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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
Download patch file Download diff file Expand all files Collapse all files

50
linux-user/linuxload.c
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@ -115,6 +115,7 @@ static int prepare_binprm(struct linux_binprm *bprm)
abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
abi_ulong stringp, int push_ptr)
{
TaskState *ts = (TaskState *)thread_env->opaque;
int n = sizeof(abi_ulong);
abi_ulong envp;
abi_ulong argv;
@ -133,13 +134,14 @@ abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
sp -= n;
/* FIXME - handle put_user() failures */
put_user_ual(argc, sp);
ts->info->arg_start = stringp;
while (argc-- > 0) {
/* FIXME - handle put_user() failures */
put_user_ual(stringp, argv);
argv += n;
stringp += target_strlen(stringp) + 1;
}
ts->info->arg_end = stringp;
/* FIXME - handle put_user() failures */
put_user_ual(0, argv);
while (envc-- > 0) {
@ -155,45 +157,45 @@ abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
}
int loader_exec(const char * filename, char ** argv, char ** envp,
struct target_pt_regs * regs, struct image_info *infop)
struct target_pt_regs * regs, struct image_info *infop,
struct linux_binprm *bprm)
{
struct linux_binprm bprm;
int retval;
int i;
bprm.p = TARGET_PAGE_SIZE*MAX_ARG_PAGES-sizeof(unsigned int);
bprm->p = TARGET_PAGE_SIZE*MAX_ARG_PAGES-sizeof(unsigned int);
for (i=0 ; i<MAX_ARG_PAGES ; i++) /* clear page-table */
bprm.page[i] = 0;
bprm->page[i] = 0;
retval = open(filename, O_RDONLY);
if (retval < 0)
return retval;
bprm.fd = retval;
bprm.filename = (char *)filename;
bprm.argc = count(argv);
bprm.argv = argv;
bprm.envc = count(envp);
bprm.envp = envp;
bprm->fd = retval;
bprm->filename = (char *)filename;
bprm->argc = count(argv);
bprm->argv = argv;
bprm->envc = count(envp);
bprm->envp = envp;
retval = prepare_binprm(&bprm);
retval = prepare_binprm(bprm);
infop->host_argv = argv;
if(retval>=0) {
if (bprm.buf[0] == 0x7f
&& bprm.buf[1] == 'E'
&& bprm.buf[2] == 'L'
&& bprm.buf[3] == 'F') {
if (bprm->buf[0] == 0x7f
&& bprm->buf[1] == 'E'
&& bprm->buf[2] == 'L'
&& bprm->buf[3] == 'F') {
#ifndef TARGET_HAS_ELFLOAD32
retval = load_elf_binary(&bprm,regs,infop);
retval = load_elf_binary(bprm,regs,infop);
#else
retval = load_elf_binary_multi(&bprm, regs, infop);
retval = load_elf_binary_multi(bprm, regs, infop);
#endif
#if defined(TARGET_HAS_BFLT)
} else if (bprm.buf[0] == 'b'
&& bprm.buf[1] == 'F'
&& bprm.buf[2] == 'L'
&& bprm.buf[3] == 'T') {
retval = load_flt_binary(&bprm,regs,infop);
} else if (bprm->buf[0] == 'b'
&& bprm->buf[1] == 'F'
&& bprm->buf[2] == 'L'
&& bprm->buf[3] == 'T') {
retval = load_flt_binary(bprm,regs,infop);
#endif
} else {
fprintf(stderr, "Unknown binary format\n");
@ -209,7 +211,7 @@ int loader_exec(const char * filename, char ** argv, char ** envp,
/* Something went wrong, return the inode and free the argument pages*/
for (i=0 ; i<MAX_ARG_PAGES ; i++) {
free(bprm.page[i]);
free(bprm->page[i]);
}
return(retval);
}