New verson of CLiB2 from Andrea (afxgroup)

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afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2022/9/20 13:52 #121

Amigans Defender

check discord

i'm really tired...

rjd324

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2022/9/20 16:10 #122

Quite a regular

@afxgroup

Your ncurses:
https://github.com/afxgroup/ncurses6.3

I do not see any instructions for building for Amiga.

Have tried to configure --host/build etc, but to no avail.

What am I missing?

If liberty means anything at all, it means the right to tell people what they do not want to hear.
George Orwell.

afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2022/9/21 11:06 #123

Amigans Defender

use this:

./configure --host=ppc-amigaos --prefix=/usr/ppc-amigaos/SDK/local/clib2 CFLAGS="-O3 -mcrt=clib2 -gstabs" CPPFLAGS="-mcrt=clib2 CXXFLAGS=-O3 -mcrt=clib2 -gstabs" LDFLAGS="-mcrt=clib2 -athread=native" --without-dlsym --without-ada --with-termpath=ENV:termcap.os4 --disable-db-install --without-manpages -disable-rpath-hack --enable-getcap --disable-stripping --enable-termcap --enable-wgetch-events --enable-sigwinch --with-terminfo-dirs=ENVARC:terminfo --with-default-terminfo-dir=ENVARC:terminfo

check that prefix matches your adtools installation

i'm really tired...

rjd324

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2022/9/21 19:51 #124

Quite a regular

@afxgroup

Thanks, but when using those configure options, that still does not stop my build machine (linux machine) from invoking (ncurses/tinfo/MKcaptab.sh:74):


cat "$@" |./make_hash 1 info $OPT1

Where, of course, "make_hash" is a PPC binary.

You are still doing something different to me.

Thanks.

If liberty means anything at all, it means the right to tell people what they do not want to hear.
George Orwell.

afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2022/9/22 15:21 #125

Amigans Defender

try an autoreconf -i first

i'm really tired...

kas1e

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2022/11/5 10:09 #126

Home away from home

@Andrea
Is it expected that we still missing libauto.a in the released archives of all betas ?

Join us to improve dopus5!
AmigaOS4 on youtube

Hypex

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2022/11/5 12:30 #127

Not too shy to talk

Will this make it into the SDK once there is a stable release?

afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/19 14:00 #128

Amigans Defender

Beta 8 released and changes merged into master

https://github.com/afxgroup/clib2/releases/tag/v1.0.0-beta-8

i'm really tired...

kas1e

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/19 20:16 #129

Home away from home

@afxgroup
I can be wrong, but seems we again miss the libauto.a in beta8 ?

Join us to improve dopus5!
AmigaOS4 on youtube

joerg

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/19 21:36 #130

Home away from home

@kas1e
Quote:

I can be wrong, but seems we again miss the libauto.a in beta8 ?

libauto.(a|so) doesn't have any C library dependencies, i.e. you can use a libauto.(a|so) included in newlib distributions with clib2, and the other way round.

afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/20 9:05 #131

Amigans Defender

@kas1e
package updated

i'm really tired...

afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/25 18:54 #132

Amigans Defender

I've just push some changes that should (read more..) fix the shared objects problem. But something really strange happens.

Basically if I compile the library with DEBUG=true (means serial output) everything works correctly, while if I disable debug I have a DSI in printf (or however no output) when it try to use stdout because the f->position has a wrong value.
I mean if i use static linking or shared libc.so with DEBUG on f->position is zero. If I use libc.so with NO DEBUG f->position is 3539005. I'm pretty sure that position is zero when iob is initialized (there is a memset) but i've also forced all positions fields to zero..
I've checked inside #ifdef DEBUG and there is nothing that can be related to iob..
Which weird amigaos animal can cause this?

i'm really tired...

elfpipe

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/25 20:10 #133

Just can't stay away

@afxgroup

Quote:

... while if I disable debug I have a DSI ...

Well, obviously something is responsible for either setting the value, or you have overlooked something? If you set it to zero (0) just before it is used, what happens then?

EDIT : Since it works (...) with static link, then perhaps it is a constructor issue, that we overlooked?

Are you using still .ctors, or have you progressed to .init_array? Remember, there is also .pre_init_array, and this is not implemented. Neither is .init_array for the main executable.

afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/26 8:29 #134

Amigans Defender

No i'm still using .ctors/.dtors.But it works not only with static but also with shared objects if I enable debug with serial output.. If I remove the debug, it isn't working.

i'm really tired...

elfpipe

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/26 8:38 #135

Just can't stay away

@afxgroup

Maybe an -fPIC issue? I am having trouble picturing the problem, when I don't know, what your code looks like.

The .ctors/.dtors code is quite solid now, so I doubt, that the problem is here. There could be some strange link problem, that we don't know about yet.

afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/26 8:44 #136

Amigans Defender

.ctors/.dtors are not a problem anymore. The constructors are called without any problem and even main().
I think it is an alignment problem somewhere because all fields in FILE* pointer are totally wrong. But this happens only when DEBUG is off that maybe realign the structs in some way.

i'm really tired...

elfpipe

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/26 8:56 #137

Just can't stay away

@afxgroup

Sure. I took about 1 1/2 year (one-and-a-half year) to solve the pointer equality issue. Maybe you can do it a little faster? ;-D

I am here to support, if you pinpoint a problem with the binary loader.

afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/26 8:59 #138

Amigans Defender

Well.. forget what I've said.. I've just added some Printf (since we don't have a debugger and it is a pain..) just after iob is initialized (inside FILE_CONSTRUCTOR) and I never reach that part.. I've tried also adding an exit(1) in the same part and it is never reached..
Then i've recompiled everything with DEBUG=true and i get the Printf (with correct zero value) and even the exit(1)
So the file is uinitialized with no debug because the file constructor is not called and that's why I have the problem.
Of course I can't debug it because no serial output..

i'm really tired...

elfpipe

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/26 9:10 #139

Just can't stay away

@afxgroup

How is the file constructor instantiated? Can you post the code here?

Quote:

Of course I can't debug it because no serial output..

Sashimi??

afxgroup

Re: New verson of CLiB2 from Andrea (afxgroup)

Posted on: 2023/2/26 9:19 #140

Amigans Defender


readelf -S libc.so 

There are 43 section headers, starting at offset 0x24ded0:



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  L (link order), O (extra OS processing required), G (group), T (TLS),

  C (compressed), x (unknown), o (OS specific), E (exclude),

  v (VLE), p (processor specific)

  

readelf -S printf

There are 38 section headers, starting at offset 0x1b258:



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Key to Flags:

  W (write), A (alloc), X (execute), M (merge), S (strings), I (info),

  L (link order), O (extra OS processing required), G (group), T (TLS),

  C (compressed), x (unknown), o (OS specific), E (exclude),

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readelf -S libc.so 

There are 43 section headers, starting at offset 0x2981d8:



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  [35] .stab             PROGBITS        00000000 0d2758 0f1d64 0c     37   0  4

  [36] .rela.stab        RELA            00000000 2c3f94 00beb0 0c     41  35  4

  [37] .stabstr          STRTAB          00000000 1c44bc 0d3be2 00      0   0  1

  [38] .comment          PROGBITS        00000000 29809e 000023 01  MS  0   0  1

  [39] .gnu.attributes   GNU_ATTRIBUTES  00000000 2980c1 000012 00      0   0  1

  [40] .shstrtab         STRTAB          00000000 2980d3 000105 00      0   0  1

  [41] .symtab           SYMTAB          00000000 2cfe44 00c110 10     42 2001  4

  [42] .strtab           STRTAB          00000000 2dbf54 0068fc 00      0   0  1

Key to Flags:

  W (write), A (alloc), X (execute), M (merge), S (strings), I (info),

  L (link order), O (extra OS processing required), G (group), T (TLS),

  C (compressed), x (unknown), o (OS specific), E (exclude),

  v (VLE), p (processor specific)



readelf -S printf

There are 38 section headers, starting at offset 0x1b258:



Section Headers:

  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al

  [ 0]                   NULL            00000000 000000 000000 00      0   0  0

  [ 1] .interp           PROGBITS        010000f4 0000f4 000011 00   A  0   0  1

  [ 2] .hash             HASH            01000108 000108 0000b0 04   A  3   0  4

  [ 3] .dynsym           DYNSYM          010001b8 0001b8 000190 10   A  4   1  4

  [ 4] .dynstr           STRTAB          01000348 000348 000143 00   A  0   0  1

  [ 5] .rela.bss         RELA            0100048c 00048c 000018 0c   A  3  17  4

  [ 6] .rela.plt         RELA            010004a4 0004a4 000048 0c   A  3   9  4

  [ 7] .text             PROGBITS        010004ec 0004ec 001b40 00  AX  0   0  4

  [ 8] .rela.text        RELA            00000000 01b848 000b28 0c     36   7  4

  [ 9] .plt              NOBITS          01003000 00202c 000090 00  AX  0   0  4

  [10] .rodata           PROGBITS        01004000 004000 000092 00   A  0   0  4

  [11] .eh_frame         PROGBITS        01004094 004094 000000 00   A  0   0  4

  [12] .ctors            PROGBITS        01014094 004094 000004 00  WA  0   0  4

  [13] .dtors            PROGBITS        01014098 004098 000004 00  WA  0   0  4

  [14] .dynamic          DYNAMIC         0101409c 00409c 0000b0 08  WA  4   0  4

  [15] .data             PROGBITS        0101414c 00414c 000000 00  WA  0   0  1

  [16] .got              PROGBITS        0101414c 00414c 000010 04  WA  0   0  4

  [17] .bss              NOBITS          0101415c 00415c 000034 00  WA  0   0  4

  [18] .stab             PROGBITS        00000000 00415c 0005f4 0c     20   0  4

  [19] .rela.stab        RELA            00000000 01c370 000090 0c     36  18  4

  [20] .stabstr          STRTAB          00000000 004750 0047c3 00      0   0  1

  [21] .comment          PROGBITS        00000000 008f13 000023 01  MS  0   0  1

  [22] .debug_aranges    PROGBITS        00000000 008f36 000020 00      0   0  1

  [23] .rela.debug_arang RELA            00000000 01c400 000018 0c     36  22  4

  [24] .debug_info       PROGBITS        00000000 008f56 00a913 00      0   0  1

  [25] .rela.debug_info  RELA            00000000 01c418 006b70 0c     36  24  4

  [26] .debug_abbrev     PROGBITS        00000000 013869 0005cb 00      0   0  1

  [27] .debug_line       PROGBITS        00000000 013e34 0014cc 00      0   0  1

  [28] .rela.debug_line  RELA            00000000 022f88 00000c 0c     36  27  4

  [29] .debug_frame      PROGBITS        00000000 015300 000634 00      0   0  4

  [30] .rela.debug_frame RELA            00000000 022f94 000348 0c     36  29  4

  [31] .debug_str        PROGBITS        00000000 015934 004cbe 01  MS  0   0  1

  [32] .debug_loclists   PROGBITS        00000000 01a5f2 000a4b 00      0   0  1

  [33] .rela.debug_locli RELA            00000000 0232dc 000024 0c     36  32  4

  [34] .debug_rnglists   PROGBITS        00000000 01b03d 0000eb 00      0   0  1

  [35] .shstrtab         STRTAB          00000000 01b128 00012f 00      0   0  1

  [36] .symtab           SYMTAB          00000000 023300 000600 10     37  51  4

  [37] .strtab           STRTAB          00000000 023900 00044d 00      0   0  1

Key to Flags:

  W (write), A (alloc), X (execute), M (merge), S (strings), I (info),

  L (link order), O (extra OS processing required), G (group), T (TLS),

  C (compressed), x (unknown), o (OS specific), E (exclude),

  v (VLE), p (processor specific)

This is the objdump -S of libc.so and printf without and with DEBUG. Sections are the same. printf exe is the same in address, size and offset. I don't understand what can be different between one an another. The only difference that is present in two builds is the DEBUG flag. I've also added -gstabs to the non-debug version just to be sure that it wasn't the problem..

Constructors are created in this way now:

#define CONSTRUCTOR(name, pri) \
static void __attribute__((used, constructor(pri))) name##_ctor(VOID); \
static void (*__##name##_ctor)(void) = name##_ctor; \
static void name##_ctor(void)

#define DESTRUCTOR(name, pri) \
static void __attribute__((used, destructor(pri))) name##_dtor(VOID); \
static void (*__##name##_dtor)(void) = name##_dtor; \
static void name##_dtor(void)

But I can revert to the original version that was using .ctors/.dtors sections

i'm really tired...

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