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pseudo: add macro guard for seccomp

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It fails to compile pseudo-native on centos 7:

| ports/linux/pseudo_wrappers.c: In function ‘prctl’:
| ports/linux/pseudo_wrappers.c:129:14: error: ‘SECCOMP_SET_MODE_FILTER’ undeclared (first use in this function)
|    if (cmd == SECCOMP_SET_MODE_FILTER) {
|               ^

Add macro guard for the definition to avoid the failure.

(From OE-Core rev: d1c4492cb9cf5a624bb996c94e9a1589133be014)

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Kai Kang
2020-04-27 14:04:16 +08:00
committed by Richard Purdie
parent 48a8eb0fc2
commit 430ef75dcf
1 changed files with 14 additions and 1 deletions
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15
meta/recipes-devtools/pseudo/files/seccomp.patch
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@@ -7,6 +7,17 @@ Upstream-Status: Pending
RP 2020/4/3
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
It fails to compile pseudo-native on centos 7:
| ports/linux/pseudo_wrappers.c: In function ‘prctl’:
| ports/linux/pseudo_wrappers.c:129:14: error: ‘SECCOMP_SET_MODE_FILTER’ undeclared (first use in this function)
| if (cmd == SECCOMP_SET_MODE_FILTER) {
| ^
Add macro guard for seccomp to avoid the failure.
Signed-off-by: Kai Kang <kai.kang@windriver.com>
Index: git/ports/linux/pseudo_wrappers.c
===================================================================
--- git.orig/ports/linux/pseudo_wrappers.c
@@ -40,7 +51,7 @@ Index: git/ports/linux/pseudo_wrappers.c
/* gcc magic to attempt to just pass these args to syscall. we have to
* guess about the number of args; the docs discuss calling conventions
* up to 7, so let's try that?
@@ -92,3 +108,42 @@ static long wrap_syscall(long nr, va_lis
@@ -92,3 +108,44 @@ static long wrap_syscall(long nr, va_lis
(void) ap;
return -1;
}
@@ -56,6 +67,7 @@ Index: git/ports/linux/pseudo_wrappers.c
+ return rc;
+ }
+
+#ifdef SECCOMP_SET_MODE_FILTER
+ /* pseudo and seccomp are incompatible as pseudo uses different syscalls
+ * so pretend to enable seccomp but really do nothing */
+ if (option == PR_SET_SECCOMP) {
@@ -67,6 +79,7 @@ Index: git/ports/linux/pseudo_wrappers.c
+ return 0;
+ }
+ }
+#endif
+
+ /* gcc magic to attempt to just pass these args to prctl. we have to
+ * guess about the number of args; the docs discuss calling conventions