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8069030: support new PTRACE_GETREGSET

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Use PTRACE_GETREGSET if other options are not available

Reviewed-by: sla, dholmes
This commit is contained in:
Dean Long 2015-02-02 23:26:33 -05:00
parent 2b99947be1
commit 0682d29b8f
1 changed files with 11 additions and 0 deletions
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11
hotspot/agent/src/os/linux/ps_proc.c
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@ -27,9 +27,11 @@
#include <string.h>
#include <signal.h>
#include <errno.h>
#include <elf.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/ptrace.h>
#include <sys/uio.h>
#include "libproc_impl.h"
#if defined(x86_64) && !defined(amd64)
@ -138,6 +140,15 @@ static bool process_get_lwp_regs(struct ps_prochandle* ph, pid_t pid, struct use
return false;
}
return true;
#elif defined(PTRACE_GETREGSET)
struct iovec iov;
iov.iov_base = user;
iov.iov_len = sizeof(*user);
if (ptrace(PTRACE_GETREGSET, pid, NT_PRSTATUS, (void*) &iov) < 0) {
print_debug("ptrace(PTRACE_GETREGSET, ...) failed for lwp %d\n", pid);
return false;
}
return true;
#else
print_debug("ptrace(PTRACE_GETREGS, ...) not supported\n");
return false;