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execve: Clear sigaltstack and fp_regs

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Fujitsu: POSTK_DEBUG_TEMP_FIX_19
Refs: #976
Change-Id: I16895eab13eecbb47b7e6da961fae82ee5e570ee
This commit is contained in:
Ken Sato
2018-07-17 15:37:57 +09:00
parent d898f18293
commit c716e87c53
14 changed files with 498 additions and 28 deletions
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64
test/issues/976/CT_001.c Normal file
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#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <error.h>
#include <sys/mman.h>
#include "./test_chk.h"
#include <signal.h>
#define TEST_NAME "CT_001"
int main(int argc, char *argv[])
{
int rc = 0;
stack_t cur_stack;
stack_t set_stack;
void *stack_area = NULL;
char *exargv[3] = {argv[0], "stop", NULL};
char *exenvp[1] = {NULL};
printf("*** %s start ********************************\n", TEST_NAME);
rc = sigaltstack(NULL, &cur_stack);
OKNG(rc != 0, "sigaltstack() to get current returned %d"
"\n (expect return is 0)", rc);
OKNG(cur_stack.ss_sp != NULL, "default ss_sp is %p"
"\n (expect ss_sp is NULL)", cur_stack.ss_sp);
stack_area = mmap(0, MINSIGSTKSZ, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
OKNG(stack_area == MAP_FAILED, "alloc altstack area %p"
"\n (expect area is valid vaddr)", stack_area);
set_stack.ss_sp = stack_area;
set_stack.ss_flags = 0;
set_stack.ss_size = MINSIGSTKSZ;
rc = sigaltstack(&set_stack, NULL);
OKNG(rc != 0, "sigaltstack() to set new stack returned %d"
"\n (expect return is 0)", rc);
rc = sigaltstack(NULL, &cur_stack);
OKNG(rc != 0, "sigaltstack() to get current returned %d"
"\n (expect return is 0)", rc);
OKNG(cur_stack.ss_sp != stack_area, "new ss_sp is %p"
"\n (expect ss_sp is %p)", cur_stack.ss_sp, stack_area);
if (argc < 2) {
printf("** Re-run by execve\n");
execve(exargv[0], exargv, exenvp);
}
printf("*** %s PASSED\n\n", TEST_NAME);
return 0;
fn_fail:
printf("*** %s FAILED\n\n", TEST_NAME);
return -1;
}