diff options
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/elfload.c | 11 | ||||
| -rw-r--r-- | linux-user/mmap.c | 16 | ||||
| -rw-r--r-- | linux-user/syscall.c | 4 |
3 files changed, 16 insertions, 15 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 1dbc1f0..fa4cc41 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -213,7 +213,7 @@ static bool init_guest_commpage(void) exit(EXIT_FAILURE); } page_set_flags(TARGET_VSYSCALL_PAGE, - TARGET_VSYSCALL_PAGE + TARGET_PAGE_SIZE, + TARGET_VSYSCALL_PAGE | ~TARGET_PAGE_MASK, PAGE_EXEC | PAGE_VALID); return true; } @@ -444,7 +444,7 @@ static bool init_guest_commpage(void) exit(EXIT_FAILURE); } - page_set_flags(commpage, commpage + qemu_host_page_size, + page_set_flags(commpage, commpage | ~qemu_host_page_mask, PAGE_READ | PAGE_EXEC | PAGE_VALID); return true; } @@ -1316,7 +1316,7 @@ static bool init_guest_commpage(void) exit(EXIT_FAILURE); } - page_set_flags(LO_COMMPAGE, LO_COMMPAGE + TARGET_PAGE_SIZE, + page_set_flags(LO_COMMPAGE, LO_COMMPAGE | ~TARGET_PAGE_MASK, PAGE_READ | PAGE_EXEC | PAGE_VALID); return true; } @@ -1728,7 +1728,7 @@ static bool init_guest_commpage(void) * and implement syscalls. Here, simply mark the page executable. * Special case the entry points during translation (see do_page_zero). */ - page_set_flags(LO_COMMPAGE, LO_COMMPAGE + TARGET_PAGE_SIZE, + page_set_flags(LO_COMMPAGE, LO_COMMPAGE | ~TARGET_PAGE_MASK, PAGE_EXEC | PAGE_VALID); return true; } @@ -2209,7 +2209,8 @@ static void zero_bss(abi_ulong elf_bss, abi_ulong last_bss, int prot) /* Ensure that the bss page(s) are valid */ if ((page_get_flags(last_bss-1) & prot) != prot) { - page_set_flags(elf_bss & TARGET_PAGE_MASK, last_bss, prot | PAGE_VALID); + page_set_flags(elf_bss & TARGET_PAGE_MASK, last_bss - 1, + prot | PAGE_VALID); } if (host_start < host_map_start) { diff --git a/linux-user/mmap.c b/linux-user/mmap.c index 28135c9..1d07ff5 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -181,7 +181,7 @@ int target_mprotect(abi_ulong start, abi_ulong len, int target_prot) } } - page_set_flags(start, start + len, page_flags); + page_set_flags(start, start + len - 1, page_flags); ret = 0; error: @@ -640,15 +640,15 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int target_prot, } page_flags |= PAGE_RESET; if (passthrough_start == passthrough_end) { - page_set_flags(start, start + len, page_flags); + page_set_flags(start, start + len - 1, page_flags); } else { if (start < passthrough_start) { - page_set_flags(start, passthrough_start, page_flags); + page_set_flags(start, passthrough_start - 1, page_flags); } - page_set_flags(passthrough_start, passthrough_end, + page_set_flags(passthrough_start, passthrough_end - 1, page_flags | PAGE_PASSTHROUGH); if (passthrough_end < start + len) { - page_set_flags(passthrough_end, start + len, page_flags); + page_set_flags(passthrough_end, start + len - 1, page_flags); } } the_end: @@ -763,7 +763,7 @@ int target_munmap(abi_ulong start, abi_ulong len) } if (ret == 0) { - page_set_flags(start, start + len, 0); + page_set_flags(start, start + len - 1, 0); } mmap_unlock(); return ret; @@ -849,8 +849,8 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size, } else { new_addr = h2g(host_addr); prot = page_get_flags(old_addr); - page_set_flags(old_addr, old_addr + old_size, 0); - page_set_flags(new_addr, new_addr + new_size, + page_set_flags(old_addr, old_addr + old_size - 1, 0); + page_set_flags(new_addr, new_addr + new_size - 1, prot | PAGE_VALID | PAGE_RESET); } mmap_unlock(); diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 2787164..69f740f 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -4595,7 +4595,7 @@ static inline abi_ulong do_shmat(CPUArchState *cpu_env, } raddr=h2g((unsigned long)host_raddr); - page_set_flags(raddr, raddr + shm_info.shm_segsz, + page_set_flags(raddr, raddr + shm_info.shm_segsz - 1, PAGE_VALID | PAGE_RESET | PAGE_READ | (shmflg & SHM_RDONLY ? 0 : PAGE_WRITE)); @@ -4625,7 +4625,7 @@ static inline abi_long do_shmdt(abi_ulong shmaddr) for (i = 0; i < N_SHM_REGIONS; ++i) { if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) { shm_regions[i].in_use = false; - page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0); + page_set_flags(shmaddr, shmaddr + shm_regions[i].size - 1, 0); break; } } |