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Add support for NetBSD/sh3 core file sections. Merge multiple copies of auxv section creation into one function.

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PR 24650
	* elf.c (elfcore_make_auxv_note_section): New function.
	(elfcore_grok_note): Use it.
	(elfcore_grok_freebsd_note): Likewise.
	(elfcore_grok_openbsd_note): Likewise.
	(elfcore_grok_netbsd_note): Likewise.  Plus add support for
	NT_NETBSDCORE_AUXV notes.
This commit is contained in:
Christos Zoulas 2019-06-10 14:41:35 +01:00 committed by Nick Clifton
parent 25ce02ee7b
commit 58e07198f3
2 changed files with 57 additions and 39 deletions
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10
bfd/ChangeLog
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@ -1,3 +1,13 @@
2019-06-10 Christos Zoulas <christos@zoulas.com>
PR 24650
* elf.c (elfcore_make_auxv_note_section): New function.
(elfcore_grok_note): Use it.
(elfcore_grok_freebsd_note): Likewise.
(elfcore_grok_openbsd_note): Likewise.
(elfcore_grok_netbsd_note): Likewise. Plus add support for
NT_NETBSDCORE_AUXV notes.
2019-06-06 Sudakshina Das <sudi.das@arm.com>
* elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Set

86
bfd/elf.c
View File

@ -9236,6 +9236,23 @@ _bfd_elfcore_make_pseudosection (bfd *abfd,
return elfcore_maybe_make_sect (abfd, name, sect);
}
static bfd_boolean
elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note,
size_t offs)
{
asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv",
SEC_HAS_CONTENTS);
if (sect == NULL)
return FALSE;
sect->size = note->descsz - offs;
sect->filepos = note->descpos + offs;
sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32;
return TRUE;
}
/* prstatus_t exists on:
solaris 2.5+
linux 2.[01] + glibc
@ -10177,18 +10194,7 @@ elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note)
#endif
case NT_AUXV:
{
asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv",
SEC_HAS_CONTENTS);
if (sect == NULL)
return FALSE;
sect->size = note->descsz;
sect->filepos = note->descpos;
sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32;
return TRUE;
}
return elfcore_make_auxv_note_section (abfd, note, 0);
case NT_FILE:
return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file",
@ -10434,18 +10440,7 @@ elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note)
note);
case NT_FREEBSD_PROCSTAT_AUXV:
{
asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv",
SEC_HAS_CONTENTS);
if (sect == NULL)
return FALSE;
sect->size = note->descsz - 4;
sect->filepos = note->descpos + 4;
sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32;
return TRUE;
}
return elfcore_make_auxv_note_section (abfd, note, 4);
case NT_X86_XSTATE:
if (note->namesz == 8)
@ -10509,17 +10504,24 @@ elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note)
if (elfcore_netbsd_get_lwpid (note, &lwp))
elf_tdata (abfd)->core->lwpid = lwp;
if (note->type == NT_NETBSDCORE_PROCINFO)
switch (note->type)
{
case NT_NETBSDCORE_PROCINFO:
/* NetBSD-specific core "procinfo". Note that we expect to
find this note before any of the others, which is fine,
since the kernel writes this note out first when it
creates a core file. */
return elfcore_grok_netbsd_procinfo (abfd, note);
#ifdef NT_NETBSDCORE_AUXV
case NT_NETBSDCORE_AUXV:
/* NetBSD-specific Elf Auxiliary Vector data. */
return elfcore_make_auxv_note_section (abfd, note, 4);
#endif
default:
break;
}
/* As of Jan 2002 there are no other machine-independent notes
/* As of March 2017 there are no other machine-independent notes
defined for NetBSD core files. If the note type is less
than the start of the machine-dependent note types, we don't
understand it. */
@ -10547,6 +10549,23 @@ elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note)
return TRUE;
}
/* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5.
There's also old PT___GETREGS40 == mach + 1 for old reg
structure which lacks GBR. */
case bfd_arch_sh:
switch (note->type)
{
case NT_NETBSDCORE_FIRSTMACH+3:
return elfcore_make_note_pseudosection (abfd, ".reg", note);
case NT_NETBSDCORE_FIRSTMACH+5:
return elfcore_make_note_pseudosection (abfd, ".reg2", note);
default:
return TRUE;
}
/* On all other arch's, PT_GETREGS == mach+1 and
PT_GETFPREGS == mach+3. */
@ -10603,18 +10622,7 @@ elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note)
return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note);
if (note->type == NT_OPENBSD_AUXV)
{
asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv",
SEC_HAS_CONTENTS);
if (sect == NULL)
return FALSE;
sect->size = note->descsz;
sect->filepos = note->descpos;
sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32;
return TRUE;
}
return elfcore_make_auxv_note_section (abfd, note, 0);
if (note->type == NT_OPENBSD_WCOOKIE)
{