RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-30 22:18:11 +00:00
Code Issues Activity Actions

Kernel: Clone Process::m_gids on fork() and hook up any framebuffer region.

Browse source
This commit is contained in:
Andreas Kling 2019-01-21 01:49:30 +01:00
parent 6d9959e367
commit e115ae5641
1 changed files with 6 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Kernel/Process.cpp
View file

@ -232,13 +232,18 @@ Process* Process::fork(RegisterDump& regs)
for (auto& region : m_regions) {
#ifdef FORK_DEBUG
dbgprintf("fork: cloning Region{%p}\n", region.ptr());
dbgprintf("fork: cloning Region{%p} \"%s\" L%x\n", region.ptr(), region->name.characters(), region->linearAddress.get());
#endif
auto cloned_region = region->clone();
child->m_regions.append(move(cloned_region));
MM.map_region(*child, *child->m_regions.last());
if (region.ptr() == m_display_framebuffer_region.ptr())
child->m_display_framebuffer_region = child->m_regions.last().copyRef();
}
for (auto gid : m_gids)
child->m_gids.set(gid);
child->m_tss.eax = 0; // fork() returns 0 in the child :^)
child->m_tss.ebx = regs.ebx;
child->m_tss.ecx = regs.ecx;