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things for a broken qemu system

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This commit is contained in:
George Hotz 2014-08-01 11:00:21 -07:00
parent 5a9233aadf
commit 7302447624
2 changed files with 19 additions and 0 deletions
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1
.gitignore vendored
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@ -18,4 +18,5 @@ libs/
qiradb/build
cda/clang
qemu
tests/system

18
qemu_mods/tci.c
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@ -419,6 +419,11 @@ static bool tci_compare64(uint64_t u0, uint64_t u1, TCGCond condition)
return result;
}
// if it's not softmmu, assume it's user
#ifndef CONFIG_SOFTMMU
#define QEMU_USER
#endif
#define QIRA_TRACKING
#ifdef QIRA_TRACKING
@ -426,7 +431,10 @@ static bool tci_compare64(uint64_t u0, uint64_t u1, TCGCond condition)
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/file.h>
#ifdef QEMU_USER
#include "qemu.h"
#endif
#define QIRA_DEBUG(...) {}
//#define QIRA_DEBUG qemu_debug
@ -630,6 +638,8 @@ void track_write(target_ulong base, target_ulong offset, target_ulong data, int
//else add_change(offset, data, IS_WRITE | size);
}
#ifdef QEMU_USER
void track_kernel_read(void *host_addr, target_ulong guest_addr, long len) {
if (unlikely(GLOBAL_QIRA_did_init == 0)) return;
@ -651,6 +661,8 @@ void track_kernel_write(void *host_addr, target_ulong guest_addr, long len) {
for (; i < len; i+=1) add_change(guest_addr+i, ((unsigned char*)host_addr)[i], IS_MEM | IS_WRITE | 8);
}
#endif
// careful, this does it twice, MMIO?
#define R(x,y,z) (track_load(x,(uint64_t)y,z),y)
#define W(x,y,z) (track_store(x,(uint64_t)y,z),x)
@ -739,6 +751,7 @@ int run_QIRA_log_from_fd(CPUArchState *env, int qira_log_fd, uint32_t to_change)
if (pchange.changelist_number >= to_change) break;
QIRA_DEBUG("running old change %lX %d\n", pchange.address, pchange.changelist_number);
#ifdef QEMU_USER
#ifdef R_EAX
if (flags & IS_SYSCALL) {
// replay all the syscalls?
@ -752,12 +765,14 @@ int run_QIRA_log_from_fd(CPUArchState *env, int qira_log_fd, uint32_t to_change)
}
#endif
// wrong for system, we need this
if (flags & IS_WRITE) {
void *base;
if (flags & IS_MEM) { base = g2h(pchange.address); }
else { base = ((void *)env) + pchange.address; }
memcpy(base, &pchange.data, (flags&SIZE_MASK) >> 3);
}
#endif
ret++;
}
return ret;
@ -845,7 +860,9 @@ uint32_t GLOBAL_last_fork_change = -1;
target_long last_pc = 0;
void write_out_base(CPUArchState *env, int id);
void write_out_base(CPUArchState *env, int id) {
#ifdef QEMU_USER
CPUState *cpu = ENV_GET_CPU(env);
TaskState *ts = (TaskState *)cpu->opaque;
@ -904,6 +921,7 @@ void write_out_base(CPUArchState *env, int id) {
fprintf(f, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx " %"PRIx64" %s\n", ss, se, (uint64_t)0, envfn);
fclose(f);
#endif
}
/* Interpret pseudo code in tb. */