romlib: Add platform specific jump table list
This patch allows platforms to define their own jump table list for library at ROM. The file has the list of functions to be used from library at ROM. It can also include other list files. Change-Id: I721c35d7dad3dcadbb3a7f3277bfd5d3e1f6e00a Signed-off-by: Sathees Balya <sathees.balya@arm.com>
This commit is contained in:
Sathees Balya
parent
e01065472a
commit
8b9a0de440
2
Makefile
2
Makefile
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@ -880,7 +880,7 @@ ${SPTOOL}:
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.PHONY: libraries
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romlib.bin: libraries
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${Q}${MAKE} BUILD_PLAT=${BUILD_PLAT} INCLUDES='${INCLUDES}' DEFINES='${DEFINES}' --no-print-directory -C ${ROMLIBPATH} all
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${Q}${MAKE} PLAT_DIR=${PLAT_DIR} BUILD_PLAT=${BUILD_PLAT} INCLUDES='${INCLUDES}' DEFINES='${DEFINES}' --no-print-directory -C ${ROMLIBPATH} all
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cscope:
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@echo " CSCOPE"
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@ -60,11 +60,16 @@ $(WRAPPER_DIR)/jmpvar.s: $(BUILD_DIR)/romlib.elf
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$(LIB_DIR)/libwrappers.a: jmptbl.i $(WRAPPER_DIR)/jmpvar.o
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@echo " AR $@"
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$(Q)./genwrappers.sh -b $(WRAPPER_DIR) -o $@ jmptbl.i
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$(Q)./genwrappers.sh -b $(WRAPPER_DIR) -o $@ $(BUILD_DIR)/jmptbl.i
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$(BUILD_DIR)/jmptbl.s: jmptbl.i
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@echo " TBL $@"
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$(Q)./gentbl.sh -o $@ jmptbl.i
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if [ -e "../../$(PLAT_DIR)/jmptbl.i" ] ; \
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then \
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$(Q)./gentbl.sh -o $@ -b $(BUILD_DIR) ../../$(PLAT_DIR)/jmptbl.i; \
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else \
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@echo "USE_ROMLIB=1 requires jump table list file: jmptbl.i in platform directory"; \
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fi
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clean:
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@rm -f $(BUILD_DIR)/*
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@ -6,6 +6,7 @@
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set -e
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output=jmptbl.s
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build=.
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for i
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do
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@ -14,27 +15,45 @@ do
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output=$2
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shift 2
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;;
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-b)
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build=$2
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shift 2
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;;
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--)
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shift
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break
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;;
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-*)
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echo usage: gentbl.sh [-o output] file ... >&2
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echo usage: gentbl.sh [-o output] [-b dir] file ... >&2
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exit 1
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;;
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esac
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done
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tmp=`mktemp`
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trap "rm -f $tmp" EXIT INT QUIT
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trap "rm -f $$.tmp" EXIT INT QUIT
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rm -f $output
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# Pre-process include files
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awk '!/^$/ && !/[:blank:]*#.*/{
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if (NF == 2 && $1 == "include") {
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while ((getline line < $2) > 0)
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if (line !~ /^$/ && line !~ /[:blank:]*#.*/)
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print line
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close($2)
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} else
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print
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}' "$@" |
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awk -v OFS="\t" '
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BEGIN{print "#index\tlib\tfunction\t[patch]"}
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{print NR-1, $0}' | tee $build/jmptbl.i |
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awk -v OFS="\n" '
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BEGIN {print "\t.text",
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"\t.globl\tjmptbl",
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"jmptbl:"}
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{sub(/[:blank:]*#.*/,"")}
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!/^$/ {print "\tb\t" $3}' "$@" > $tmp
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mv $tmp $output
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!/^$/ {if ($3 == "reserved")
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print "\t.word\t0x0"
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else
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print "\tb\t" $3}' > $$.tmp &&
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mv $$.tmp $output
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@ -31,7 +31,7 @@ do
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done
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awk '{sub(/[:blank:]*#.*/,"")}
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!/^$/ && !/\\tpatch$/ {print $1*4, $2, $3}' "$@" |
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!/^$/ && !/\\tpatch$/ !/\\treserved$/ {print $1*4, $2, $3}' "$@" |
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while read idx lib sym
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do
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file=$build/${lib}_$sym
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@ -4,37 +4,40 @@
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Format:
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# index lib function [patch]
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# lib function [patch]
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# Add "patch" at the end of the line to patch a function. For example:
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# 14 mbedtls mbedtls_memory_buffer_alloc_init patch
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# mbedtls mbedtls_memory_buffer_alloc_init patch
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# Holes can be introduced in the table by using a special keyword "reserved".
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# Example:
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# reserved reserved
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# The jump table will contain an invalid instruction instead of branch
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0 rom rom_lib_init
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1 fdt fdt_getprop_namelen
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2 fdt fdt_setprop_inplace
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3 fdt fdt_check_header
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4 fdt fdt_node_offset_by_compatible
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5 mbedtls mbedtls_asn1_get_alg
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6 mbedtls mbedtls_asn1_get_alg_null
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7 mbedtls mbedtls_asn1_get_bitstring_null
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8 mbedtls mbedtls_asn1_get_bool
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9 mbedtls mbedtls_asn1_get_int
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10 mbedtls mbedtls_asn1_get_tag
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11 mbedtls mbedtls_free
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12 mbedtls mbedtls_md
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13 mbedtls mbedtls_md_get_size
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14 mbedtls mbedtls_memory_buffer_alloc_init
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15 mbedtls mbedtls_oid_get_md_alg
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16 mbedtls mbedtls_oid_get_numeric_string
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17 mbedtls mbedtls_oid_get_pk_alg
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18 mbedtls mbedtls_oid_get_sig_alg
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19 mbedtls mbedtls_pk_free
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20 mbedtls mbedtls_pk_init
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21 mbedtls mbedtls_pk_parse_subpubkey
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22 mbedtls mbedtls_pk_verify_ext
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23 mbedtls mbedtls_platform_set_calloc_free
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24 mbedtls mbedtls_platform_set_snprintf
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25 mbedtls mbedtls_x509_get_rsassa_pss_params
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26 mbedtls mbedtls_x509_get_sig_alg
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27 mbedtls mbedtls_md_info_from_type
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28 c exit
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29 c atexit
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rom rom_lib_init
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fdt fdt_getprop_namelen
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fdt fdt_setprop_inplace
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fdt fdt_check_header
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fdt fdt_node_offset_by_compatible
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mbedtls mbedtls_asn1_get_alg
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mbedtls mbedtls_asn1_get_alg_null
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mbedtls mbedtls_asn1_get_bitstring_null
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mbedtls mbedtls_asn1_get_bool
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mbedtls mbedtls_asn1_get_int
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mbedtls mbedtls_asn1_get_tag
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mbedtls mbedtls_free
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mbedtls mbedtls_md
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mbedtls mbedtls_md_get_size
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mbedtls mbedtls_memory_buffer_alloc_init
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mbedtls mbedtls_oid_get_md_alg
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mbedtls mbedtls_oid_get_numeric_string
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mbedtls mbedtls_oid_get_pk_alg
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mbedtls mbedtls_oid_get_sig_alg
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mbedtls mbedtls_pk_free
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mbedtls mbedtls_pk_init
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mbedtls mbedtls_pk_parse_subpubkey
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mbedtls mbedtls_pk_verify_ext
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mbedtls mbedtls_platform_set_snprintf
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mbedtls mbedtls_x509_get_rsassa_pss_params
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mbedtls mbedtls_x509_get_sig_alg
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mbedtls mbedtls_md_info_from_type
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c exit
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c atexit
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@ -0,0 +1,17 @@
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#
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# Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Platform specific romlib functions can be added or included here.
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# The index in the output file will be generated cumulatively in the same
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# order as it is given in this file.
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# Output file can be found at: $BUILD_DIR/jmptbl.i
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#
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# Format:
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# lib function [patch]
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# Example:
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# rom rom_lib_init
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# fdt fdt_getprop_namelen patch
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include ../../lib/romlib/jmptbl.i
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@ -0,0 +1,17 @@
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#
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# Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Platform specific romlib functions can be added or included here.
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# The index in the output file will be generated cumulatively in the same
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# order as it is given in this file.
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# Output file can be found at: $BUILD_DIR/jmptbl.i
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#
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# Format:
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# lib function [patch]
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# Example:
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# rom rom_lib_init
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# fdt fdt_getprop_namelen patch
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include ../../lib/romlib/jmptbl.i
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