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elf: Consolidate stackinfo.h

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And use sane default the generic implementation.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
This commit is contained in:
Adhemerval Zanella
2024-11-28 14:36:42 -03:00
parent b7d4de086c
commit 17a43505b3
7 changed files with 13 additions and 171 deletions
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33
sysdeps/aarch64/stackinfo.h
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@@ -1,33 +0,0 @@
/* Copyright (C) 2001-2024 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/>. */
/* This file contains a bit of information about the stack allocation
of the processor. */
#ifndef _STACKINFO_H
#define _STACKINFO_H 1
#include <elf.h>
/* On AArch64 the stack grows down. */
#define _STACK_GROWS_DOWN 1
/* Default to a non-executable stack. */
#define DEFAULT_STACK_PERMS (PF_R|PF_W)
#endif /* stackinfo.h */

33
sysdeps/arc/stackinfo.h
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@@ -1,33 +0,0 @@
/* Stack environment definitions for ARC.
Copyright (C) 2020-2024 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/>. */
/* This file contains a bit of information about the stack allocation
of the processor. */
#ifndef _STACKINFO_H
#define _STACKINFO_H 1
#include <elf.h>
/* On ARC the stack grows down. */
#define _STACK_GROWS_DOWN 1
/* Default to a non-executable stack. */
#define DEFAULT_STACK_PERMS (PF_R|PF_W)
#endif /* stackinfo.h */

29
sysdeps/csky/stackinfo.h
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@@ -1,29 +0,0 @@
/* Stack environment definitions. C-SKY version.
Copyright (C) 2018-2024 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 _STACKINFO_H
#define _STACKINFO_H 1
#include <elf.h>
/* On C-SKY the stack grows down. */
#define _STACK_GROWS_DOWN 1
#define DEFAULT_STACK_PERMS (PF_R|PF_W)
#endif /* stackinfo.h */

15
sysdeps/generic/stackinfo.h
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@@ -15,6 +15,15 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */ <https://www.gnu.org/licenses/>. */
/* This file contains a bit of information about the stack allocation /* This file contains a bit of information about the stack allocation of the
of the processor. Since there is no general truth we can't say processor. Default to a non executable stack that grows downwards. */
anything here. */
#ifndef _STACKINFO_H
#define _STACKINFO_H 1
#include <elf.h>
#define _STACK_GROWS_DOWN 1
#define DEFAULT_STACK_PERMS (PF_R|PF_W)
#endif

33
sysdeps/loongarch/stackinfo.h
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@@ -1,33 +0,0 @@
/* Stack environment definitions for LoongArch.
Copyright (C) 2022-2024 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/>. */
/* This file contains a bit of information about the stack allocation
of the processor. */
#ifndef _STACKINFO_H
#define _STACKINFO_H 1
#include <elf.h>
/* On LoongArch the stack grows down. */
#define _STACK_GROWS_DOWN 1
/* Default to a non-executable stack. */
#define DEFAULT_STACK_PERMS (PF_R | PF_W)
#endif /* stackinfo.h */

8
sysdeps/powerpc/stackinfo.h → sysdeps/powerpc/powerpc32/stackinfo.h
View File

@@ -26,13 +26,7 @@
/* On PPC the stack grows down. */ /* On PPC the stack grows down. */
#define _STACK_GROWS_DOWN 1 #define _STACK_GROWS_DOWN 1
#if __WORDSIZE == 64
/* PPC64 doesn't need an executable stack and doesn't need PT_GNU_STACK
* to make the stack nonexecutable. */
# define DEFAULT_STACK_PERMS (PF_R|PF_W)
#else
/* PF_X can be overridden if PT_GNU_STACK is present but is presumed absent. */ /* PF_X can be overridden if PT_GNU_STACK is present but is presumed absent. */
# define DEFAULT_STACK_PERMS (PF_R|PF_W|PF_X) #define DEFAULT_STACK_PERMS (PF_R|PF_W|PF_X)
#endif
#endif /* stackinfo.h */ #endif /* stackinfo.h */

33
sysdeps/riscv/stackinfo.h
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@@ -1,33 +0,0 @@
/* Stack environment definitions for RISC-V.
Copyright (C) 2011-2024 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/>. */
/* This file contains a bit of information about the stack allocation
of the processor. */
#ifndef _STACKINFO_H
#define _STACKINFO_H 1
#include <elf.h>
/* On RISC-V the stack grows down. */
#define _STACK_GROWS_DOWN 1
/* Default to a non-executable stack. */
#define DEFAULT_STACK_PERMS (PF_R | PF_W)
#endif /* stackinfo.h */