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From 02cefdaa6429e620d6457fdb3ad9934f194c5a93 Mon Sep 17 00:00:00 2001
From: Kurt Roeckx <kurt@roeckx.be>
Date: Tue, 22 Apr 2014 21:46:22 +0200
Subject: [PATCH] Unwinding is only supported on Linux
Index: elfutils-0.158/backends/i386_initreg.c
===================================================================
--- elfutils-0.158.orig/backends/i386_initreg.c 2014-05-01 17:11:18.870616302 +0000
+++ elfutils-0.158/backends/i386_initreg.c 2014-05-01 17:11:18.866616384 +0000
@@ -44,7 +44,7 @@
ebl_tid_registers_t *setfunc __attribute__ ((unused)),
void *arg __attribute__ ((unused)))
{
-#if !defined __i386__ && !defined __x86_64__
+#if (!defined __i386__ && !defined __x86_64__) || !defined(__linux__)
return false;
#else /* __i386__ || __x86_64__ */
struct user_regs_struct user_regs;
Index: elfutils-0.158/backends/x86_64_initreg.c
===================================================================
--- elfutils-0.158.orig/backends/x86_64_initreg.c 2014-05-01 17:11:18.870616302 +0000
+++ elfutils-0.158/backends/x86_64_initreg.c 2014-05-01 17:11:18.866616384 +0000
@@ -44,7 +44,7 @@
ebl_tid_registers_t *setfunc __attribute__ ((unused)),
void *arg __attribute__ ((unused)))
{
-#ifndef __x86_64__
+#if !defined(__x86_64__) || !defined(__linux__)
return false;
#else /* __x86_64__ */
struct user_regs_struct user_regs;
Index: elfutils-0.158/libdwfl/linux-pid-attach.c
===================================================================
--- elfutils-0.158.orig/libdwfl/linux-pid-attach.c 2014-05-01 17:11:18.870616302 +0000
+++ elfutils-0.158/libdwfl/linux-pid-attach.c 2014-05-01 17:12:47.980766442 +0000
@@ -37,6 +37,8 @@
# define MAX(a, b) ((a) > (b) ? (a) : (b))
#endif
+#ifdef __linux__
+
struct pid_arg
{
DIR *dir;
@@ -358,3 +360,87 @@
return 0;
}
INTDEF (dwfl_linux_proc_attach)
+
+#else /* __linux__ */
+
+static pid_t
+pid_next_thread (Dwfl *dwfl __attribute__ ((unused)),
+ void *dwfl_arg __attribute__ ((unused)),
+ void **thread_argp __attribute__ ((unused)))
+{
+ errno = ENOSYS;
+ __libdwfl_seterrno (DWFL_E_ERRNO);
+ return -1;
+}
+
+static bool
+pid_getthread (Dwfl *dwfl __attribute__ ((unused)),
+ pid_t tid __attribute__ ((unused)),
+ void *dwfl_arg __attribute__ ((unused)),
+ void **thread_argp __attribute__ ((unused)))
+{
+ errno = ENOSYS;
+ __libdwfl_seterrno (DWFL_E_ERRNO);
+ return false;
+}
+
+static bool
+pid_memory_read (Dwfl *dwfl __attribute__ ((unused)),
+ Dwarf_Addr addr __attribute__ ((unused)),
+ Dwarf_Word *result __attribute__ ((unused)),
+ void *arg __attribute__ ((unused)))
+{
+ errno = ENOSYS;
+ __libdwfl_seterrno (DWFL_E_ERRNO);
+ return false;
+}
+
+static bool
+pid_set_initial_registers (Dwfl_Thread *thread __attribute__ ((unused)),
+ void *thread_arg __attribute__ ((unused)))
+{
+ errno = ENOSYS;
+ __libdwfl_seterrno (DWFL_E_ERRNO);
+ return false;
+}
+
+static void
+pid_detach (Dwfl *dwfl __attribute__ ((unused)),
+ void *dwfl_arg __attribute__ ((unused)))
+{
+}
+
+static void
+pid_thread_detach (Dwfl_Thread *thread __attribute__ ((unused)),
+ void *thread_arg __attribute__ ((unused)))
+{
+}
+
+static const Dwfl_Thread_Callbacks pid_thread_callbacks =
+{
+ pid_next_thread,
+ pid_getthread,
+ pid_memory_read,
+ pid_set_initial_registers,
+ pid_detach,
+ pid_thread_detach,
+};
+
+int
+dwfl_linux_proc_attach (Dwfl *dwfl __attribute__ ((unused)),
+ pid_t pid __attribute__ ((unused)),
+ bool assume_ptrace_stopped __attribute__ ((unused)))
+{
+ return ENOSYS;
+}
+INTDEF (dwfl_linux_proc_attach)
+
+struct __libdwfl_pid_arg *
+internal_function
+__libdwfl_get_pid_arg (Dwfl *dwfl __attribute__ ((unused)))
+{
+ return NULL;
+}
+
+#endif /* ! __linux __ */
+
Index: elfutils-0.158/tests/backtrace-child.c
===================================================================
--- elfutils-0.158.orig/tests/backtrace-child.c 2014-05-01 17:11:18.870616302 +0000
+++ elfutils-0.158/tests/backtrace-child.c 2014-05-01 17:11:18.866616384 +0000
@@ -79,6 +79,18 @@
#include <stdio.h>
#include <unistd.h>
+#ifndef __linux__
+
+int
+main (int argc __attribute__ ((unused)), char **argv)
+{
+ fprintf (stderr, "%s: Unwinding not supported for this architecture\n",
+ argv[0]);
+ return 77;
+}
+
+#else /* __linux__ */
+
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
#define NOINLINE_NOCLONE __attribute__ ((noinline, noclone))
#else
@@ -221,3 +233,6 @@
/* Not reached. */
abort ();
}
+
+#endif /* ! __linux__ */
+
Index: elfutils-0.158/tests/backtrace-data.c
===================================================================
--- elfutils-0.158.orig/tests/backtrace-data.c 2014-05-01 17:11:18.870616302 +0000
+++ elfutils-0.158/tests/backtrace-data.c 2014-05-01 17:11:18.866616384 +0000
@@ -40,7 +40,7 @@
#include <string.h>
#include ELFUTILS_HEADER(dwfl)
-#ifndef __x86_64__
+#if !defined(__x86_64__) || !defined(__linux__)
int
main (int argc __attribute__ ((unused)), char **argv)
@@ -50,7 +50,7 @@
return 77;
}
-#else /* __x86_64__ */
+#else /* __x86_64__ && __linux__ */
/* The only arch specific code is set_initial_registers. */
Index: elfutils-0.158/tests/backtrace-dwarf.c
===================================================================
--- elfutils-0.158.orig/tests/backtrace-dwarf.c 2014-05-01 17:11:18.870616302 +0000
+++ elfutils-0.158/tests/backtrace-dwarf.c 2014-05-01 17:11:18.866616384 +0000
@@ -25,6 +25,18 @@
#include <sys/ptrace.h>
#include ELFUTILS_HEADER(dwfl)
+#ifndef __linux__
+
+int
+main (int argc __attribute__ ((unused)), char **argv)
+{
+ fprintf (stderr, "%s: Unwinding not supported for this architecture\n",
+ argv[0]);
+ return 77;
+}
+
+#else /* __linux__ */
+
static void cleanup_13_abort (void);
#define main cleanup_13_main
#include "cleanup-13.c"
@@ -148,3 +160,6 @@
/* There is an exit (0) call if we find the "main" frame, */
error (1, 0, "dwfl_getthreads: %s", dwfl_errmsg (-1));
}
+
+#endif /* ! __linux__ */
+
Index: elfutils-0.158/tests/backtrace-subr.sh
===================================================================
--- elfutils-0.158.orig/tests/backtrace-subr.sh 2014-05-01 17:11:18.870616302 +0000
+++ elfutils-0.158/tests/backtrace-subr.sh 2014-05-01 17:11:18.866616384 +0000
@@ -84,6 +84,7 @@
echo ./backtrace ./backtrace.$arch.{exec,core}
testrun ${abs_builddir}/backtrace -e ./backtrace.$arch.exec --core=./backtrace.$arch.core 1>backtrace.$arch.bt 2>backtrace.$arch.err || true
cat backtrace.$arch.{bt,err}
+ check_unsupported backtrace.$arch.err backtrace.$arch.core
check_all backtrace.$arch.{bt,err} backtrace.$arch.core
}
Index: elfutils-0.158/tests/backtrace.c
===================================================================
--- elfutils-0.158.orig/tests/backtrace.c 2014-05-01 17:11:18.870616302 +0000
+++ elfutils-0.158/tests/backtrace.c 2014-05-01 17:11:18.866616384 +0000
@@ -39,6 +39,18 @@
#include <sys/syscall.h>
#include ELFUTILS_HEADER(dwfl)
+#ifndef __linux__
+
+int
+main (int argc __attribute__ ((unused)), char **argv)
+{
+ fprintf (stderr, "%s: Unwinding not supported for this architecture\n",
+ argv[0]);
+ return 77;
+}
+
+#else /* __linux__ */
+
static int
dump_modules (Dwfl_Module *mod, void **userdata __attribute__ ((unused)),
const char *name, Dwarf_Addr start,
@@ -452,3 +464,6 @@
dwfl_end (dwfl);
return 0;
}
+
+#endif /* ! __linux__ */
+
|
