diff options
Diffstat (limited to 'libcorkscrew/test.cpp')
-rw-r--r-- | libcorkscrew/test.cpp | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/libcorkscrew/test.cpp b/libcorkscrew/test.cpp deleted file mode 100644 index 22dfa7d..0000000 --- a/libcorkscrew/test.cpp +++ /dev/null @@ -1,76 +0,0 @@ -#include <corkscrew/backtrace.h> -#include <corkscrew/symbol_table.h> -#include <stdio.h> -#include <stdlib.h> - -int do_backtrace(float /* just to test demangling */) { - const size_t MAX_DEPTH = 32; - backtrace_frame_t* frames = (backtrace_frame_t*) malloc(sizeof(backtrace_frame_t) * MAX_DEPTH); - ssize_t frame_count = unwind_backtrace(frames, 0, MAX_DEPTH); - fprintf(stderr, "frame_count=%d\n", (int) frame_count); - if (frame_count <= 0) { - return frame_count; - } - - backtrace_symbol_t* backtrace_symbols = (backtrace_symbol_t*) malloc(sizeof(backtrace_symbol_t) * frame_count); - get_backtrace_symbols(frames, frame_count, backtrace_symbols); - - for (size_t i = 0; i < (size_t) frame_count; ++i) { - char line[MAX_BACKTRACE_LINE_LENGTH]; - format_backtrace_line(i, &frames[i], &backtrace_symbols[i], - line, MAX_BACKTRACE_LINE_LENGTH); - if (backtrace_symbols[i].symbol_name != NULL) { - // get_backtrace_symbols found the symbol's name with dladdr(3). - fprintf(stderr, " %s\n", line); - } else { - // We don't have a symbol. Maybe this is a static symbol, and - // we can look it up? - symbol_table_t* symbols = NULL; - if (backtrace_symbols[i].map_name != NULL) { - symbols = load_symbol_table(backtrace_symbols[i].map_name); - } - const symbol_t* symbol = NULL; - if (symbols != NULL) { - symbol = find_symbol(symbols, frames[i].absolute_pc); - } - if (symbol != NULL) { - int offset = frames[i].absolute_pc - symbol->start; - fprintf(stderr, " %s (%s%+d)\n", line, symbol->name, offset); - } else { - fprintf(stderr, " %s (\?\?\?)\n", line); - } - free_symbol_table(symbols); - } - } - - free_backtrace_symbols(backtrace_symbols, frame_count); - free(backtrace_symbols); - free(frames); - return frame_count; -} - -struct C { - int g(int i); -}; - -__attribute__ ((noinline)) int C::g(int i) { - if (i == 0) { - return do_backtrace(0.1); - } - return g(i - 1); -} - -extern "C" __attribute__ ((noinline)) int f() { - C c; - return c.g(5); -} - -int main() { - flush_my_map_info_list(); - f(); - - flush_my_map_info_list(); - f(); - - return 0; -} |