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#ifndef DIE_H
#define DIE_H

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <syslog.h>

#include "built_in.h"

static inline void panic(const char *format, ...)  __check_format_printf(1, 2);
static inline void syslog_panic(const char *format,
				...) __check_format_printf(1, 2);
static inline void syslog_maybe(bool cond, int priority,
				const char *format, ...) __check_format_printf(3, 4);

static inline void __noreturn __die_hard(void)
{
	exit(EXIT_FAILURE);
}

static inline void __noreturn __die_harder(void)
{
	_exit(EXIT_FAILURE);
}

static inline void __noreturn die(void)
{
	__die_hard();
}

static inline void __noreturn _die(void)
{
	__die_harder();
}

static inline void __noreturn panic(const char *format, ...)
{
	va_list vl;

	va_start(vl, format);
	vfprintf(stderr, format, vl);
	va_end(vl);

	die();
}

static inline void __noreturn syslog_panic(const char *format, ...)
{
	va_list vl;

	va_start(vl, format);
	vsyslog(LOG_ERR, format, vl);
	va_end(vl);

	die();
}

static inline void syslog_maybe(bool cond, int priority,
				const char *format, ...)
{
	if (cond) {
		va_list vl;

		va_start(vl, format);
		vsyslog(priority, format, vl);
		va_end(vl);
	}
}

#endif /* DIE_H */
). For others, we copy the pointer from the parent (link->root = link->parent->root). Previously we recognized that Root Ports originated PCIe hierarchies, but we treated PCI/PCI-X to PCIe Bridges as being in the middle of the hierarchy, and when we tried to copy the pointer from link->parent->root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
Diffstat (limited to 'tools/build/feature/test-libdw-dwarf-unwind.c')