diff options
Diffstat (limited to 'gdb/inf-ptrace.c')
| -rw-r--r-- | gdb/inf-ptrace.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/gdb/inf-ptrace.c b/gdb/inf-ptrace.c index 07ebb9d4120..d12d1ad3214 100644 --- a/gdb/inf-ptrace.c +++ b/gdb/inf-ptrace.c @@ -626,8 +626,14 @@ inf_ptrace_fetch_register (int regnum) PTRACE_TYPE_RET *buf; int pid, i; + if (CANNOT_FETCH_REGISTER (regnum)) + { + regcache_raw_supply (current_regcache, regnum, NULL); + return; + } + /* Cater for systems like GNU/Linux, that implement threads as - seperate processes. */ + separate processes. */ pid = ptid_get_lwp (inferior_ptid); if (pid == 0) pid = ptid_get_pid (inferior_ptid); @@ -639,7 +645,7 @@ inf_ptrace_fetch_register (int regnum) gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0); buf = alloca (size); - /* Read the register contents from the inferior a chuck at the time. */ + /* Read the register contents from the inferior a chunk at a time. */ for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++) { errno = 0; @@ -676,8 +682,11 @@ inf_ptrace_store_register (int regnum) PTRACE_TYPE_RET *buf; int pid, i; + if (CANNOT_STORE_REGISTER (regnum)) + return; + /* Cater for systems like GNU/Linux, that implement threads as - seperate processes. */ + separate processes. */ pid = ptid_get_lwp (inferior_ptid); if (pid == 0) pid = ptid_get_pid (inferior_ptid); @@ -689,7 +698,7 @@ inf_ptrace_store_register (int regnum) gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0); buf = alloca (size); - /* Write the register contents into the inferior a chunk at the time. */ + /* Write the register contents into the inferior a chunk at a time. */ regcache_raw_collect (current_regcache, regnum, buf); for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++) { |