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linux-user: implemented ELF coredump support for ARM target

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When target process is killed with signal (such signal that
should dump core) a coredump file is created.  This file is
similar than coredump generated by Linux (there are few exceptions
though).

Riku Voipio: added support for rlimit

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
This commit is contained in:
Mika Westerberg
2009-04-07 09:57:11 +03:00
committed by Riku Voipio
parent 88a8c98455
commit edf8e2af14
9 changed files with 1101 additions and 68 deletions
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42
linux-user/main.c
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@@ -25,6 +25,7 @@
#include <errno.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/syscall.h>
#include "qemu.h"
#include "qemu-common.h"
@@ -2319,6 +2320,27 @@ static void usage(void)
THREAD CPUState *thread_env;
void task_settid(TaskState *ts)
{
if (ts->ts_tid == 0) {
#ifdef USE_NPTL
ts->ts_tid = (pid_t)syscall(SYS_gettid);
#else
/* when no threads are used, tid becomes pid */
ts->ts_tid = getpid();
#endif
}
}
void stop_all_tasks(void)
{
/*
* We trust that when using NPTL, start_exclusive()
* handles thread stopping correctly.
*/
start_exclusive();
}
/* Assumes contents are already zeroed. */
void init_task_state(TaskState *ts)
{
@@ -2338,6 +2360,7 @@ int main(int argc, char **argv, char **envp)
const char *cpu_model;
struct target_pt_regs regs1, *regs = &regs1;
struct image_info info1, *info = &info1;
struct linux_binprm bprm;
TaskState ts1, *ts = &ts1;
CPUState *env;
int optind;
@@ -2467,6 +2490,8 @@ int main(int argc, char **argv, char **envp)
/* Zero out image_info */
memset(info, 0, sizeof(struct image_info));
memset(&bprm, 0, sizeof (bprm));
/* Scan interp_prefix dir for replacement files. */
init_paths(interp_prefix);
@@ -2543,7 +2568,16 @@ int main(int argc, char **argv, char **envp)
}
target_argv[target_argc] = NULL;
if (loader_exec(filename, target_argv, target_environ, regs, info) != 0) {
memset(ts, 0, sizeof(TaskState));
init_task_state(ts);
/* build Task State */
ts->info = info;
ts->bprm = &bprm;
env->opaque = ts;
task_settid(ts);
if (loader_exec(filename, target_argv, target_environ, regs,
info, &bprm) != 0) {
printf("Error loading %s\n", filename);
_exit(1);
}
@@ -2579,12 +2613,6 @@ int main(int argc, char **argv, char **envp)
syscall_init();
signal_init();
/* build Task State */
memset(ts, 0, sizeof(TaskState));
init_task_state(ts);
ts->info = info;
env->opaque = ts;
#if defined(TARGET_I386)
cpu_x86_set_cpl(env, 3);