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-rwxr-xr-xscripts/decode_stacktrace.sh43
-rw-r--r--scripts/gendwarfksyms/gendwarfksyms.c3
-rw-r--r--scripts/gendwarfksyms/gendwarfksyms.h2
-rw-r--r--scripts/gendwarfksyms/symbols.c4
4 files changed, 25 insertions, 27 deletions
diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index 17abc4e7a985..823619c815a7 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -255,10 +255,11 @@ handle_line() {
basepath=${basepath%/init/main.c:*)}
fi
- local words
+ local words spaces
- # Tokenize
- read -a words <<<"$1"
+ # Tokenize: words and spaces to preserve the alignment
+ read -ra words <<<"$1"
+ IFS='#' read -ra spaces <<<"$(shopt -s extglob; echo "${1//+([^[:space:]])/#}")"
# Remove hex numbers. Do it ourselves until it happens in the
# kernel
@@ -270,22 +271,10 @@ handle_line() {
for i in "${!words[@]}"; do
# Remove the address
if [[ ${words[$i]} =~ \[\<([^]]+)\>\] ]]; then
- unset words[$i]
- fi
-
- # Format timestamps with tabs
- if [[ ${words[$i]} == \[ && ${words[$i+1]} == *\] ]]; then
- unset words[$i]
- words[$i+1]=$(printf "[%13s\n" "${words[$i+1]}")
+ unset words[$i] spaces[$i]
fi
done
- if [[ ${words[$last]} =~ ^[0-9a-f]+\] ]]; then
- words[$last-1]="${words[$last-1]} ${words[$last]}"
- unset words[$last]
- last=$(( $last - 1 ))
- fi
-
# Extract info after the symbol if present. E.g.:
# func_name+0x54/0x80 (P)
# ^^^
@@ -294,7 +283,15 @@ handle_line() {
local info_str=""
if [[ ${words[$last]} =~ \([A-Z]*\) ]]; then
info_str=${words[$last]}
- unset words[$last]
+ unset words[$last] spaces[$last]
+ last=$(( $last - 1 ))
+ fi
+
+ # Join module name with its build id if present, as these were
+ # split during tokenization (e.g. "[module" and "modbuildid]").
+ if [[ ${words[$last]} =~ ^[0-9a-f]+\] ]]; then
+ words[$last-1]="${words[$last-1]} ${words[$last]}"
+ unset words[$last] spaces[$last]
last=$(( $last - 1 ))
fi
@@ -311,7 +308,7 @@ handle_line() {
modbuildid=
fi
symbol=${words[$last-1]}
- unset words[$last-1]
+ unset words[$last-1] spaces[$last-1]
else
# The symbol is the last element, process it
symbol=${words[$last]}
@@ -323,12 +320,10 @@ handle_line() {
parse_symbol # modifies $symbol
# Add up the line number to the symbol
- if [[ -z ${module} ]]
- then
- echo "${words[@]}" "$symbol ${info_str}"
- else
- echo "${words[@]}" "$symbol $module ${info_str}"
- fi
+ for i in "${!words[@]}"; do
+ echo -n "${spaces[i]}${words[i]}"
+ done
+ echo "${spaces[$last]}${symbol}${module:+ ${module}}${info_str:+ ${info_str}}"
}
while read line; do
diff --git a/scripts/gendwarfksyms/gendwarfksyms.c b/scripts/gendwarfksyms/gendwarfksyms.c
index 08ae61eb327e..f5203d1640ee 100644
--- a/scripts/gendwarfksyms/gendwarfksyms.c
+++ b/scripts/gendwarfksyms/gendwarfksyms.c
@@ -138,7 +138,8 @@ int main(int argc, char **argv)
error("no input files?");
}
- symbol_read_exports(stdin);
+ if (!symbol_read_exports(stdin))
+ return 0;
if (symtypes_file) {
symfile = fopen(symtypes_file, "w");
diff --git a/scripts/gendwarfksyms/gendwarfksyms.h b/scripts/gendwarfksyms/gendwarfksyms.h
index d9c06d2cb1df..32cec8f7695a 100644
--- a/scripts/gendwarfksyms/gendwarfksyms.h
+++ b/scripts/gendwarfksyms/gendwarfksyms.h
@@ -123,7 +123,7 @@ struct symbol {
typedef void (*symbol_callback_t)(struct symbol *, void *arg);
bool is_symbol_ptr(const char *name);
-void symbol_read_exports(FILE *file);
+int symbol_read_exports(FILE *file);
void symbol_read_symtab(int fd);
struct symbol *symbol_get(const char *name);
void symbol_set_ptr(struct symbol *sym, Dwarf_Die *ptr);
diff --git a/scripts/gendwarfksyms/symbols.c b/scripts/gendwarfksyms/symbols.c
index 35ed594f0749..ecddcb5ffcdf 100644
--- a/scripts/gendwarfksyms/symbols.c
+++ b/scripts/gendwarfksyms/symbols.c
@@ -128,7 +128,7 @@ static bool is_exported(const char *name)
return for_each(name, NULL, NULL) > 0;
}
-void symbol_read_exports(FILE *file)
+int symbol_read_exports(FILE *file)
{
struct symbol *sym;
char *line = NULL;
@@ -159,6 +159,8 @@ void symbol_read_exports(FILE *file)
free(line);
debug("%d exported symbols", nsym);
+
+ return nsym;
}
static void get_symbol(struct symbol *sym, void *arg)