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Commit c9f5da74 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

tools: Adopt __packed from kernel sources 

To have a more compact way to ask the compiler to not insert alignment
paddings in a struct, making tools/ look more like kernel source code.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-byp46nr7hsxvvyc9oupfb40q@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 9dd4ca47

tools/include/linux/compiler-gcc.h

+2 −0
Original line number Diff line number Diff line
@@ -22,6 +22,8 @@ 


#define  noinline	__attribute__((noinline))



#define __packed	__attribute__((packed))



#define __noreturn	__attribute__((noreturn))



#define __printf(a, b)	__attribute__((format(printf, a, b)))

tools/perf/util/genelf_debug.c

+3 −2
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
 * @remark Copyright 2007 OProfile authors

 * @author Philippe Elie

 */

#include <linux/compiler.h>

#include <sys/types.h>

#include <stdio.h>

#include <getopt.h>
@@ -125,7 +126,7 @@ struct debug_line_header { 
	 * and filesize, last entry is followed by en empty string.

	 */

	/* follow the first program statement */

} __attribute__((packed));

} __packed;



/* DWARF 2 spec talk only about one possible compilation unit header while

 * binutils can handle two flavours of dwarf 2, 32 and 64 bits, this is not
@@ -138,7 +139,7 @@ struct compilation_unit_header { 
	uhalf version;

	uword debug_abbrev_offset;

	ubyte pointer_size;

} __attribute__((packed));

} __packed;



#define DW_LNS_num_opcode (DW_LNS_set_isa + 1)