From de5c0edc804b6f2b09c05a0bde1e6679d57e4ca4 Mon Sep 17 00:00:00 2001 From: Stafford Horne Date: Wed, 20 Oct 2021 06:48:11 +0900 Subject: or1k: startup and dynamic linking code Code for C runtime startup and dynamic loading including PLT layout. Reviewed-by: Adhemerval Zanella --- sysdeps/or1k/sotruss-lib.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 sysdeps/or1k/sotruss-lib.c (limited to 'sysdeps/or1k/sotruss-lib.c') diff --git a/sysdeps/or1k/sotruss-lib.c b/sysdeps/or1k/sotruss-lib.c new file mode 100644 index 0000000..9dca616 --- /dev/null +++ b/sysdeps/or1k/sotruss-lib.c @@ -0,0 +1,51 @@ +/* Override generic sotruss-lib.c to define actual functions for OpenRISC. + Copyright (C) 2022 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 + . */ + +#define HAVE_ARCH_PLTENTER +#define HAVE_ARCH_PLTEXIT + +#include + +Elf32_Addr +la_or1k_gnu_pltenter (Elf32_Sym *sym __attribute__ ((unused)), + unsigned int ndx __attribute__ ((unused)), + uintptr_t *refcook, uintptr_t *defcook, + La_or1k_regs *regs, unsigned int *flags, + const char *symname, long int *framesizep) +{ + print_enter (refcook, defcook, symname, + regs->lr_reg[0], regs->lr_reg[1], regs->lr_reg[2], + *flags); + + /* No need to copy anything, we will not need the parameters in any case. */ + *framesizep = 0; + + return sym->st_value; +} + +unsigned int +la_or1k_gnu_pltexit (Elf32_Sym *sym, unsigned int ndx, uintptr_t *refcook, + uintptr_t *defcook, + const struct La_or1k_regs *inregs, + struct La_or1k_retval *outregs, + const char *symname) +{ + print_exit (refcook, defcook, symname, outregs->lrv_reg[0]); + + return 0; +} -- cgit v1.1