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| author | Schspa Shi <schspa@gmail.com> | 2022-04-29 14:37:57 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-23 08:55:13 +0100 |
| commit | 1ce4ac55d96ebd9a295575e2b3e413d0c7f6e6aa (patch) | |
| tree | 653b6bddeaa90528ae36a80f6306afdf16d58f83 | |
| parent | 2655757a3f101dba744087033a5c7dbab26cae48 (diff) | |
| download | linux-1ce4ac55d96ebd9a295575e2b3e413d0c7f6e6aa.tar.gz linux-1ce4ac55d96ebd9a295575e2b3e413d0c7f6e6aa.tar.bz2 linux-1ce4ac55d96ebd9a295575e2b3e413d0c7f6e6aa.zip | |
scripts/decode_stacktrace.sh: support old bash version
[ Upstream commit 3af8acf6aff2a98731522b52927429760f0b8006 ]
Old bash version don't support associative array variables. Avoid to use
associative array variables to avoid error.
Without this, old bash version will report error as fellowing
[ 15.954042] Kernel panic - not syncing: sysrq triggered crash
[ 15.955252] CPU: 1 PID: 167 Comm: sh Not tainted 5.18.0-rc1-00208-gb7d075db2fd5 #4
[ 15.956472] Hardware name: Hobot J5 Virtual development board (DT)
[ 15.957856] Call trace:
./scripts/decode_stacktrace.sh: line 128: ,dump_backtrace: syntax error: operand expected (error token is ",dump_backtrace")
Link: https://lkml.kernel.org/r/20220409180331.24047-1-schspa@gmail.com
Signed-off-by: Schspa Shi <schspa@gmail.com>
Cc: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Stable-dep-of: efbd63983533 ("scripts/decode_stacktrace.sh: optionally use LLVM utilities")
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rwxr-xr-x | scripts/decode_stacktrace.sh | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh index 5fbad61fe490..7075e26ab2c4 100755 --- a/scripts/decode_stacktrace.sh +++ b/scripts/decode_stacktrace.sh @@ -45,8 +45,13 @@ else fi fi -declare -A cache -declare -A modcache +declare aarray_support=true +declare -A cache 2>/dev/null +if [[ $? != 0 ]]; then + aarray_support=false +else + declare -A modcache +fi find_module() { if [[ -n $debuginfod ]] ; then @@ -97,7 +102,7 @@ parse_symbol() { if [[ $module == "" ]] ; then local objfile=$vmlinux - elif [[ "${modcache[$module]+isset}" == "isset" ]]; then + elif [[ $aarray_support == true && "${modcache[$module]+isset}" == "isset" ]]; then local objfile=${modcache[$module]} else local objfile=$(find_module) @@ -105,7 +110,9 @@ parse_symbol() { echo "WARNING! Modules path isn't set, but is needed to parse this symbol" >&2 return fi - modcache[$module]=$objfile + if [[ $aarray_support == true ]]; then + modcache[$module]=$objfile + fi fi # Remove the englobing parenthesis @@ -125,7 +132,7 @@ parse_symbol() { # Use 'nm vmlinux' to figure out the base address of said symbol. # It's actually faster to call it every time than to load it # all into bash. - if [[ "${cache[$module,$name]+isset}" == "isset" ]]; then + if [[ $aarray_support == true && "${cache[$module,$name]+isset}" == "isset" ]]; then local base_addr=${cache[$module,$name]} else local base_addr=$(nm "$objfile" 2>/dev/null | awk '$3 == "'$name'" && ($2 == "t" || $2 == "T") {print $1; exit}') @@ -133,7 +140,9 @@ parse_symbol() { # address not found return fi - cache[$module,$name]="$base_addr" + if [[ $aarray_support == true ]]; then + cache[$module,$name]="$base_addr" + fi fi # Let's start doing the math to get the exact address into the # symbol. First, strip out the symbol total length. @@ -149,11 +158,13 @@ parse_symbol() { # Pass it to addr2line to get filename and line number # Could get more than one result - if [[ "${cache[$module,$address]+isset}" == "isset" ]]; then + if [[ $aarray_support == true && "${cache[$module,$address]+isset}" == "isset" ]]; then local code=${cache[$module,$address]} else local code=$(${CROSS_COMPILE}addr2line -i -e "$objfile" "$address" 2>/dev/null) - cache[$module,$address]=$code + if [[ $aarray_support == true ]]; then + cache[$module,$address]=$code + fi fi # addr2line doesn't return a proper error code if it fails, so |