#!/bin/awk -f# SPDX-License-Identifier: GPL-2.0# Usage: objdump -d a.out | awk -f objdump_reformat.awk | ./insn_decoder_test# Reformats the disassembly as follows:# - Removes all lines except the disassembled instructions.# - For instructions that exceed 1 line (7 bytes), crams all the hex bytes# into a single line.# - Remove bad(or prefix only) instructions BEGIN { prev_addr = "" prev_hex = "" prev_mnemonic = "" bad_expr = "(\\(bad\\)|<unknown>|^rex|^.byte|^rep(z|nz)$|^lock$|^es$|^cs$|^ss$|^ds$|^fs$|^gs$|^data(16|32)$|^addr(16|32|64))" fwait_expr = "^9b[ \t]*fwait" fwait_str="9b\tfwait"} /^ *[0-9a-f]+ <[^>]*>:/ { # Symbol entry printf("%s%s\n", $2, $1)} /^ *[0-9a-f]+:/ { if (split($0, field, /: |\t/) < 3) { # This is a continuation of the same insn. prev_hex = prev_hex field[2] } else { # Skip bad instructions if (match(prev_mnemonic, bad_expr)) prev_addr = "" # Split fwait from other f* instructions if (match(prev_hex, fwait_expr) && prev_mnemonic != "fwait") { printf "%s\t%s\n", prev_addr, fwait_str sub(fwait_expr, "", prev_hex) } if (prev_addr != "") printf "%s\t%s\t%s\n", prev_addr, prev_hex, prev_mnemonic prev_addr = field[1] prev_hex = field[2] prev_mnemonic = field[3] }} END { if (prev_addr != "") printf "%s\t%s\t%s\n", prev_addr, prev_hex, prev_mnemonic}
#!/bin/awk -f
# SPDX-License-Identifier: GPL-2.0
# Usage: objdump -d a.out | awk -f objdump_reformat.awk | ./insn_decoder_test
# Reformats the disassembly as follows:
# - Removes all lines except the disassembled instructions.
# - For instructions that exceed 1 line (7 bytes), crams all the hex bytes
# into a single line.
# - Remove bad(or prefix only) instructions
BEGIN {
prev_addr = ""
prev_hex = ""
prev_mnemonic = ""
bad_expr = "(\\(bad\\)|<unknown>|^rex|^.byte|^rep(z|nz)$|^lock$|^es$|^cs$|^ss$|^ds$|^fs$|^gs$|^data(16|32)$|^addr(16|32|64))"
fwait_expr = "^9b[ \t]*fwait"
fwait_str="9b\tfwait"
}
/^ *[0-9a-f]+ <[^>]*>:/ {
# Symbol entry
printf("%s%s\n", $2, $1)
}
/^ *[0-9a-f]+:/ {
if (split($0, field, /: |\t/) < 3) {
# This is a continuation of the same insn.
prev_hex = prev_hex field[2]
} else {
# Skip bad instructions
if (match(prev_mnemonic, bad_expr))
prev_addr = ""
# Split fwait from other f* instructions
if (match(prev_hex, fwait_expr) && prev_mnemonic != "fwait") {
printf "%s\t%s\n", prev_addr, fwait_str
sub(fwait_expr, "", prev_hex)
}
if (prev_addr != "")
printf "%s\t%s\t%s\n", prev_addr, prev_hex, prev_mnemonic
prev_addr = field[1]
prev_hex = field[2]
prev_mnemonic = field[3]
}
}
END {
if (prev_addr != "")
printf "%s\t%s\t%s\n", prev_addr, prev_hex, prev_mnemonic
}