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-rw-r--r--linux-user/arm/cpu_loop.c2
-rw-r--r--linux-user/elfload.c85
-rw-r--r--linux-user/flatload.c1
-rw-r--r--linux-user/hppa/cpu_loop.c12
-rw-r--r--linux-user/loongarch64/cpu_loop.c25
-rw-r--r--linux-user/main.c9
-rw-r--r--linux-user/mmap.c3
-rw-r--r--linux-user/qemu.h5
-rw-r--r--linux-user/signal.c4
-rw-r--r--linux-user/syscall.c12
-rw-r--r--linux-user/user-internals.h1
-rw-r--r--linux-user/xtensa/signal.c1
12 files changed, 111 insertions, 49 deletions
diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c
index 7416e32..33f6395 100644
--- a/linux-user/arm/cpu_loop.c
+++ b/linux-user/arm/cpu_loop.c
@@ -25,6 +25,7 @@
#include "signal-common.h"
#include "semihosting/common-semi.h"
#include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
#include "user/page-protection.h"
#include "target/arm/syndrome.h"
@@ -362,6 +363,7 @@ void cpu_loop(CPUARMState *env)
switch (n) {
case ARM_NR_cacheflush:
/* nop */
+ env->regs[0] = 0;
break;
case ARM_NR_set_tls:
cpu_set_tls(env, env->regs[0]);
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index fa83d78..82ebf6a 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -10,7 +10,9 @@
#include "user/tswap-target.h"
#include "user/page-protection.h"
#include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
#include "exec/translation-block.h"
+#include "exec/tswap.h"
#include "user/guest-base.h"
#include "user-internals.h"
#include "signal-common.h"
@@ -2121,9 +2123,12 @@ static inline void memcpy_fromfs(void * to, const void * from, unsigned long n)
memcpy(to, from, n);
}
-#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
static void bswap_ehdr(struct elfhdr *ehdr)
{
+ if (!target_needs_bswap()) {
+ return;
+ }
+
bswap16s(&ehdr->e_type); /* Object file type */
bswap16s(&ehdr->e_machine); /* Architecture */
bswap32s(&ehdr->e_version); /* Object file version */
@@ -2141,8 +2146,11 @@ static void bswap_ehdr(struct elfhdr *ehdr)
static void bswap_phdr(struct elf_phdr *phdr, int phnum)
{
- int i;
- for (i = 0; i < phnum; ++i, ++phdr) {
+ if (!target_needs_bswap()) {
+ return;
+ }
+
+ for (int i = 0; i < phnum; ++i, ++phdr) {
bswap32s(&phdr->p_type); /* Segment type */
bswap32s(&phdr->p_flags); /* Segment flags */
bswaptls(&phdr->p_offset); /* Segment file offset */
@@ -2156,8 +2164,11 @@ static void bswap_phdr(struct elf_phdr *phdr, int phnum)
static void bswap_shdr(struct elf_shdr *shdr, int shnum)
{
- int i;
- for (i = 0; i < shnum; ++i, ++shdr) {
+ if (!target_needs_bswap()) {
+ return;
+ }
+
+ for (int i = 0; i < shnum; ++i, ++shdr) {
bswap32s(&shdr->sh_name);
bswap32s(&shdr->sh_type);
bswaptls(&shdr->sh_flags);
@@ -2173,6 +2184,10 @@ static void bswap_shdr(struct elf_shdr *shdr, int shnum)
static void bswap_sym(struct elf_sym *sym)
{
+ if (!target_needs_bswap()) {
+ return;
+ }
+
bswap32s(&sym->st_name);
bswaptls(&sym->st_value);
bswaptls(&sym->st_size);
@@ -2182,6 +2197,10 @@ static void bswap_sym(struct elf_sym *sym)
#ifdef TARGET_MIPS
static void bswap_mips_abiflags(Mips_elf_abiflags_v0 *abiflags)
{
+ if (!target_needs_bswap()) {
+ return;
+ }
+
bswap16s(&abiflags->version);
bswap32s(&abiflags->ases);
bswap32s(&abiflags->isa_ext);
@@ -2189,15 +2208,6 @@ static void bswap_mips_abiflags(Mips_elf_abiflags_v0 *abiflags)
bswap32s(&abiflags->flags2);
}
#endif
-#else
-static inline void bswap_ehdr(struct elfhdr *ehdr) { }
-static inline void bswap_phdr(struct elf_phdr *phdr, int phnum) { }
-static inline void bswap_shdr(struct elf_shdr *shdr, int shnum) { }
-static inline void bswap_sym(struct elf_sym *sym) { }
-#ifdef TARGET_MIPS
-static inline void bswap_mips_abiflags(Mips_elf_abiflags_v0 *abiflags) { }
-#endif
-#endif
#ifdef USE_ELF_CORE_DUMP
static int elf_core_dump(int, const CPUArchState *);
@@ -3143,11 +3153,11 @@ static bool parse_elf_properties(const ImageSource *src,
* The contents of a valid PT_GNU_PROPERTY is a sequence of uint32_t.
* Swap most of them now, beyond the header and namesz.
*/
-#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
- for (int i = 4; i < n / 4; i++) {
- bswap32s(note.data + i);
+ if (target_needs_bswap()) {
+ for (int i = 4; i < n / 4; i++) {
+ bswap32s(note.data + i);
+ }
}
-#endif
/*
* Note that nhdr is 3 words, and that the "name" described by namesz
@@ -3999,9 +4009,12 @@ struct target_elf_prpsinfo {
char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
};
-#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
static void bswap_prstatus(struct target_elf_prstatus *prstatus)
{
+ if (!target_needs_bswap()) {
+ return;
+ }
+
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);
@@ -4019,6 +4032,10 @@ static void bswap_prstatus(struct target_elf_prstatus *prstatus)
static void bswap_psinfo(struct target_elf_prpsinfo *psinfo)
{
+ if (!target_needs_bswap()) {
+ return;
+ }
+
psinfo->pr_flag = tswapal(psinfo->pr_flag);
psinfo->pr_uid = tswap16(psinfo->pr_uid);
psinfo->pr_gid = tswap16(psinfo->pr_gid);
@@ -4030,21 +4047,19 @@ static void bswap_psinfo(struct target_elf_prpsinfo *psinfo)
static void bswap_note(struct elf_note *en)
{
+ if (!target_needs_bswap()) {
+ return;
+ }
+
bswap32s(&en->n_namesz);
bswap32s(&en->n_descsz);
bswap32s(&en->n_type);
}
-#else
-static inline void bswap_prstatus(struct target_elf_prstatus *p) { }
-static inline void bswap_psinfo(struct target_elf_prpsinfo *p) {}
-static inline void bswap_note(struct elf_note *en) { }
-#endif /* HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN */
/*
* Calculate file (dump) size of given memory region.
*/
-static size_t vma_dump_size(target_ulong start, target_ulong end,
- unsigned long flags)
+static size_t vma_dump_size(vaddr start, vaddr end, int flags)
{
/* The area must be readable. */
if (!(flags & PAGE_READ)) {
@@ -4237,14 +4252,14 @@ static int dump_write(int fd, const void *ptr, size_t size)
return (0);
}
-static int wmr_page_unprotect_regions(void *opaque, target_ulong start,
- target_ulong end, unsigned long flags)
+static int wmr_page_unprotect_regions(void *opaque, vaddr start,
+ vaddr end, int flags)
{
if ((flags & (PAGE_WRITE | PAGE_WRITE_ORG)) == PAGE_WRITE_ORG) {
size_t step = MAX(TARGET_PAGE_SIZE, qemu_real_host_page_size());
while (1) {
- page_unprotect(start, 0);
+ page_unprotect(NULL, start, 0);
if (end - start <= step) {
break;
}
@@ -4259,8 +4274,8 @@ typedef struct {
size_t size;
} CountAndSizeRegions;
-static int wmr_count_and_size_regions(void *opaque, target_ulong start,
- target_ulong end, unsigned long flags)
+static int wmr_count_and_size_regions(void *opaque, vaddr start,
+ vaddr end, int flags)
{
CountAndSizeRegions *css = opaque;
@@ -4274,8 +4289,8 @@ typedef struct {
off_t offset;
} FillRegionPhdr;
-static int wmr_fill_region_phdr(void *opaque, target_ulong start,
- target_ulong end, unsigned long flags)
+static int wmr_fill_region_phdr(void *opaque, vaddr start,
+ vaddr end, int flags)
{
FillRegionPhdr *d = opaque;
struct elf_phdr *phdr = d->phdr;
@@ -4297,8 +4312,8 @@ static int wmr_fill_region_phdr(void *opaque, target_ulong start,
return 0;
}
-static int wmr_write_region(void *opaque, target_ulong start,
- target_ulong end, unsigned long flags)
+static int wmr_write_region(void *opaque, vaddr start,
+ vaddr end, int flags)
{
int fd = *(int *)opaque;
size_t size = vma_dump_size(start, end, flags);
diff --git a/linux-user/flatload.c b/linux-user/flatload.c
index d5cb183..4beb3ed 100644
--- a/linux-user/flatload.c
+++ b/linux-user/flatload.c
@@ -35,6 +35,7 @@
#include "qemu.h"
#include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
#include "user-internals.h"
#include "loader.h"
#include "user-mmap.h"
diff --git a/linux-user/hppa/cpu_loop.c b/linux-user/hppa/cpu_loop.c
index 890e758..9abaad5 100644
--- a/linux-user/hppa/cpu_loop.c
+++ b/linux-user/hppa/cpu_loop.c
@@ -112,7 +112,7 @@ static abi_ulong hppa_lws(CPUHPPAState *env)
void cpu_loop(CPUHPPAState *env)
{
CPUState *cs = env_cpu(env);
- abi_ulong ret;
+ abi_ulong ret, si_code = 0;
int trapnr;
while (1) {
@@ -169,7 +169,15 @@ void cpu_loop(CPUHPPAState *env)
force_sig_fault(TARGET_SIGFPE, TARGET_FPE_CONDTRAP, env->iaoq_f);
break;
case EXCP_ASSIST:
- force_sig_fault(TARGET_SIGFPE, 0, env->iaoq_f);
+ #define set_si_code(mask, val) \
+ if (env->fr[0] & mask) { si_code = val; }
+ set_si_code(R_FPSR_FLG_I_MASK, TARGET_FPE_FLTRES);
+ set_si_code(R_FPSR_FLG_U_MASK, TARGET_FPE_FLTUND);
+ set_si_code(R_FPSR_FLG_O_MASK, TARGET_FPE_FLTOVF);
+ set_si_code(R_FPSR_FLG_Z_MASK, TARGET_FPE_FLTDIV);
+ set_si_code(R_FPSR_FLG_V_MASK, TARGET_FPE_FLTINV);
+ #undef set_si_code
+ force_sig_fault(TARGET_SIGFPE, si_code, env->iaoq_f);
break;
case EXCP_BREAK:
force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->iaoq_f);
diff --git a/linux-user/loongarch64/cpu_loop.c b/linux-user/loongarch64/cpu_loop.c
index 0614d3d..ec8a06c 100644
--- a/linux-user/loongarch64/cpu_loop.c
+++ b/linux-user/loongarch64/cpu_loop.c
@@ -11,6 +11,12 @@
#include "user/cpu_loop.h"
#include "signal-common.h"
+/* Break codes */
+enum {
+ BRK_OVERFLOW = 6,
+ BRK_DIVZERO = 7
+};
+
void cpu_loop(CPULoongArchState *env)
{
CPUState *cs = env_cpu(env);
@@ -66,9 +72,26 @@ void cpu_loop(CPULoongArchState *env)
force_sig_fault(TARGET_SIGFPE, si_code, env->pc);
break;
case EXCP_DEBUG:
- case EXCCODE_BRK:
force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->pc);
break;
+ case EXCCODE_BRK:
+ {
+ unsigned int opcode;
+
+ get_user_u32(opcode, env->pc);
+
+ switch (opcode & 0x7fff) {
+ case BRK_OVERFLOW:
+ force_sig_fault(TARGET_SIGFPE, TARGET_FPE_INTOVF, env->pc);
+ break;
+ case BRK_DIVZERO:
+ force_sig_fault(TARGET_SIGFPE, TARGET_FPE_INTDIV, env->pc);
+ break;
+ default:
+ force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->pc);
+ }
+ }
+ break;
case EXCCODE_BCE:
force_sig_fault(TARGET_SIGSYS, TARGET_SI_KERNEL, env->pc);
break;
diff --git a/linux-user/main.c b/linux-user/main.c
index e2ec597..5ac5b55 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -40,7 +40,6 @@
#include "qemu/plugin.h"
#include "user/guest-base.h"
#include "user/page-protection.h"
-#include "exec/exec-all.h"
#include "exec/gdbstub.h"
#include "gdbstub/user.h"
#include "tcg/startup.h"
@@ -123,6 +122,7 @@ static const char *last_log_filename;
#endif
unsigned long reserved_va;
+unsigned long guest_addr_max;
static void usage(int exitcode);
@@ -859,6 +859,13 @@ int main(int argc, char **argv, char **envp)
/* MAX_RESERVED_VA + 1 is a large power of 2, so is aligned. */
reserved_va = max_reserved_va;
}
+ if (reserved_va != 0) {
+ guest_addr_max = reserved_va;
+ } else if (MIN(TARGET_VIRT_ADDR_SPACE_BITS, TARGET_ABI_BITS) <= 32) {
+ guest_addr_max = UINT32_MAX;
+ } else {
+ guest_addr_max = ~0ul;
+ }
/*
* Temporarily disable
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index d1f36e6..002e1e6 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -21,6 +21,7 @@
#include "trace.h"
#include "exec/log.h"
#include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
#include "exec/tb-flush.h"
#include "exec/translation-block.h"
#include "qemu.h"
@@ -644,7 +645,7 @@ static abi_long mmap_h_eq_g(abi_ulong start, abi_ulong len,
*
* However, this case is rather common with executable images,
* so the workaround is important for even trivial tests, whereas
- * the mmap of of a file being extended is less common.
+ * the mmap of a file being extended is less common.
*/
static abi_long mmap_h_lt_g(abi_ulong start, abi_ulong len, int host_prot,
int mmap_flags, int page_flags, int fd,
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 5f00750..0b19fa4 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -2,7 +2,7 @@
#define QEMU_H
#include "cpu.h"
-#include "exec/cpu_ldst.h"
+#include "accel/tcg/cpu-ldst.h"
#include "user/abitypes.h"
#include "user/page-protection.h"
@@ -362,4 +362,7 @@ void *lock_user_string(abi_ulong guest_addr);
#define unlock_user_struct(host_ptr, guest_addr, copy) \
unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
+/* Clone cpu state */
+CPUArchState *cpu_copy(CPUArchState *env);
+
#endif /* QEMU_H */
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 4dafc2c..cd0e739 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -750,7 +750,7 @@ void force_sigsegv(int oldsig)
}
#endif
-void cpu_loop_exit_sigsegv(CPUState *cpu, target_ulong addr,
+void cpu_loop_exit_sigsegv(CPUState *cpu, vaddr addr,
MMUAccessType access_type, bool maperr, uintptr_t ra)
{
const TCGCPUOps *tcg_ops = cpu->cc->tcg_ops;
@@ -766,7 +766,7 @@ void cpu_loop_exit_sigsegv(CPUState *cpu, target_ulong addr,
cpu_loop_exit_restore(cpu, ra);
}
-void cpu_loop_exit_sigbus(CPUState *cpu, target_ulong addr,
+void cpu_loop_exit_sigbus(CPUState *cpu, vaddr addr,
MMUAccessType access_type, uintptr_t ra)
{
const TCGCPUOps *tcg_ops = cpu->cc->tcg_ops;
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 8bfe491..fc37028 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -26,6 +26,7 @@
#include "tcg/startup.h"
#include "target_mman.h"
#include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
#include "exec/tb-flush.h"
#include "exec/translation-block.h"
#include <elf.h>
@@ -8134,8 +8135,8 @@ static void open_self_maps_4(const struct open_self_maps_data *d,
* Callback for walk_memory_regions, when read_self_maps() fails.
* Proceed without the benefit of host /proc/self/maps cross-check.
*/
-static int open_self_maps_3(void *opaque, target_ulong guest_start,
- target_ulong guest_end, unsigned long flags)
+static int open_self_maps_3(void *opaque, vaddr guest_start,
+ vaddr guest_end, int flags)
{
static const MapInfo mi = { .is_priv = true };
@@ -8146,8 +8147,8 @@ static int open_self_maps_3(void *opaque, target_ulong guest_start,
/*
* Callback for walk_memory_regions, when read_self_maps() succeeds.
*/
-static int open_self_maps_2(void *opaque, target_ulong guest_start,
- target_ulong guest_end, unsigned long flags)
+static int open_self_maps_2(void *opaque, vaddr guest_start,
+ vaddr guest_end, int flags)
{
const struct open_self_maps_data *d = opaque;
uintptr_t host_start = (uintptr_t)g2h_untagged(guest_start);
@@ -8234,6 +8235,9 @@ static int open_self_stat(CPUArchState *cpu_env, int fd)
} else if (i == 3) {
/* ppid */
g_string_printf(buf, FMT_pid " ", getppid());
+ } else if (i == 4) {
+ /* pgid */
+ g_string_printf(buf, FMT_pid " ", getpgrp());
} else if (i == 19) {
/* num_threads */
int cpus = 0;
diff --git a/linux-user/user-internals.h b/linux-user/user-internals.h
index 4aa253b..691b9a1 100644
--- a/linux-user/user-internals.h
+++ b/linux-user/user-internals.h
@@ -19,7 +19,6 @@
#define LINUX_USER_USER_INTERNALS_H
#include "user/thunk.h"
-#include "exec/exec-all.h"
#include "qemu/log.h"
extern char *exec_path;
diff --git a/linux-user/xtensa/signal.c b/linux-user/xtensa/signal.c
index 6514b8d..ef8b0c3 100644
--- a/linux-user/xtensa/signal.c
+++ b/linux-user/xtensa/signal.c
@@ -241,7 +241,6 @@ void setup_rt_frame(int sig, struct target_sigaction *ka,
give_sigsegv:
force_sigsegv(sig);
- return;
}
static void restore_sigcontext(CPUXtensaState *env,
generated by cgit v1.1 at 2025-06-30 21:39:41 +0000