diff options
author | Jeff Johnston <jjohnstn@redhat.com> | 2009-04-04 02:29:24 +0400 |
---|---|---|
committer | Jeff Johnston <jjohnstn@redhat.com> | 2009-04-04 02:29:24 +0400 |
commit | f42552e9e1bab9f41804a051211a1b534c58d08a (patch) | |
tree | 7ead38b6cdc9e4cbe5d359788d1d799efce8fece /newlib/libc/machine | |
parent | 051f7595ff6712ff18b7b9cb0890080bd85bfe5f (diff) |
2009-04-03 Ken Werner <ken.werner@de.ibm.com>
* libc/machine/spu/spu-gmon.c: Tweaks to support simultaneous SPU
profiling.
Diffstat (limited to 'newlib/libc/machine')
-rw-r--r-- | newlib/libc/machine/spu/spu-gmon.c | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/newlib/libc/machine/spu/spu-gmon.c b/newlib/libc/machine/spu/spu-gmon.c index 527dfc66c..5709bf6b4 100644 --- a/newlib/libc/machine/spu/spu-gmon.c +++ b/newlib/libc/machine/spu/spu-gmon.c @@ -43,6 +43,7 @@ Author: Ken Werner <ken.werner@de.ibm.com> #include <spu_mfcio.h> #include <spu_timer.h> #include <limits.h> +#include <sys/linux_syscalls.h> /* Magic cookie. */ #define GMON_MAGIC_COOKIE "gmon" @@ -113,6 +114,13 @@ struct rawarc extern char _start; extern char _etext; +/* EAR entry for the starting address of SPE executable image. */ +extern const unsigned long long _EAR_; +asm (".section .toe,\"a\",@nobits\n\r" + ".align 4\n\r" + ".type _EAR_, @object\n\r" + ".size _EAR_, 16\n" "_EAR_: .space 16\n" ".previous"); + /* froms are indexing tos */ static __ea unsigned short *froms; static __ea struct tostruct *tos = 0; @@ -251,8 +259,9 @@ __mcleanup (void) } void -__monstartup (void) +__monstartup (unsigned long long spu_id) { + char filename[64]; s_lowpc = ROUNDDOWN ((uintptr_t) & _start, HISTFRACTION * sizeof (HISTCOUNTER)); s_highpc = @@ -284,23 +293,35 @@ __monstartup (void) } memset_ea (tos, 0, tolimit * sizeof (struct tostruct)); + /* Determine the gmon.out file name. */ + if (spu_id) + snprintf (filename, sizeof (filename), "gmon-%d-%llu-%llu.out", + linux_getpid (), spu_id, _EAR_); + else + strncpy (filename, "gmon.out", sizeof (filename)); /* Open the gmon.out file. */ - fd = open ("gmon.out", O_RDWR | O_CREAT | O_TRUNC, 0644); + fd = open (filename, O_RDWR | O_CREAT | O_TRUNC, 0644); if (fd == -1) { - perror ("can't open gmon.out file"); + char errstr[128]; + snprintf (errstr, sizeof (errstr), "Cannot open file: %s", filename); + perror (errstr); return; } /* Truncate the file up to the size where the histogram fits in. */ if (ftruncate (fd, - sizeof (struct gmon_hdr) + 1 + sizeof (struct gmon_hist_hdr) + hist_size) == - -1) - perror ("can't truncate the gmon.out file"); + sizeof (struct gmon_hdr) + 1 + + sizeof (struct gmon_hist_hdr) + hist_size) == -1) + { + char errstr[128]; + snprintf (errstr, sizeof (errstr), "Cannot truncate file: %s", filename); + perror (errstr); + return; + } /* Start the histogram sampler. */ spu_slih_register (MFC_DECREMENTER_EVENT, spu_clock_slih); - timer_id = spu_timer_alloc (spu_timebase () / SAMPLE_INTERVAL, - __sample); + timer_id = spu_timer_alloc (spu_timebase () / SAMPLE_INTERVAL, __sample); spu_clock_start (); spu_timer_start (timer_id); |