diff options
Diffstat (limited to 'gdb/xtensa-linux-nat.c')
| -rw-r--r-- | gdb/xtensa-linux-nat.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gdb/xtensa-linux-nat.c b/gdb/xtensa-linux-nat.c index 77ad3e0..5538d5b 100644 --- a/gdb/xtensa-linux-nat.c +++ b/gdb/xtensa-linux-nat.c @@ -37,6 +37,9 @@ #include "gregset.h" #include "xtensa-tdep.h" +/* Defines ps_err_e, struct ps_prochandle. */ +#include "gdb_proc_service.h" + /* Extended register set depends on hardware configs. Keeping these definitions separately allows to introduce hardware-specific overlays. */ @@ -280,6 +283,25 @@ xtensa_linux_store_inferior_registers (struct target_ops *ops, store_xtregs (regcache, regnum); } +/* Called by libthread_db. */ + +ps_err_e +ps_get_thread_area (const struct ps_prochandle *ph, + lwpid_t lwpid, int idx, void **base) +{ + xtensa_elf_gregset_t regs; + + if (ptrace (PTRACE_GETREGS, lwpid, NULL, ®s) != 0) + return PS_ERR; + + /* IDX is the bias from the thread pointer to the beginning of the + thread descriptor. It has to be subtracted due to implementation + quirks in libthread_db. */ + *base = (void *) ((char *) regs.threadptr - idx); + + return PS_OK; +} + void _initialize_xtensa_linux_nat (void); void |