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/* Test case for i386 preserved registers in dynamic linker.
Copyright (C) 2015-2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <dlfcn.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <unistd.h>
#include <link.h>
#include <bits/wordsize.h>
#include <gnu/lib-names.h>
unsigned int
la_version (unsigned int v)
{
setlinebuf (stdout);
printf ("version: %u\n", v);
char buf[20];
sprintf (buf, "%u", v);
return v;
}
void
la_activity (uintptr_t *cookie, unsigned int flag)
{
const char *flagstr;
switch (flag)
{
case LA_ACT_CONSISTENT:
flagstr = "consistent";
break;
case LA_ACT_ADD:
flagstr = "add";
break;
case LA_ACT_DELETE:
flagstr = "delete";
break;
default:
printf ("activity: unknown activity %u\n", flag);
return;
}
printf ("activity: %s\n", flagstr);
}
char *
la_objsearch (const char *name, uintptr_t *cookie, unsigned int flag)
{
const char *flagstr;
switch (flag)
{
case LA_SER_ORIG:
flagstr = "LA_SET_ORIG";
break;
case LA_SER_LIBPATH:
flagstr = "LA_SER_LIBPATH";
break;
case LA_SER_RUNPATH:
flagstr = "LA_SER_RUNPATH";
break;
case LA_SER_CONFIG:
flagstr = "LA_SER_CONFIG";
break;
case LA_SER_DEFAULT:
flagstr = "LA_SER_DEFAULT";
break;
case LA_SER_SECURE:
flagstr = "LA_SER_SECURE";
break;
default:
printf ("objsearch: %s, unknown flag %d\n", name, flag);
return (char *) name;
}
printf ("objsearch: %s, %s\n", name, flagstr);
return (char *) name;
}
unsigned int
la_objopen (struct link_map *l, Lmid_t lmid, uintptr_t *cookie)
{
printf ("objopen: %ld, %s\n", lmid, l->l_name);
return 3;
}
void
la_preinit (uintptr_t *cookie)
{
printf ("preinit\n");
}
unsigned int
la_objclose (uintptr_t *cookie)
{
printf ("objclose\n");
return 0;
}
uintptr_t
la_symbind32 (Elf32_Sym *sym, unsigned int ndx, uintptr_t *refcook,
uintptr_t *defcook, unsigned int *flags, const char *symname)
{
printf ("symbind32: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
symname, (long int) sym->st_value, ndx, *flags);
return sym->st_value;
}
#include "tst-audit.h"
ElfW(Addr)
pltenter (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
uintptr_t *defcook, La_regs *regs, unsigned int *flags,
const char *symname, long int *framesizep)
{
printf ("pltenter: symname=%s, st_value=%#lx, ndx=%u, flags=%u\n",
symname, (long int) sym->st_value, ndx, *flags);
if (strcmp (symname, "audit1_test") == 0
|| strcmp (symname, "audit2_test") == 0)
{
if (regs->lr_eax != 1
|| regs->lr_edx != 2
|| regs->lr_ecx != 3)
abort ();
*framesizep = 200;
}
return sym->st_value;
}
unsigned int
pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
uintptr_t *defcook, const La_regs *inregs, La_retval *outregs,
const char *symname)
{
printf ("pltexit: symname=%s, st_value=%#lx, ndx=%u, retval=%tu\n",
symname, (long int) sym->st_value, ndx,
(ptrdiff_t) outregs->int_retval);
if (strcmp (symname, "audit1_test") == 0
|| strcmp (symname, "audit2_test") == 0)
{
if (inregs->lr_eax != 1
|| inregs->lr_edx != 2
|| inregs->lr_ecx != 3)
abort ();
if (strcmp (symname, "audit1_test") == 0)
{
long long x = ((unsigned long long) outregs->lrv_eax
| (unsigned long long) outregs->lrv_edx << 32);
if (x != 30)
abort ();
}
else if (strcmp (symname, "audit2_test") == 0)
{
if (outregs->lrv_st0 != 30)
abort ();
}
}
return 0;
}
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