diff options
Diffstat (limited to 'linux-user/main.c')
| -rw-r--r-- | linux-user/main.c | 69 |
1 files changed, 39 insertions, 30 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index 47917bbb20..560d053f72 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -49,7 +49,6 @@ char *exec_path; int singlestep; -static const char *filename; static const char *argv0; static int gdbstub_port; static envlist_t *envlist; @@ -78,12 +77,12 @@ int have_guest_base; (TARGET_LONG_BITS == 32 || defined(TARGET_ABI32)) /* There are a number of places where we assign reserved_va to a variable of type abi_ulong and expect it to fit. Avoid the last page. */ -# define MAX_RESERVED_VA (0xfffffffful & TARGET_PAGE_MASK) +# define MAX_RESERVED_VA(CPU) (0xfffffffful & TARGET_PAGE_MASK) # else -# define MAX_RESERVED_VA (1ul << TARGET_VIRT_ADDR_SPACE_BITS) +# define MAX_RESERVED_VA(CPU) (1ul << TARGET_VIRT_ADDR_SPACE_BITS) # endif # else -# define MAX_RESERVED_VA 0 +# define MAX_RESERVED_VA(CPU) 0 # endif #endif @@ -236,7 +235,7 @@ static void handle_arg_log(const char *arg) static void handle_arg_dfilter(const char *arg) { - qemu_set_dfilter_ranges(arg, NULL); + qemu_set_dfilter_ranges(arg, &error_fatal); } static void handle_arg_log_filename(const char *arg) @@ -357,8 +356,7 @@ static void handle_arg_reserved_va(const char *arg) unsigned long unshifted = reserved_va; p++; reserved_va <<= shift; - if (reserved_va >> shift != unshifted - || (MAX_RESERVED_VA && reserved_va > MAX_RESERVED_VA)) { + if (reserved_va >> shift != unshifted) { fprintf(stderr, "Reserved virtual address too big\n"); exit(EXIT_FAILURE); } @@ -393,6 +391,13 @@ static void handle_arg_trace(const char *arg) trace_file = trace_opt_parse(arg); } +#if defined(TARGET_XTENSA) +static void handle_arg_abi_call0(const char *arg) +{ + xtensa_set_abi_call0(); +} +#endif + struct qemu_argument { const char *argv; const char *env; @@ -446,6 +451,10 @@ static const struct qemu_argument arg_table[] = { "", "[[enable=]<pattern>][,events=<file>][,file=<file>]"}, {"version", "QEMU_VERSION", false, handle_arg_version, "", "display version information and exit"}, +#if defined(TARGET_XTENSA) + {"xtensa-abi-call0", "QEMU_XTENSA_ABI_CALL0", false, handle_arg_abi_call0, + "", "assume CALL0 Xtensa ABI"}, +#endif {NULL, NULL, false, NULL, NULL, NULL} }; @@ -586,7 +595,6 @@ static int parse_args(int argc, char **argv) exit(EXIT_FAILURE); } - filename = argv[optind]; exec_path = argv[optind]; return optind; @@ -607,6 +615,7 @@ int main(int argc, char **argv, char **envp) int i; int ret; int execfd; + unsigned long max_reserved_va; error_init(argv[0]); module_call_init(MODULE_INIT_TRACE); @@ -657,9 +666,9 @@ int main(int argc, char **argv, char **envp) execfd = qemu_getauxval(AT_EXECFD); if (execfd == 0) { - execfd = open(filename, O_RDONLY); + execfd = open(exec_path, O_RDONLY); if (execfd < 0) { - printf("Error while loading %s: %s\n", filename, strerror(errno)); + printf("Error while loading %s: %s\n", exec_path, strerror(errno)); _exit(EXIT_FAILURE); } } @@ -672,31 +681,31 @@ int main(int argc, char **argv, char **envp) /* init tcg before creating CPUs and to get qemu_host_page_size */ tcg_exec_init(0); - /* Reserving *too* much vm space via mmap can run into problems - with rlimits, oom due to page table creation, etc. We will still try it, - if directed by the command-line option, but not by default. */ - if (HOST_LONG_BITS == 64 && - TARGET_VIRT_ADDR_SPACE_BITS <= 32 && - reserved_va == 0) { - /* reserved_va must be aligned with the host page size - * as it is used with mmap() - */ - reserved_va = MAX_RESERVED_VA & qemu_host_page_mask; - } - cpu = cpu_create(cpu_type); env = cpu->env_ptr; cpu_reset(cpu); - thread_cpu = cpu; - if (getenv("QEMU_STRACE")) { - do_strace = 1; + /* + * Reserving too much vm space via mmap can run into problems + * with rlimits, oom due to page table creation, etc. We will + * still try it, if directed by the command-line option, but + * not by default. + */ + max_reserved_va = MAX_RESERVED_VA(cpu); + if (reserved_va != 0) { + if (max_reserved_va && reserved_va > max_reserved_va) { + fprintf(stderr, "Reserved virtual address too big\n"); + exit(EXIT_FAILURE); + } + } else if (HOST_LONG_BITS == 64 && TARGET_VIRT_ADDR_SPACE_BITS <= 32) { + /* + * reserved_va must be aligned with the host page size + * as it is used with mmap() + */ + reserved_va = max_reserved_va & qemu_host_page_mask; } - if (seed_optarg == NULL) { - seed_optarg = getenv("QEMU_RAND_SEED"); - } { Error *err = NULL; if (seed_optarg != NULL) { @@ -784,10 +793,10 @@ int main(int argc, char **argv, char **envp) cpu->opaque = ts; task_settid(ts); - ret = loader_exec(execfd, filename, target_argv, target_environ, regs, + ret = loader_exec(execfd, exec_path, target_argv, target_environ, regs, info, &bprm); if (ret != 0) { - printf("Error while loading %s: %s\n", filename, strerror(-ret)); + printf("Error while loading %s: %s\n", exec_path, strerror(-ret)); _exit(EXIT_FAILURE); } |