diff options
Diffstat (limited to 'libc')
33 files changed, 11 insertions, 1476 deletions
diff --git a/libc/sysdeps/linux/alpha/__longjmp.S b/libc/sysdeps/linux/alpha/__longjmp.S index 2db4e22e9..b78489f53 100644 --- a/libc/sysdeps/linux/alpha/__longjmp.S +++ b/libc/sysdeps/linux/alpha/__longjmp.S @@ -29,16 +29,7 @@ __longjmp: .frame $30 , 0, $26 -#ifdef PROF - ldgp gp, 0(pv) - .set noat - lda AT, _mcount - jsr AT, (AT), _mcount - .set at - .prologue 1 -#else .prologue 0 -#endif mov $17, $0 ldq $9, JB_S0*8(a0) diff --git a/libc/sysdeps/linux/alpha/bits/machine-gmon.h b/libc/sysdeps/linux/alpha/bits/machine-gmon.h deleted file mode 100644 index 5f5522c0b..000000000 --- a/libc/sysdeps/linux/alpha/bits/machine-gmon.h +++ /dev/null @@ -1,26 +0,0 @@ -/* Machine-specific calling sequence for `mcount' profiling function. alpha - Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#define _MCOUNT_DECL(from, self) \ - void __mcount (u_long from, u_long self) - -/* Call __mcount with our the return PC for our caller, and the return - PC our caller will return to. Empty since we use an assembly stub - instead. */ -#define MCOUNT diff --git a/libc/sysdeps/linux/alpha/brk.S b/libc/sysdeps/linux/alpha/brk.S index 8c70a0ce5..4e15518d2 100644 --- a/libc/sysdeps/linux/alpha/brk.S +++ b/libc/sysdeps/linux/alpha/brk.S @@ -46,12 +46,6 @@ __brk: .frame $30 , 8 , $26 ldgp $29, 0($27) subq $30, 8, $30 -#ifdef PROF - .set noat - lda AT, _mcount - jsr AT, (AT), _mcount - .set at -#endif .prologue 1 /* Save the requested brk across the system call. */ diff --git a/libc/sysdeps/linux/alpha/clone.S b/libc/sysdeps/linux/alpha/clone.S index b17a5ec68..396816184 100644 --- a/libc/sysdeps/linux/alpha/clone.S +++ b/libc/sysdeps/linux/alpha/clone.S @@ -44,16 +44,7 @@ __clone: .frame $30 , 0, $26 -#ifdef PROF - ldgp gp,0(pv) - .set noat - lda AT, _mcount - jsr AT, (AT), _mcount - .set at - .prologue 1 -#else .prologue 0 -#endif /* Sanity check arguments. */ ldiq v0,EINVAL @@ -78,10 +69,8 @@ __clone: /* Something bad happened -- no child created */ $error: -#ifndef PROF br gp,1f 1: ldgp gp,0(gp) -#endif jmp zero,__syscall_error .end __clone diff --git a/libc/sysdeps/linux/alpha/divrem.h b/libc/sysdeps/linux/alpha/divrem.h index d22759e40..ca3db4b49 100644 --- a/libc/sysdeps/linux/alpha/divrem.h +++ b/libc/sysdeps/linux/alpha/divrem.h @@ -130,22 +130,6 @@ UFUNC_NAME: lda sp, -STACK(sp) .frame sp, STACK, retaddr, 0 -#ifdef PROF - stq ra, 0(sp) - stq pv, 8(sp) - stq gp, 16(sp) - - br AT, 1f -1: ldgp gp, 0(AT) - - mov retaddr, ra - lda AT, _mcount - jsr AT, (AT), _mcount - - ldq ra, 0(sp) - ldq pv, 8(sp) - ldq gp, 16(sp) -#endif .prologue 0 $udiv: @@ -216,21 +200,6 @@ $divbyzero: SFUNC_NAME: lda sp, -STACK(sp) .frame sp, STACK, retaddr, 0 -#ifdef PROF - stq ra, 0(sp) - stq pv, 8(sp) - stq gp, 16(sp) - - br AT, 1f -1: ldgp gp, 0(AT) - - mov retaddr, ra - jsr AT, _mcount - - ldq ra, 0(sp) - ldq pv, 8(sp) - ldq gp, 16(sp) -#endif .prologue 0 or arg1, arg2, AT diff --git a/libc/sysdeps/linux/alpha/setjmp.S b/libc/sysdeps/linux/alpha/setjmp.S index 69649eeab..105cc8292 100644 --- a/libc/sysdeps/linux/alpha/setjmp.S +++ b/libc/sysdeps/linux/alpha/setjmp.S @@ -34,12 +34,6 @@ $sigsetjmp_local: .frame $26, 16, $26, 0 stq $26, 0($30) .mask 0x04000000, -16 -#ifdef PROF - .set noat - lda AT, _mcount - jsr AT, (AT), _mcount - .set at -#endif .prologue 1 stq $9, JB_S0*8(a0) diff --git a/libc/sysdeps/linux/arm/Makefile b/libc/sysdeps/linux/arm/Makefile index f2582e1a8..6a80686a7 100644 --- a/libc/sysdeps/linux/arm/Makefile +++ b/libc/sysdeps/linux/arm/Makefile @@ -21,7 +21,7 @@ include $(TOPDIR)Rules.mak ASFLAGS=$(CFLAGS) CRT0_SRC = crt0.S -CRT0_OBJ = crt0.o crt1.o gcrt1.o +CRT0_OBJ = crt0.o crt1.o CRT0_DEPS=gmon-start.S CTOR_TARGETS=$(TOPDIR)lib/crti.o $(TOPDIR)lib/crtn.o @@ -54,12 +54,6 @@ $(COBJS): %.o : %.c $(CC) $(CFLAGS) -c $< -o $@ $(STRIPTOOL) -x -R .note -R .comment $*.o -ifeq ($(strip $(UCLIBC_PROFILING)),y) -gmon-start.S: ../common/gmon-start.c - $(CC) $(CFLAGS) -c $< -S -o $*.S -gcrt1.o: $(CRT0_DEPS) -endif - ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y) crti.o: crti.S $(CC) $(CFLAGS) -c crti.S -o crti.o diff --git a/libc/sysdeps/linux/arm/bits/machine-gmon.h b/libc/sysdeps/linux/arm/bits/machine-gmon.h deleted file mode 100644 index 039dfd951..000000000 --- a/libc/sysdeps/linux/arm/bits/machine-gmon.h +++ /dev/null @@ -1,67 +0,0 @@ -/* Machine-dependent definitions for profiling support. ARM version. - Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* GCC for the ARM cannot compile __builtin_return_address(N) for N != 0, - so we must use an assembly stub. */ - -#include <sysdep.h> -#ifndef NO_UNDERSCORES -/* The asm symbols for C functions are `_function'. - The canonical name for the counter function is `mcount', no _. */ -void _mcount (void) asm ("mcount"); -#else -/* The canonical name for the function is `_mcount' in both C and asm, - but some old asm code might assume it's `mcount'. */ -void _mcount (void); -weak_alias (_mcount, mcount) -#endif - -static void mcount_internal (u_long frompc, u_long selfpc); - -#define _MCOUNT_DECL(frompc, selfpc) \ -static void mcount_internal (u_long frompc, u_long selfpc) - -/* This macro/func MUST save r0, r1 because the compiler inserts - blind calls to _mount(), ignoring the fact that _mcount may - clobber registers; therefore, _mcount may NOT clobber registers */ -/* if (this_fp!=0) { - r0 = this_fp - r1 = this_lr - r1 = [r1-4] which is caller's lr - if (r1!=0) - r1 = caller's lr - call mcount_internal(this_lr, caller's_lr) - } -*/ - -#define MCOUNT \ -void _mcount (void) \ -{ \ - __asm__("stmdb sp!, {r0, r1, r2, r3};" \ - "movs fp, fp;" \ - "moveq r1, #0;" \ - "ldrne r1, [fp, $-4];" \ - "ldrne r0, [fp, $-12];" \ - "movnes r0, r0;" \ - "ldrne r0, [r0, $-4];" \ - "movs r0, r0;" \ - "blne mcount_internal;" \ - "ldmia sp!, {r0, r1, r2, r3}"); \ -} - diff --git a/libc/sysdeps/linux/arm/crt0.S b/libc/sysdeps/linux/arm/crt0.S index 6704a81e2..455d35d2d 100644 --- a/libc/sysdeps/linux/arm/crt0.S +++ b/libc/sysdeps/linux/arm/crt0.S @@ -92,7 +92,7 @@ _start: ldr r2,[sp, #8] #endif -#if (defined L_crt1 || defined L_gcrt1 ) && defined __UCLIBC_CTOR_DTOR__ +#if (defined L_crt1 ) && defined __UCLIBC_CTOR_DTOR__ /* Store the address of _init in r3 as an argument to main() */ ldr r3, =_init @@ -123,11 +123,6 @@ _start: .long 2,0,0 3: .align 4 -#if defined L_gcrt1 && defined __UCLIBC_PROFILING__ -# include "./gmon-start.S" -#endif - - /* Define a symbol for the first piece of initialized data. */ .data .globl __data_start diff --git a/libc/sysdeps/linux/common/Makefile b/libc/sysdeps/linux/common/Makefile index 1256e2376..1930351fb 100644 --- a/libc/sysdeps/linux/common/Makefile +++ b/libc/sysdeps/linux/common/Makefile @@ -57,9 +57,6 @@ CSRC= __rt_sigtimedwait.c __socketcall.c __syscall_fcntl.c \ ifneq ($(strip $(EXCLUDE_BRK)),y) CSRC+=sbrk.c endif -ifeq ($(strip $(UCLIBC_PROFILING)),y) -CSRC+=gmon.c -endif ifeq ($(strip $(UCLIBC_PROPOLICE)),y) CSRC+=ssp.c endif diff --git a/libc/sysdeps/linux/common/bits/dlfcn.h b/libc/sysdeps/linux/common/bits/dlfcn.h index e96b5c17a..75122a98a 100644 --- a/libc/sysdeps/linux/common/bits/dlfcn.h +++ b/libc/sysdeps/linux/common/bits/dlfcn.h @@ -40,25 +40,3 @@ /* Do not delete object when closed. */ #define RTLD_NODELETE 0x01000 -#ifdef __USE_GNU -/* To support profiling of shared objects it is a good idea to call - the function found using `dlsym' using the following macro since - these calls do not use the PLT. But this would mean the dynamic - loader has no chance to find out when the function is called. The - macro applies the necessary magic so that profiling is possible. - Rewrite - foo = (*fctp) (arg1, arg2); - into - foo = DL_CALL_FCT (fctp, (arg1, arg2)); -*/ -# define DL_CALL_FCT(fctp, args) \ - (_dl_mcount_wrapper_check ((void *) (fctp)), (*(fctp)) args) - -__BEGIN_DECLS - -/* This function calls the profiling functions. */ -extern void _dl_mcount_wrapper_check (void *__selfpc) __THROW; - -__END_DECLS - -#endif diff --git a/libc/sysdeps/linux/common/bits/machine-gmon.h b/libc/sysdeps/linux/common/bits/machine-gmon.h deleted file mode 100644 index 7dd36308b..000000000 --- a/libc/sysdeps/linux/common/bits/machine-gmon.h +++ /dev/null @@ -1,58 +0,0 @@ -/* Machine-dependent definitions for profiling support. Generic GCC 2 version. - Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* GCC version 2 gives us a perfect magical function to get - just the information we need: - void *__builtin_return_address (unsigned int N) - returns the return address of the frame N frames up. */ - -/* Be warned that GCC cannot usefully compile __builtin_return_address(N) - for N != 0 on all machines. In this case, you may have to write - your own version of _mcount(). */ - -#if __GNUC__ < 2 - #error "This file uses __builtin_return_address, a GCC 2 extension." -#endif - -#include <sysdep.h> -#ifndef NO_UNDERSCORES -/* The asm symbols for C functions are `_function'. - The canonical name for the counter function is `mcount', no _. */ -void _mcount (void) asm ("mcount"); -#else -/* The canonical name for the function is `_mcount' in both C and asm, - but some old asm code might assume it's `mcount'. */ -void _mcount (void); -weak_alias (_mcount, mcount) -#endif - -static void mcount_internal (u_long frompc, u_long selfpc); - -#define _MCOUNT_DECL(frompc, selfpc) \ -static inline void mcount_internal (u_long frompc, u_long selfpc) - -#ifndef RETURN_ADDRESS -#define RETURN_ADDRESS(n) __builtin_return_address(n) -#endif - -#define MCOUNT \ -void _mcount (void) \ -{ \ - mcount_internal ((u_long) RETURN_ADDRESS (1), (u_long) RETURN_ADDRESS (0)); \ -} diff --git a/libc/sysdeps/linux/common/gmon-start.c b/libc/sysdeps/linux/common/gmon-start.c deleted file mode 100644 index 6878a7a71..000000000 --- a/libc/sysdeps/linux/common/gmon-start.c +++ /dev/null @@ -1,58 +0,0 @@ -/* Code to enable profiling at program startup. - Copyright (C) 1995,1996,1997,2000,2001,2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <features.h> -#include <stdlib.h> -#include <unistd.h> -#include <sys/types.h> -#include <sys/gmon.h> - -#ifdef __UCLIBC_PROFILING__ - -/* Beginning and end of our code segment. We cannot declare them - as the external functions since we want the addresses of those - labels. Taking the address of a function may have different - meanings on different platforms. */ - -extern void _start; -extern void etext; - - -void __gmon_start__ (void) -{ -#ifdef __UCLIBC_CTOR_DTOR__ - /* Protect from being called more than once. Since crti.o is linked - into every shared library, each of their init functions will call us. */ - static int called; - - if (called) - return; - - called = 1; -#endif - - /* Start keeping profiling records. */ - monstartup ((u_long) &_start, (u_long) &etext); - - /* Call _mcleanup before exiting; it will write out gmon.out from the - collected data. */ - atexit (&_mcleanup); -} -#endif - diff --git a/libc/sysdeps/linux/common/gmon.c b/libc/sysdeps/linux/common/gmon.c deleted file mode 100644 index a3444a28e..000000000 --- a/libc/sysdeps/linux/common/gmon.c +++ /dev/null @@ -1,640 +0,0 @@ -/*- - * Copyright (c) 1983, 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <features.h> -#include <sys/param.h> -#include <sys/time.h> -#include <sys/gmon.h> -#include <sys/gmon_out.h> -#include <sys/uio.h> - -#include <errno.h> -#include <stdio.h> -#include <fcntl.h> -#include <unistd.h> - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <signal.h> -#include <sys/time.h> -#include <sys/types.h> - -#ifdef __UCLIBC_PROFILING__ - -/* Head of basic-block list or NULL. */ -struct __bb *__bb_head; - -struct gmonparam _gmonparam = { state: GMON_PROF_OFF }; - -/* - * See profil(2) where this is described: - */ -static int s_scale; -#define SCALE_1_TO_1 0x10000L - -#define ERR(s) write (STDERR_FILENO, s, sizeof (s) - 1) - -void moncontrol __P ((int mode)); -static void write_hist __P ((int fd)); -static void write_call_graph __P ((int fd)); -static void write_bb_counts __P ((int fd)); - -/* - * Control profiling - * profiling is what mcount checks to see if - * all the data structures are ready. - */ -void moncontrol (int mode) -{ - struct gmonparam *p = &_gmonparam; - - /* Don't change the state if we ran into an error. */ - if (p->state == GMON_PROF_ERROR) - return; - - if (mode) - { - /* start */ - profil((void *) p->kcount, p->kcountsize, p->lowpc, s_scale); - p->state = GMON_PROF_ON; - } - else - { - /* stop */ - profil(NULL, 0, 0, 0); - p->state = GMON_PROF_OFF; - } -} - - -void monstartup (u_long lowpc, u_long highpc) -{ - register int o; - char *cp; - struct gmonparam *p = &_gmonparam; - - /* - * round lowpc and highpc to multiples of the density we're using - * so the rest of the scaling (here and in gprof) stays in ints. - */ - p->lowpc = ROUNDDOWN(lowpc, HISTFRACTION * sizeof(HISTCOUNTER)); - p->highpc = ROUNDUP(highpc, HISTFRACTION * sizeof(HISTCOUNTER)); - p->textsize = p->highpc - p->lowpc; - p->kcountsize = p->textsize / HISTFRACTION; - p->hashfraction = HASHFRACTION; - p->log_hashfraction = -1; - /* The following test must be kept in sync with the corresponding - test in mcount.c. */ - if ((HASHFRACTION & (HASHFRACTION - 1)) == 0) { - /* if HASHFRACTION is a power of two, mcount can use shifting - instead of integer division. Precompute shift amount. */ - p->log_hashfraction = ffs(p->hashfraction * sizeof(*p->froms)) - 1; - } - p->fromssize = p->textsize / HASHFRACTION; - p->tolimit = p->textsize * ARCDENSITY / 100; - if (p->tolimit < MINARCS) - p->tolimit = MINARCS; - else if (p->tolimit > MAXARCS) - p->tolimit = MAXARCS; - p->tossize = p->tolimit * sizeof(struct tostruct); - - cp = calloc (p->kcountsize + p->fromssize + p->tossize, 1); - if (! cp) - { - ERR("monstartup: out of memory\n"); - p->tos = NULL; - p->state = GMON_PROF_ERROR; - return; - } - p->tos = (struct tostruct *)cp; - cp += p->tossize; - p->kcount = (HISTCOUNTER *)cp; - cp += p->kcountsize; - p->froms = (ARCINDEX *)cp; - - p->tos[0].link = 0; - - o = p->highpc - p->lowpc; - if (p->kcountsize < (u_long) o) - { -#ifndef hp300 - s_scale = ((float)p->kcountsize / o ) * SCALE_1_TO_1; -#else - /* avoid floating point operations */ - int quot = o / p->kcountsize; - - if (quot >= 0x10000) - s_scale = 1; - else if (quot >= 0x100) - s_scale = 0x10000 / quot; - else if (o >= 0x800000) - s_scale = 0x1000000 / (o / (p->kcountsize >> 8)); - else - s_scale = 0x1000000 / ((o << 8) / p->kcountsize); -#endif - } else - s_scale = SCALE_1_TO_1; - - moncontrol(1); -} - - -/* Return frequency of ticks reported by profil. */ -static int profile_frequency (void) -{ - /* - * Discover the tick frequency of the machine if something goes wrong, - * we return 0, an impossible hertz. - */ - struct itimerval tim; - - tim.it_interval.tv_sec = 0; - tim.it_interval.tv_usec = 1; - tim.it_value.tv_sec = 0; - tim.it_value.tv_usec = 0; - setitimer(ITIMER_REAL, &tim, 0); - setitimer(ITIMER_REAL, 0, &tim); - if (tim.it_interval.tv_usec < 2) - return 0; - return (1000000 / tim.it_interval.tv_usec); -} - - -static void write_hist (int fd) -{ - u_char tag = GMON_TAG_TIME_HIST; - struct gmon_hist_hdr thdr __attribute__ ((aligned (__alignof__ (char *)))); - - if (_gmonparam.kcountsize > 0) - { - struct iovec iov[3] = - { - { &tag, sizeof (tag) }, - { &thdr, sizeof (struct gmon_hist_hdr) }, - { _gmonparam.kcount, _gmonparam.kcountsize } - }; - - *(char **) thdr.low_pc = (char *) _gmonparam.lowpc; - *(char **) thdr.high_pc = (char *) _gmonparam.highpc; - *(int32_t *) thdr.hist_size = (_gmonparam.kcountsize - / sizeof (HISTCOUNTER)); - *(int32_t *) thdr.prof_rate = profile_frequency (); - strncpy (thdr.dimen, "seconds", sizeof (thdr.dimen)); - thdr.dimen_abbrev = 's'; - - writev (fd, iov, 3); - } -} - - -static void write_call_graph (int fd) -{ -#define NARCS_PER_WRITEV 32 - u_char tag = GMON_TAG_CG_ARC; - struct gmon_cg_arc_record raw_arc[NARCS_PER_WRITEV] - __attribute__ ((aligned (__alignof__ (char*)))); - ARCINDEX from_index, to_index, from_len; - u_long frompc; - struct iovec iov[2 * NARCS_PER_WRITEV]; - int nfilled; - - for (nfilled = 0; nfilled < NARCS_PER_WRITEV; ++nfilled) - { - iov[2 * nfilled].iov_base = &tag; - iov[2 * nfilled].iov_len = sizeof (tag); - - iov[2 * nfilled + 1].iov_base = &raw_arc[nfilled]; - iov[2 * nfilled + 1].iov_len = sizeof (struct gmon_cg_arc_record); - } - - nfilled = 0; - from_len = _gmonparam.fromssize / sizeof (*_gmonparam.froms); - for (from_index = 0; from_index < from_len; ++from_index) - { - if (_gmonparam.froms[from_index] == 0) - continue; - - frompc = _gmonparam.lowpc; - frompc += (from_index * _gmonparam.hashfraction - * sizeof (*_gmonparam.froms)); - for (to_index = _gmonparam.froms[from_index]; - to_index != 0; - to_index = _gmonparam.tos[to_index].link) - { - struct arc - { - char *frompc; - char *selfpc; - int32_t count; - } - arc; - - arc.frompc = (char *) frompc; - arc.selfpc = (char *) _gmonparam.tos[to_index].selfpc; - arc.count = _gmonparam.tos[to_index].count; - memcpy (raw_arc + nfilled, &arc, sizeof (raw_arc [0])); - - if (++nfilled == NARCS_PER_WRITEV) - { - writev (fd, iov, 2 * nfilled); - nfilled = 0; - } - } - } - if (nfilled > 0) - writev (fd, iov, 2 * nfilled); -} - - -static void write_bb_counts (int fd) -{ - struct __bb *grp; - u_char tag = GMON_TAG_BB_COUNT; - size_t ncounts; - size_t i; - - struct iovec bbhead[2] = - { - { &tag, sizeof (tag) }, - { &ncounts, sizeof (ncounts) } - }; - struct iovec bbbody[8]; - size_t nfilled; - - for (i = 0; i < (sizeof (bbbody) / sizeof (bbbody[0])); i += 2) - { - bbbody[i].iov_len = sizeof (grp->addresses[0]); - bbbody[i + 1].iov_len = sizeof (grp->counts[0]); - } - - /* Write each group of basic-block info (all basic-blocks in a - compilation unit form a single group). */ - - for (grp = __bb_head; grp; grp = grp->next) - { - ncounts = grp->ncounts; - writev (fd, bbhead, 2); - for (nfilled = i = 0; i < ncounts; ++i) - { - if (nfilled > (sizeof (bbbody) / sizeof (bbbody[0])) - 2) - { - writev (fd, bbbody, nfilled); - nfilled = 0; - } - - bbbody[nfilled++].iov_base = (char *) &grp->addresses[i]; - bbbody[nfilled++].iov_base = &grp->counts[i]; - } - if (nfilled > 0) - writev (fd, bbbody, nfilled); - } -} - - -static void write_gmon (void) -{ - struct gmon_hdr ghdr __attribute__ ((aligned (__alignof__ (int)))); - int fd = -1; - char *env; - -#ifndef O_NOFOLLOW -# define O_NOFOLLOW 0 -#endif - - env = getenv ("GMON_OUT_PREFIX"); - if (env != NULL -#if 0 - && !__libc_enable_secure -#endif - ) - { - size_t len = strlen (env); - char buf[len + 20]; - sprintf (buf, "%s.%u", env, getpid ()); - fd = open (buf, O_CREAT|O_TRUNC|O_WRONLY|O_NOFOLLOW, 0666); - } - - if (fd == -1) - { - fd = open ("gmon.out", O_CREAT|O_TRUNC|O_WRONLY|O_NOFOLLOW, 0666); - if (fd < 0) - { - char buf[300]; - int errnum = errno; - fprintf (stderr, "_mcleanup: gmon.out: %s\n", - strerror_r (errnum, buf, sizeof buf)); - return; - } - } - - /* write gmon.out header: */ - memset (&ghdr, '\0', sizeof (struct gmon_hdr)); - memcpy (&ghdr.cookie[0], GMON_MAGIC, sizeof (ghdr.cookie)); - *(int32_t *) ghdr.version = GMON_VERSION; - write (fd, &ghdr, sizeof (struct gmon_hdr)); - - /* write PC histogram: */ - write_hist (fd); - - /* write call-graph: */ - write_call_graph (fd); - - /* write basic-block execution counts: */ - write_bb_counts (fd); - - close (fd); -} - - -void write_profiling (void) -{ - int save = _gmonparam.state; - _gmonparam.state = GMON_PROF_OFF; - if (save == GMON_PROF_ON) - write_gmon (); - _gmonparam.state |