diff options
author | pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-05-26 15:09:38 +0000 |
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committer | pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-05-26 15:09:38 +0000 |
commit | a87295e8df0923dab9857c1a340d23fe3278a336 (patch) | |
tree | 30c629030791710b509b88fceb184766f97743cd /linux-user | |
parent | 20c9f095c4536e64e60432a5c72fce38e8306cbb (diff) |
M68k system mode semihosting.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2861 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'linux-user')
-rw-r--r-- | linux-user/m68k-semi.c | 216 | ||||
-rw-r--r-- | linux-user/main.c | 15 | ||||
-rw-r--r-- | linux-user/qemu.h | 10 |
3 files changed, 15 insertions, 226 deletions
diff --git a/linux-user/m68k-semi.c b/linux-user/m68k-semi.c deleted file mode 100644 index 7f6dddaee4..0000000000 --- a/linux-user/m68k-semi.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * m68k/ColdFire Semihosting ssycall interface - * - * Copyright (c) 2005 CodeSourcery, LLC. Written by Paul Brook. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <errno.h> -#include <fcntl.h> -#include <unistd.h> -#include <stdlib.h> -#include <stdio.h> -#include <sys/time.h> -#include <time.h> - -#include "qemu.h" - -#define HOSTED_EXIT 0 -#define HOSTED_PUTCHAR 1 /* Obsolete */ -#define HOSTED_OPEN 2 -#define HOSTED_CLOSE 3 -#define HOSTED_READ 4 -#define HOSTED_WRITE 5 -#define HOSTED_LSEEK 6 -#define HOSTED_RENAME 7 -#define HOSTED_UNLINK 8 -#define HOSTED_STAT 9 -#define HOSTED_FSTAT 10 -#define HOSTED_GETTIMEOFDAY 11 -#define HOSTED_ISATTY 12 -#define HOSTED_SYSTEM 13 - -typedef uint32_t gdb_mode_t; -typedef uint32_t gdb_time_t; - -struct m68k_gdb_stat { - uint32_t gdb_st_dev; /* device */ - uint32_t gdb_st_ino; /* inode */ - gdb_mode_t gdb_st_mode; /* protection */ - uint32_t gdb_st_nlink; /* number of hard links */ - uint32_t gdb_st_uid; /* user ID of owner */ - uint32_t gdb_st_gid; /* group ID of owner */ - uint32_t gdb_st_rdev; /* device type (if inode device) */ - uint64_t gdb_st_size; /* total size, in bytes */ - uint64_t gdb_st_blksize; /* blocksize for filesystem I/O */ - uint64_t gdb_st_blocks; /* number of blocks allocated */ - gdb_time_t gdb_st_atime; /* time of last access */ - gdb_time_t gdb_st_mtime; /* time of last modification */ - gdb_time_t gdb_st_ctime; /* time of last change */ -}; - -struct gdb_timeval { - gdb_time_t tv_sec; /* second */ - uint64_t tv_usec; /* microsecond */ -}; - -#define GDB_O_RDONLY 0x0 -#define GDB_O_WRONLY 0x1 -#define GDB_O_RDWR 0x2 -#define GDB_O_APPEND 0x8 -#define GDB_O_CREAT 0x200 -#define GDB_O_TRUNC 0x400 -#define GDB_O_EXCL 0x800 - -static int translate_openflags(int flags) -{ - int hf; - - if (flags & GDB_O_WRONLY) - hf = O_WRONLY; - else if (flags & GDB_O_RDWR) - hf = O_RDWR; - else - hf = O_RDONLY; - - if (flags & GDB_O_APPEND) hf |= O_APPEND; - if (flags & GDB_O_CREAT) hf |= O_CREAT; - if (flags & GDB_O_TRUNC) hf |= O_TRUNC; - if (flags & GDB_O_EXCL) hf |= O_EXCL; - - return hf; -} - -static void translate_stat(struct m68k_gdb_stat *p, struct stat *s) -{ - p->gdb_st_dev = tswap16(s->st_dev); - p->gdb_st_ino = tswap16(s->st_ino); - p->gdb_st_mode = tswap32(s->st_mode); - p->gdb_st_nlink = tswap16(s->st_nlink); - p->gdb_st_uid = tswap16(s->st_uid); - p->gdb_st_gid = tswap16(s->st_gid); - p->gdb_st_rdev = tswap16(s->st_rdev); - p->gdb_st_size = tswap32(s->st_size); - p->gdb_st_atime = tswap32(s->st_atime); - p->gdb_st_mtime = tswap32(s->st_mtime); - p->gdb_st_ctime = tswap32(s->st_ctime); - p->gdb_st_blksize = tswap32(s->st_blksize); - p->gdb_st_blocks = tswap32(s->st_blocks); -} - -static inline uint32_t check_err(CPUM68KState *env, uint32_t code) -{ - if (code == (uint32_t)-1) { - env->sr |= CCF_C; - } else { - env->sr &= ~CCF_C; - env->dregs[0] = code; - } - return code; -} - -#define ARG(x) tswap32(args[x]) -void do_m68k_semihosting(CPUM68KState *env, int nr) -{ - uint32_t *args; - - args = (uint32_t *)env->dregs[1]; - switch (nr) { - case HOSTED_EXIT: - exit(env->dregs[0]); - case HOSTED_OPEN: - /* Assume name is NULL terminated. */ - check_err(env, open((char *)ARG(0), translate_openflags(ARG(2)), - ARG(3))); - break; - case HOSTED_CLOSE: - { - /* Ignore attempts to close stdin/out/err. */ - int fd = ARG(0); - if (fd > 2) - check_err(env, close(fd)); - else - check_err(env, 0); - break; - } - case HOSTED_READ: - check_err(env, read(ARG(0), (void *)ARG(1), ARG(2))); - break; - case HOSTED_WRITE: - check_err(env, write(ARG(0), (void *)ARG(1), ARG(2))); - break; - case HOSTED_LSEEK: - { - uint64_t off; - off = (uint32_t)ARG(2) | ((uint64_t)ARG(1) << 32); - check_err(env, lseek(ARG(0), off, ARG(3))); - } - break; - case HOSTED_RENAME: - /* Assume names are NULL terminated. */ - check_err(env, rename((char *)ARG(0), (char *)ARG(2))); - break; - case HOSTED_UNLINK: - /* Assume name is NULL terminated. */ - check_err(env, unlink((char *)ARG(0))); - break; - case HOSTED_STAT: - /* Assume name is NULL terminated. */ - { - struct stat s; - int rc; - rc = check_err(env, stat((char *)ARG(0), &s)); - if (rc == 0) { - translate_stat((struct m68k_gdb_stat *)ARG(2), &s); - } - } - break; - case HOSTED_FSTAT: - { - struct stat s; - int rc; - rc = check_err(env, fstat(ARG(0), &s)); - if (rc == 0) { - translate_stat((struct m68k_gdb_stat *)ARG(1), &s); - } - } - break; - case HOSTED_GETTIMEOFDAY: - { - struct timeval tv; - struct gdb_timeval *p; - int rc; - rc = check_err(env, gettimeofday(&tv, NULL)); - if (rc != 0) { - p = (struct gdb_timeval *)ARG(0); - p->tv_sec = tswap32(tv.tv_sec); - p->tv_usec = tswap64(tv.tv_usec); - } - } - break; - case HOSTED_ISATTY: - check_err(env, isatty(ARG(0))); - break; - case HOSTED_SYSTEM: - /* Assume name is NULL terminated. */ - check_err(env, system((char *)ARG(0))); - break; - default: - cpu_abort(env, "Unsupported semihosting syscall %d\n", nr); - } -} diff --git a/linux-user/main.c b/linux-user/main.c index 0f4dbdadff..45b03000d2 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -1502,9 +1502,9 @@ void cpu_loop(CPUM68KState *env) } } break; - case EXCP_HALTED: + case EXCP_HALT_INSN: /* Semihosing syscall. */ - env->pc += 2; + env->pc += 4; do_m68k_semihosting(env, env->dregs[0]); break; case EXCP_LINEA: @@ -1918,10 +1918,6 @@ int main(int argc, char **argv) for(i = 0; i < 16; i++) { env->regs[i] = regs->uregs[i]; } - ts->stack_base = info->start_stack; - ts->heap_base = info->brk; - /* This will be filled in on the first SYS_HEAPINFO call. */ - ts->heap_limit = 0; } #elif defined(TARGET_SPARC) { @@ -2049,6 +2045,13 @@ int main(int argc, char **argv) #error unsupported target CPU #endif +#if defined(TARGET_ARM) || defined(TARGET_M68K) + ts->stack_base = info->start_stack; + ts->heap_base = info->brk; + /* This will be filled in on the first SYS_HEAPINFO call. */ + ts->heap_limit = 0; +#endif + if (gdbstub_port) { gdbserver_start (gdbstub_port); gdb_handlesig(env, 0); diff --git a/linux-user/qemu.h b/linux-user/qemu.h index 31e29da7dc..076145e1af 100644 --- a/linux-user/qemu.h +++ b/linux-user/qemu.h @@ -62,10 +62,6 @@ typedef struct TaskState { #ifdef TARGET_ARM /* FPA state */ FPA11 fpa; - /* Extra fields for semihosted binaries. */ - uint32_t stack_base; - uint32_t heap_base; - uint32_t heap_limit; int swi_errno; #endif #if defined(TARGET_I386) && !defined(TARGET_X86_64) @@ -78,6 +74,12 @@ typedef struct TaskState { #ifdef TARGET_M68K int sim_syscalls; #endif +#if defined(TARGET_ARM) || defined(TARGET_M68K) + /* Extra fields for semihosted binaries. */ + uint32_t stack_base; + uint32_t heap_base; + uint32_t heap_limit; +#endif int used; /* non zero if used */ struct image_info *info; uint8_t stack[0]; |