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better signal/exception support

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@42 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-03-23 16:49:39 +00:00
parent 66fb9763af
commit 9de5e440b9
15 changed files with 644 additions and 208 deletions
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3
linux-user/elfload.c
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@ -261,6 +261,9 @@ unsigned long setup_arg_pages(unsigned long p, struct linux_binprm * bprm,
/* Create enough stack to hold everything. If we don't use
* it for args, we'll use it for something else...
*/
/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
we allocate a bigger stack. Need a better solution, for example
by remapping the process stack directly at the right place */
if(x86_stack_size > MAX_ARG_PAGES*X86_PAGE_SIZE) {
if((long)mmap4k((void *)(X86_STACK_TOP-x86_stack_size), x86_stack_size + X86_PAGE_SIZE,
PROT_READ | PROT_WRITE,