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commit b08a6a0dea63742313ed3d9577c1e2d83436b196
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c6d234 |
Author: Stefan Liebler <stli@linux.vnet.ibm.com>
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c6d234 |
Date: Mon Jun 19 16:27:25 2017 +0200
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c6d234 |
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c6d234 |
S390: Sync ptrace.h with kernel. [BZ #21539]
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c6d234 |
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c6d234 |
This patch removes PTRACE_GETREGS, PTRACE_SETREGS, PTRACE_GETFPREGS
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c6d234 |
and PTRACE_SETFPREGS as these requests does not exist on s390 kernel.
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c6d234 |
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c6d234 |
But the kernel has support for PTRACE_SINGLEBLOCK,
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c6d234 |
PTRACE_SECCOMP_GET_FILTER, PTRACE_PEEKUSR_AREA, PTRACE_POKEUSR_AREA,
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c6d234 |
PTRACE_GET_LAST_BREAK, PTRACE_ENABLE_TE, PTRACE_DISABLE_TE and
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c6d234 |
PTRACE_TE_ABORT_RAND. Thus those are defined now.
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c6d234 |
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c6d234 |
The current kernel s390 specific ptrace.h file also defines
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c6d234 |
PTRACE_PEEKTEXT_AREA, PTRACE_PEEKDATA_AREA, PTRACE_POKETEXT_AREA,
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c6d234 |
PTRACE_POKEDATA_AREA, PTRACE_PEEK_SYSTEM_CALL, PTRACE_POKE_SYSTEM_CALL
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c6d234 |
and PTRACE_PROT, but those requests are not supported.
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c6d234 |
Thus those defines are skipped in glibc ptrace.h.
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c6d234 |
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c6d234 |
There were old includes of ptrace.h in sysdeps/s390/fpu/fesetenv.c.
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c6d234 |
The ptrace feature isn't used there anymore, thus I removed the includes.
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c6d234 |
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c6d234 |
Before this patch, <glibc>/sysdeps/unix/sysv/linux/s390/sys/ptrace.h
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c6d234 |
uses ptrace-request 12 for PTRACE_GETREGS,
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c6d234 |
but <kernel>/include/uapi/linux/ptrace.h uses 12 for PTRACE_SINGLEBLOCK.
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c6d234 |
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c6d234 |
The s390 kernel has never had support for PTRACE_GETREGS!
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c6d234 |
Thus glibc ptrace.h is adjusted to match kernel ptrace.h.
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c6d234 |
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c6d234 |
The new s390 specific test ensures, that PTRACE_SINGLEBLOCK defined
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c6d234 |
in glibc works as expected. If the kernel would interpret it as
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PTRACE_GETREGS, then the testcase will not make any progress
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c6d234 |
and will time out.
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c6d234 |
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c6d234 |
ChangeLog:
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c6d234 |
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c6d234 |
[BZ #21539]
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c6d234 |
* NEWS: Mention s390 ptrace request changes.
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c6d234 |
* sysdeps/unix/sysv/linux/s390/sys/ptrace.h
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c6d234 |
(PTRACE_GETREGS, PTRACE_SETREGS, PTRACE_GETFPREGS,
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c6d234 |
PTRACE_SETFPREGS): Remove enum constant.
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(PT_GETREGS, PT_SETREGS, PT_GETFPREGS, T_SETFPREGS):
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c6d234 |
Remove defines.
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c6d234 |
(PTRACE_SINGLEBLOCK): New enum constant.
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c6d234 |
(PT_STEPBLOCK): New define.
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(PTRACE_PEEKUSR_AREA, PTRACE_POKEUSR_AREA,
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PTRACE_GET_LAST_BREAK, PTRACE_ENABLE_TE, PTRACE_DISABLE_TE,
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c6d234 |
PTRACE_TE_ABORT_RAND): New enum constant and define.
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* sysdeps/s390/fpu/fesetenv.c: Remove ptrace.h includes.
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* sysdeps/unix/sysv/linux/s390/tst-ptrace-singleblock.c:
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c6d234 |
New file.
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c6d234 |
* sysdeps/unix/sysv/linux/s390/Makefile: Add test.
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c6d234 |
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diff --git a/sysdeps/s390/fpu/fesetenv.c b/sysdeps/s390/fpu/fesetenv.c
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index 4c9bcf0..0f64a3f 100644
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c6d234 |
--- a/sysdeps/s390/fpu/fesetenv.c
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+++ b/sysdeps/s390/fpu/fesetenv.c
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@@ -20,8 +20,6 @@
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#include <fenv_libc.h>
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#include <fpu_control.h>
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#include <stddef.h>
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c6d234 |
-#include <asm/ptrace.h>
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c6d234 |
-#include <sys/ptrace.h>
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#include <unistd.h>
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c6d234 |
int
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diff --git a/sysdeps/unix/sysv/linux/s390/sys/ptrace.h b/sysdeps/unix/sysv/linux/s390/sys/ptrace.h
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index 7caf101..88079fc 100644
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c6d234 |
--- a/sysdeps/unix/sysv/linux/s390/sys/ptrace.h
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c6d234 |
+++ b/sysdeps/unix/sysv/linux/s390/sys/ptrace.h
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c6d234 |
@@ -89,25 +89,9 @@ enum __ptrace_request
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c6d234 |
PTRACE_SINGLESTEP = 9,
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c6d234 |
#define PT_STEP PTRACE_SINGLESTEP
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c6d234 |
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c6d234 |
- /* Get all general purpose registers used by a processes.
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c6d234 |
- This is not supported on all machines. */
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c6d234 |
- PTRACE_GETREGS = 12,
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c6d234 |
-#define PT_GETREGS PTRACE_GETREGS
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-
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c6d234 |
- /* Set all general purpose registers used by a processes.
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c6d234 |
- This is not supported on all machines. */
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c6d234 |
- PTRACE_SETREGS = 13,
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c6d234 |
-#define PT_SETREGS PTRACE_SETREGS
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c6d234 |
-
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c6d234 |
- /* Get all floating point registers used by a processes.
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c6d234 |
- This is not supported on all machines. */
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c6d234 |
- PTRACE_GETFPREGS = 14,
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c6d234 |
-#define PT_GETFPREGS PTRACE_GETFPREGS
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-
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c6d234 |
- /* Set all floating point registers used by a processes.
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- This is not supported on all machines. */
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- PTRACE_SETFPREGS = 15,
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-#define PT_SETFPREGS PTRACE_SETFPREGS
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+ /* Execute process until next taken branch. */
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+ PTRACE_SINGLEBLOCK = 12,
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+#define PT_STEPBLOCK PTRACE_SINGLEBLOCK
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/* Attach to a process that is already running. */
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PTRACE_ATTACH = 16,
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@@ -167,8 +151,26 @@ enum __ptrace_request
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c6d234 |
PTRACE_SETSIGMASK = 0x420b,
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#define PTRACE_SETSIGMASK PTRACE_SETSIGMASK
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- PTRACE_SECCOMP_GET_FILTER = 0x420c
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c6d234 |
+ PTRACE_SECCOMP_GET_FILTER = 0x420c,
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#define PTRACE_SECCOMP_GET_FILTER PTRACE_SECCOMP_GET_FILTER
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+
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+ PTRACE_PEEKUSR_AREA = 0x5000,
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+#define PTRACE_PEEKUSR_AREA PTRACE_PEEKUSR_AREA
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+
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+ PTRACE_POKEUSR_AREA = 0x5001,
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+#define PTRACE_POKEUSR_AREA PTRACE_POKEUSR_AREA
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+
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+ PTRACE_GET_LAST_BREAK = 0x5006,
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+#define PTRACE_GET_LAST_BREAK PTRACE_GET_LAST_BREAK
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+
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+ PTRACE_ENABLE_TE = 0x5009,
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+#define PTRACE_ENABLE_TE PTRACE_ENABLE_TE
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+
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c6d234 |
+ PTRACE_DISABLE_TE = 0x5010,
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+#define PTRACE_DISABLE_TE PTRACE_DISABLE_TE
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+
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+ PTRACE_TE_ABORT_RAND = 0x5011
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c6d234 |
+#define PTRACE_TE_ABORT_RAND PTRACE_TE_ABORT_RAND
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};
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