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| author | Josh Poimboeuf <jpoimboe@kernel.org> | 2023-04-12 21:03:16 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-04-14 16:08:28 +0200 |
| commit | 27d000d635ce48b579988e9b3240352a2a0306e0 (patch) | |
| tree | 4a081687f12e606987b721e669f4bad621ba673e /scripts | |
| parent | context_tracking: Fix KCSAN noinstr violation (diff) | |
| download | linux-27d000d635ce48b579988e9b3240352a2a0306e0.tar.xz linux-27d000d635ce48b579988e9b3240352a2a0306e0.zip | |
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')
| -rwxr-xr-x | scripts/objdump-func | 34 |
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; + } + }' |