[Bug 1398143] Re: Ltrace is broken on ppc64el
Martin Pitt
martin.pitt at ubuntu.com
Fri Jul 1 06:47:16 UTC 2016
Stalled, see bug 1547152
** Changed in: ltrace (Ubuntu Trusty)
Status: In Progress => Incomplete
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https://bugs.launchpad.net/bugs/1398143
Title:
Ltrace is broken on ppc64el
Status in ltrace package in Ubuntu:
Fix Released
Status in ltrace source package in Trusty:
Incomplete
Status in ltrace source package in Wily:
Won't Fix
Bug description:
[Impact]
ppc64el users of ltrace.
[Test cases]
- ltrace `which ls`
- ltrace /bin/ls /usr
- ltrace ps
- ltrace make (building ltrace itself, for instance)
[Regression potential]
While the changes should fix some of the more common uses of ltrace, the added/modified methods and options may break for some specific calls on ppc64el, or on other architectures (powerpc, arm) which are affected by the changes.
ARM was already failing with the available version of ltrace; this
would not change the behavior on ARM.
---
ltrace is not working properly on Ubuntu 15.04 ppc64el.
Example:
ubuntu at ubuntu1504:~$ ltrace `which ls`
__printf_chk(1, 0x3fffd36dce78, 0x3fffd36dce88, 0x3fffd36dcf28 <unfinished ...>
...
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++
There is a patch that fixes this issue:
http://lists.alioth.debian.org/pipermail/ltrace-
devel/2014-February/001027.html
In order to get the ppc64el, the idea is to get the upstream tree and do a reset until commit eea4ad2cce289753aaa35b4e0258a76d8f8f367c
That would allow to create a patch of 27514 lines
ppc64el_support:--- ltrace-0.7.3.orig/CREDITS
ppc64el_support:--- ltrace-0.7.3.orig/Makefile.am
ppc64el_support:--- ltrace-0.7.3.orig/NEWS
ppc64el_support:--- ltrace-0.7.3.orig/README
ppc64el_support:--- ltrace-0.7.3.orig/TODO
ppc64el_support:--- ltrace-0.7.3.orig/backend.h
ppc64el_support:--- ltrace-0.7.3.orig/breakpoint.h
ppc64el_support:--- ltrace-0.7.3.orig/breakpoints.c
ppc64el_support:--- ltrace-0.7.3.orig/callback.h
ppc64el_support:--- ltrace-0.7.3.orig/common.h
ppc64el_support:--- ltrace-0.7.3.orig/configure.ac
ppc64el_support:--- ltrace-0.7.3.orig/debug.c
ppc64el_support:--- ltrace-0.7.3.orig/debug.h
ppc64el_support:--- ltrace-0.7.3.orig/demangle.c
ppc64el_support:--- ltrace-0.7.3.orig/demangle.h
ppc64el_support:--- ltrace-0.7.3.orig/dict.c
ppc64el_support:--- ltrace-0.7.3.orig/dict.h
ppc64el_support:--- ltrace-0.7.3.orig/execute_program.c
ppc64el_support:--- ltrace-0.7.3.orig/expr.c
ppc64el_support:--- ltrace-0.7.3.orig/expr.h
ppc64el_support:--- ltrace-0.7.3.orig/fetch.c
ppc64el_support:--- ltrace-0.7.3.orig/fetch.h
ppc64el_support:--- ltrace-0.7.3.orig/filter.h
ppc64el_support:--- ltrace-0.7.3.orig/forward.h
ppc64el_support:--- ltrace-0.7.3.orig/glob.c
ppc64el_support:--- ltrace-0.7.3.orig/handle_event.c
ppc64el_support:--- ltrace-0.7.3.orig/lens_default.c
ppc64el_support:--- ltrace-0.7.3.orig/libltrace.c
ppc64el_support:--- ltrace-0.7.3.orig/library.c
ppc64el_support:--- ltrace-0.7.3.orig/library.h
ppc64el_support:--- ltrace-0.7.3.orig/ltrace-elf.c
ppc64el_support:--- ltrace-0.7.3.orig/ltrace-elf.h
ppc64el_support:--- ltrace-0.7.3.orig/ltrace.1
ppc64el_support:--- ltrace-0.7.3.orig/ltrace.conf.5
ppc64el_support:--- ltrace-0.7.3.orig/ltrace.h
ppc64el_support:--- ltrace-0.7.3.orig/options.c
ppc64el_support:--- ltrace-0.7.3.orig/options.h
ppc64el_support:--- ltrace-0.7.3.orig/output.c
ppc64el_support:--- ltrace-0.7.3.orig/output.h
ppc64el_support:--- ltrace-0.7.3.orig/param.c
ppc64el_support:--- ltrace-0.7.3.orig/param.h
ppc64el_support:--- ltrace-0.7.3.orig/printf.c
ppc64el_support:--- ltrace-0.7.3.orig/proc.c
ppc64el_support:--- ltrace-0.7.3.orig/proc.h
ppc64el_support:--- ltrace-0.7.3.orig/read_config_file.c
ppc64el_support:--- ltrace-0.7.3.orig/read_config_file.h
ppc64el_support:--- ltrace-0.7.3.orig/summary.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/Makefile.am
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/alpha/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/alpha/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/alpha/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/arm/Makefile.am
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/arm/arch.h
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/arm/breakpoint.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/arm/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/arm/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/arm/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/breakpoint.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/cris/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/cris/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/cris/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/events.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/events.h
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/ia64/fetch.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/ia64/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/ia64/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/ia64/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/m68k/fetch.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/m68k/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/m68k/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/m68k/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/mips/arch.h
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/mips/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/mips/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/mips/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/os.h
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/ppc/arch.h
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/ppc/fetch.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/ppc/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/ppc/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/ppc/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/proc.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/s390/arch.h
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/s390/fetch.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/s390/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/s390/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/s390/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/sparc/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/sparc/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/sparc/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/trace.h
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/x86/arch.h
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/x86/fetch.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/x86/plt.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/x86/regs.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/linux-gnu/x86/trace.c
ppc64el_support:--- ltrace-0.7.3.orig/sysdeps/sysdep.h
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/Makefile.am
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/lib/ltrace.exp
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.main/Makefile.am
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.main/parameters-lib.c
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.main/parameters.c
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.main/parameters.conf
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.main/parameters.exp
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.main/parameters2.exp
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.main/system_calls.exp
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.minor/Makefile.am
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.minor/trace-clone.c
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.minor/trace-exec.exp
ppc64el_support:--- ltrace-0.7.3.orig/testsuite/ltrace.torture/Makefile.am
ppc64el_support:--- ltrace-0.7.3.orig/type.c
ppc64el_support:--- ltrace-0.7.3.orig/type.h
ppc64el_support:--- ltrace-0.7.3.orig/value.c
ppc64el_support:--- ltrace-0.7.3.orig/value.h
ppc64el_support:--- ltrace-0.7.3.orig/vect.c
ppc64el_support:--- ltrace-0.7.3.orig/vect.h
ppc64el_support:--- ltrace-0.7.3.orig/zero.c
from that stage there is a need to apply a patch to avoid dwarf compilation error:
--- ltrace-0.7.3.orig/dwarf_prototypes.h
+++ ltrace-0.7.3/dwarf_prototypes.h
@@ -1,7 +1,6 @@
#pragma once
#include <stdbool.h>
-#include <elfutils/libdwfl.h>
#include "prototype.h"
#include "library.h"
and a patch to configure.ac
--- ltrace-0.7.3.orig/configure.ac
+++ ltrace-0.7.3/configure.ac
@@ -42,7 +43,7 @@ case "${host_cpu}" in
arm*|sa110) HOST_CPU="arm" ;;
cris*) HOST_CPU="cris" ;;
mips*) HOST_CPU="mips" ;;
- powerpc|powerpc64) HOST_CPU="ppc" ;;
+ powerpc|powerpc64|powerpc64le) HOST_CPU="ppc" ;;
sun4u|sparc64) HOST_CPU="sparc" ;;
s390x) HOST_CPU="s390" ;;
i?86|x86_64) HOST_CPU="x86" ;;
let us know if you want a patch or if you get the source from upstream
It may also be required to backport the following patches:
03-alpha-debug.h
06-unexpected-breakpoint
ptrace.diff
Fix to allow compilation of parameters-hfa.exp is
diff --git a/testsuite/lib/ltrace.exp b/testsuite/lib/ltrace.exp
index 9931794..aa9d240 100644
--- a/testsuite/lib/ltrace.exp
+++ b/testsuite/lib/ltrace.exp
@@ -110,6 +110,7 @@ proc ltrace_compile {source dest type options} {
set result [target_compile $source $dest $type $options];
verbose "result is $result"
+ regsub ".* note: .*$" "$result" "" result;
regsub "\[\r\n\]*$" "$result" "" result;
regsub "^\[\r\n\]*" "$result" "" result;
if { $result != "" && [lsearch $options quiet] == -1} {
Current dev git tree reset to commit :
eea4ad2cce289753aaa35b4e0258a76d8f8f367c
or more recent
bc7551c18a2ea7b3baf51a35396fe642066f02e6
are compiling and tested with only 4 errors.
== Comment: #8 - Thierry Fauck <thierry.fauck at fr.ibm.com> - 2014-11-28 11:06:41 ==
New fix to allow full testing:
diff --git a/sysdeps/linux-gnu/ppc/fetch.c b/sysdeps/linux-gnu/ppc/fetch.c
index c9381c3..5c1dc3a 100644
--- a/sysdeps/linux-gnu/ppc/fetch.c
+++ b/sysdeps/linux-gnu/ppc/fetch.c
@@ -378,7 +378,8 @@ allocate_hfa(struct fetch_context *ctx, struct process *proc
/* Hetereogeneous struct - get value on GPR or stack. */
if (((hfa_type == ARGTYPE_FLOAT
|| hfa_type == ARGTYPE_DOUBLE)
- && hfa_count <= 8))
+ && hfa_count <= 8
+ && ctx->struct_hfa_count <= 8 ))
rc = allocate_float(ctx, proc, hfa_info, &tmp,
slot_off, true);
else
== Comment: #9 - Thierry Fauck <thierry.fauck at fr.ibm.com> - 2014-11-28 11:10:36 ==
As last patch allow full tesing with both sources, changing state
Test Run By root on Fri Nov 28 11:08:10 2014
Native configuration is powerpc64le-unknown-linux-gnu
=== tests ===
Schedule of variations:
unix
Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file for target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for target.
Using ./config/unix.exp as tool-and-target-specific interface file.
Running ./ltrace.main/branch_func.exp ...
Running ./ltrace.main/filters.exp ...
Running ./ltrace.main/hello-vfork.exp ...
Running ./ltrace.main/main-internal.exp ...
Running ./ltrace.main/main-threaded.exp ...
Running ./ltrace.main/main-vfork.exp ...
Running ./ltrace.main/main.exp ...
Running ./ltrace.main/parameters-hfa.exp ...
Running ./ltrace.main/parameters.exp ...
Running ./ltrace.main/parameters2.exp ...
Running ./ltrace.main/parameters3.exp ...
Running ./ltrace.main/signals.exp ...
Running ./ltrace.main/system_call_params.exp ...
Running ./ltrace.main/system_calls.exp ...
Running ./ltrace.minor/attach-process-dlopen.exp ...
Running ./ltrace.minor/attach-process.exp ...
Running ./ltrace.minor/count-record.exp ...
Running ./ltrace.minor/demangle.exp ...
Running ./ltrace.minor/libdl-simple.exp ...
Running ./ltrace.minor/print-instruction-pointer.exp ...
Running ./ltrace.minor/time-record-T.exp ...
Running ./ltrace.minor/time-record-tt.exp ...
Running ./ltrace.minor/time-record-ttt.exp ...
Running ./ltrace.minor/trace-clone.exp ...
Running ./ltrace.minor/trace-exec.exp ...
Running ./ltrace.minor/trace-fork.exp ...
Running ./ltrace.minor/trace-irelative.exp ...
Running ./ltrace.minor/wchar.exp ...
Running ./ltrace.torture/arm-singlestep.exp ...
Running ./ltrace.torture/ia64-sigill.exp ...
Running ./ltrace.torture/ppc-lwarx.exp ...
Running ./ltrace.torture/signals.exp ...
Running ./ltrace.torture/vfork-thread.exp ...
=== Summary ===
# of expected passes 348
# of unsupported tests 1
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