63c1b7de0a
The AArch64 ELF hwcap2 field is 64 bits, but our get_elf_hwcap2() works with uint32_t, so it accidentally fails to report any hwcaps over bit 31. Use uint64_t here. The Arm hwcap2 is only 32 bits (because the ELF format makes these fields be the size of "long" in the ABI), but since it shares the prototype declaration for get_elf_hwcap2() it is easier to also expand it to 64 bits. The only hwcap fields we implement already that are affected by this are the HBC and MOPS ones, neither of which were implemented in a previous release, so this doesn't need backporting to older stable branches. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20231030174000.3792225-3-peter.maydell@linaro.org
111 lines
3.5 KiB
C
111 lines
3.5 KiB
C
/*
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* loader.h: prototypes for linux-user guest binary loader
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LINUX_USER_LOADER_H
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#define LINUX_USER_LOADER_H
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typedef struct {
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const void *cache;
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unsigned int cache_size;
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int fd;
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} ImageSource;
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/**
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* imgsrc_read: Read from ImageSource
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* @dst: destination for read
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* @offset: offset within file for read
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* @len: size of the read
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* @img: ImageSource to read from
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* @errp: Error details.
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*
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* Read into @dst, using the cache when possible.
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*/
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bool imgsrc_read(void *dst, off_t offset, size_t len,
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const ImageSource *img, Error **errp);
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/**
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* imgsrc_read_alloc: Read from ImageSource
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* @offset: offset within file for read
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* @size: size of the read
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* @img: ImageSource to read from
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* @errp: Error details.
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*
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* Read into newly allocated memory, using the cache when possible.
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*/
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void *imgsrc_read_alloc(off_t offset, size_t len,
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const ImageSource *img, Error **errp);
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/**
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* imgsrc_mmap: Map from ImageSource
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*
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* If @src has a file descriptor, pass on to target_mmap. Otherwise,
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* this is "mapping" from a host buffer, which resolves to memcpy.
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* Therefore, flags must be MAP_PRIVATE | MAP_FIXED; the argument is
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* retained for clarity.
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*/
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abi_long imgsrc_mmap(abi_ulong start, abi_ulong len, int prot,
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int flags, const ImageSource *src, abi_ulong offset);
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/*
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* Read a good amount of data initially, to hopefully get all the
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* program headers loaded.
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*/
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#define BPRM_BUF_SIZE 1024
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/*
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* This structure is used to hold the arguments that are
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* used when loading binaries.
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*/
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struct linux_binprm {
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char buf[BPRM_BUF_SIZE] __attribute__((aligned));
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ImageSource src;
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abi_ulong p;
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int e_uid, e_gid;
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int argc, envc;
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char **argv;
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char **envp;
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char *filename; /* Name of binary */
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int (*core_dump)(int, const CPUArchState *); /* coredump routine */
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};
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void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
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abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
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abi_ulong stringp, int push_ptr);
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int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
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struct target_pt_regs *regs, struct image_info *infop,
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struct linux_binprm *);
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uint32_t get_elf_eflags(int fd);
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int load_elf_binary(struct linux_binprm *bprm, struct image_info *info);
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int load_flt_binary(struct linux_binprm *bprm, struct image_info *info);
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abi_long memcpy_to_target(abi_ulong dest, const void *src,
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unsigned long len);
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extern unsigned long guest_stack_size;
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#if defined(TARGET_S390X) || defined(TARGET_AARCH64) || defined(TARGET_ARM)
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uint32_t get_elf_hwcap(void);
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const char *elf_hwcap_str(uint32_t bit);
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#endif
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#if defined(TARGET_AARCH64) || defined(TARGET_ARM)
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uint64_t get_elf_hwcap2(void);
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const char *elf_hwcap2_str(uint32_t bit);
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#endif
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#endif /* LINUX_USER_LOADER_H */
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