powerpc: unrel_branch_check.sh: convert grep | sed | awk to just sed

[linux-2.6-microblaze.git] / arch / powerpc / tools / unrel_branch_check.sh

diff --git a/arch/powerpc/tools/unrel_branch_check.sh b/arch/powerpc/tools/unrel_branch_check.sh
index 7e936e2..dc82289 100755 (executable)
--- a/arch/powerpc/tools/unrel_branch_check.sh
+++ b/arch/powerpc/tools/unrel_branch_check.sh
@@ -27,21 +27,31 @@ awk '$2 == "<__end_interrupts>:" { print $1 }'
 
 BRANCHES=$(
 $objdump -R -D --no-show-raw-insn --start-address="$kstart" --stop-address="$end_intr" "$vmlinux" |
-grep -e "^c[0-9a-f]*:\s*b" |
-sed -e '/\<__start_initialization_multiplatform>/d' \
-       -e '/b.\?.\?ctr/d' \
-       -e '/b.\?.\?lr/d' \
-       -e 's/\bbt.\?\s*[[:digit:]][[:digit:]]*,/beq/' \
-       -e 's/\bbf.\?\s*[[:digit:]][[:digit:]]*,/bne/' \
-       -e 's/\s0x/ /' \
-       -e 's/://' |
-awk '{ print $1 ":" $2 ":0x" $3 ":" $4 " "}'
+sed -E -n '
+# match lines that start with a kernel address
+/^c[0-9a-f]*:\s*b/ {
+       # drop a target that we do not care about
+       /\<__start_initialization_multiplatform>/d
+       # drop branches via ctr or lr
+       /\<b.?.?(ct|l)r/d
+       # cope with some differences between Clang and GNU objdumps
+       s/\<bt.?\s*[[:digit:]]+,/beq/
+       s/\<bf.?\s*[[:digit:]]+,/bne/
+       # tidy up
+       s/\s0x/ /
+       s/://
+       # format for the loop below
+       s/^(\S+)\s+(\S+)\s+(\S+)\s*(\S*).*$/\1:\2:0x\3:\4/
+       # strip out condition registers
+       s/:0xcr[0-7],/:0x/
+       p
+}'
 )
 
 for tuple in $BRANCHES; do
        from=$(echo "$tuple" | cut -d':' -f1)
        branch=$(echo "$tuple" | cut -d':' -f2)
-       to=$(echo "$tuple" | cut -d':' -f3 | sed 's/cr[0-7],//')
+       to=$(echo "$tuple" | cut -d':' -f3)
        sym=$(echo "$tuple" | cut -d':' -f4)
 
        if (( to > end_intr )); then