GNU bug report logs - #49113
aarch64-linux-gnu cross-compiler fails to build [core-updates]

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Package: guix;

Reported by: Maxime Devos <maximedevos <at> telenet.be>

Date: Sat, 19 Jun 2021 10:48:01 UTC

Severity: normal

Done: Ludovic Courtès <ludo <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Maxime Devos <maximedevos <at> telenet.be>
To: 49113 <at> debbugs.gnu.org
Subject: bug#49113: aarch64-linux-gnu cross-compiler fails to build [core-updates]
Date: Sun, 20 Jun 2021 14:17:14 +0200

[Message part 1 (text/plain, inline)]
About 0x00000150 vs 0x00000011:

0x00000150 means D_PAGED | DYNAMIC | HAS_SYM
and 0x00000011 means HAS_SYMS | HAS_RELOC

Here, (from bfd/bfd-in2.h in binutils sources)

  /* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
     linker sets this by default, but clears it for -r or -n or -N).  */
  #define D_PAGED

  /* BFD contains relocation entries.  */
  #define HAS_RELOC                   0x1

  /* BFD is a dynamic object.  */
  #define DYNAMIC                    0x40

I believe this is a dead end.
Writing "int r(void){return 0;}" to a.c
and running "gcc -c -shared -fpic a.c" on my x86_64
and "objdump -x a.o", I see

architecture: i386:x86-64, flags 0x00000011:
HAS_RELOC, HAS_SYMS
start address 0x0000000000000000

(The flags are identical)

Greetings,
Maxime.

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