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-rw-r--r--lib/romlib/Makefile71
-rwxr-xr-xlib/romlib/gentbl.sh40
-rwxr-xr-xlib/romlib/genvar.sh36
-rwxr-xr-xlib/romlib/genwrappers.sh52
-rw-r--r--lib/romlib/init.s30
-rw-r--r--lib/romlib/jmptbl.i35
-rw-r--r--lib/romlib/romlib.ld.S44
7 files changed, 308 insertions, 0 deletions
diff --git a/lib/romlib/Makefile b/lib/romlib/Makefile
new file mode 100644
index 00000000..46b92068
--- /dev/null
+++ b/lib/romlib/Makefile
@@ -0,0 +1,71 @@
+#
+# Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+AS = $(CROSS_COMPILE)as
+LD = $(CROSS_COMPILE)ld
+OC = $(CROSS_COMPILE)objcopy
+CPP = $(CROSS_COMPILE)cpp
+BUILD_DIR = ../../$(BUILD_PLAT)/romlib
+LIB_DIR = ../../$(BUILD_PLAT)/lib
+WRAPPER_DIR = ../../$(BUILD_PLAT)/libwrapper
+LIBS = -lmbedtls -lfdt -lc
+INC = $(INCLUDES:-I%=-I../../%)
+PPFLAGS = $(INC) $(DEFINES) -P -D__ASSEMBLY__ -D__LINKER__ -MD -MP -MT $(BUILD_DIR)/romlib.ld
+OBJS = $(BUILD_DIR)/jmptbl.o $(BUILD_DIR)/init.o
+
+V ?= 0
+ifeq ($(V),0)
+ Q := @
+else
+ Q :=
+endif
+
+ifeq ($(DEBUG),1)
+ CFLAGS := -g
+ LDFLAGS := -g
+endif
+
+
+.PHONY: all clean distclean
+
+all: $(BUILD_DIR)/romlib.bin $(LIB_DIR)/libwrappers.a
+
+%.o: %.s
+ @echo " AS $@"
+ $(Q)$(AS) $(ASFLAGS) -o $@ $<
+
+$(BUILD_DIR)/%.o: %.s
+ @echo " AS $@"
+ $(Q)$(AS) $(ASFLAGS) -o $@ $<
+
+$(BUILD_DIR)/romlib.ld: romlib.ld.S
+ @echo " PP $@"
+ $(Q)$(CPP) $(PPFLAGS) -o $@ romlib.ld.S
+
+$(BUILD_DIR)/romlib.elf: $(OBJS) $(BUILD_DIR)/romlib.ld
+ @echo " LD $@"
+ $(Q)$(LD) -T $(BUILD_DIR)/romlib.ld -L$(LIB_DIR) $(LDFLAGS) -o $@ $(OBJS) $(LIBS)
+
+$(BUILD_DIR)/romlib.bin: $(BUILD_DIR)/romlib.elf
+ @echo " BIN $@"
+ $(Q)$(OC) -O binary $(BUILD_DIR)/romlib.elf $@
+
+$(WRAPPER_DIR)/jmpvar.s: $(BUILD_DIR)/romlib.elf
+ @echo " VAR $@"
+ $(Q)./genvar.sh -o $@ $(BUILD_DIR)/romlib.elf
+
+$(LIB_DIR)/libwrappers.a: jmptbl.i $(WRAPPER_DIR)/jmpvar.o
+ @echo " AR $@"
+ $(Q)./genwrappers.sh -b $(WRAPPER_DIR) -o $@ jmptbl.i
+
+$(BUILD_DIR)/jmptbl.s: jmptbl.i
+ @echo " TBL $@"
+ $(Q)./gentbl.sh -o $@ jmptbl.i
+
+clean:
+ @rm -f $(BUILD_DIR)/*
+
+-include $(BUILD_DIR)/romlib.d
diff --git a/lib/romlib/gentbl.sh b/lib/romlib/gentbl.sh
new file mode 100755
index 00000000..0695f6e4
--- /dev/null
+++ b/lib/romlib/gentbl.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+# Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+
+set -e
+
+output=jmptbl.s
+
+for i
+do
+ case $i in
+ -o)
+ output=$2
+ shift 2
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ echo usage: gentbl.sh [-o output] file ... >&2
+ exit 1
+ ;;
+ esac
+done
+
+tmp=`mktemp`
+trap "rm -f $tmp" EXIT INT QUIT
+
+rm -f $output
+
+awk -v OFS="\n" '
+BEGIN {print "\t.text",
+ "\t.globl\tjmptbl",
+ "jmptbl:"}
+ {sub(/[:blank:]*#.*/,"")}
+!/^$/ {print "\tb\t" $3}' "$@" > $tmp
+
+mv $tmp $output
diff --git a/lib/romlib/genvar.sh b/lib/romlib/genvar.sh
new file mode 100755
index 00000000..a3e2cdf6
--- /dev/null
+++ b/lib/romlib/genvar.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+
+set -e
+
+output=jmpvar.s
+for i
+do
+ case $i in
+ -o)
+ output=$2
+ shift 2
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ echo usage: genvar.sh [-o output] file... >&2
+ ;;
+ esac
+done
+
+tmp=`mktemp`
+trap "rm -f $tmp" EXIT INT QUIT
+
+nm -a "$@" |
+awk -v OFS="\n" '
+$3 == ".text" {print "\t.data",
+ "\t.globl\tjmptbl",
+ "\t.align\t4",
+ "jmptbl:\t.quad\t0x" $1}' > $tmp
+
+mv $tmp $output
diff --git a/lib/romlib/genwrappers.sh b/lib/romlib/genwrappers.sh
new file mode 100755
index 00000000..bcf670b9
--- /dev/null
+++ b/lib/romlib/genwrappers.sh
@@ -0,0 +1,52 @@
+#!/bin/sh
+# Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+
+set -e
+
+build=.
+out=output.a
+
+for i
+do
+ case $i in
+ -o)
+ out=$2
+ shift 2
+ ;;
+ -b)
+ build=$2
+ shift 2
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ echo usage: genwrappers.sh [-o output] [-b dir] file ... >&2
+ exit 1
+ ;;
+ esac
+done
+
+awk '{sub(/[:blank:]*#.*/,"")}
+!/^$/ {print $1*4, $2, $3}' "$@" |
+while read idx lib sym
+do
+ file=$build/${lib}_$sym
+
+ cat <<EOF > $file.s
+ .globl $sym
+$sym:
+ ldr x17, =jmptbl
+ ldr x17, [x17]
+ mov x16, $idx
+ add x16, x16, x17
+ br x16
+EOF
+
+ ${CROSS_COMPILE}as -o $file.o $file.s
+done
+
+${CROSS_COMPILE}ar -rc $out $build/*.o
diff --git a/lib/romlib/init.s b/lib/romlib/init.s
new file mode 100644
index 00000000..5cf2aca0
--- /dev/null
+++ b/lib/romlib/init.s
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+ .globl rom_lib_init
+ .extern __DATA_RAM_START__, __DATA_ROM_START__, __DATA_SIZE__
+ .extern memset, memcpy
+
+rom_lib_init:
+ cmp w0, #1
+ mov w0, #0
+ b.le 1f
+ ret
+
+1: stp x29, x30, [sp, #-16]!
+ adrp x0, __DATA_RAM_START__
+ ldr x1,= __DATA_ROM_START__
+ ldr x2, =__DATA_SIZE__
+ bl memcpy
+
+ ldr x0, =__BSS_START__
+ mov x1, #0
+ ldr x2, =__BSS_SIZE__
+ bl memset
+ ldp x29, x30, [sp], #16
+
+ mov w0, #1
+ ret
diff --git a/lib/romlib/jmptbl.i b/lib/romlib/jmptbl.i
new file mode 100644
index 00000000..338cd8a7
--- /dev/null
+++ b/lib/romlib/jmptbl.i
@@ -0,0 +1,35 @@
+#
+# Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+0 rom rom_lib_init
+1 fdt fdt_getprop_namelen
+2 fdt fdt_setprop_inplace
+3 fdt fdt_check_header
+4 fdt fdt_node_offset_by_compatible
+5 mbedtls mbedtls_asn1_get_alg
+6 mbedtls mbedtls_asn1_get_alg_null
+7 mbedtls mbedtls_asn1_get_bitstring_null
+8 mbedtls mbedtls_asn1_get_bool
+9 mbedtls mbedtls_asn1_get_int
+10 mbedtls mbedtls_asn1_get_tag
+11 mbedtls mbedtls_free
+12 mbedtls mbedtls_md
+13 mbedtls mbedtls_md_get_size
+14 mbedtls mbedtls_memory_buffer_alloc_init
+15 mbedtls mbedtls_oid_get_md_alg
+16 mbedtls mbedtls_oid_get_numeric_string
+17 mbedtls mbedtls_oid_get_pk_alg
+18 mbedtls mbedtls_oid_get_sig_alg
+19 mbedtls mbedtls_pk_free
+20 mbedtls mbedtls_pk_init
+21 mbedtls mbedtls_pk_parse_subpubkey
+22 mbedtls mbedtls_pk_verify_ext
+23 mbedtls mbedtls_platform_set_snprintf
+24 mbedtls mbedtls_x509_get_rsassa_pss_params
+25 mbedtls mbedtls_x509_get_sig_alg
+26 mbedtls mbedtls_md_info_from_type
+27 c exit
+28 c atexit
diff --git a/lib/romlib/romlib.ld.S b/lib/romlib/romlib.ld.S
new file mode 100644
index 00000000..8f0bc62b
--- /dev/null
+++ b/lib/romlib/romlib.ld.S
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+#include <xlat_tables_defs.h>
+
+MEMORY {
+ ROM (rx): ORIGIN = ROMLIB_RO_BASE, LENGTH = ROMLIB_RO_LIMIT - ROMLIB_RO_BASE
+ RAM (rwx): ORIGIN = ROMLIB_RW_BASE, LENGTH = ROMLIB_RW_END - ROMLIB_RW_BASE
+}
+
+OUTPUT_FORMAT(PLATFORM_LINKER_FORMAT)
+OUTPUT_ARCH(PLATFORM_LINKER_ARCH)
+ENTRY(jmptbl)
+
+SECTIONS
+{
+ . = ROMLIB_RO_BASE;
+ .text : {
+ *jmptbl.o(.text)
+ *(.text*)
+ *(.rodata*)
+ } >ROM
+
+ __DATA_ROM_START__ = LOADADDR(.data);
+
+ .data : {
+ __DATA_RAM_START__ = .;
+ *(.data*)
+ __DATA_RAM_END__ = .;
+ } >RAM AT>ROM
+
+ __DATA_SIZE__ = SIZEOF(.data);
+
+ .bss : {
+ __BSS_START__ = .;
+ *(.bss*)
+ __BSS_END__ = .;
+ } >RAM
+ __BSS_SIZE__ = SIZEOF(.bss);
+}
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-20 15:31:01 +0000