diff options
Diffstat (limited to 'src/crash-stack/crash-stack-libelf.c')
| -rw-r--r-- | src/crash-stack/crash-stack-libelf.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/src/crash-stack/crash-stack-libelf.c b/src/crash-stack/crash-stack-libelf.c index f4c10bc..b152bea 100644 --- a/src/crash-stack/crash-stack-libelf.c +++ b/src/crash-stack/crash-stack-libelf.c @@ -1,6 +1,16 @@ #include "crash-stack.h" #include <elfutils/libdwfl.h> #include <elfutils/version.h> +#include <string.h> + +typedef union { + uint16_t reg16; + uint32_t reg32; + uint64_t reg64; +} Register; + +static Register g_pc; +static Register g_sp; #if _ELFUTILS_PREREQ(0, 158) static int frame_callback(Dwfl_Frame *state, void *arg) @@ -19,9 +29,32 @@ static int thread_callback(Dwfl_Thread *thread, void *thread_arg) } #endif +static const char *pc_names[] = { + "pc", "rip", "eip", "ip" +}; + +static const char *sp_names[] = { + "sp", "rsp", "esp" +}; + +static bool is_in(const char *name, const char **names, int elems) +{ + int nit; + for (nit = 0; nit < elems; ++nit) { + if (strcmp(name, names[nit]) == 0) + return true; + } + return false; +} + +#define IS_IN(name,names) is_in((name), (names), sizeof(names)/sizeof(names[0])) + void *get_place_for_register_value(const char *regname, int regnum) { - return 0; + if (IS_IN(regname, pc_names)) return &g_pc; + else if (IS_IN(regname, sp_names)) return &g_sp; + + return 0; } void create_crash_stack(Dwfl *dwfl, Elf *core, pid_t pid, Mappings *mappings, Callstack *callstack) |