ece5ef6079
* spu.h (R_SPU_PPU32, R_SPU_PPU64): Define. bfd/ * reloc.c (BFD_RELOC_SPU_PPU32, BFD_RELOC_SPU_PPU64): Define. * elf-bfd.h (struct elf_backend_data): Change return type of elf_backend_relocate_section to int. * elf32-spu.c (elf_howto_table): Add howtos for R_SPU_PPU32 and R_SPU_PPU64. (spu_elf_bfd_to_reloc_type): Convert new relocs. (spu_elf_count_relocs): New function. (elf_backend_count_relocs): Define. (spu_elf_relocate_section): Arrange to emit R_SPU_PPU32 and R_SPU_PPU64 relocs. * elflink.c (elf_link_input_bfd): Emit relocs if relocate_section returns 2. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. gas/ * config/tc-spu.c (md_pseudo_table): Add int, long, quad. Call spu_cons for word. (md_assemble): Tidy use of insn.flag. (get_imm): Likewise. Handle uppercase input too. (spu_cons): New function. * config/tc-spu.h (tc_fix_adjustable): Don't adjust SPU_PPU relocs. (TC_FORCE_RELOCATION): Don't resolve them either. binutils/ * embedspu.sh (find_prog): Prefer prog in same dir as embedspu over one found on the users path. (main): Generate .reloc for each R_SPU_PPU* reloc.
251 lines
7.8 KiB
Bash
251 lines
7.8 KiB
Bash
#! /bin/sh
|
|
# Embed an SPU ELF executable into a PowerPC object file.
|
|
#
|
|
# Copyright 2006, 2007 Free Software Foundation, Inc.
|
|
#
|
|
# This file is part of GNU Binutils.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
|
|
# 02110-1301, USA.
|
|
|
|
usage ()
|
|
{
|
|
echo "Usage: embedspu [flags] symbol_name input_filename output_filename"
|
|
echo
|
|
echo " input_filename: SPU ELF executable to be embedded"
|
|
echo " output_filename: Resulting PowerPC object file"
|
|
echo " symbol_name: Name of program handle struct to be defined"
|
|
echo " flags: GCC flags defining PowerPC object file format"
|
|
echo " (e.g. -m32 or -m64)"
|
|
exit 1
|
|
}
|
|
|
|
program_transform_name=
|
|
mydir=`dirname "$0"`
|
|
|
|
find_prog ()
|
|
{
|
|
prog=`echo $1 | sed "$program_transform_name"`
|
|
prog="$mydir/$prog"
|
|
test -x "$prog" && return 0
|
|
prog="$mydir/$1"
|
|
test -x "$prog" && return 0
|
|
prog=`echo $1 | sed "$program_transform_name"`
|
|
which $prog > /dev/null 2> /dev/null && return 0
|
|
return 1
|
|
}
|
|
|
|
SYMBOL=
|
|
INFILE=
|
|
OUTFILE=
|
|
FLAGS=
|
|
|
|
parse_args ()
|
|
{
|
|
while test -n "$1"; do
|
|
case "$1" in
|
|
-*) FLAGS="${FLAGS} $1" ;;
|
|
*) if test -z "$SYMBOL"; then
|
|
SYMBOL="$1"
|
|
elif test -z "$INFILE"; then
|
|
INFILE="$1"
|
|
elif test -z "$OUTFILE"; then
|
|
OUTFILE="$1"
|
|
else
|
|
echo "Too many arguments!"
|
|
usage
|
|
fi ;;
|
|
esac
|
|
shift
|
|
done
|
|
if test -z "$OUTFILE"; then
|
|
usage
|
|
fi
|
|
if test ! -r "$INFILE"; then
|
|
echo "${INFILE}: File not found"
|
|
usage
|
|
fi
|
|
}
|
|
|
|
main ()
|
|
{
|
|
parse_args "$@"
|
|
|
|
# Find a powerpc gcc. Support running from a combined tree build.
|
|
if test -x "$mydir/../gcc/xgcc"; then
|
|
CC="$mydir/../gcc/xgcc -B$mydir/../gcc/"
|
|
else
|
|
find_prog gcc
|
|
if test $? -ne 0; then
|
|
echo "Cannot find $prog"
|
|
exit 1
|
|
fi
|
|
CC="$prog"
|
|
fi
|
|
|
|
# Find readelf. Any old readelf should do.
|
|
find_prog readelf
|
|
if test $? -ne 0; then
|
|
if which readelf > /dev/null 2> /dev/null; then
|
|
prog=readelf
|
|
else
|
|
echo "Cannot find $prog"
|
|
exit 1
|
|
fi
|
|
fi
|
|
READELF="$prog"
|
|
|
|
# Sanity check the input file
|
|
if ! ${READELF} -h ${INFILE} | grep 'Class:.*ELF32' >/dev/null 2>/dev/null \
|
|
|| ! ${READELF} -h ${INFILE} | grep 'Type:.*EXEC' >/dev/null 2>/dev/null \
|
|
|| ! ${READELF} -h ${INFILE} | egrep 'Machine:.*(SPU|17)' >/dev/null 2>/dev/null
|
|
then
|
|
echo "${INFILE}: Does not appear to be an SPU executable"
|
|
exit 1
|
|
fi
|
|
|
|
toe=`${READELF} -S ${INFILE} | sed -n -e 's, *\[ *\([0-9]*\)\] *\.toe *[PROGN]*BITS *\([0-9a-f]*\).*,\1 \2,p'`
|
|
toe_addr=`echo $toe | sed -n -e 's,.* ,,p'`
|
|
toe=`echo $toe | sed -n -e 's, .*,,p'`
|
|
# For loaded sections, pick off section number, address, and file offset
|
|
sections=`${READELF} -S ${INFILE} | sed -n -e 's, *\[ *\([0-9]*\)\] *[^ ]* *PROGBITS *\([0-9a-f]*\) *\([0-9a-f]*\).*,\1 \2 \3,p'`
|
|
sections=`echo ${sections}`
|
|
# For relocation sections, pick off file offset and info (points to
|
|
# section where relocs apply)
|
|
relas=`${READELF} -S ${INFILE} | sed -n -e 's, *\[ *[0-9]*\] *[^ ]* *RELA *[0-9a-f]* *0*\([0-9a-f][0-9a-f]*\) .*\([0-9a-f][0-9a-f]*\) *[0-9a-f][0-9a-f]*$,\1 \2,p'`
|
|
relas=`echo ${relas}`
|
|
|
|
# Build embedded SPU image.
|
|
# 1. The whole SPU ELF file is written to .rodata.speelf
|
|
# 2. Symbols starting with the string "_EAR_" in the SPU ELF image are
|
|
# special. They allow an SPU program to access corresponding symbols
|
|
# (ie. minus the _EAR_ prefix), in the PowerPC program. _EAR_ without
|
|
# a suffix is used to refer to the addrress of the SPU image in
|
|
# PowerPC address space. _EAR_* symbols must all be defined in .toe
|
|
# at 16 byte intervals, or they must be defined in other non-bss
|
|
# sections.
|
|
# Find all _EAR_ symbols in .toe using readelf, sort by address, and
|
|
# write the address of the corresponding PowerPC symbol in a table
|
|
# built in .data.spetoe. For _EAE_ symbols not in .toe, create
|
|
# .reloc commands to relocate their location directly.
|
|
# 3. Look for R_SPU_PPU32 and R_SPU_PPU64 relocations in the SPU ELF image
|
|
# and create .reloc commands for them.
|
|
# 4. Write a struct spe_program_handle to .data.
|
|
# 5. Write a table of _SPUEAR_ symbols.
|
|
${CC} ${FLAGS} -x assembler-with-cpp -nostartfiles -nostdlib \
|
|
-Wa,-mbig -Wl,-r -Wl,-x -o ${OUTFILE} - <<EOF
|
|
.section .rodata.speelf,"a",@progbits
|
|
.p2align 7
|
|
__speelf__:
|
|
.incbin "${INFILE}"
|
|
|
|
.section .data.spetoe,"aw",@progbits
|
|
.p2align 7
|
|
__spetoe__:
|
|
`${READELF} -s -W ${INFILE} | grep ' _EAR_' | sort -k 2 | awk \
|
|
'BEGIN { \
|
|
addr = strtonum ("0x" "'${toe_addr-0}'"); \
|
|
split ("'"${sections}"'", s, " "); \
|
|
for (i = 1; i in s; i += 3) { \
|
|
sec_off[s[i]] = strtonum ("0x" s[i+2]) - strtonum ("0x" s[i+1]); \
|
|
} \
|
|
} \
|
|
$7 == "'${toe}'" && strtonum ("0x" $2) != addr { \
|
|
print "#error Symbol " $8 " not in 16 byte element toe array!"; \
|
|
} \
|
|
$7 == "'${toe}'" { \
|
|
addr = addr + 16; \
|
|
} \
|
|
$7 == "'${toe}'" { \
|
|
print "#ifdef _LP64"; \
|
|
print " .quad " ($8 == "_EAR_" ? "__speelf__" : substr($8, 6)) ", 0"; \
|
|
print "#else"; \
|
|
print " .int 0, " ($8 == "_EAR_" ? "__speelf__" : substr($8, 6)) ", 0, 0"; \
|
|
print "#endif"; \
|
|
} \
|
|
$7 != "'${toe}'" && $7 in sec_off { \
|
|
print "#ifdef _LP64"; \
|
|
print " .reloc __speelf__+" strtonum ("0x" $2) + sec_off[$7] ", R_PPC64_ADDR64, " ($8 == "_EAR_" ? "__speelf__" : substr($8, 6)); \
|
|
print "#else"; \
|
|
print " .reloc __speelf__+" strtonum ("0x" $2) + sec_off[$7] + 4 ", R_PPC_ADDR32, " ($8 == "_EAR_" ? "__speelf__" : substr($8, 6)); \
|
|
print "#endif"; \
|
|
} \
|
|
$7 != "'${toe}'" && ! $7 in sec_off { \
|
|
print "#error Section not found for " $8; \
|
|
} \
|
|
'`
|
|
`test -z "${relas}" || ${READELF} -r -W ${INFILE} | awk \
|
|
'BEGIN { \
|
|
split ("'"${sections}"'", s, " "); \
|
|
for (i = 1; i in s; i += 3) { \
|
|
sec_off[s[i]] = strtonum ("0x" s[i+2]) - strtonum ("0x" s[i+1]); \
|
|
} \
|
|
split ("'"${relas}"'", s, " "); \
|
|
for (i = 1; i in s; i += 2) { \
|
|
rela[s[i]] = strtonum (s[i+1]); \
|
|
} \
|
|
} \
|
|
/^Relocation section/ { \
|
|
sec = substr($6, 3); \
|
|
} \
|
|
$3 ~ /R_SPU_PPU/ { \
|
|
print "#ifdef _LP64"; \
|
|
print " .reloc __speelf__+" strtonum ("0x" $1) + sec_off[rela[sec]] ", R_PPC64_ADDR" substr($3, 10) ", " $5 "+0x" $7; \
|
|
print "#else"; \
|
|
print " .reloc __speelf__+" strtonum ("0x" $1) + sec_off[rela[sec]] + (substr($3, 10) == "64" ? 4 : 0)", R_PPC_ADDR32, " $5 "+0x" $7; \
|
|
print "#endif"; \
|
|
} \
|
|
$3 ~ /unrecognized:/ { \
|
|
print "#ifdef _LP64"; \
|
|
print " .reloc __speelf__+" strtonum ("0x" $1) + sec_off[rela[sec]] ", R_PPC64_ADDR" ($4 == "f" ? "64" : "32") ", " $6 "+0x" $8; \
|
|
print "#else"; \
|
|
print " .reloc __speelf__+" strtonum ("0x" $1) + sec_off[rela[sec]] + ($4 == "f" ? 4 : 0)", R_PPC_ADDR32, " $6 "+0x" $8; \
|
|
print "#endif"; \
|
|
} \
|
|
'`
|
|
|
|
.section .data,"aw",@progbits
|
|
.globl ${SYMBOL}
|
|
.type ${SYMBOL}, @object
|
|
# fill in a struct spe_program_handle
|
|
#ifdef _LP64
|
|
.p2align 3
|
|
${SYMBOL}:
|
|
.int 24
|
|
.int 0
|
|
.quad __speelf__
|
|
.quad __spetoe__
|
|
#else
|
|
.p2align 2
|
|
${SYMBOL}:
|
|
.int 12
|
|
.int __speelf__
|
|
.int __spetoe__
|
|
#endif
|
|
.size ${SYMBOL}, . - ${SYMBOL}
|
|
|
|
`${READELF} -s -W ${INFILE} | grep ' _SPUEAR_' | sort -k 2 | awk \
|
|
'{ \
|
|
print " .globl '${SYMBOL}'_" substr($8, 9); \
|
|
print " .type '${SYMBOL}'_" substr($8, 9) ", @object"; \
|
|
print " .size '${SYMBOL}'_" substr($8, 9) ", 4"; \
|
|
print "'${SYMBOL}'_" substr($8, 9) ":"; \
|
|
print " .int " $2; \
|
|
} \
|
|
'`
|
|
EOF
|
|
}
|
|
|
|
main "$@"
|