Giacomo Travaglini has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/51747 )
Change subject: sim-se: Implement fchmodat syscall
......................................................................
sim-se: Implement fchmodat syscall
Signed-off-by: Giacomo Travaglini <[email protected]>
Change-Id: Id3b738fa50d0739da5df856c87a8e172ec7a423a
---
M src/sim/syscall_emul.hh
1 file changed, 26 insertions(+), 3 deletions(-)
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index 0f9b7b0..01ec1fa 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -1090,19 +1090,24 @@
/// Target chmod() handler.
template <class OS>
SyscallReturn
-chmodFunc(SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, mode_t
mode)
+fchmodatFunc(SyscallDesc *desc, ThreadContext *tc,
+ int dirfd, VPtr<> pathname, mode_t mode)
{
std::string path;
- auto process = tc->getProcessPtr();
-
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;
+ }
+
mode_t hostMode = 0;
// XXX translate mode flags via OS::something???
hostMode = mode;
+ auto process = tc->getProcessPtr();
// Adjust path for cwd and redirection
path = process->checkPathRedirect(path);
@@ -1114,6 +1119,14 @@
return 0;
}
+/// Target chmod() handler.
+template <class OS>
+SyscallReturn
+chmodFunc(SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, mode_t
mode)
+{
+ return fchmodatFunc<OS>(desc, tc, OS::TGT_AT_FDCWD, pathname, mode);
+}
+
template <class OS>
SyscallReturn
pollFunc(SyscallDesc *desc, ThreadContext *tc,
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Id3b738fa50d0739da5df856c87a8e172ec7a423a
Gerrit-Change-Number: 51747
Gerrit-PatchSet: 1
Gerrit-Owner: Giacomo Travaglini <[email protected]>
Gerrit-MessageType: newchange
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