#include <time.h>
#include "qemu.h"
-#include "disas.h"
+#include "disas/disas.h"
#ifdef _ARCH_PPC64
#undef ARCH_DLINFO
#define ELF_DATA ELFDATA2LSB
#endif
-typedef target_ulong target_elf_greg_t;
+#ifdef TARGET_ABI_MIPSN32
+typedef abi_ullong target_elf_greg_t;
+#define tswapreg(ptr) tswap64(ptr)
+#else
+typedef abi_ulong target_elf_greg_t;
+#define tswapreg(ptr) tswapal(ptr)
+#endif
+
#ifdef USE_UID16
-typedef target_ushort target_uid_t;
-typedef target_ushort target_gid_t;
+typedef abi_ushort target_uid_t;
+typedef abi_ushort target_gid_t;
#else
-typedef target_uint target_uid_t;
-typedef target_uint target_gid_t;
+typedef abi_uint target_uid_t;
+typedef abi_uint target_gid_t;
#endif
-typedef target_int target_pid_t;
+typedef abi_int target_pid_t;
#ifdef TARGET_I386
static const char *get_elf_platform(void)
{
static char elf_platform[] = "i386";
- int family = (thread_env->cpuid_version >> 8) & 0xff;
+ int family = object_property_get_int(OBJECT(thread_cpu), "family", NULL);
if (family > 6)
family = 6;
if (family >= 3)
static uint32_t get_elf_hwcap(void)
{
- return thread_env->cpuid_features;
+ X86CPU *cpu = X86_CPU(thread_cpu);
+
+ return cpu->env.features[FEAT_1_EDX];
}
#ifdef TARGET_X86_64
*
* See linux kernel: arch/x86/include/asm/elf.h
*/
-static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUState *env)
+static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUX86State *env)
{
(*regs)[0] = env->regs[15];
(*regs)[1] = env->regs[14];
*
* See linux kernel: arch/x86/include/asm/elf.h
*/
-static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUState *env)
+static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUX86State *env)
{
(*regs)[0] = env->regs[R_EBX];
(*regs)[1] = env->regs[R_ECX];
#define ELF_START_MMAP 0x80000000
-#define elf_check_arch(x) ( (x) == EM_ARM )
+#define elf_check_arch(x) ((x) == ELF_MACHINE)
+
+#define ELF_ARCH ELF_MACHINE
+#ifdef TARGET_AARCH64
+#define ELF_CLASS ELFCLASS64
+#else
#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_ARM
+#endif
static inline void init_thread(struct target_pt_regs *regs,
struct image_info *infop)
{
abi_long stack = infop->start_stack;
memset(regs, 0, sizeof(*regs));
+
+#ifdef TARGET_AARCH64
+ regs->pc = infop->entry & ~0x3ULL;
+ regs->sp = stack;
+#else
regs->ARM_cpsr = 0x10;
if (infop->entry & 1)
regs->ARM_cpsr |= CPSR_T;
/* For uClinux PIC binaries. */
/* XXX: Linux does this only on ARM with no MMU (do we care ?) */
regs->ARM_r10 = infop->start_data;
+#endif
}
#define ELF_NREG 18
typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
-static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUState *env)
-{
- (*regs)[0] = tswapl(env->regs[0]);
- (*regs)[1] = tswapl(env->regs[1]);
- (*regs)[2] = tswapl(env->regs[2]);
- (*regs)[3] = tswapl(env->regs[3]);
- (*regs)[4] = tswapl(env->regs[4]);
- (*regs)[5] = tswapl(env->regs[5]);
- (*regs)[6] = tswapl(env->regs[6]);
- (*regs)[7] = tswapl(env->regs[7]);
- (*regs)[8] = tswapl(env->regs[8]);
- (*regs)[9] = tswapl(env->regs[9]);
- (*regs)[10] = tswapl(env->regs[10]);
- (*regs)[11] = tswapl(env->regs[11]);
- (*regs)[12] = tswapl(env->regs[12]);
- (*regs)[13] = tswapl(env->regs[13]);
- (*regs)[14] = tswapl(env->regs[14]);
- (*regs)[15] = tswapl(env->regs[15]);
-
- (*regs)[16] = tswapl(cpsr_read((CPUState *)env));
- (*regs)[17] = tswapl(env->regs[0]); /* XXX */
+static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUARMState *env)
+{
+ (*regs)[0] = tswapreg(env->regs[0]);
+ (*regs)[1] = tswapreg(env->regs[1]);
+ (*regs)[2] = tswapreg(env->regs[2]);
+ (*regs)[3] = tswapreg(env->regs[3]);
+ (*regs)[4] = tswapreg(env->regs[4]);
+ (*regs)[5] = tswapreg(env->regs[5]);
+ (*regs)[6] = tswapreg(env->regs[6]);
+ (*regs)[7] = tswapreg(env->regs[7]);
+ (*regs)[8] = tswapreg(env->regs[8]);
+ (*regs)[9] = tswapreg(env->regs[9]);
+ (*regs)[10] = tswapreg(env->regs[10]);
+ (*regs)[11] = tswapreg(env->regs[11]);
+ (*regs)[12] = tswapreg(env->regs[12]);
+ (*regs)[13] = tswapreg(env->regs[13]);
+ (*regs)[14] = tswapreg(env->regs[14]);
+ (*regs)[15] = tswapreg(env->regs[15]);
+
+ (*regs)[16] = tswapreg(cpsr_read((CPUARMState *)env));
+ (*regs)[17] = tswapreg(env->regs[0]); /* XXX */
}
#define USE_ELF_CORE_DUMP
ARM_HWCAP_ARM_VFPv3D16 = 1 << 13,
};
-#define ELF_HWCAP (ARM_HWCAP_ARM_SWP | ARM_HWCAP_ARM_HALF \
- | ARM_HWCAP_ARM_THUMB | ARM_HWCAP_ARM_FAST_MULT \
- | ARM_HWCAP_ARM_FPA | ARM_HWCAP_ARM_VFP \
- | ARM_HWCAP_ARM_NEON | ARM_HWCAP_ARM_VFPv3 )
+#define TARGET_HAS_VALIDATE_GUEST_SPACE
+/* Return 1 if the proposed guest space is suitable for the guest.
+ * Return 0 if the proposed guest space isn't suitable, but another
+ * address space should be tried.
+ * Return -1 if there is no way the proposed guest space can be
+ * valid regardless of the base.
+ * The guest code may leave a page mapped and populate it if the
+ * address is suitable.
+ */
+static int validate_guest_space(unsigned long guest_base,
+ unsigned long guest_size)
+{
+ unsigned long real_start, test_page_addr;
+
+ /* We need to check that we can force a fault on access to the
+ * commpage at 0xffff0fxx
+ */
+ test_page_addr = guest_base + (0xffff0f00 & qemu_host_page_mask);
+
+ /* If the commpage lies within the already allocated guest space,
+ * then there is no way we can allocate it.
+ */
+ if (test_page_addr >= guest_base
+ && test_page_addr <= (guest_base + guest_size)) {
+ return -1;
+ }
+
+ /* Note it needs to be writeable to let us initialise it */
+ real_start = (unsigned long)
+ mmap((void *)test_page_addr, qemu_host_page_size,
+ PROT_READ | PROT_WRITE,
+ MAP_ANONYMOUS | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+ /* If we can't map it then try another address */
+ if (real_start == -1ul) {
+ return 0;
+ }
+
+ if (real_start != test_page_addr) {
+ /* OS didn't put the page where we asked - unmap and reject */
+ munmap((void *)real_start, qemu_host_page_size);
+ return 0;
+ }
+
+ /* Leave the page mapped
+ * Populate it (mmap should have left it all 0'd)
+ */
+
+ /* Kernel helper versions */
+ __put_user(5, (uint32_t *)g2h(0xffff0ffcul));
+
+ /* Now it's populated make it RO */
+ if (mprotect((void *)test_page_addr, qemu_host_page_size, PROT_READ)) {
+ perror("Protecting guest commpage");
+ exit(-1);
+ }
+
+ return 1; /* All good */
+}
+
+
+#define ELF_HWCAP get_elf_hwcap()
+
+static uint32_t get_elf_hwcap(void)
+{
+ ARMCPU *cpu = ARM_CPU(thread_cpu);
+ uint32_t hwcaps = 0;
+
+ hwcaps |= ARM_HWCAP_ARM_SWP;
+ hwcaps |= ARM_HWCAP_ARM_HALF;
+ hwcaps |= ARM_HWCAP_ARM_THUMB;
+ hwcaps |= ARM_HWCAP_ARM_FAST_MULT;
+ hwcaps |= ARM_HWCAP_ARM_FPA;
+
+ /* probe for the extra features */
+#define GET_FEATURE(feat, hwcap) \
+ do { if (arm_feature(&cpu->env, feat)) { hwcaps |= hwcap; } } while (0)
+ GET_FEATURE(ARM_FEATURE_VFP, ARM_HWCAP_ARM_VFP);
+ GET_FEATURE(ARM_FEATURE_IWMMXT, ARM_HWCAP_ARM_IWMMXT);
+ GET_FEATURE(ARM_FEATURE_THUMB2EE, ARM_HWCAP_ARM_THUMBEE);
+ GET_FEATURE(ARM_FEATURE_NEON, ARM_HWCAP_ARM_NEON);
+ GET_FEATURE(ARM_FEATURE_VFP3, ARM_HWCAP_ARM_VFPv3);
+ GET_FEATURE(ARM_FEATURE_VFP_FP16, ARM_HWCAP_ARM_VFPv3D16);
+#undef GET_FEATURE
+
+ return hwcaps;
+}
#endif
#define ELF_NREG 34
typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
-static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUState *env)
+static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUUniCore32State *env)
{
(*regs)[0] = env->regs[0];
(*regs)[1] = env->regs[1];
(*regs)[30] = env->regs[30];
(*regs)[31] = env->regs[31];
- (*regs)[32] = cpu_asr_read((CPUState *)env);
+ (*regs)[32] = cpu_asr_read((CPUUniCore32State *)env);
(*regs)[33] = env->regs[0]; /* XXX */
}
#ifdef TARGET_SPARC64
#define ELF_START_MMAP 0x80000000
-
+#define ELF_HWCAP (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \
+ | HWCAP_SPARC_MULDIV | HWCAP_SPARC_V9)
#ifndef TARGET_ABI32
#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS )
#else
#else
#define ELF_START_MMAP 0x80000000
-
+#define ELF_HWCAP (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \
+ | HWCAP_SPARC_MULDIV)
#define elf_check_arch(x) ( (x) == EM_SPARC )
#define ELF_CLASS ELFCLASS32
static uint32_t get_elf_hwcap(void)
{
- CPUState *e = thread_env;
+ PowerPCCPU *cpu = POWERPC_CPU(thread_cpu);
uint32_t features = 0;
/* We don't have to be terribly complete here; the high points are
Altivec/FP/SPE support. Anything else is just a bonus. */
#define GET_FEATURE(flag, feature) \
- do {if (e->insns_flags & flag) features |= feature; } while(0)
+ do { if (cpu->env.insns_flags & flag) { features |= feature; } } while (0)
GET_FEATURE(PPC_64B, QEMU_PPC_FEATURE_64);
GET_FEATURE(PPC_FLOAT, QEMU_PPC_FEATURE_HAS_FPU);
GET_FEATURE(PPC_ALTIVEC, QEMU_PPC_FEATURE_HAS_ALTIVEC);
{
_regs->gpr[1] = infop->start_stack;
#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
- _regs->gpr[2] = ldq_raw(infop->entry + 8) + infop->load_addr;
- infop->entry = ldq_raw(infop->entry) + infop->load_addr;
+ _regs->gpr[2] = ldq_raw(infop->entry + 8) + infop->load_bias;
+ infop->entry = ldq_raw(infop->entry) + infop->load_bias;
#endif
_regs->nip = infop->entry;
}
#define ELF_NREG 48
typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
-static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUState *env)
+static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUPPCState *env)
{
int i;
target_ulong ccr = 0;
for (i = 0; i < ARRAY_SIZE(env->gpr); i++) {
- (*regs)[i] = tswapl(env->gpr[i]);
+ (*regs)[i] = tswapreg(env->gpr[i]);
}
- (*regs)[32] = tswapl(env->nip);
- (*regs)[33] = tswapl(env->msr);
- (*regs)[35] = tswapl(env->ctr);
- (*regs)[36] = tswapl(env->lr);
- (*regs)[37] = tswapl(env->xer);
+ (*regs)[32] = tswapreg(env->nip);
+ (*regs)[33] = tswapreg(env->msr);
+ (*regs)[35] = tswapreg(env->ctr);
+ (*regs)[36] = tswapreg(env->lr);
+ (*regs)[37] = tswapreg(env->xer);
for (i = 0; i < ARRAY_SIZE(env->crf); i++) {
ccr |= env->crf[i] << (32 - ((i + 1) * 4));
}
- (*regs)[38] = tswapl(ccr);
+ (*regs)[38] = tswapreg(ccr);
}
#define USE_ELF_CORE_DUMP
};
/* See linux kernel: arch/mips/kernel/process.c:elf_dump_regs. */
-static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUState *env)
+static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUMIPSState *env)
{
int i;
(*regs)[TARGET_EF_R0] = 0;
for (i = 1; i < ARRAY_SIZE(env->active_tc.gpr); i++) {
- (*regs)[TARGET_EF_R0 + i] = tswapl(env->active_tc.gpr[i]);
+ (*regs)[TARGET_EF_R0 + i] = tswapreg(env->active_tc.gpr[i]);
}
(*regs)[TARGET_EF_R26] = 0;
(*regs)[TARGET_EF_R27] = 0;
- (*regs)[TARGET_EF_LO] = tswapl(env->active_tc.LO[0]);
- (*regs)[TARGET_EF_HI] = tswapl(env->active_tc.HI[0]);
- (*regs)[TARGET_EF_CP0_EPC] = tswapl(env->active_tc.PC);
- (*regs)[TARGET_EF_CP0_BADVADDR] = tswapl(env->CP0_BadVAddr);
- (*regs)[TARGET_EF_CP0_STATUS] = tswapl(env->CP0_Status);
- (*regs)[TARGET_EF_CP0_CAUSE] = tswapl(env->CP0_Cause);
+ (*regs)[TARGET_EF_LO] = tswapreg(env->active_tc.LO[0]);
+ (*regs)[TARGET_EF_HI] = tswapreg(env->active_tc.HI[0]);
+ (*regs)[TARGET_EF_CP0_EPC] = tswapreg(env->active_tc.PC);
+ (*regs)[TARGET_EF_CP0_BADVADDR] = tswapreg(env->CP0_BadVAddr);
+ (*regs)[TARGET_EF_CP0_STATUS] = tswapreg(env->CP0_Status);
+ (*regs)[TARGET_EF_CP0_CAUSE] = tswapreg(env->CP0_Cause);
}
#define USE_ELF_CORE_DUMP
typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
/* See linux kernel: arch/mips/kernel/process.c:elf_dump_regs. */
-static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUState *env)
+static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUMBState *env)
{
int i, pos = 0;
for (i = 0; i < 32; i++) {
- (*regs)[pos++] = tswapl(env->regs[i]);
+ (*regs)[pos++] = tswapreg(env->regs[i]);
}
for (i = 0; i < 6; i++) {
- (*regs)[pos++] = tswapl(env->sregs[i]);
+ (*regs)[pos++] = tswapreg(env->sregs[i]);
}
}
#endif /* TARGET_MICROBLAZE */
+#ifdef TARGET_OPENRISC
+
+#define ELF_START_MMAP 0x08000000
+
+#define elf_check_arch(x) ((x) == EM_OPENRISC)
+
+#define ELF_ARCH EM_OPENRISC
+#define ELF_CLASS ELFCLASS32
+#define ELF_DATA ELFDATA2MSB
+
+static inline void init_thread(struct target_pt_regs *regs,
+ struct image_info *infop)
+{
+ regs->pc = infop->entry;
+ regs->gpr[1] = infop->start_stack;
+}
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE 8192
+
+/* See linux kernel arch/openrisc/include/asm/elf.h. */
+#define ELF_NREG 34 /* gprs and pc, sr */
+typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
+
+static void elf_core_copy_regs(target_elf_gregset_t *regs,
+ const CPUOpenRISCState *env)
+{
+ int i;
+
+ for (i = 0; i < 32; i++) {
+ (*regs)[i] = tswapreg(env->gpr[i]);
+ }
+
+ (*regs)[32] = tswapreg(env->pc);
+ (*regs)[33] = tswapreg(env->sr);
+}
+#define ELF_HWCAP 0
+#define ELF_PLATFORM NULL
+
+#endif /* TARGET_OPENRISC */
+
#ifdef TARGET_SH4
#define ELF_START_MMAP 0x80000000
};
static inline void elf_core_copy_regs(target_elf_gregset_t *regs,
- const CPUState *env)
+ const CPUSH4State *env)
{
int i;
for (i = 0; i < 16; i++) {
- (*regs[i]) = tswapl(env->gregs[i]);
+ (*regs[i]) = tswapreg(env->gregs[i]);
}
- (*regs)[TARGET_REG_PC] = tswapl(env->pc);
- (*regs)[TARGET_REG_PR] = tswapl(env->pr);
- (*regs)[TARGET_REG_SR] = tswapl(env->sr);
- (*regs)[TARGET_REG_GBR] = tswapl(env->gbr);
- (*regs)[TARGET_REG_MACH] = tswapl(env->mach);
- (*regs)[TARGET_REG_MACL] = tswapl(env->macl);
+ (*regs)[TARGET_REG_PC] = tswapreg(env->pc);
+ (*regs)[TARGET_REG_PR] = tswapreg(env->pr);
+ (*regs)[TARGET_REG_SR] = tswapreg(env->sr);
+ (*regs)[TARGET_REG_GBR] = tswapreg(env->gbr);
+ (*regs)[TARGET_REG_MACH] = tswapreg(env->mach);
+ (*regs)[TARGET_REG_MACL] = tswapreg(env->macl);
(*regs)[TARGET_REG_SYSCALL] = 0; /* FIXME */
}
#define ELF_NREG 20
typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG];
-static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUState *env)
-{
- (*regs)[0] = tswapl(env->dregs[1]);
- (*regs)[1] = tswapl(env->dregs[2]);
- (*regs)[2] = tswapl(env->dregs[3]);
- (*regs)[3] = tswapl(env->dregs[4]);
- (*regs)[4] = tswapl(env->dregs[5]);
- (*regs)[5] = tswapl(env->dregs[6]);
- (*regs)[6] = tswapl(env->dregs[7]);
- (*regs)[7] = tswapl(env->aregs[0]);
- (*regs)[8] = tswapl(env->aregs[1]);
- (*regs)[9] = tswapl(env->aregs[2]);
- (*regs)[10] = tswapl(env->aregs[3]);
- (*regs)[11] = tswapl(env->aregs[4]);
- (*regs)[12] = tswapl(env->aregs[5]);
- (*regs)[13] = tswapl(env->aregs[6]);
- (*regs)[14] = tswapl(env->dregs[0]);
- (*regs)[15] = tswapl(env->aregs[7]);
- (*regs)[16] = tswapl(env->dregs[0]); /* FIXME: orig_d0 */
- (*regs)[17] = tswapl(env->sr);
- (*regs)[18] = tswapl(env->pc);
+static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUM68KState *env)
+{
+ (*regs)[0] = tswapreg(env->dregs[1]);
+ (*regs)[1] = tswapreg(env->dregs[2]);
+ (*regs)[2] = tswapreg(env->dregs[3]);
+ (*regs)[3] = tswapreg(env->dregs[4]);
+ (*regs)[4] = tswapreg(env->dregs[5]);
+ (*regs)[5] = tswapreg(env->dregs[6]);
+ (*regs)[6] = tswapreg(env->dregs[7]);
+ (*regs)[7] = tswapreg(env->aregs[0]);
+ (*regs)[8] = tswapreg(env->aregs[1]);
+ (*regs)[9] = tswapreg(env->aregs[2]);
+ (*regs)[10] = tswapreg(env->aregs[3]);
+ (*regs)[11] = tswapreg(env->aregs[4]);
+ (*regs)[12] = tswapreg(env->aregs[5]);
+ (*regs)[13] = tswapreg(env->aregs[6]);
+ (*regs)[14] = tswapreg(env->dregs[0]);
+ (*regs)[15] = tswapreg(env->aregs[7]);
+ (*regs)[16] = tswapreg(env->dregs[0]); /* FIXME: orig_d0 */
+ (*regs)[17] = tswapreg(env->sr);
+ (*regs)[18] = tswapreg(env->pc);
(*regs)[19] = 0; /* FIXME: regs->format | regs->vector */
}
#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
+#define DLINFO_ITEMS 13
static inline void memcpy_fromfs(void * to, const void * from, unsigned long n)
{
#endif
#ifdef USE_ELF_CORE_DUMP
-static int elf_core_dump(int, const CPUState *);
+static int elf_core_dump(int, const CPUArchState *);
#endif /* USE_ELF_CORE_DUMP */
static void load_symbols(struct elfhdr *hdr, int fd, abi_ulong load_bias);
offset = p % TARGET_PAGE_SIZE;
pag = (char *)page[p/TARGET_PAGE_SIZE];
if (!pag) {
- pag = (char *)malloc(TARGET_PAGE_SIZE);
- memset(pag, 0, TARGET_PAGE_SIZE);
+ pag = g_try_malloc0(TARGET_PAGE_SIZE);
page[p/TARGET_PAGE_SIZE] = pag;
if (!pag)
return 0;
info->rss++;
/* FIXME - check return value of memcpy_to_target() for failure */
memcpy_to_target(stack_base, bprm->page[i], TARGET_PAGE_SIZE);
- free(bprm->page[i]);
+ g_free(bprm->page[i]);
}
stack_base += TARGET_PAGE_SIZE;
}
struct image_info *interp_info)
{
abi_ulong sp;
+ abi_ulong sp_auxv;
int size;
+ int i;
+ abi_ulong u_rand_bytes;
+ uint8_t k_rand_bytes[16];
abi_ulong u_platform;
const char *k_platform;
const int n = sizeof(elf_addr_t);
/* FIXME - check return value of memcpy_to_target() for failure */
memcpy_to_target(sp, k_platform, len);
}
+
+ /*
+ * Generate 16 random bytes for userspace PRNG seeding (not
+ * cryptically secure but it's not the aim of QEMU).
+ */
+ srand((unsigned int) time(NULL));
+ for (i = 0; i < 16; i++) {
+ k_rand_bytes[i] = rand();
+ }
+ sp -= 16;
+ u_rand_bytes = sp;
+ /* FIXME - check return value of memcpy_to_target() for failure */
+ memcpy_to_target(sp, k_rand_bytes, 16);
+
/*
* Force 16 byte _final_ alignment here for generality.
*/
sp -= n; put_user_ual(id, sp); \
} while(0)
+ sp_auxv = sp;
NEW_AUX_ENT (AT_NULL, 0);
/* There must be exactly DLINFO_ITEMS entries here. */
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));
+ NEW_AUX_ENT(AT_RANDOM, (abi_ulong) u_rand_bytes);
+
if (k_platform)
NEW_AUX_ENT(AT_PLATFORM, u_platform);
#ifdef ARCH_DLINFO
#undef NEW_AUX_ENT
info->saved_auxv = sp;
+ info->auxv_len = sp_auxv - sp;
sp = loader_build_argptr(envc, argc, sp, p, 0);
return sp;
}
+#ifndef TARGET_HAS_VALIDATE_GUEST_SPACE
+/* If the guest doesn't have a validation function just agree */
+static int validate_guest_space(unsigned long guest_base,
+ unsigned long guest_size)
+{
+ return 1;
+}
+#endif
+
+unsigned long init_guest_space(unsigned long host_start,
+ unsigned long host_size,
+ unsigned long guest_start,
+ bool fixed)
+{
+ unsigned long current_start, real_start;
+ int flags;
+
+ assert(host_start || host_size);
+
+ /* If just a starting address is given, then just verify that
+ * address. */
+ if (host_start && !host_size) {
+ if (validate_guest_space(host_start, host_size) == 1) {
+ return host_start;
+ } else {
+ return (unsigned long)-1;
+ }
+ }
+
+ /* Setup the initial flags and start address. */
+ current_start = host_start & qemu_host_page_mask;
+ flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE;
+ if (fixed) {
+ flags |= MAP_FIXED;
+ }
+
+ /* Otherwise, a non-zero size region of memory needs to be mapped
+ * and validated. */
+ while (1) {
+ unsigned long real_size = host_size;
+
+ /* Do not use mmap_find_vma here because that is limited to the
+ * guest address space. We are going to make the
+ * guest address space fit whatever we're given.
+ */
+ real_start = (unsigned long)
+ mmap((void *)current_start, host_size, PROT_NONE, flags, -1, 0);
+ if (real_start == (unsigned long)-1) {
+ return (unsigned long)-1;
+ }
+
+ /* Ensure the address is properly aligned. */
+ if (real_start & ~qemu_host_page_mask) {
+ munmap((void *)real_start, host_size);
+ real_size = host_size + qemu_host_page_size;
+ real_start = (unsigned long)
+ mmap((void *)real_start, real_size, PROT_NONE, flags, -1, 0);
+ if (real_start == (unsigned long)-1) {
+ return (unsigned long)-1;
+ }
+ real_start = HOST_PAGE_ALIGN(real_start);
+ }
+
+ /* Check to see if the address is valid. */
+ if (!host_start || real_start == current_start) {
+ int valid = validate_guest_space(real_start - guest_start,
+ real_size);
+ if (valid == 1) {
+ break;
+ } else if (valid == -1) {
+ return (unsigned long)-1;
+ }
+ /* valid == 0, so try again. */
+ }
+
+ /* That address didn't work. Unmap and try a different one.
+ * The address the host picked because is typically right at
+ * the top of the host address space and leaves the guest with
+ * no usable address space. Resort to a linear search. We
+ * already compensated for mmap_min_addr, so this should not
+ * happen often. Probably means we got unlucky and host
+ * address space randomization put a shared library somewhere
+ * inconvenient.
+ */
+ munmap((void *)real_start, host_size);
+ current_start += qemu_host_page_size;
+ if (host_start == current_start) {
+ /* Theoretically possible if host doesn't have any suitably
+ * aligned areas. Normally the first mmap will fail.
+ */
+ return (unsigned long)-1;
+ }
+ }
+
+ qemu_log("Reserved 0x%lx bytes of guest address space\n", host_size);
+
+ return real_start;
+}
+
+static void probe_guest_base(const char *image_name,
+ abi_ulong loaddr, abi_ulong hiaddr)
+{
+ /* Probe for a suitable guest base address, if the user has not set
+ * it explicitly, and set guest_base appropriately.
+ * In case of error we will print a suitable message and exit.
+ */
+#if defined(CONFIG_USE_GUEST_BASE)
+ const char *errmsg;
+ if (!have_guest_base && !reserved_va) {
+ unsigned long host_start, real_start, host_size;
+
+ /* Round addresses to page boundaries. */
+ loaddr &= qemu_host_page_mask;
+ hiaddr = HOST_PAGE_ALIGN(hiaddr);
+
+ if (loaddr < mmap_min_addr) {
+ host_start = HOST_PAGE_ALIGN(mmap_min_addr);
+ } else {
+ host_start = loaddr;
+ if (host_start != loaddr) {
+ errmsg = "Address overflow loading ELF binary";
+ goto exit_errmsg;
+ }
+ }
+ host_size = hiaddr - loaddr;
+
+ /* Setup the initial guest memory space with ranges gleaned from
+ * the ELF image that is being loaded.
+ */
+ real_start = init_guest_space(host_start, host_size, loaddr, false);
+ if (real_start == (unsigned long)-1) {
+ errmsg = "Unable to find space for application";
+ goto exit_errmsg;
+ }
+ guest_base = real_start - loaddr;
+
+ qemu_log("Relocating guest address space from 0x"
+ TARGET_ABI_FMT_lx " to 0x%lx\n",
+ loaddr, real_start);
+ }
+ return;
+
+exit_errmsg:
+ fprintf(stderr, "%s: %s\n", image_name, errmsg);
+ exit(-1);
+#endif
+}
+
+
/* Load an ELF image into the address space.
IMAGE_NAME is the filename of the image, to use in error messages.
/* This is the main executable. Make sure that the low
address does not conflict with MMAP_MIN_ADDR or the
QEMU application itself. */
-#if defined(CONFIG_USE_GUEST_BASE)
- /*
- * In case where user has not explicitly set the guest_base, we
- * probe here that should we set it automatically.
- */
- if (!have_guest_base && !reserved_va) {
- unsigned long host_start, real_start, host_size;
-
- /* Round addresses to page boundaries. */
- loaddr &= qemu_host_page_mask;
- hiaddr = HOST_PAGE_ALIGN(hiaddr);
-
- if (loaddr < mmap_min_addr) {
- host_start = HOST_PAGE_ALIGN(mmap_min_addr);
- } else {
- host_start = loaddr;
- if (host_start != loaddr) {
- errmsg = "Address overflow loading ELF binary";
- goto exit_errmsg;
- }
- }
- host_size = hiaddr - loaddr;
- while (1) {
- /* Do not use mmap_find_vma here because that is limited to the
- guest address space. We are going to make the
- guest address space fit whatever we're given. */
- real_start = (unsigned long)
- mmap((void *)host_start, host_size, PROT_NONE,
- MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE, -1, 0);
- if (real_start == (unsigned long)-1) {
- goto exit_perror;
- }
- if (real_start == host_start) {
- break;
- }
- /* That address didn't work. Unmap and try a different one.
- The address the host picked because is typically right at
- the top of the host address space and leaves the guest with
- no usable address space. Resort to a linear search. We
- already compensated for mmap_min_addr, so this should not
- happen often. Probably means we got unlucky and host
- address space randomization put a shared library somewhere
- inconvenient. */
- munmap((void *)real_start, host_size);
- host_start += qemu_host_page_size;
- if (host_start == loaddr) {
- /* Theoretically possible if host doesn't have any suitably
- aligned areas. Normally the first mmap will fail. */
- errmsg = "Unable to find space for application";
- goto exit_errmsg;
- }
- }
- qemu_log("Relocating guest address space from 0x"
- TARGET_ABI_FMT_lx " to 0x%lx\n", loaddr, real_start);
- guest_base = real_start - loaddr;
- }
-#endif
+ probe_guest_base(image_name, loaddr, hiaddr);
}
load_bias = load_addr - loaddr;
#ifdef CONFIG_USE_FDPIC
{
struct elf32_fdpic_loadseg *loadsegs = info->loadsegs =
- qemu_malloc(sizeof(*loadsegs) * info->nsegs);
+ g_malloc(sizeof(*loadsegs) * info->nsegs);
for (i = 0; i < ehdr->e_phnum; ++i) {
switch (phdr[i].p_type) {
info->start_data = -1;
info->end_data = 0;
info->brk = 0;
+ info->elf_flags = ehdr->e_flags;
for (i = 0; i < ehdr->e_phnum; i++) {
struct elf_phdr *eppnt = phdr + i;
static int symfind(const void *s0, const void *s1)
{
- struct elf_sym *key = (struct elf_sym *)s0;
+ target_ulong addr = *(target_ulong *)s0;
struct elf_sym *sym = (struct elf_sym *)s1;
int result = 0;
- if (key->st_value < sym->st_value) {
+ if (addr < sym->st_value) {
result = -1;
- } else if (key->st_value >= sym->st_value + sym->st_size) {
+ } else if (addr >= sym->st_value + sym->st_size) {
result = 1;
}
return result;
#endif
// binary search
- struct elf_sym key;
struct elf_sym *sym;
- key.st_value = orig_addr;
-
- sym = bsearch(&key, syms, s->disas_num_syms, sizeof(*syms), symfind);
+ sym = bsearch(&orig_addr, syms, s->disas_num_syms, sizeof(*syms), symfind);
if (sym != NULL) {
return s->disas_strtab + sym->st_name;
}
{
int i, shnum, nsyms, sym_idx = 0, str_idx = 0;
struct elf_shdr *shdr;
- char *strings;
- struct syminfo *s;
- struct elf_sym *syms, *new_syms;
+ char *strings = NULL;
+ struct syminfo *s = NULL;
+ struct elf_sym *new_syms, *syms = NULL;
shnum = hdr->e_shnum;
i = shnum * sizeof(struct elf_shdr);
/* Now know where the strtab and symtab are. Snarf them. */
s = malloc(sizeof(*s));
if (!s) {
- return;
+ goto give_up;
}
i = shdr[str_idx].sh_size;
s->disas_strtab = strings = malloc(i);
if (!strings || pread(fd, strings, i, shdr[str_idx].sh_offset) != i) {
- free(s);
- free(strings);
- return;
+ goto give_up;
}
i = shdr[sym_idx].sh_size;
syms = malloc(i);
if (!syms || pread(fd, syms, i, shdr[sym_idx].sh_offset) != i) {
- free(s);
- free(strings);
- free(syms);
- return;
+ goto give_up;
}
nsyms = i / sizeof(struct elf_sym);
}
}
+ /* No "useful" symbol. */
+ if (nsyms == 0) {
+ goto give_up;
+ }
+
/* Attempt to free the storage associated with the local symbols
that we threw away. Whether or not this has any effect on the
memory allocation depends on the malloc implementation and how
many symbols we managed to discard. */
new_syms = realloc(syms, nsyms * sizeof(*syms));
if (new_syms == NULL) {
- free(s);
- free(syms);
- free(strings);
- return;
+ goto give_up;
}
syms = new_syms;
s->lookup_symbol = lookup_symbolxx;
s->next = syminfos;
syminfos = s;
+
+ return;
+
+give_up:
+ free(s);
+ free(strings);
+ free(syms);
}
int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
info->start_stack = bprm->p;
/* If we have an interpreter, set that as the program's entry point.
- Copy the load_addr as well, to help PPC64 interpret the entry
+ Copy the load_bias as well, to help PPC64 interpret the entry
point as a function descriptor. Do this after creating elf tables
so that we copy the original program entry point into the AUXV. */
if (elf_interpreter) {
- info->load_addr = interp_info.load_addr;
+ info->load_bias = interp_info.load_bias;
info->entry = interp_info.entry;
free(elf_interpreter);
}
* from given cpu into just specified register set. Prototype is:
*
* static void elf_core_copy_regs(taret_elf_gregset_t *regs,
- * const CPUState *env);
+ * const CPUArchState *env);
*
* Parameters:
* regs - copy register values into here (allocated and zeroed by caller)
};
struct target_elf_siginfo {
- target_int si_signo; /* signal number */
- target_int si_code; /* extra code */
- target_int si_errno; /* errno */
+ abi_int si_signo; /* signal number */
+ abi_int si_code; /* extra code */
+ abi_int si_errno; /* errno */
};
struct target_elf_prstatus {
struct target_elf_siginfo pr_info; /* Info associated with signal */
- target_short pr_cursig; /* Current signal */
- target_ulong pr_sigpend; /* XXX */
- target_ulong pr_sighold; /* XXX */
+ abi_short pr_cursig; /* Current signal */
+ abi_ulong pr_sigpend; /* XXX */
+ abi_ulong pr_sighold; /* XXX */
target_pid_t pr_pid;
target_pid_t pr_ppid;
target_pid_t pr_pgrp;
struct target_timeval pr_cutime; /* XXX Cumulative user time */
struct target_timeval pr_cstime; /* XXX Cumulative system time */
target_elf_gregset_t pr_reg; /* GP registers */
- target_int pr_fpvalid; /* XXX */
+ abi_int pr_fpvalid; /* XXX */
};
#define ELF_PRARGSZ (80) /* Number of chars for args */
char pr_sname; /* char for pr_state */
char pr_zomb; /* zombie */
char pr_nice; /* nice val */
- target_ulong pr_flag; /* flags */
+ abi_ulong pr_flag; /* flags */
target_uid_t pr_uid;
target_gid_t pr_gid;
target_pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
static void fill_elf_note_phdr(struct elf_phdr *, int, off_t);
static size_t note_size(const struct memelfnote *);
static void free_note_info(struct elf_note_info *);
-static int fill_note_info(struct elf_note_info *, long, const CPUState *);
-static void fill_thread_info(struct elf_note_info *, const CPUState *);
+static int fill_note_info(struct elf_note_info *, long, const CPUArchState *);
+static void fill_thread_info(struct elf_note_info *, const CPUArchState *);
static int core_dump_filename(const TaskState *, char *, size_t);
static int dump_write(int, const void *, size_t);
#ifdef BSWAP_NEEDED
static void bswap_prstatus(struct target_elf_prstatus *prstatus)
{
- prstatus->pr_info.si_signo = tswapl(prstatus->pr_info.si_signo);
- prstatus->pr_info.si_code = tswapl(prstatus->pr_info.si_code);
- prstatus->pr_info.si_errno = tswapl(prstatus->pr_info.si_errno);
+ prstatus->pr_info.si_signo = tswap32(prstatus->pr_info.si_signo);
+ prstatus->pr_info.si_code = tswap32(prstatus->pr_info.si_code);
+ prstatus->pr_info.si_errno = tswap32(prstatus->pr_info.si_errno);
prstatus->pr_cursig = tswap16(prstatus->pr_cursig);
- prstatus->pr_sigpend = tswapl(prstatus->pr_sigpend);
- prstatus->pr_sighold = tswapl(prstatus->pr_sighold);
+ prstatus->pr_sigpend = tswapal(prstatus->pr_sigpend);
+ prstatus->pr_sighold = tswapal(prstatus->pr_sighold);
prstatus->pr_pid = tswap32(prstatus->pr_pid);
prstatus->pr_ppid = tswap32(prstatus->pr_ppid);
prstatus->pr_pgrp = tswap32(prstatus->pr_pgrp);
static void bswap_psinfo(struct target_elf_prpsinfo *psinfo)
{
- psinfo->pr_flag = tswapl(psinfo->pr_flag);
+ psinfo->pr_flag = tswapal(psinfo->pr_flag);
psinfo->pr_uid = tswap16(psinfo->pr_uid);
psinfo->pr_gid = tswap16(psinfo->pr_gid);
psinfo->pr_pid = tswap32(psinfo->pr_pid);
{
struct mm_struct *mm;
- if ((mm = qemu_malloc(sizeof (*mm))) == NULL)
+ if ((mm = g_malloc(sizeof (*mm))) == NULL)
return (NULL);
mm->mm_count = 0;
while ((vma = vma_first(mm)) != NULL) {
QTAILQ_REMOVE(&mm->mm_mmap, vma, vma_link);
- qemu_free(vma);
+ g_free(vma);
}
- qemu_free(mm);
+ g_free(mm);
}
static int vma_add_mapping(struct mm_struct *mm, abi_ulong start,
{
struct vm_area_struct *vma;
- if ((vma = qemu_mallocz(sizeof (*vma))) == NULL)
+ if ((vma = g_malloc0(sizeof (*vma))) == NULL)
return (-1);
vma->vma_start = start;
static int fill_psinfo(struct target_elf_prpsinfo *psinfo, const TaskState *ts)
{
- char *filename, *base_filename;
+ char *base_filename;
unsigned int i, len;
(void) memset(psinfo, 0, sizeof (*psinfo));
psinfo->pr_uid = getuid();
psinfo->pr_gid = getgid();
- filename = strdup(ts->bprm->filename);
- base_filename = strdup(basename(filename));
+ base_filename = g_path_get_basename(ts->bprm->filename);
+ /*
+ * Using strncpy here is fine: at max-length,
+ * this field is not NUL-terminated.
+ */
(void) strncpy(psinfo->pr_fname, base_filename,
sizeof(psinfo->pr_fname));
- free(base_filename);
- free(filename);
+ g_free(base_filename);
bswap_psinfo(psinfo);
return (0);
}
{
elf_addr_t auxv = (elf_addr_t)ts->info->saved_auxv;
elf_addr_t orig_auxv = auxv;
- abi_ulong val;
void *ptr;
- int i, len;
+ int len = ts->info->auxv_len;
/*
* Auxiliary vector is stored in target process stack. It contains
* strictly necessary but we do it here for sake of completeness.
*/
- /* find out lenght of the vector, AT_NULL is terminator */
- i = len = 0;
- do {
- get_user_ual(val, auxv);
- i += 2;
- auxv += 2 * sizeof (elf_addr_t);
- } while (val != AT_NULL);
- len = i * sizeof (elf_addr_t);
-
/* read in whole auxv vector and copy it to memelfnote */
ptr = lock_user(VERIFY_READ, orig_auxv, len, 0);
if (ptr != NULL) {
return (0);
}
-static void fill_thread_info(struct elf_note_info *info, const CPUState *env)
+static void fill_thread_info(struct elf_note_info *info, const CPUArchState *env)
{
TaskState *ts = (TaskState *)env->opaque;
struct elf_thread_status *ets;
- ets = qemu_mallocz(sizeof (*ets));
+ ets = g_malloc0(sizeof (*ets));
ets->num_notes = 1; /* only prstatus is dumped */
fill_prstatus(&ets->prstatus, ts, 0);
elf_core_copy_regs(&ets->prstatus.pr_reg, env);
}
static int fill_note_info(struct elf_note_info *info,
- long signr, const CPUState *env)
+ long signr, const CPUArchState *env)
{
#define NUMNOTES 3
CPUState *cpu = NULL;
QTAILQ_INIT(&info->thread_list);
- info->notes = qemu_mallocz(NUMNOTES * sizeof (struct memelfnote));
+ info->notes = g_malloc0(NUMNOTES * sizeof (struct memelfnote));
if (info->notes == NULL)
return (-ENOMEM);
- info->prstatus = qemu_mallocz(sizeof (*info->prstatus));
+ info->prstatus = g_malloc0(sizeof (*info->prstatus));
if (info->prstatus == NULL)
return (-ENOMEM);
- info->psinfo = qemu_mallocz(sizeof (*info->psinfo));
+ info->psinfo = g_malloc0(sizeof (*info->psinfo));
if (info->prstatus == NULL)
return (-ENOMEM);
/* read and fill status of all threads */
cpu_list_lock();
- for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
- if (cpu == thread_env)
+ CPU_FOREACH(cpu) {
+ if (cpu == thread_cpu) {
continue;
- fill_thread_info(info, cpu);
+ }
+ fill_thread_info(info, (CPUArchState *)cpu->env_ptr);
}
cpu_list_unlock();
while (!QTAILQ_EMPTY(&info->thread_list)) {
ets = QTAILQ_FIRST(&info->thread_list);
QTAILQ_REMOVE(&info->thread_list, ets, ets_link);
- qemu_free(ets);
+ g_free(ets);
}
- qemu_free(info->prstatus);
- qemu_free(info->psinfo);
- qemu_free(info->notes);
+ g_free(info->prstatus);
+ g_free(info->psinfo);
+ g_free(info->notes);
}
static int write_note_info(struct elf_note_info *info, int fd)
* handler (provided that target process haven't registered
* handler for that) that does the dump when signal is received.
*/
-static int elf_core_dump(int signr, const CPUState *env)
+static int elf_core_dump(int signr, const CPUArchState *env)
{
const TaskState *ts = (const TaskState *)env->opaque;
struct vm_area_struct *vma = NULL;
projects / qemu.git / blobdiff