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authorJosh Poimboeuf <jpoimboe@kernel.org>2023-04-12 12:03:16 -0700
committerPeter Zijlstra <peterz@infradead.org>2023-04-14 16:08:28 +0200
commit27d000d635ce48b579988e9b3240352a2a0306e0 (patch)
tree4a081687f12e606987b721e669f4bad621ba673e /scripts/objdump-func
parente8deb00c0c4808654d1bf96a8f79cf1deb59b631 (diff)
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scripts/objdump-func: Support multiple functions
Allow specifying multiple functions on the cmdline. Note this removes the secret EXTRA_ARGS feature. While at it, spread out the awk to make it more readable. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/0bf5f4f5978660985037b24c6db49b114374eb4d.1681325924.git.jpoimboe@kernel.org
Diffstat (limited to 'scripts/objdump-func')
-rwxr-xr-xscripts/objdump-func34
1 files changed, 25 insertions, 9 deletions
diff --git a/scripts/objdump-func b/scripts/objdump-func
index 4eb463dd9f52..7b15b873d0e2 100755
--- a/scripts/objdump-func
+++ b/scripts/objdump-func
@@ -3,7 +3,7 @@
#
# Disassemble a single function.
#
-# usage: objdump-func <file> <func>
+# usage: objdump-func <file> <func> [<func> ...]
set -o errexit
set -o nounset
@@ -13,17 +13,33 @@ OBJDUMP="${CROSS_COMPILE:-}objdump"
command -v gawk >/dev/null 2>&1 || die "gawk isn't installed"
usage() {
- echo "usage: objdump-func <file> <func>" >&2
+ echo "usage: objdump-func <file> <func> [<func> ...]" >&2
exit 1
}
[[ $# -lt 2 ]] && usage
OBJ=$1; shift
-FUNC=$1; shift
-
-# Secret feature to allow adding extra objdump args at the end
-EXTRA_ARGS=$@
-
-# Note this also matches compiler-added suffixes like ".cold", etc
-${OBJDUMP} -wdr $EXTRA_ARGS $OBJ | gawk -M -v f=$FUNC '/^$/ { P=0; } $0 ~ "<" f "(\\..*)?>:" { P=1; O=strtonum("0x" $1); } { if (P) { o=strtonum("0x" $1); printf("%04x ", o-O); print $0; } }'
+FUNCS=("$@")
+
+${OBJDUMP} -wdr $OBJ | gawk -M -v _funcs="${FUNCS[*]}" '
+ BEGIN { split(_funcs, funcs); }
+ /^$/ { func_match=0; }
+ /<.*>:/ {
+ f = gensub(/.*<(.*)>:/, "\\1", 1);
+ for (i in funcs) {
+ # match compiler-added suffixes like ".cold", etc
+ if (f ~ "^" funcs[i] "(\\..*)?") {
+ func_match = 1;
+ base = strtonum("0x" $1);
+ break;
+ }
+ }
+ }
+ {
+ if (func_match) {
+ addr = strtonum("0x" $1);
+ printf("%04x ", addr - base);
+ print;
+ }
+ }'