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sim-se: Implement mkdirat syscall

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JIRA: https://gem5.atlassian.net/browse/GEM5-1098

Change-Id: I0a9a5895ddbd337e055fe83f894d0aa67d705779
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/51053
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
This commit is contained in:
Giacomo Travaglini
2021-09-27 18:09:44 +01:00
parent 7ccb819665
commit a82146153a
2 changed files with 27 additions and 1 deletions
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8
src/sim/syscall_emul.cc
View File

@@ -443,11 +443,17 @@ symlinkFunc(SyscallDesc *desc, ThreadContext *tc,
SyscallReturn
mkdirFunc(SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, mode_t mode)
{
auto p = tc->getProcessPtr();
std::string path;
if (!SETranslatingPortProxy(tc).tryReadString(path, pathname))
return -EFAULT;
return mkdirImpl(desc, tc, path, mode);
}
SyscallReturn
mkdirImpl(SyscallDesc *desc, ThreadContext *tc, std::string path, mode_t mode)
{
auto p = tc->getProcessPtr();
path = p->checkPathRedirect(path);
auto result = mkdir(path.c_str(), mode);

20
src/sim/syscall_emul.hh
View File

@@ -197,6 +197,8 @@ SyscallReturn symlinkFunc(SyscallDesc *desc, ThreadContext *tc,
/// Target mkdir() handler.
SyscallReturn mkdirFunc(SyscallDesc *desc, ThreadContext *tc,
VPtr<> pathname, mode_t mode);
SyscallReturn mkdirImpl(SyscallDesc *desc, ThreadContext *tc,
std::string path, mode_t mode);
/// Target mknod() handler.
SyscallReturn mknodFunc(SyscallDesc *desc, ThreadContext *tc,
@@ -1072,6 +1074,24 @@ fchownatFunc(SyscallDesc *desc, ThreadContext *tc,
return chownImpl(desc, tc, path, owner, group);
}
/// Target mkdirat() handler
template <class OS>
SyscallReturn
mkdiratFunc(SyscallDesc *desc, ThreadContext *tc,
int dirfd, VPtr<> pathname, mode_t mode)
{
std::string path;
if (!SETranslatingPortProxy(tc).tryReadString(path, pathname))
return -EFAULT;
// Modifying path from the directory descriptor
if (auto res = atSyscallPath<OS>(tc, dirfd, path); !res.successful()) {
return res;
}
return mkdirImpl(desc, tc, path, mode);
}
/// Target sysinfo() handler.
template <class OS>
SyscallReturn