perf tools: fix ALIGN redefinition in system headers

On some systems (e.g. Android), ALIGN is defined in system headers as
ALIGN(p).  The definition of ALIGN used in perf takes 2 parameters:
ALIGN(x,a).  This leads to redefinition conflicts.

Redefinition error on Android:
In file included from util/include/linux/list.h:1:0,
from util/callchain.h:5,
from util/hist.h:6,
from util/session.h:4,
from util/build-id.h:4,
from util/annotate.c:11:
util/include/linux/kernel.h:11:0: error: "ALIGN" redefined [-Werror]
bionic/libc/include/sys/param.h:38:0: note: this is the location of
the previous definition

Conflics with system defined ALIGN in Android:
util/event.c: In function 'perf_event__synthesize_comm':
util/event.c:115:32: error: macro "ALIGN" passed 2 arguments, but takes just 1
util/event.c:115:9: error: 'ALIGN' undeclared (first use in this function)
util/event.c:115:9: note: each undeclared identifier is reported only once for
each function it appears in

In order to avoid this redefinition, ALIGN is renamed to PERF_ALIGN.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Irina Tirdea <irina.tirdea@intel.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347315303-29906-5-git-send-email-irina.tirdea@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 84ff6f1..f7f4805 100644 (file)
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -112,7 +112,7 @@ static pid_t perf_event__synthesize_comm(struct perf_tool *tool,
        event->comm.header.type = PERF_RECORD_COMM;
 
        size = strlen(event->comm.comm) + 1;
-       size = ALIGN(size, sizeof(u64));
+       size = PERF_ALIGN(size, sizeof(u64));
        memset(event->comm.comm + size, 0, machine->id_hdr_size);
        event->comm.header.size = (sizeof(event->comm) -
                                (sizeof(event->comm.comm) - size) +
@@ -145,7 +145,7 @@ static pid_t perf_event__synthesize_comm(struct perf_tool *tool,
                                         sizeof(event->comm.comm));
 
                size = strlen(event->comm.comm) + 1;
-               size = ALIGN(size, sizeof(u64));
+               size = PERF_ALIGN(size, sizeof(u64));
                memset(event->comm.comm + size, 0, machine->id_hdr_size);
                event->comm.header.size = (sizeof(event->comm) -
                                          (sizeof(event->comm.comm) - size) +
@@ -228,7 +228,7 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
                        size = strlen(execname);
                        execname[size - 1] = '\0'; /* Remove \n */
                        memcpy(event->mmap.filename, execname, size);
-                       size = ALIGN(size, sizeof(u64));
+                       size = PERF_ALIGN(size, sizeof(u64));
                        event->mmap.len -= event->mmap.start;
                        event->mmap.header.size = (sizeof(event->mmap) -
                                                (sizeof(event->mmap.filename) - size));
@@ -282,7 +282,7 @@ int perf_event__synthesize_modules(struct perf_tool *tool,
                if (pos->dso->kernel)
                        continue;
 
-               size = ALIGN(pos->dso->long_name_len + 1, sizeof(u64));
+               size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64));
                event->mmap.header.type = PERF_RECORD_MMAP;
                event->mmap.header.size = (sizeof(event->mmap) -
                                        (sizeof(event->mmap.filename) - size));
@@ -494,7 +494,7 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
        map = machine->vmlinux_maps[MAP__FUNCTION];
        size = snprintf(event->mmap.filename, sizeof(event->mmap.filename),
                        "%s%s", mmap_name, symbol_name) + 1;
-       size = ALIGN(size, sizeof(u64));
+       size = PERF_ALIGN(size, sizeof(u64));
        event->mmap.header.type = PERF_RECORD_MMAP;
        event->mmap.header.size = (sizeof(event->mmap) -
                        (sizeof(event->mmap.filename) - size) + machine->id_hdr_size);

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 0e088d0..21b99e7 100644 (file)
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -101,7 +101,7 @@ struct perf_sample {
 struct build_id_event {
        struct perf_event_header header;
        pid_t                    pid;
-       u8                       build_id[ALIGN(BUILD_ID_SIZE, sizeof(u64))];
+       u8                       build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))];
        char                     filename[];
 };
 

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index d07bc13..974e758 100644 (file)
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -129,7 +129,7 @@ static int do_write_string(int fd, const char *str)
        int ret;
 
        olen = strlen(str) + 1;
-       len = ALIGN(olen, NAME_ALIGN);
+       len = PERF_ALIGN(olen, NAME_ALIGN);
 
        /* write len, incl. \0 */
        ret = do_write(fd, &len, sizeof(len));
@@ -220,7 +220,7 @@ static int __dsos__write_buildid_table(struct list_head *head, pid_t pid,
                if (!pos->hit)
                        continue;
                len = pos->long_name_len + 1;
-               len = ALIGN(len, NAME_ALIGN);
+               len = PERF_ALIGN(len, NAME_ALIGN);
                memset(&b, 0, sizeof(b));
                memcpy(&b.build_id, pos->build_id, sizeof(pos->build_id));
                b.pid = pid;
@@ -1532,7 +1532,7 @@ static int perf_header__read_build_ids_abi_quirk(struct perf_header *header,
        struct perf_session *session = container_of(header, struct perf_session, header);
        struct {
                struct perf_event_header   header;
-               u8                         build_id[ALIGN(BUILD_ID_SIZE, sizeof(u64))];
+               u8                         build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))];
                char                       filename[0];
        } old_bev;
        struct build_id_event bev;
@@ -2439,7 +2439,7 @@ int perf_event__synthesize_attr(struct perf_tool *tool,
        int err;
 
        size = sizeof(struct perf_event_attr);
-       size = ALIGN(size, sizeof(u64));
+       size = PERF_ALIGN(size, sizeof(u64));
        size += sizeof(struct perf_event_header);
        size += ids * sizeof(u64);
 
@@ -2537,7 +2537,7 @@ int perf_event__synthesize_event_type(struct perf_tool *tool,
 
        ev.event_type.header.type = PERF_RECORD_HEADER_EVENT_TYPE;
        size = strlen(ev.event_type.event_type.name);
-       size = ALIGN(size, sizeof(u64));
+       size = PERF_ALIGN(size, sizeof(u64));
        ev.event_type.header.size = sizeof(ev.event_type) -
                (sizeof(ev.event_type.event_type.name) - size);
 
@@ -2606,7 +2606,7 @@ int perf_event__synthesize_tracing_data(struct perf_tool *tool, int fd,
 
        ev.tracing_data.header.type = PERF_RECORD_HEADER_TRACING_DATA;
        size = tdata->size;
-       aligned_size = ALIGN(size, sizeof(u64));
+       aligned_size = PERF_ALIGN(size, sizeof(u64));
        padding = aligned_size - size;
        ev.tracing_data.header.size = sizeof(ev.tracing_data);
        ev.tracing_data.size = aligned_size;
@@ -2637,7 +2637,7 @@ int perf_event__process_tracing_data(union perf_event *event,
 
        size_read = trace_report(session->fd, &session->pevent,
                                 session->repipe);
-       padding = ALIGN(size_read, sizeof(u64)) - size_read;
+       padding = PERF_ALIGN(size_read, sizeof(u64)) - size_read;
 
        if (read(session->fd, buf, padding) < 0)
                die("reading input file");
@@ -2671,7 +2671,7 @@ int perf_event__synthesize_build_id(struct perf_tool *tool,
        memset(&ev, 0, sizeof(ev));
 
        len = pos->long_name_len + 1;
-       len = ALIGN(len, NAME_ALIGN);
+       len = PERF_ALIGN(len, NAME_ALIGN);
        memcpy(&ev.build_id.build_id, pos->build_id, sizeof(pos->build_id));
        ev.build_id.header.type = PERF_RECORD_HEADER_BUILD_ID;
        ev.build_id.header.misc = misc;

diff --git a/tools/perf/util/include/linux/kernel.h b/tools/perf/util/include/linux/kernel.h
index a978f26..d8c927c 100644 (file)
--- a/tools/perf/util/include/linux/kernel.h
+++ b/tools/perf/util/include/linux/kernel.h
@@ -8,8 +8,8 @@
 
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
 
-#define ALIGN(x,a)             __ALIGN_MASK(x,(typeof(x))(a)-1)
-#define __ALIGN_MASK(x,mask)   (((x)+(mask))&~(mask))
+#define PERF_ALIGN(x, a)       __PERF_ALIGN_MASK(x, (typeof(x))(a)-1)
+#define __PERF_ALIGN_MASK(x, mask)     (((x)+(mask))&~(mask))
 
 #ifndef offsetof
 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 9453758..3806ea4 100644 (file)
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -527,7 +527,7 @@ static void perf_event__comm_swap(union perf_event *event, bool sample_id_all)
        if (sample_id_all) {
                void *data = &event->comm.comm;
 
-               data += ALIGN(strlen(data) + 1, sizeof(u64));
+               data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
                swap_sample_id_all(event, data);
        }
 }
@@ -544,7 +544,7 @@ static void perf_event__mmap_swap(union perf_event *event,
        if (sample_id_all) {
                void *data = &event->mmap.filename;
 
-               data += ALIGN(strlen(data) + 1, sizeof(u64));
+               data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
                swap_sample_id_all(event, data);
        }
 }

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 753699a..ba85d4f 100644 (file)
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1991,7 +1991,7 @@ int symbol__init(void)
        if (symbol_conf.initialized)
                return 0;
 
-       symbol_conf.priv_size = ALIGN(symbol_conf.priv_size, sizeof(u64));
+       symbol_conf.priv_size = PERF_ALIGN(symbol_conf.priv_size, sizeof(u64));
 
        symbol__elf_init();