diff options
Diffstat (limited to 'linux-user/main.c')
| -rw-r--r-- | linux-user/main.c | 46 |
1 files changed, 36 insertions, 10 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index 7d3cf45..5ac5b55 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -39,7 +39,7 @@ #include "qemu/module.h" #include "qemu/plugin.h" #include "user/guest-base.h" -#include "exec/exec-all.h" +#include "user/page-protection.h" #include "exec/gdbstub.h" #include "gdbstub/user.h" #include "tcg/startup.h" @@ -49,7 +49,7 @@ #include "elf.h" #include "trace/control.h" #include "target_elf.h" -#include "cpu_loop-common.h" +#include "user/cpu_loop.h" #include "crypto/init.h" #include "fd-trans.h" #include "signal-common.h" @@ -71,6 +71,7 @@ char *exec_path; char real_exec_path[PATH_MAX]; static bool opt_one_insn_per_tb; +static unsigned long opt_tb_size; static const char *argv0; static const char *gdbstub; static envlist_t *envlist; @@ -121,6 +122,7 @@ static const char *last_log_filename; #endif unsigned long reserved_va; +unsigned long guest_addr_max; static void usage(int exitcode); @@ -412,11 +414,25 @@ static void handle_arg_reserved_va(const char *arg) reserved_va = val ? val - 1 : 0; } +static const char *rtsig_map = CONFIG_QEMU_RTSIG_MAP; + +static void handle_arg_rtsig_map(const char *arg) +{ + rtsig_map = arg; +} + static void handle_arg_one_insn_per_tb(const char *arg) { opt_one_insn_per_tb = true; } +static void handle_arg_tb_size(const char *arg) +{ + if (qemu_strtoul(arg, NULL, 0, &opt_tb_size)) { + usage(EXIT_FAILURE); + } +} + static void handle_arg_strace(const char *arg) { enable_strace = true; @@ -494,6 +510,9 @@ static const struct qemu_argument arg_table[] = { "address", "set guest_base address to 'address'"}, {"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va, "size", "reserve 'size' bytes for guest virtual address space"}, + {"t", "QEMU_RTSIG_MAP", true, handle_arg_rtsig_map, + "tsig hsig n[,...]", + "map target rt signals [tsig,tsig+n) to [hsig,hsig+n]"}, {"d", "QEMU_LOG", true, handle_arg_log, "item[,...]", "enable logging of specified items " "(use '-d help' for a list of items)"}, @@ -506,6 +525,8 @@ static const struct qemu_argument arg_table[] = { {"one-insn-per-tb", "QEMU_ONE_INSN_PER_TB", false, handle_arg_one_insn_per_tb, "", "run with one guest instruction per emulated TB"}, + {"tb-size", "QEMU_TB_SIZE", true, handle_arg_tb_size, + "size", "TCG translation block cache size"}, {"strace", "QEMU_STRACE", false, handle_arg_strace, "", "log system calls"}, {"seed", "QEMU_RAND_SEED", true, handle_arg_seed, @@ -755,8 +776,9 @@ int main(int argc, char **argv, char **envp) /* * Manage binfmt-misc open-binary flag */ + errno = 0; execfd = qemu_getauxval(AT_EXECFD); - if (execfd == 0) { + if (errno != 0) { execfd = open(exec_path, O_RDONLY); if (execfd < 0) { printf("Error while loading %s: %s\n", exec_path, strerror(errno)); @@ -796,6 +818,8 @@ int main(int argc, char **argv, char **envp) accel_init_interfaces(ac); object_property_set_bool(OBJECT(accel), "one-insn-per-tb", opt_one_insn_per_tb, &error_abort); + object_property_set_int(OBJECT(accel), "tb-size", + opt_tb_size, &error_abort); ac->init_machine(NULL); } @@ -835,6 +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 @@ -1001,7 +1032,7 @@ int main(int argc, char **argv, char **envp) target_set_brk(info->brk); syscall_init(); - signal_init(); + signal_init(rtsig_map); /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay generating the prologue until now so that the prologue can take @@ -1011,12 +1042,7 @@ int main(int argc, char **argv, char **envp) target_cpu_copy_regs(env, regs); if (gdbstub) { - if (gdbserver_start(gdbstub) < 0) { - fprintf(stderr, "qemu: could not open gdbserver on %s\n", - gdbstub); - exit(EXIT_FAILURE); - } - gdb_handlesig(cpu, 0, NULL, NULL, 0); + gdbserver_start(gdbstub, &error_fatal); } #ifdef CONFIG_SEMIHOSTING |