xf "$OVERLAY" -C "$TARGET" --strip-components=1 \
+    --xform='s/core/core-isa/' config/core.h
+tar -xf "$OVERLAY" -O gdb/xtensa-config.c | \
+    sed -n '1,/*\//p;/pc/,/a15/p' > "$TARGET"/gdb-config.c
+NUM_REGS=$(grep XTREG "$TARGET"/gdb-config.c | wc -l)
+
+cat <<EOF > "${TARGET}.c"
+#include "cpu.h"
+#include "exec/exec-all.h"
+#include "exec/gdbstub.h"
+#include "qemu/host-utils.h"
+
+#include "core-$NAME/core-isa.h"
+#include "overlay_tool.h"
+
+static const XtensaConfig $NAME __attribute__((unused)) = {
+    .name = "$NAME",
+    .gdb_regmap = {
+        .num_regs = $NUM_REGS,
+        .reg = {
+#include "core-$NAME/gdb-config.c"
+        }
+    },
+    .clock_freq_khz = $FREQ,
+    DEFAULT_SECTIONS
+};
+
+REGISTER_CORE($NAME)
+EOF
+
+grep -q core-${NAME}.o "$BASE"/Makefile.objs || \
+    echo "obj-y += core-${NAME}.o" >> "$BASE"/Makefile.objs
diff --git a/target-xtensa/overlay_tool.h b/target-xtensa/overlay_tool.h
index 4c0de7f06a5..6105d4c8ffb 100644
--- a/target-xtensa/overlay_tool.h
+++ b/target-xtensa/overlay_tool.h
@@ -108,20 +108,27 @@
 #define XCHAL_WINDOW_UF12_VECOFS        0x00000140
 #endif
 
+#if XCHAL_HAVE_WINDOWED
+#define WINDOW_VECTORS \
+   [EXC_WINDOW_OVERFLOW4] = XCHAL_WINDOW_OF4_VECOFS + \
+       XCHAL_WINDOW_VECTORS_VADDR, \
+   [EXC_WINDOW_UNDERFLOW4] = XCHAL_WINDOW_UF4_VECOFS + \
+       XCHAL_WINDOW_VECTORS_VADDR, \
+   [EXC_WINDOW_OVERFLOW8] = XCHAL_WINDOW_OF8_VECOFS + \
+       XCHAL_WINDOW_VECTORS_VADDR, \
+   [EXC_WINDOW_UNDERFLOW8] = XCHAL_WINDOW_UF8_VECOFS + \
+       XCHAL_WINDOW_VECTORS_VADDR, \
+   [EXC_WINDOW_OVERFLOW12] = XCHAL_WINDOW_OF12_VECOFS + \
+       XCHAL_WINDOW_VECTORS_VADDR, \
+   [EXC_WINDOW_UNDERFLOW12] = XCHAL_WINDOW_UF12_VECOFS + \
+       XCHAL_WINDOW_VECTORS_VADDR,
+#else
+#define WINDOW_VECTORS
+#endif
+
 #define EXCEPTION_VECTORS { \
         [EXC_RESET] = XCHAL_RESET_VECTOR_VADDR, \
-        [EXC_WINDOW_OVERFLOW4] = XCHAL_WINDOW_OF4_VECOFS + \
-            XCHAL_WINDOW_VECTORS_VADDR, \
-        [EXC_WINDOW_UNDERFLOW4] = XCHAL_WINDOW_UF4_VECOFS + \
-            XCHAL_WINDOW_VECTORS_VADDR, \
-        [EXC_WINDOW_OVERFLOW8] = XCHAL_WINDOW_OF8_VECOFS + \
-            XCHAL_WINDOW_VECTORS_VADDR, \
-        [EXC_WINDOW_UNDERFLOW8] = XCHAL_WINDOW_UF8_VECOFS + \
-            XCHAL_WINDOW_VECTORS_VADDR, \
-        [EXC_WINDOW_OVERFLOW12] = XCHAL_WINDOW_OF12_VECOFS + \
-            XCHAL_WINDOW_VECTORS_VADDR, \
-        [EXC_WINDOW_UNDERFLOW12] = XCHAL_WINDOW_UF12_VECOFS + \
-            XCHAL_WINDOW_VECTORS_VADDR, \
+        WINDOW_VECTORS \
         [EXC_KERNEL] = XCHAL_KERNEL_VECTOR_VADDR, \
         [EXC_USER] = XCHAL_USER_VECTOR_VADDR, \
         [EXC_DOUBLE] = XCHAL_DOUBLEEXC_VECTOR_VADDR, \
@@ -163,6 +170,7 @@
 #define XTHAL_INTTYPE_TBD1 INTTYPE_DEBUG
 #define XTHAL_INTTYPE_TBD2 INTTYPE_WRITE_ERR
 #define XTHAL_INTTYPE_WRITE_ERROR INTTYPE_WRITE_ERR
+#define XTHAL_INTTYPE_PROFILING INTTYPE_PROFILING
 
 
 #define INTERRUPT(i) { \
diff --git a/tests/tcg/xtensa/Makefile b/tests/tcg/xtensa/Makefile
index a70c92be7eb..522a63e36b0 100644
--- a/tests/tcg/xtensa/Makefile
+++ b/tests/tcg/xtensa/Makefile
@@ -13,6 +13,7 @@ SIMFLAGS = --xtensa-core=DC_B_232L --exit_with_target_code $(EXTFLAGS)
 SIMDEBUG = --gdbserve=0
 endif
 
+HOST_CC = gcc
 CC      = $(CROSS)gcc
 AS      = $(CROSS)gcc -x assembler-with-cpp
 LD      = $(CROSS)ld
@@ -21,7 +22,7 @@ XTENSA_SRC_PATH = $(SRC_PATH)/tests/tcg/xtensa
 INCLUDE_DIRS = $(XTENSA_SRC_PATH) $(SRC_PATH)/target-xtensa/core-$(CORE)
 XTENSA_INC = $(addprefix -I,$(INCLUDE_DIRS))
 
-LDFLAGS = -T$(XTENSA_SRC_PATH)/linker.ld
+LDFLAGS = -Tlinker.ld
 
 CRT        = crt.o vectors.o
 
@@ -59,13 +60,16 @@ TESTCASES += test_windowed.tst
 
 all: build
 
+linker.ld: $(XTENSA_SRC_PATH)/linker.ld.S
+	$(HOST_CC) $(XTENSA_INC) -E -P $< -o $@
+
 %.o: $(XTENSA_SRC_PATH)/%.c
 	$(CC) $(XTENSA_INC) $(CFLAGS) -c $< -o $@
 
 %.o: $(XTENSA_SRC_PATH)/%.S
 	$(CC) $(XTENSA_INC) $(ASFLAGS) -c $< -o $@
 
-%.tst: %.o $(XTENSA_SRC_PATH)/macros.inc $(CRT) Makefile
+%.tst: %.o linker.ld $(XTENSA_SRC_PATH)/macros.inc $(CRT) Makefile
 	$(LD) $(LDFLAGS) $(NOSTDFLAGS) $(CRT) $< -o $@
 
 build: $(TESTCASES)
@@ -85,4 +89,4 @@ host-debug-%.tst: %.tst
 	gdb --args $(SIM) $(SIMFLAGS) ./$<
 
 clean:
-	$(RM) -fr $(TESTCASES) $(CRT)
+	$(RM) -fr $(TESTCASES) $(CRT) linker.ld
diff --git a/tests/tcg/xtensa/linker.ld b/tests/tcg/xtensa/linker.ld
deleted file mode 100644
index 4d0b307fd25..00000000000
--- a/tests/tcg/xtensa/linker.ld
+++ /dev/null
@@ -1,112 +0,0 @@
-OUTPUT_FORMAT("elf32-xtensa-le")
-ENTRY(_start)
-
-__DYNAMIC = 0;
-
-MEMORY {
-	ram : ORIGIN = 0xd0000000, LENGTH = 0x08000000  /* 128M */
-	rom : ORIGIN = 0xfe000000, LENGTH = 0x00001000  /* 4k */
-}
-
-SECTIONS
-{
-    .init :
-    {
-        *(.init)
-		*(.init.*)
-    } > rom
-
-    .vector :
-    {
-    . = 0x00000000;
-        *(.vector.window_overflow_4)
-        *(.vector.window_overflow_4.*)
-    . = 0x00000040;
-        *(.vector.window_underflow_4)
-        *(.vector.window_underflow_4.*)
-    . = 0x00000080;
-        *(.vector.window_overflow_8)
-        *(.vector.window_overflow_8.*)
-    . = 0x000000c0;
-        *(.vector.window_underflow_8)
-        *(.vector.window_underflow_8.*)
-    . = 0x00000100;
-        *(.vector.window_overflow_12)
-        *(.vector.window_overflow_12.*)
-    . = 0x00000140;
-        *(.vector.window_underflow_12)
-        *(.vector.window_underflow_12.*)
-
-    . = 0x00000180;
-        *(.vector.level2)
-        *(.vector.level2.*)
-    . = 0x000001c0;
-        *(.vector.level3)
-        *(.vector.level3.*)
-    . = 0x00000200;
-        *(.vector.level4)
-        *(.vector.level4.*)
-    . = 0x00000240;
-        *(.vector.level5)
-        *(.vector.level5.*)
-    . = 0x00000280;
-        *(.vector.level6)
-        *(.vector.level6.*)
-    . = 0x000002c0;
-        *(.vector.level7)
-        *(.vector.level7.*)
-
-    . = 0x00000300;
-        *(.vector.kernel)
-        *(.vector.kernel.*)
-    . = 0x00000340;
-        *(.vector.user)
-        *(.vector.user.*)
-    . = 0x000003c0;
-        *(.vector.double)
-        *(.vector.double.*)
-    } > ram
-
-	.text :
-	{
-		_ftext = .;
-		*(.text .stub .text.* .gnu.linkonce.t.* .literal .literal.*)
-		_etext = .;
-	} > ram
-
-	.rodata :
-	{
-		. = ALIGN(4);
-		_frodata = .;
-		*(.rodata .rodata.* .gnu.linkonce.r.*)
-		*(.rodata1)
-		_erodata = .;
-	} > ram
-
-	.data :
-	{
-		. = ALIGN(4);
-		_fdata = .;
-		*(.data .data.* .gnu.linkonce.d.*)
-		*(.data1)
-		_gp = ALIGN(16);
-		*(.sdata .sdata.* .gnu.linkonce.s.*)
-		_edata = .;
-	} > ram
-
-	.bss :
-	{
-		. = ALIGN(4);
-		_fbss = .;
-		*(.dynsbss)
-		*(.sbss .sbss.* .gnu.linkonce.sb.*)
-		*(.scommon)
-		*(.dynbss)
-		*(.bss .bss.* .gnu.linkonce.b.*)
-		*(COMMON)
-		_ebss = .;
-		_end = .;
-	} > ram
-}
-
-PROVIDE(_fstack = ORIGIN(ram) + LENGTH(ram) - 4);
diff --git a/tests/tcg/xtensa/linker.ld.S b/tests/tcg/xtensa/linker.ld.S
new file mode 100644
index 00000000000..f1e7fa9f8d4
--- /dev/null
+++ b/tests/tcg/xtensa/linker.ld.S
@@ -0,0 +1,130 @@
+#include <core-isa.h>
+
+#if XTENSA_HAVE_BE
+OUTPUT_FORMAT("elf32-xtensa-be")
+#else
+OUTPUT_FORMAT("elf32-xtensa-le")
+#endif
+ENTRY(_start)
+
+__DYNAMIC = 0;
+
+MEMORY {
+    ram : ORIGIN = XCHAL_VECBASE_RESET_VADDR, LENGTH = 0x08000000  /* 128M */
+    rom : ORIGIN = XCHAL_RESET_VECTOR_VADDR, LENGTH = 0x00001000  /* 4k */
+}
+
+SECTIONS
+{
+    .init :
+    {
+        *(.init)
+        *(.init.*)
+    } > rom
+
+    .vector :
+    {
+    . = XCHAL_WINDOW_OF4_VECOFS;
+        *(.vector.window_overflow_4)
+        *(.vector.window_overflow_4.*)
+    . = XCHAL_WINDOW_UF4_VECOFS;
+        *(.vector.window_underflow_4)
+        *(.vector.window_underflow_4.*)
+    . = XCHAL_WINDOW_OF8_VECOFS;
+        *(.vector.window_overflow_8)
+        *(.vector.window_overflow_8.*)
+    . = XCHAL_WINDOW_UF8_VECOFS;
+        *(.vector.window_underflow_8)
+        *(.vector.window_underflow_8.*)
+    . = XCHAL_WINDOW_OF12_VECOFS;
+        *(.vector.window_overflow_12)
+        *(.vector.window_overflow_12.*)
+    . = XCHAL_WINDOW_UF12_VECOFS;
+        *(.vector.window_underflow_12)
+        *(.vector.window_underflow_12.*)
+
+#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 2
+    . = XCHAL_INTLEVEL2_VECOFS;
+        *(.vector.level2)
+        *(.vector.level2.*)
+#endif
+#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 3
+    . = XCHAL_INTLEVEL3_VECOFS;
+        *(.vector.level3)
+        *(.vector.level3.*)
+#endif
+#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 4
+    . = XCHAL_INTLEVEL4_VECOFS;
+        *(.vector.level4)
+        *(.vector.level4.*)
+#endif
+#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 5
+    . = XCHAL_INTLEVEL5_VECOFS;
+        *(.vector.level5)
+        *(.vector.level5.*)
+#endif
+#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 6
+    . = XCHAL_INTLEVEL6_VECOFS;
+        *(.vector.level6)
+        *(.vector.level6.*)
+#endif
+#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 7
+    . = XCHAL_INTLEVEL7_VECOFS;
+        *(.vector.level7)
+        *(.vector.level7.*)
+#endif
+
+    . = XCHAL_KERNEL_VECOFS;
+        *(.vector.kernel)
+        *(.vector.kernel.*)
+    . = XCHAL_USER_VECOFS;
+        *(.vector.user)
+        *(.vector.user.*)
+    . = XCHAL_DOUBLEEXC_VECOFS;
+        *(.vector.double)
+        *(.vector.double.*)
+    } > ram
+
+    .text :
+    {
+        _ftext = .;
+        *(.text .stub .text.* .gnu.linkonce.t.* .literal .literal.*)
+        _etext = .;
+    } > ram
+
+    .rodata :
+    {
+        . = ALIGN(4);
+        _frodata = .;
+        *(.rodata .rodata.* .gnu.linkonce.r.*)
+        *(.rodata1)
+        _erodata = .;
+    } > ram
+
+    .data :
+    {
+        . = ALIGN(4);
+        _fdata = .;
+        *(.data .data.* .gnu.linkonce.d.*)
+        *(.data1)
+        _gp = ALIGN(16);
+        *(.sdata .sdata.* .gnu.linkonce.s.*)
+        _edata = .;
+    } > ram
+
+    .bss :
+    {
+        . = ALIGN(4);
+        _fbss = .;
+        *(.dynsbss)
+        *(.sbss .sbss.* .gnu.linkonce.sb.*)
+        *(.scommon)
+        *(.dynbss)
+        *(.bss .bss.* .gnu.linkonce.b.*)
+        *(COMMON)
+        _ebss = .;
+        _end = .;
+    } > ram
+}
+
+PROVIDE(_fstack = (ORIGIN(ram) & 0xf0000000) + LENGTH(ram) - 16);