Patchwork [1/6] tests/qruncom.c: Remove libqemu.a example

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Submitter 陳韋任
Date Nov. 8, 2011, 1:01 p.m.
Message ID <1320757308-16478-1-git-send-email-chenwj@iis.sinica.edu.tw>
Download mbox | patch
Permalink /patch/124352/
State New
Headers show

Comments

陳韋任 - Nov. 8, 2011, 1:01 p.m.
From: Chen Wei-Ren <chenwj@iis.sinica.edu.tw>

  Remove libqemu example since libqemu.a is not available anymore.

Signed-off-by: Chen Wei-Ren <chenwj@iis.sinica.edu.tw>
---
 tests/qruncom.c |  284 -------------------------------------------------------
 1 files changed, 0 insertions(+), 284 deletions(-)
 delete mode 100644 tests/qruncom.c

Patch

diff --git a/tests/qruncom.c b/tests/qruncom.c
deleted file mode 100644
index 2e93aaf..0000000
--- a/tests/qruncom.c
+++ /dev/null
@@ -1,284 +0,0 @@ 
-/*
- * Example of use of user mode libqemu: launch a basic .com DOS
- * executable
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <signal.h>
-#include <malloc.h>
-
-#include "cpu.h"
-
-//#define SIGTEST
-
-int cpu_get_pic_interrupt(CPUState *env)
-{
-    return -1;
-}
-
-uint64_t cpu_get_tsc(CPUState *env)
-{
-    return 0;
-}
-
-static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
-                     unsigned long addr, unsigned int sel)
-{
-    unsigned int e1, e2;
-    e1 = (addr & 0xffff) | (sel << 16);
-    e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
-    stl((uint8_t *)ptr, e1);
-    stl((uint8_t *)ptr + 4, e2);
-}
-
-uint64_t idt_table[256];
-
-/* only dpl matters as we do only user space emulation */
-static void set_idt(int n, unsigned int dpl)
-{
-    set_gate(idt_table + n, 0, dpl, 0, 0);
-}
-
-void g_free(void *ptr)
-{
-    free(ptr);
-}
-
-void *g_malloc(size_t size)
-{
-    return malloc(size);
-}
-
-void *g_malloc0(size_t size)
-{
-    void *ptr;
-    ptr = g_malloc(size);
-    if (!ptr)
-        return NULL;
-    memset(ptr, 0, size);
-    return ptr;
-}
-
-void *qemu_vmalloc(size_t size)
-{
-    return memalign(4096, size);
-}
-
-void qemu_vfree(void *ptr)
-{
-    free(ptr);
-}
-
-void qemu_printf(const char *fmt, ...)
-{
-    va_list ap;
-    va_start(ap, fmt);
-    vprintf(fmt, ap);
-    va_end(ap);
-}
-
-/* XXX: this is a bug in helper2.c */
-int errno;
-
-/**********************************************/
-
-#define COM_BASE_ADDR    0x10100
-
-static void usage(void)
-{
-    printf("qruncom version 0.1 (c) 2003 Fabrice Bellard\n"
-           "usage: qruncom file.com\n"
-           "user mode libqemu demo: run simple .com DOS executables\n");
-    exit(1);
-}
-
-static inline uint8_t *seg_to_linear(unsigned int seg, unsigned int reg)
-{
-    return (uint8_t *)((seg << 4) + (reg & 0xffff));
-}
-
-static inline void pushw(CPUState *env, int val)
-{
-    env->regs[R_ESP] = (env->regs[R_ESP] & ~0xffff) | ((env->regs[R_ESP] - 2) & 0xffff);
-    *(uint16_t *)seg_to_linear(env->segs[R_SS].selector, env->regs[R_ESP]) = val;
-}
-
-static void host_segv_handler(int host_signum, siginfo_t *info,
-                              void *puc)
-{
-    if (cpu_signal_handler(host_signum, info, puc)) {
-        return;
-    }
-    abort();
-}
-
-int main(int argc, char **argv)
-{
-    uint8_t *vm86_mem;
-    const char *filename;
-    int fd, ret, seg;
-    CPUState *env;
-
-    if (argc != 2)
-        usage();
-    filename = argv[1];
-
-    vm86_mem = mmap((void *)0x00000000, 0x110000,
-                    PROT_WRITE | PROT_READ | PROT_EXEC,
-                    MAP_FIXED | MAP_ANON | MAP_PRIVATE, -1, 0);
-    if (vm86_mem == MAP_FAILED) {
-        perror("mmap");
-        exit(1);
-    }
-
-    /* load the MSDOS .com executable */
-    fd = open(filename, O_RDONLY);
-    if (fd < 0) {
-        perror(filename);
-        exit(1);
-    }
-    ret = read(fd, vm86_mem + COM_BASE_ADDR, 65536 - 256);
-    if (ret < 0) {
-        perror("read");
-        exit(1);
-    }
-    close(fd);
-
-    /* install exception handler for CPU emulator */
-    {
-        struct sigaction act;
-
-        sigfillset(&act.sa_mask);
-        act.sa_flags = SA_SIGINFO;
-        //        act.sa_flags |= SA_ONSTACK;
-
-        act.sa_sigaction = host_segv_handler;
-        sigaction(SIGSEGV, &act, NULL);
-        sigaction(SIGBUS, &act, NULL);
-    }
-
-    //    cpu_set_log(CPU_LOG_TB_IN_ASM | CPU_LOG_TB_OUT_ASM | CPU_LOG_EXEC);
-
-    env = cpu_init("qemu32");
-
-    cpu_x86_set_cpl(env, 3);
-
-    env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
-    /* NOTE: hflags duplicates some of the virtual CPU state */
-    env->hflags |= HF_PE_MASK | VM_MASK;
-
-    /* flags setup : we activate the IRQs by default as in user
-       mode. We also activate the VM86 flag to run DOS code */
-    env->eflags |= IF_MASK | VM_MASK;
-
-    /* init basic registers */
-    env->eip = 0x100;
-    env->regs[R_ESP] = 0xfffe;
-    seg = (COM_BASE_ADDR - 0x100) >> 4;
-
-    cpu_x86_load_seg_cache(env, R_CS, seg,
-                           (seg << 4), 0xffff, 0);
-    cpu_x86_load_seg_cache(env, R_SS, seg,
-                           (seg << 4), 0xffff, 0);
-    cpu_x86_load_seg_cache(env, R_DS, seg,
-                           (seg << 4), 0xffff, 0);
-    cpu_x86_load_seg_cache(env, R_ES, seg,
-                           (seg << 4), 0xffff, 0);
-    cpu_x86_load_seg_cache(env, R_FS, seg,
-                           (seg << 4), 0xffff, 0);
-    cpu_x86_load_seg_cache(env, R_GS, seg,
-                           (seg << 4), 0xffff, 0);
-
-    /* exception support */
-    env->idt.base = (unsigned long)idt_table;
-    env->idt.limit = sizeof(idt_table) - 1;
-    set_idt(0, 0);
-    set_idt(1, 0);
-    set_idt(2, 0);
-    set_idt(3, 3);
-    set_idt(4, 3);
-    set_idt(5, 3);
-    set_idt(6, 0);
-    set_idt(7, 0);
-    set_idt(8, 0);
-    set_idt(9, 0);
-    set_idt(10, 0);
-    set_idt(11, 0);
-    set_idt(12, 0);
-    set_idt(13, 0);
-    set_idt(14, 0);
-    set_idt(15, 0);
-    set_idt(16, 0);
-    set_idt(17, 0);
-    set_idt(18, 0);
-    set_idt(19, 0);
-
-    /* put return code */
-    *seg_to_linear(env->segs[R_CS].selector, 0) = 0xb4; /* mov ah, $0 */
-    *seg_to_linear(env->segs[R_CS].selector, 1) = 0x00;
-    *seg_to_linear(env->segs[R_CS].selector, 2) = 0xcd; /* int $0x21 */
-    *seg_to_linear(env->segs[R_CS].selector, 3) = 0x21;
-    pushw(env, 0x0000);
-
-    /* the value of these registers seem to be assumed by pi_10.com */
-    env->regs[R_ESI] = 0x100;
-    env->regs[R_ECX] = 0xff;
-    env->regs[R_EBP] = 0x0900;
-    env->regs[R_EDI] = 0xfffe;
-
-    /* inform the emulator of the mmaped memory */
-    page_set_flags(0x00000000, 0x110000,
-                   PAGE_WRITE | PAGE_READ | PAGE_EXEC | PAGE_VALID);
-
-    for(;;) {
-        ret = cpu_x86_exec(env);
-        switch(ret) {
-        case EXCP0D_GPF:
-            {
-                int int_num, ah;
-                int_num = *(uint8_t *)(env->segs[R_CS].base + env->eip + 1);
-                if (int_num != 0x21)
-                    goto unknown_int;
-                ah = (env->regs[R_EAX] >> 8) & 0xff;
-                switch(ah) {
-                case 0x00: /* exit */
-                    exit(0);
-                case 0x02: /* write char */
-                    {
-                        uint8_t c = env->regs[R_EDX];
-                        write(1, &c, 1);
-                    }
-                    break;
-                case 0x09: /* write string */
-                    {
-                        uint8_t c;
-                        for(;;) {
-                            c = *seg_to_linear(env->segs[R_DS].selector, env->regs[R_EAX]);
-                            if (c == '$')
-                                break;
-                            write(1, &c, 1);
-                        }
-                        env->regs[R_EAX] = (env->regs[R_EAX] & ~0xff) | '$';
-                    }
-                    break;
-                default:
-                unknown_int:
-                    fprintf(stderr, "unsupported int 0x%02x\n", int_num);
-                    cpu_dump_state(env, stderr, fprintf, 0);
-                    //                    exit(1);
-                }
-                env->eip += 2;
-            }
-            break;
-        default:
-            fprintf(stderr, "unhandled cpu_exec return code (0x%x)\n", ret);
-            cpu_dump_state(env, stderr, fprintf, 0);
-            exit(1);
-        }
-    }
-}