commit 4f4e5567f856d9b841494b3b5216a37d2952ee54
author Richard Henderson <richard.henderson@linaro.org> Thu Jan 06 14:57:38 2022 -0800
committer Laurent Vivier <laurent@vivier.eu> Tue Jan 11 18:40:44 2022 +0100
tree 01d2b2b2a3a319c45231d610786d3dde5cea8da9
parent f746c65909ee6df4b560804bc152cdb3e9ad9bf8

linux-user: Implement capability prctls

This is PR_CAPBSET_READ, PR_CAPBSET_DROP and the "legacy"
PR_CAP_AMBIENT PR_GET_SECUREBITS, PR_SET_SECUREBITS.

All of these arguments are integer values only, and do not
require mapping of values between host and guest.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220106225738.103012-5-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/syscall.c

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index f9ae632..5950222 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6504,10 +6504,15 @@
     case PR_SET_UNALIGN:
         return do_prctl_set_unalign(env, arg2);
 
+    case PR_CAP_AMBIENT:
+    case PR_CAPBSET_READ:
+    case PR_CAPBSET_DROP:
     case PR_GET_DUMPABLE:
     case PR_SET_DUMPABLE:
     case PR_GET_KEEPCAPS:
     case PR_SET_KEEPCAPS:
+    case PR_GET_SECUREBITS:
+    case PR_SET_SECUREBITS:
     case PR_GET_TIMING:
     case PR_SET_TIMING:
     case PR_GET_TIMERSLACK: