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POWERPC: if GETREGS fails with EIO, don't try it again

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Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Denys Vlasenko 2013-06-28 14:41:30 +02:00
parent 7f5a132c81
commit 7eb893236c
1 changed files with 7 additions and 1 deletions
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8
syscall.c
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@ -1070,9 +1070,15 @@ get_regs(pid_t pid)
# elif defined(SPARC) || defined(SPARC64)
get_regs_error = ptrace(PTRACE_GETREGS, pid, (char *)&sparc_regs, 0);
# elif defined(POWERPC)
static bool old_kernel = 0;
if (old_kernel)
goto old;
get_regs_error = ptrace(PTRACE_GETREGS, pid, NULL, (long) &ppc_regs);
if (get_regs_error && errno == EIO)
if (get_regs_error && errno == EIO) {
old_kernel = 1;
old:
get_regs_error = powerpc_getregs_old(pid);
}
/* try PTRACE_GETREGSET first, fallback to PTRACE_GETREGS */
# else