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perf probe: Fix libdwarf include path for Debian

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Fix libdwarf include path to fit debian-like systems too.

Borislav Petkov reported:

> even after installing libdwarf-dev on my debian box here,
> make in tools/perf/ still complains that it cannot find libdwarf:
>
> Makefile:491: No libdwarf.h found or old libdwarf.h found, disables dwarf
> support. Please install libdwarf-dev/libdwarf-devel >= 20081231
>
> The problem is that the include path on debian is not
> /usr/include/libdwarf/ but simply /usr/include because the debian
> package libdwarf-dev puts the headers straight into
> /usr/include.

This patch adds -I/usr/include/libdwarf to BASIC_CFLAGS
and fix probe-finder.h to include just libdwarf.h/dwarf.h.

This patch also adds a workaround for the undefined _MIPS_SZLONG
bug in libdwarf.h.

Reported-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Gabor Gombas <gombasg@sztaki.hu>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <20091216221618.13816.83296.stgit@dhcp-100-2-132.bos.redhat.com>
[ v2: small stylistic fixlets to probe-finder.h ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Masami Hiramatsu
2009-12-16 17:16:19 -05:00
committed by Ingo Molnar
parent 718deb6b61
commit 27f3b24de0
2 changed files with 34 additions and 28 deletions
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59
tools/perf/util/probe-finder.h
View File

@@ -1,9 +1,9 @@
#ifndef _PROBE_FINDER_H
#define _PROBE_FINDER_H
#define MAX_PATH_LEN 256
#define MAX_PROBE_BUFFER 1024
#define MAX_PROBES 128
#define MAX_PATH_LEN 256
#define MAX_PROBE_BUFFER 1024
#define MAX_PROBES 128
static inline int is_c_varname(const char *name)
{
@@ -12,48 +12,53 @@ static inline int is_c_varname(const char *name)
}
struct probe_point {
char *event; /* Event name */
char *group; /* Event group */
char *event; /* Event name */
char *group; /* Event group */
/* Inputs */
char *file; /* File name */
int line; /* Line number */
char *file; /* File name */
int line; /* Line number */
char *function; /* Function name */
int offset; /* Offset bytes */
char *function; /* Function name */
int offset; /* Offset bytes */
int nr_args; /* Number of arguments */
char **args; /* Arguments */
int nr_args; /* Number of arguments */
char **args; /* Arguments */
int retprobe; /* Return probe */
int retprobe; /* Return probe */
/* Output */
int found; /* Number of found probe points */
char *probes[MAX_PROBES]; /* Output buffers (will be allocated)*/
int found; /* Number of found probe points */
char *probes[MAX_PROBES]; /* Output buffers (will be allocated)*/
};
#ifndef NO_LIBDWARF
extern int find_probepoint(int fd, struct probe_point *pp);
#include <libdwarf/dwarf.h>
#include <libdwarf/libdwarf.h>
/* Workaround for undefined _MIPS_SZLONG bug in libdwarf.h: */
#ifndef _MIPS_SZLONG
# define _MIPS_SZLONG 0
#endif
#include <dwarf.h>
#include <libdwarf.h>
struct probe_finder {
struct probe_point *pp; /* Target probe point */
struct probe_point *pp; /* Target probe point */
/* For function searching */
Dwarf_Addr addr; /* Address */
Dwarf_Unsigned fno; /* File number */
Dwarf_Unsigned lno; /* Line number */
Dwarf_Off inl_offs; /* Inline offset */
Dwarf_Die cu_die; /* Current CU */
Dwarf_Addr addr; /* Address */
Dwarf_Unsigned fno; /* File number */
Dwarf_Unsigned lno; /* Line number */
Dwarf_Off inl_offs; /* Inline offset */
Dwarf_Die cu_die; /* Current CU */
/* For variable searching */
Dwarf_Addr cu_base; /* Current CU base address */
Dwarf_Locdesc fbloc; /* Location of Current Frame Base */
const char *var; /* Current variable name */
char *buf; /* Current output buffer */
int len; /* Length of output buffer */
Dwarf_Addr cu_base; /* Current CU base address */
Dwarf_Locdesc fbloc; /* Location of Current Frame Base */
const char *var; /* Current variable name */
char *buf; /* Current output buffer */
int len; /* Length of output buffer */
};
#endif /* NO_LIBDWARF */