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or1k: ABI Implementation
This code deals with the OpenRISC ABI. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Stafford Horne
parent
9dde3a24f1
commit
6e5964311d
50
sysdeps/or1k/__longjmp.S
Normal file
50
sysdeps/or1k/__longjmp.S
Normal file
@ -0,0 +1,50 @@
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/* longjmp, OpenRISC version.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
|
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|
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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Lesser General Public License for more details.
|
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|
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You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
|
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#define _ASM
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#define _SETJMP_H
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#include <bits/setjmp.h>
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ENTRY (__longjmp)
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l.lwz r1, 0(r3)
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l.lwz r2, 4(r3)
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/* if r4 is 0, something wrong, so set it to 1 */
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l.sfeqi r4, 0x0
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l.bnf 1f /* r4 != 0, longjmp value sensible */
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l.nop
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l.ori r4, r0, 0x1 /* make nonzero */
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1:
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l.addi r11, r4, 0
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l.lwz r9, 8(r3)
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l.lwz r10, 12(r3)
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l.lwz r14, 16(r3)
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l.lwz r16, 20(r3)
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l.lwz r18, 24(r3)
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l.lwz r20, 28(r3)
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l.lwz r22, 32(r3)
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l.lwz r24, 36(r3)
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l.lwz r26, 40(r3)
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l.lwz r28, 44(r3)
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l.lwz r30, 48(r3)
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l.jr r9
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l.nop
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END (__longjmp)
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libc_hidden_def (__longjmp)
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11
sysdeps/or1k/bits/endianness.h
Normal file
11
sysdeps/or1k/bits/endianness.h
Normal file
@ -0,0 +1,11 @@
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#ifndef _BITS_ENDIANNESS_H
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#define _BITS_ENDIANNESS_H 1
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#ifndef _BITS_ENDIAN_H
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# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
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#endif
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/* OpenRISC is big-endian. */
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#define __BYTE_ORDER __BIG_ENDIAN
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#endif /* bits/endianness.h */
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32
sysdeps/or1k/bits/setjmp.h
Normal file
32
sysdeps/or1k/bits/setjmp.h
Normal file
@ -0,0 +1,32 @@
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/* Define the machine-dependent type `jmp_buf'. OpenRISC version.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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|
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _OR1K_BITS_SETJMP_H
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#define _OR1K_BITS_SETJMP_H 1
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#if !defined _SETJMP_H && !defined _PTHREAD_H
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# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
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#endif
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#ifndef _ASM
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typedef long int __jmp_buf[13];
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#endif
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#endif /* _OR1K_BITS_SETJMP_H */
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1
sysdeps/or1k/bsd-_setjmp.S
Normal file
1
sysdeps/or1k/bsd-_setjmp.S
Normal file
@ -0,0 +1 @@
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/* _setjmp is in setjmp.S */
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1
sysdeps/or1k/bsd-setjmp.S
Normal file
1
sysdeps/or1k/bsd-setjmp.S
Normal file
@ -0,0 +1 @@
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/* setjmp is in setjmp.S */
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73
sysdeps/or1k/dl-trampoline.S
Normal file
73
sysdeps/or1k/dl-trampoline.S
Normal file
@ -0,0 +1,73 @@
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/* Machine-dependent ELF runtime symbol resolution, OpenRISC version.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
|
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License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
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|
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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Lesser General Public License for more details.
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|
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You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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/* This code is plugged into the PLT and used by the dynamic linker to
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call _dl_fixup (dl-runtime.c).
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We assume that R11 contains the relocation offset and R12 contains
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link_map (_DYNAMIC). This must be consistent with the JUMP_SLOT
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layout generated by binutils. */
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ENTRY (_dl_runtime_resolve)
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l.sw -4(r1), r9
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l.sw -8(r1), r1
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/* save function arguments. */
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l.sw -12(r1), r3
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l.sw -16(r1), r4
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l.sw -20(r1), r5
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l.sw -24(r1), r6
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l.sw -28(r1), r7
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l.sw -32(r1), r8
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.cfi_offset 9, -4
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.cfi_offset 1, -8
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.cfi_offset 3, -12
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.cfi_offset 4, -16
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.cfi_offset 5, -20
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.cfi_offset 6, -24
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.cfi_offset 7, -28
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.cfi_offset 8, -32
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l.addi r1,r1, -32
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.cfi_def_cfa_offset 32
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l.ori r3, r12, 0
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l.ori r4, r11, 0
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l.jal _dl_fixup
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l.nop
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/* Restore function arguments. */
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l.addi r1,r1, 32
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l.lwz r8, -32(r1)
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l.lwz r7, -28(r1)
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l.lwz r6, -24(r1)
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l.lwz r5, -20(r1)
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l.lwz r4, -16(r1)
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l.lwz r3, -12(r1)
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/* restore return address. */
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l.lwz r9, -4(r1)
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l.jr r11
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l.nop
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END (_dl_runtime_resolve)
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23
sysdeps/or1k/jmpbuf-offsets.h
Normal file
23
sysdeps/or1k/jmpbuf-offsets.h
Normal file
@ -0,0 +1,23 @@
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/* Private macros for accessing __jmp_buf contents. OpenRISC version.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
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|
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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Lesser General Public License for more details.
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|
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You should have received a copy of the GNU Lesser General Public
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||||
License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#define __JMP_BUF_SP 0
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/* Helper for generic function ____longjmp_chk. */
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#define JB_FRAME_ADDRESS(buf) \
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((void *) (unsigned long) (buf[__JMP_BUF_SP]))
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36
sysdeps/or1k/jmpbuf-unwind.h
Normal file
36
sysdeps/or1k/jmpbuf-unwind.h
Normal file
@ -0,0 +1,36 @@
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/* Macros to help frame unwinding using jmpbuf. OpenRISC version.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
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|
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The GNU C Library is distributed in the hope that it will be useful,
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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.
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|
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You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#include <setjmp.h>
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#include <jmpbuf-offsets.h>
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#include <stdint.h>
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#include <unwind.h>
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/* Test if longjmp to JMPBUF would unwind the frame
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containing a local variable at ADDRESS. */
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#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
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((void *) (address) < (void *) demangle (jmpbuf[__JMP_BUF_SP]))
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#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
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_JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
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#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
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((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[__JMP_BUF_SP] - (_adj))
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/* We use the normal longjmp for unwinding. */
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#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
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35
sysdeps/or1k/machine-gmon.h
Normal file
35
sysdeps/or1k/machine-gmon.h
Normal file
@ -0,0 +1,35 @@
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/* Machine-dependent definitions for profiling support. OpenRISC version.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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|
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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.
|
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|
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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
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||||
<https://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#define _MCOUNT_DECL(frompc, selfpc) \
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static void \
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__mcount_internal (unsigned long int frompc, unsigned long int selfpc)
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/* This is very simple as gcc does all the heavy lifting at the _mcount
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call site. GCC passes in the return address of the function calling
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_mcount. */
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#define MCOUNT \
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void \
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_mcount (void *frompc) \
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{ \
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__mcount_internal ((unsigned long int) frompc, \
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(unsigned long int) __builtin_return_address (0)); \
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}
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21
sysdeps/or1k/memusage.h
Normal file
21
sysdeps/or1k/memusage.h
Normal file
@ -0,0 +1,21 @@
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/* Definitions for memory usage profiling. OpenRISC version.
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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/>. */
|
||||
|
||||
#define GETSP() ({ register uintptr_t stack_ptr asm ("r1"); stack_ptr; })
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|
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#include <sysdeps/generic/memusage.h>
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56
sysdeps/or1k/setjmp.S
Normal file
56
sysdeps/or1k/setjmp.S
Normal file
@ -0,0 +1,56 @@
|
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/* setjmp, OpenRISC version.
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||||
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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <sysdep.h>
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#define _ASM
|
||||
#define _SETJMP_H
|
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#include <bits/setjmp.h>
|
||||
|
||||
ENTRY (_setjmp)
|
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l.addi r4, r0, 0 /* Set second argument to 0. */
|
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l.j .Local__sigsetjmp
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||||
l.nop
|
||||
END (_setjmp)
|
||||
libc_hidden_def (_setjmp)
|
||||
|
||||
ENTRY (setjmp)
|
||||
l.addi r4, r0, 1 /* Set second argument to 1. */
|
||||
l.j .Local__sigsetjmp
|
||||
l.nop
|
||||
END (setjmp)
|
||||
|
||||
ENTRY (__sigsetjmp)
|
||||
.Local__sigsetjmp:
|
||||
l.sw 0(r3), r1
|
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l.sw 4(r3), r2
|
||||
l.sw 8(r3), r9
|
||||
l.sw 12(r3), r10
|
||||
l.sw 16(r3), r14
|
||||
l.sw 20(r3), r16
|
||||
l.sw 24(r3), r18
|
||||
l.sw 28(r3), r20
|
||||
l.sw 32(r3), r22
|
||||
l.sw 36(r3), r24
|
||||
l.sw 40(r3), r26
|
||||
l.sw 44(r3), r28
|
||||
l.sw 48(r3), r30
|
||||
l.j __sigjmp_save
|
||||
l.nop
|
||||
END (__sigsetjmp)
|
||||
hidden_def (__sigsetjmp)
|
||||
80
sysdeps/or1k/sysdep.h
Normal file
80
sysdeps/or1k/sysdep.h
Normal file
@ -0,0 +1,80 @@
|
||||
/* Assembler macro definitions. 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/>. */
|
||||
|
||||
#include <sysdeps/generic/sysdep.h>
|
||||
#include <features.h>
|
||||
|
||||
#if defined __ASSEMBLER__ || defined REQUEST_ASSEMBLER_MACROS
|
||||
|
||||
/* Make use of .size directive. */
|
||||
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
|
||||
|
||||
/* Define an entry point visible from C. */
|
||||
#define ENTRY(name) \
|
||||
.globl C_SYMBOL_NAME(name); \
|
||||
.type C_SYMBOL_NAME(name),@function; \
|
||||
.align 4; \
|
||||
C_LABEL(name) \
|
||||
cfi_startproc; \
|
||||
CALL_MCOUNT
|
||||
|
||||
#undef END
|
||||
#define END(name) \
|
||||
cfi_endproc; \
|
||||
ASM_SIZE_DIRECTIVE(name)
|
||||
|
||||
/* Since C identifiers are not normally prefixed with an underscore
|
||||
on this system, the asm identifier `syscall_error' intrudes on the
|
||||
C name space. Make sure we use an innocuous name. */
|
||||
#define syscall_error __syscall_error
|
||||
|
||||
/* If compiled for profiling, call `mcount' at the start of each function. */
|
||||
#ifdef PROF
|
||||
# ifdef __PIC__
|
||||
# define CALL_MCOUNT \
|
||||
l.addi r1, r1, -8; \
|
||||
l.sw 0(r1), r9; \
|
||||
l.sw 4(r1), r3; \
|
||||
l.ori r3, r9, 0; \
|
||||
l.j plt(_mcount); \
|
||||
l.nop; \
|
||||
l.lwz r9, 0(r1); \
|
||||
l.lwz r3, 4(r1); \
|
||||
l.addi r1, r1, 8;
|
||||
# else
|
||||
# define CALL_MCOUNT \
|
||||
l.addi r1, r1, -8; \
|
||||
l.sw 0(r1), r9; \
|
||||
l.sw 4(r1), r3; \
|
||||
l.ori r3, r9, 0; \
|
||||
l.movhi r15, hi(_mcount); \
|
||||
l.ori r15, r15, lo(_mcount); \
|
||||
l.jr r15; \
|
||||
l.nop; \
|
||||
l.lwz r9, 0(r1); \
|
||||
l.lwz r3, 4(r1); \
|
||||
l.addi r1, r1, 8;
|
||||
# endif
|
||||
#else
|
||||
# define CALL_MCOUNT /* Do nothing. */
|
||||
#endif
|
||||
|
||||
/* Local label name for asm code. */
|
||||
#define L(name) .L##name
|
||||
|
||||
#endif /* __ASSEMBLER__ */
|
||||
Loading…
Reference in New Issue
Block a user