Debian Bug report logs - #35524
ltrace lacks sparc support

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Adam Di Carlo <aph@debian.org>

To: submit@bugs.debian.org

Cc: wakkerma@debian.org

Subject: [PATCH] compilation on sparc(sun4u)

Date: 03 Apr 1999 19:43:26 -0500

Package: ltrace
Version: 0.3.6

Included is a patch to enable compilation on the sparc. I've flattened
sparc64 with just sparc, since sun4u just runs 32 bit userland all
around at this point.

Note that the resulting binary does *not* function, but hangs:

> gdb ltrace
[...]
(gdb) run expr 1 + 1
Starting program: /amnt/burrito-uld/port/ltrace-0.3.6/ltrace expr 1 + 1
warning: Unable to find dynamic linker breakpoint function.
warning: GDB will be unable to debug shared library initializers
warning: and track explicitly loaded dynamic code.

Program received signal SIGINT, Interrupt.
(gdb) where
#0  0x700db660 in umount ()
#1  0x700d6408 in ptrace ()
#2  0x11030 in get_instruction_pointer (pid=12138) at regs.c:11
#3  0x1416c in wait_for_something () at wait_for_something.c:99
#4  0x11518 in main (argc=5, argv=0xeffff7e8) at ltrace.c:61
#5  0x70045420 in   ()

I'm not a manly enough C programmer to fix this.  Sorry.

--
.....Adam Di Carlo....adam@onShore.com.....<URL:http://www.onShore.com/>

diff -Nur ltrace-0.3.6.orig/debian/rules ltrace-0.3.6/debian/rules
--- ltrace-0.3.6.orig/debian/rules	Wed Sep 23 04:38:00 1998
+++ ltrace-0.3.6/debian/rules	Sat Apr  3 18:57:39 1999
@@ -44,7 +44,7 @@
 clean:
 		$(checkdir)
 		$(RM) -f build debian/files debian/substvars
-		$(MAKE) distclean || $(MAKE) -f Makefile.in distclean
+		$(MAKE) distclean || $(MAKE) -f Makefile.in distclean || true
 		$(RM) -rf debian/tmp
 
 define checkdir
diff -Nur ltrace-0.3.6.orig/ltrace.spec ltrace-0.3.6/ltrace.spec
--- ltrace-0.3.6.orig/ltrace.spec	Thu Sep 24 07:50:14 1998
+++ ltrace-0.3.6/ltrace.spec	Sat Apr  3 19:11:17 1999
@@ -1,6 +1,6 @@
 Summary: A library call tracer
 Name: ltrace
-%define version 0.3.5
+%define version 0.3.6
 Version: %{version}
 Release: 1
 Copyright: GPL
diff -Nur ltrace-0.3.6.orig/sysdeps/Linux/Makefile ltrace-0.3.6/sysdeps/Linux/Makefile
--- ltrace-0.3.6.orig/sysdeps/Linux/Makefile	Thu Sep 24 07:38:46 1998
+++ ltrace-0.3.6/sysdeps/Linux/Makefile	Sat Apr  3 18:59:59 1999
@@ -1,4 +1,4 @@
-ARCH	:=	$(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
+ARCH	:=	$(shell uname -m | sed -e s/i.86/i386/ -e s/sparc64/sparc/ -e s/arm.*/arm/ -e s/sa110/arm/)
 
 CFLAGS	+=	-I$(TOPDIR)/sysdeps/Linux/$(ARCH)
 
Binary files ltrace-0.3.6.orig/sysdeps/Linux/m68k/.trace.c.swp and ltrace-0.3.6/sysdeps/Linux/m68k/.trace.c.swp differ
Binary files ltrace-0.3.6.orig/sysdeps/Linux/sparc/.trace.c.swp and ltrace-0.3.6/sysdeps/Linux/sparc/.trace.c.swp differ
diff -Nur ltrace-0.3.6.orig/sysdeps/Linux/sparc/regs.c ltrace-0.3.6/sysdeps/Linux/sparc/regs.c
--- ltrace-0.3.6.orig/sysdeps/Linux/sparc/regs.c	Fri Sep 25 06:54:45 1998
+++ ltrace-0.3.6/sysdeps/Linux/sparc/regs.c	Sat Apr  3 19:04:15 1999
@@ -4,6 +4,7 @@
 
 #include <sys/types.h>
 #include <sys/ptrace.h>
+#include <asm/ptrace.h>
 
 void * get_instruction_pointer(pid_t pid)
 {
diff -Nur ltrace-0.3.6.orig/sysdeps/Linux/sparc/trace.c ltrace-0.3.6/sysdeps/Linux/sparc/trace.c
--- ltrace-0.3.6.orig/sysdeps/Linux/sparc/trace.c	Fri Sep 25 06:15:50 1998
+++ ltrace-0.3.6/sysdeps/Linux/sparc/trace.c	Sat Apr  3 19:11:05 1999
@@ -4,19 +4,19 @@
 
 #include <sys/types.h>
 #include <sys/wait.h>
-#include <signal.h>
 #include <sys/ptrace.h>
+#include <signal.h>
 
 #include "ltrace.h"
 
 /* Returns syscall number if `pid' stopped because of a syscall.
  * Returns -1 otherwise
  */
-int syscall_p(pid_t pid, int status)
+int syscall_p(struct process * proc, int status, int * sysnum)
 {
 #if 0
 	if (WIFSTOPPED(status) && WSTOPSIG(status)==SIGTRAP) {
-		int tmp = ptrace(PTRACE_PEEKUSER, pid, 4*ORIG_EAX);
+		int tmp = ptrace(PTRACE_PEEKUSER, proc, 4*ORIG_EAX);
 		if (tmp>=0) {
 			return tmp;
 		}
@@ -68,3 +68,27 @@
 #endif
 	return 0;
 }
+
+
+int umovestr(struct process * proc, void * addr, int len, void * laddr)
+{
+	long a;
+	int i;
+	int offset=0;
+
+	while(offset<len) {
+		a = ptrace(PTRACE_PEEKTEXT, proc->pid, addr+offset, 0);
+		for(i=0; i<sizeof(long); i++) {
+			if (((char*)&a)[i] && offset+i < len) {
+				*(char *)(laddr+offset+i) = ((char*)&a)[i];
+			} else {
+				*(char *)(laddr+offset+i) = '\0';
+				return 0;
+			}
+		}
+		offset += sizeof(long);
+	}
+	*(char *)(laddr+offset) = '\0';
+	return 0;
+}
+
diff -Nur ltrace-0.3.6.orig/sysdeps/Linux/sparc/trace.c~ ltrace-0.3.6/sysdeps/Linux/sparc/trace.c~
--- ltrace-0.3.6.orig/sysdeps/Linux/sparc/trace.c~	Wed Dec 31 19:00:00 1969
+++ ltrace-0.3.6/sysdeps/Linux/sparc/trace.c~	Sat Apr  3 19:08:39 1999
@@ -0,0 +1,70 @@
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/ptrace.h>
+#include <signal.h>
+
+#include "ltrace.h"
+
+/* Returns syscall number if `pid' stopped because of a syscall.
+ * Returns -1 otherwise
+ */
+int syscall_p(struct process * proc, int status, int * sysnum)
+{
+#if 0
+	if (WIFSTOPPED(status) && WSTOPSIG(status)==SIGTRAP) {
+		int tmp = ptrace(PTRACE_PEEKUSER, proc, 4*ORIG_EAX);
+		if (tmp>=0) {
+			return tmp;
+		}
+	}
+#endif
+	return -1;
+}
+
+void continue_after_breakpoint(struct process *proc, struct breakpoint * sbp, int delete_it)
+{
+	delete_breakpoint(proc->pid, sbp);
+	ptrace(PTRACE_POKEUSER, proc->pid, PT_PC, sbp->addr);
+	if (delete_it) {
+		continue_process(proc->pid);
+	} else {
+		proc->breakpoint_being_enabled = sbp;
+		ptrace(PTRACE_SINGLESTEP, proc->pid, 0, 0);
+	}
+}
+
+long gimme_arg(enum tof type, struct process * proc, int arg_num)
+{
+#if 0
+	if (arg_num==-1) {		/* return value */
+		return ptrace(PTRACE_PEEKUSER, proc->pid, 4*EAX);
+	}
+
+	if (type==LT_TOF_FUNCTION) {
+		return ptrace(PTRACE_PEEKTEXT, proc->pid, proc->stack_pointer+4*(arg_num+1));
+	} else if (type==LT_TOF_SYSCALL) {
+#if 0
+		switch(arg_num) {
+			case 0:	return ptrace(PTRACE_PEEKUSER, proc->pid, 4*EBX);
+			case 1:	return ptrace(PTRACE_PEEKUSER, proc->pid, 4*ECX);
+			case 2:	return ptrace(PTRACE_PEEKUSER, proc->pid, 4*EDX);
+			case 3:	return ptrace(PTRACE_PEEKUSER, proc->pid, 4*ESI);
+			case 4:	return ptrace(PTRACE_PEEKUSER, proc->pid, 4*EDI);
+			default:
+				fprintf(stderr, "gimme_arg called with wrong arguments\n");
+				exit(2);
+		}
+#else
+		return ptrace(PTRACE_PEEKUSER, proc->pid, 4*arg_num);
+#endif
+	} else {
+		fprintf(stderr, "gimme_arg called with wrong arguments\n");
+		exit(1);
+	}
+#endif
+	return 0;
+}

Message #10 received at 35524@bugs.debian.org (full text, mbox, reply):

From: Juan Cespedes <cespedes@debian.org>

To: Adam Di Carlo <aph@debian.org>, 35524@bugs.debian.org

Cc: Wichert Akkerman <wakkerma@debian.org>

Subject: Re: Bug#35524: [PATCH] compilation on sparc(sun4u)

Date: Mon, 5 Apr 1999 12:05:23 +0200

On Sat, Apr 03, 1999 at 07:43:26PM -0500, Adam Di Carlo wrote:
> 
> Package: ltrace
> Version: 0.3.6
> 
> Included is a patch to enable compilation on the sparc. I've flattened
> sparc64 with just sparc, since sun4u just runs 32 bit userland all
> around at this point.

Thank you.  Unfortunately, I've just uploaded a new version of ltrace
_without_ Sparc support :(

> Note that the resulting binary does *not* function, but hangs:

OK, I'll look at it and tell you if I can make it work.

-- 
Juan Cespedes

Message #19 received at 35524-close@bugs.debian.org (full text, mbox, reply):

From: Juan Cespedes <cespedes@debian.org>

To: 35524-close@bugs.debian.org

Subject: Bug#35524: fixed in ltrace 0.3.34

Date: Wed, 07 Jul 2004 05:02:03 -0400

Source: ltrace
Source-Version: 0.3.34

We believe that the bug you reported is fixed in the latest version of
ltrace, which is due to be installed in the Debian FTP archive:

ltrace_0.3.34.dsc
  to pool/main/l/ltrace/ltrace_0.3.34.dsc
ltrace_0.3.34.tar.gz
  to pool/main/l/ltrace/ltrace_0.3.34.tar.gz
ltrace_0.3.34_i386.deb
  to pool/main/l/ltrace/ltrace_0.3.34_i386.deb



A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 35524@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Juan Cespedes <cespedes@debian.org> (supplier of updated ltrace package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Format: 1.7
Date: Wed, 07 Jul 2004 10:40:56 +0200
Source: ltrace
Binary: ltrace
Architecture: source i386
Version: 0.3.34
Distribution: unstable
Urgency: low
Maintainer: Juan Cespedes <cespedes@debian.org>
Changed-By: Juan Cespedes <cespedes@debian.org>
Description: 
 ltrace     - Tracks runtime library calls in dynamically linked programs
Closes: 35524 252756
Changes: 
 ltrace (0.3.34) unstable; urgency=low
 .
   * Fixed prototype declaration problem in arm, m68k, powerpc, s390
   * Added "amd64" to list of architectures        (closes: Bug#252756)
   * Sparc port is hopefully working               (closes: Bug#35524)
Files: 
 254c897e73a3de23314486ad0e06df18 524 utils optional ltrace_0.3.34.dsc
 ea0edc11d2f01edd60d1de9e7cce71f7 95225 utils optional ltrace_0.3.34.tar.gz
 268f6e1f82f57f262f610dcf7b0f5463 61486 utils optional ltrace_0.3.34_i386.deb

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