mirror of
https://github.com/qemu/qemu.git
synced 2025-10-31 04:06:46 +00:00
9c0928045c
Leading underscores are ill-advised because such identifiers are reserved. Trailing underscores are merely ugly. Strip both. Our header guards commonly end in _H. Normalize the exceptions. Macros should be ALL_CAPS. Normalize the exception. Done with scripts/clean-header-guards.pl. include/hw/xen/interface/ and tools/virtiofsd/ left alone, because these were imported from Xen and libfuse respectively. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220506134911.2856099-3-armbru@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
148 lines
4.6 KiB
C
148 lines
4.6 KiB
C
/*
|
|
* netbsd ELF definitions
|
|
*
|
|
* Copyright (c) 2013 Stacey D. Son
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef TARGET_OS_ELF_H
|
|
#define TARGET_OS_ELF_H
|
|
|
|
#include "target_arch_elf.h"
|
|
#include "elf.h"
|
|
|
|
/* this flag is uneffective under linux too, should be deleted */
|
|
#ifndef MAP_DENYWRITE
|
|
#define MAP_DENYWRITE 0
|
|
#endif
|
|
|
|
/* should probably go in elf.h */
|
|
#ifndef ELIBBAD
|
|
#define ELIBBAD 80
|
|
#endif
|
|
|
|
#ifndef ELF_PLATFORM
|
|
#define ELF_PLATFORM (NULL)
|
|
#endif
|
|
|
|
#ifndef ELF_HWCAP
|
|
#define ELF_HWCAP 0
|
|
#endif
|
|
|
|
#ifdef TARGET_ABI32
|
|
#undef ELF_CLASS
|
|
#define ELF_CLASS ELFCLASS32
|
|
#undef bswaptls
|
|
#define bswaptls(ptr) bswap32s(ptr)
|
|
#endif
|
|
|
|
/* max code+data+bss space allocated to elf interpreter */
|
|
#define INTERP_MAP_SIZE (32 * 1024 * 1024)
|
|
|
|
/* max code+data+bss+brk space allocated to ET_DYN executables */
|
|
#define ET_DYN_MAP_SIZE (128 * 1024 * 1024)
|
|
|
|
/* Necessary parameters */
|
|
#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE
|
|
#define TARGET_ELF_PAGESTART(_v) ((_v) & \
|
|
~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE - 1))
|
|
#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE - 1))
|
|
|
|
#define DLINFO_ITEMS 12
|
|
|
|
static abi_ulong target_create_elf_tables(abi_ulong p, int argc, int envc,
|
|
abi_ulong stringp,
|
|
struct elfhdr *exec,
|
|
abi_ulong load_addr,
|
|
abi_ulong load_bias,
|
|
abi_ulong interp_load_addr,
|
|
struct image_info *info)
|
|
{
|
|
abi_ulong sp;
|
|
int size;
|
|
abi_ulong u_platform;
|
|
const char *k_platform;
|
|
const int n = sizeof(elf_addr_t);
|
|
|
|
sp = p;
|
|
u_platform = 0;
|
|
k_platform = ELF_PLATFORM;
|
|
if (k_platform) {
|
|
size_t len = strlen(k_platform) + 1;
|
|
sp -= (len + n - 1) & ~(n - 1);
|
|
u_platform = sp;
|
|
/* FIXME - check return value of memcpy_to_target() for failure */
|
|
memcpy_to_target(sp, k_platform, len);
|
|
}
|
|
/*
|
|
* Force 16 byte _final_ alignment here for generality.
|
|
*/
|
|
sp = sp & ~(abi_ulong)15;
|
|
size = (DLINFO_ITEMS + 1) * 2;
|
|
if (k_platform) {
|
|
size += 2;
|
|
}
|
|
#ifdef DLINFO_ARCH_ITEMS
|
|
size += DLINFO_ARCH_ITEMS * 2;
|
|
#endif
|
|
size += envc + argc + 2;
|
|
size += 1; /* argc itself */
|
|
size *= n;
|
|
if (size & 15) {
|
|
sp -= 16 - (size & 15);
|
|
}
|
|
|
|
/*
|
|
* NetBSD defines elf_addr_t as Elf32_Off / Elf64_Off
|
|
*/
|
|
#define NEW_AUX_ENT(id, val) do { \
|
|
sp -= n; put_user_ual(val, sp); \
|
|
sp -= n; put_user_ual(id, sp); \
|
|
} while (0)
|
|
|
|
NEW_AUX_ENT(AT_NULL, 0);
|
|
|
|
/* There must be exactly DLINFO_ITEMS entries here. */
|
|
NEW_AUX_ENT(AT_PHDR, (abi_ulong)(load_addr + exec->e_phoff));
|
|
NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof(struct elf_phdr)));
|
|
NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum));
|
|
NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE));
|
|
NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_load_addr));
|
|
NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0);
|
|
NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry);
|
|
NEW_AUX_ENT(AT_UID, (abi_ulong)getuid());
|
|
NEW_AUX_ENT(AT_EUID, (abi_ulong)geteuid());
|
|
NEW_AUX_ENT(AT_GID, (abi_ulong)getgid());
|
|
NEW_AUX_ENT(AT_EGID, (abi_ulong)getegid());
|
|
NEW_AUX_ENT(AT_HWCAP, (abi_ulong)ELF_HWCAP);
|
|
NEW_AUX_ENT(AT_CLKTCK, (abi_ulong)sysconf(_SC_CLK_TCK));
|
|
if (k_platform) {
|
|
NEW_AUX_ENT(AT_PLATFORM, u_platform);
|
|
}
|
|
#ifdef ARCH_DLINFO
|
|
/*
|
|
* ARCH_DLINFO must come last so platform specific code can enforce
|
|
* special alignment requirements on the AUXV if necessary (eg. PPC).
|
|
*/
|
|
ARCH_DLINFO;
|
|
#endif
|
|
#undef NEW_AUX_ENT
|
|
|
|
sp = loader_build_argptr(envc, argc, sp, stringp);
|
|
return sp;
|
|
}
|
|
|
|
#endif /* TARGET_OS_ELF_H */
|