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author | Stafford Horne <shorne@gmail.com> | 2021-10-20 06:48:11 +0900 |
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committer | Stafford Horne <shorne@gmail.com> | 2022-01-05 06:40:06 +0900 |
commit | de5c0edc804b6f2b09c05a0bde1e6679d57e4ca4 (patch) | |
tree | 993270b256fa7e57c20872c5581469fc54e0462f /sysdeps/or1k/bits/link.h | |
parent | 6e5964311d57c017ed0af3d87095e54805f2541e (diff) | |
download | glibc-de5c0edc804b6f2b09c05a0bde1e6679d57e4ca4.zip glibc-de5c0edc804b6f2b09c05a0bde1e6679d57e4ca4.tar.gz glibc-de5c0edc804b6f2b09c05a0bde1e6679d57e4ca4.tar.bz2 |
or1k: startup and dynamic linking code
Code for C runtime startup and dynamic loading including PLT layout.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/or1k/bits/link.h')
-rw-r--r-- | sysdeps/or1k/bits/link.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/sysdeps/or1k/bits/link.h b/sysdeps/or1k/bits/link.h new file mode 100644 index 0000000..16b3fad --- /dev/null +++ b/sysdeps/or1k/bits/link.h @@ -0,0 +1,54 @@ +/* Declarations for dynamic linker interface. OpenRISC version. + 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 + <https://www.gnu.org/licenses/>. */ + +#ifndef _LINK_H +# error "Never include <bits/link.h> directly; use <link.h> instead." +#endif + +/* Registers for entry into PLT. */ +typedef struct La_or1k_regs +{ + uint32_t lr_reg[6]; /* Args passed in r3-r8. */ + uint32_t lr_sp; /* Register r1. */ + uint32_t lr_lr; /* Register r9. */ +} La_or1k_regs; + +/* Return values for calls from PLT. */ +typedef struct La_or1k_retval +{ + /* Up to two 32-bit registers used for a return value. */ + uint32_t lrv_reg[2]; +} La_or1k_retval; + +__BEGIN_DECLS + +extern Elf32_Addr la_or1k_gnu_pltenter (Elf32_Sym *__sym, unsigned int __ndx, + uintptr_t *__refcook, + uintptr_t *__defcook, + La_or1k_regs *__regs, + unsigned int *__flags, + const char *__symname, + long int *__framesizep); +extern unsigned int la_or1k_gnu_pltexit (Elf32_Sym *__sym, unsigned int __ndx, + uintptr_t *__refcook, + uintptr_t *__defcook, + const La_or1k_regs *__inregs, + La_or1k_retval *__outregs, + const char *__symname); + +__END_DECLS |