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[patch 2/2] Implement reglocs for s390/s390x
- From: Jan Kratochvil <jan dot kratochvil at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Tue, 29 Jan 2013 19:25:59 +0100
- Subject: [patch 2/2] Implement reglocs for s390/s390x
Hi Mark,
jankratochvil/s390-core
it inherits:
jankratochvil/s390-core-readelf
On Tue, 29 Jan 2013 11:22:17 +0100, Mark Wielaard wrote:
> On Wed, 2013-01-23 at 22:13 +0100, Jan Kratochvil wrote:
> > Re: [patch] Implement reglocs for s390/s390x
> > https://lists.fedorahosted.org/pipermail/elfutils-devel/2012-October/002715.html
> > Message-ID: <20121014155013.GA5525@host2.jankratochvil.net>
>
> I admit to be a little lost in the review thread. But it seems to me
> this could be split up between formatting changes (like the \n, b, B
> readelf.c one) and the actual s390_corenote.c change. Would it be
> possible to post this as separate patches (and maybe even split off the
> test addition if that depends on the formatting)?
here is the s390 fix depending on the readelf fix. Testcase is included,
I really do not see why to separate it.
Thanks,
Jan
commit a9186724438a9b735096ece40ecb15bc43e1fbd2
Author: Jan Kratochvil <jan.kratochvil@redhat.com>
Date: Wed Oct 10 19:32:05 2012 +0200
backends/
* Makefile.am (s390_SRCS): Add s390_corenote.c and s390x_corenote.c.
* linux-core-note.c (ALIGN_PR_REG): New definitions.
(struct EBLHOOK(prstatus)): Change field pr_reg to anonymous union with
ALIGN_PR_REG.
(EXTRA_ITEMS): New macro.
* s390_corenote.c: New file.
* s390_init.c (s390x_core_note): New declaration.
(s390_init): Install s390x_core_note and s390_core_note.
* s390x_corenote.c: New file.
tests/
* run-readelf-mixed-corenote.sh: New testcase for readelf -n of s390
and s390x core notes.
* testfile67.bz2: New file.
* testfile68.bz2: New file.
* Makefile.am (EXTRA_DIST): Add testfile67.bz2 and testfile68.bz2 .
Signed-off-by: Jan Kratochvil <jan.kratochvil@redhat.com>
diff --git a/backends/ChangeLog b/backends/ChangeLog
index cca7113..f33cce0 100644
--- a/backends/ChangeLog
+++ b/backends/ChangeLog
@@ -1,3 +1,16 @@
+2013-01-29 Jan Kratochvil <jan.kratochvil@redhat.com>
+ Roland McGrath <roland@hack.frob.com>
+
+ * Makefile.am (s390_SRCS): Add s390_corenote.c and s390x_corenote.c.
+ * linux-core-note.c (ALIGN_PR_REG): New definitions.
+ (struct EBLHOOK(prstatus)): Change field pr_reg to anonymous union with
+ ALIGN_PR_REG.
+ (EXTRA_ITEMS): New macro.
+ * s390_corenote.c: New file.
+ * s390_init.c (s390x_core_note): New declaration.
+ (s390_init): Install s390x_core_note and s390_core_note.
+ * s390x_corenote.c: New file.
+
2012-10-12 Jan Kratochvil <jan.kratochvil@redhat.com>
* linux-core-note.c (prstatus_items): Rename groups of sigpend and
diff --git a/backends/Makefile.am b/backends/Makefile.am
index 982ff2a..283bbfc 100644
--- a/backends/Makefile.am
+++ b/backends/Makefile.am
@@ -94,7 +94,8 @@ ppc64_SRCS = ppc64_init.c ppc64_symbol.c ppc64_retval.c \
libebl_ppc64_pic_a_SOURCES = $(ppc64_SRCS)
am_libebl_ppc64_pic_a_OBJECTS = $(ppc64_SRCS:.c=.os)
-s390_SRCS = s390_init.c s390_symbol.c s390_regs.c s390_retval.c
+s390_SRCS = s390_init.c s390_symbol.c s390_regs.c s390_retval.c \
+ s390_corenote.c s390x_corenote.c
libebl_s390_pic_a_SOURCES = $(s390_SRCS)
am_libebl_s390_pic_a_OBJECTS = $(s390_SRCS:.c=.os)
diff --git a/backends/arm_corenote.c b/backends/arm_corenote.c
index d527944..c5d8d88 100644
--- a/backends/arm_corenote.c
+++ b/backends/arm_corenote.c
@@ -84,7 +84,7 @@ static const Ebl_Core_Item vfp_items[] =
{
.name = "fpscr", .group = "register",
.offset = 0,
- .count = 0, .type = ELF_T_WORD, .format = 'x',
+ .type = ELF_T_WORD, .format = 'x',
},
};
diff --git a/backends/linux-core-note.c b/backends/linux-core-note.c
index b09154f..4f1642d 100644
--- a/backends/linux-core-note.c
+++ b/backends/linux-core-note.c
@@ -42,6 +42,9 @@
#define INT int32_t
#define ALIGN_INT 4
#define TYPE_INT ELF_T_SWORD
+#ifndef ALIGN_PR_REG
+# define ALIGN_PR_REG ALIGN_ULONG
+#endif
#define FIELD(type, name) type name __attribute__ ((aligned (ALIGN_##type)))
@@ -81,7 +84,14 @@ struct EBLHOOK(prstatus)
struct EBLHOOK(timeval) pr_stime;
struct EBLHOOK(timeval) pr_cutime;
struct EBLHOOK(timeval) pr_cstime;
- FIELD (ULONG, pr_reg[PRSTATUS_REGS_SIZE / sizeof (ULONG)]);
+ union
+ {
+ FIELD (ULONG, pr_reg[PRSTATUS_REGS_SIZE / sizeof (ULONG)]);
+ }
+#ifdef ALIGN_PR_REG
+ __attribute__ ((aligned (ALIGN_PR_REG)))
+#endif
+ ;
FIELD (INT, pr_fpvalid);
};
@@ -265,6 +275,17 @@ EBLHOOK(core_note) (nhdr, name, regs_offset, nregloc, reglocs, nitems, items)
*items = extra_items; \
return 1;
+#define EXTRA_ITEMS(type, size, extra_items) \
+ case type: \
+ if (nhdr->n_descsz != size) \
+ return 0; \
+ *regs_offset = 0; \
+ *nregloc = 0; \
+ *reglocs = NULL; \
+ *nitems = sizeof extra_items / sizeof extra_items[0]; \
+ *items = extra_items; \
+ return 1;
+
#ifdef FPREGSET_SIZE
EXTRA_REGSET (NT_FPREGSET, FPREGSET_SIZE, fpregset_regs)
#endif
diff --git a/backends/s390_corenote.c b/backends/s390_corenote.c
new file mode 100644
index 0000000..17cf819
--- /dev/null
+++ b/backends/s390_corenote.c
@@ -0,0 +1,189 @@
+/* S390 specific core note handling.
+ Copyright (C) 2012 Red Hat, Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <elf.h>
+#include <inttypes.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <sys/time.h>
+
+#ifndef BITS
+# define BITS 32
+# define BACKEND s390_
+#else
+# define BITS 64
+# define BACKEND s390x_
+#endif
+#include "libebl_CPU.h"
+
+static const Ebl_Register_Location prstatus_regs[] =
+ {
+#define GR(at, n, dwreg, b) \
+ { .offset = at * BITS/8, .regno = dwreg, .count = n, .bits = b }
+
+ GR ( 0, 1, 64, BITS), /* pswm */
+ GR ( 1, 1, 65, BITS), /* pswa */
+ GR ( 2, 16, 0, BITS), /* r0-r15 */
+ GR (18, 16, 48, 32), /* ar0-ar15 */
+
+#undef GR
+ };
+
+ /* orig_r2 is at offset (BITS == 32 ? 34 * 4 : 26 * 8). */
+#define PRSTATUS_REGS_SIZE (BITS / 8 * (BITS == 32 ? 35 : 27))
+
+static const Ebl_Register_Location fpregset_regs[] =
+ {
+#define FPR(at, n, dwreg) \
+ { .offset = at * 64/8, .regno = dwreg, .count = n, .bits = 64 }
+
+ /* fpc is at offset 0, see fpregset_items, it has no assigned DWARF regno.
+ Bytes at offsets 4 to 7 are unused. */
+ FPR (1 + 0, 1, 16), /* f0 */
+ FPR (1 + 1, 1, 20), /* f1 */
+ FPR (1 + 2, 1, 17), /* f2 */
+ FPR (1 + 3, 1, 21), /* f3 */
+ FPR (1 + 4, 1, 18), /* f4 */
+ FPR (1 + 5, 1, 22), /* f5 */
+ FPR (1 + 6, 1, 19), /* f6 */
+ FPR (1 + 7, 1, 23), /* f7 */
+ FPR (1 + 8, 1, 24), /* f8 */
+ FPR (1 + 9, 1, 28), /* f9 */
+ FPR (1 + 10, 1, 25), /* f10 */
+ FPR (1 + 11, 1, 29), /* f11 */
+ FPR (1 + 12, 1, 26), /* f12 */
+ FPR (1 + 13, 1, 30), /* f13 */
+ FPR (1 + 14, 1, 27), /* f14 */
+ FPR (1 + 15, 1, 31), /* f15 */
+
+#undef FPR
+ };
+
+static const Ebl_Core_Item fpregset_items[] =
+ {
+ {
+ .name = "fpc", .group = "register", .offset = 0, .type = ELF_T_WORD,
+ .format = 'x',
+ },
+ };
+
+/* Do not set FPREGSET_SIZE so that we can supply fpregset_items. */
+#define EXTRA_NOTES_FPREGSET \
+ EXTRA_REGSET_ITEMS (NT_FPREGSET, 17 * 8, fpregset_regs, fpregset_items)
+
+#if BITS == 32
+# define ULONG uint32_t
+# define ALIGN_ULONG 4
+# define TYPE_ULONG ELF_T_WORD
+# define TYPE_LONG ELF_T_SWORD
+# define UID_T uint16_t
+# define GID_T uint16_t
+# define ALIGN_UID_T 2
+# define ALIGN_GID_T 2
+# define TYPE_UID_T ELF_T_HALF
+# define TYPE_GID_T ELF_T_HALF
+#else
+# define ULONG uint64_t
+# define ALIGN_ULONG 8
+# define TYPE_ULONG ELF_T_XWORD
+# define TYPE_LONG ELF_T_SXWORD
+# define UID_T uint32_t
+# define GID_T uint32_t
+# define ALIGN_UID_T 4
+# define ALIGN_GID_T 4
+# define TYPE_UID_T ELF_T_WORD
+# define TYPE_GID_T ELF_T_WORD
+#endif
+#define PID_T int32_t
+#define ALIGN_PID_T 4
+#define TYPE_PID_T ELF_T_SWORD
+/* s390 psw_compat_t has alignment 8 bytes where it is inherited from. */
+#define ALIGN_PR_REG 8
+
+#define PRSTATUS_REGSET_ITEMS \
+ { \
+ .name = "orig_r2", .type = TYPE_LONG, .format = 'd', \
+ .offset = offsetof (struct EBLHOOK(prstatus), \
+ pr_reg[BITS == 32 ? 34 : 26]), \
+ .group = "register" \
+ }
+
+#if BITS == 32
+
+static const Ebl_Core_Item high_regs_items[] =
+ {
+#define HR(n) \
+ { \
+ .name = "high_r" #n , .group = "register", .offset = (n) * 4, \
+ .type = ELF_T_WORD, .format = 'x', \
+ }
+
+ /* Upper halves of r0-r15 are stored here.
+ FIXME: They are currently not combined with the r0-r15 lower halves. */
+ HR (0), HR (1), HR (2), HR (3), HR (4), HR (5), HR (6), HR (7),
+ HR (8), HR (9), HR (10), HR (11), HR (12), HR (13), HR (14), HR (15)
+
+#undef HR
+ };
+
+#define EXTRA_NOTES_HIGH_GPRS \
+ EXTRA_ITEMS (NT_S390_HIGH_GPRS, 16 * 4, high_regs_items)
+
+#else /* BITS == 64 */
+
+#define EXTRA_NOTES_HIGH_GPRS
+
+#endif /* BITS == 64 */
+
+static const Ebl_Core_Item last_break_items[] =
+ {
+ {
+ .name = "last_break", .group = "system", .offset = BITS == 32 ? 4 : 0,
+ .type = BITS == 32 ? ELF_T_WORD : ELF_T_XWORD, .format = 'x',
+ },
+ };
+
+static const Ebl_Core_Item system_call_items[] =
+ {
+ {
+ .name = "system_call", .group = "system", .offset = 0, .type = ELF_T_WORD,
+ .format = 'd',
+ },
+ };
+
+#define EXTRA_NOTES \
+ EXTRA_NOTES_FPREGSET \
+ EXTRA_NOTES_HIGH_GPRS \
+ EXTRA_ITEMS (NT_S390_LAST_BREAK, 8, last_break_items) \
+ EXTRA_ITEMS (NT_S390_SYSTEM_CALL, 4, system_call_items)
+
+#include "linux-core-note.c"
diff --git a/backends/s390_init.c b/backends/s390_init.c
index 528e357..91fe4b8 100644
--- a/backends/s390_init.c
+++ b/backends/s390_init.c
@@ -37,6 +37,8 @@
/* This defines the common reloc hooks based on arm_reloc.def. */
#include "common-reloc.c"
+extern __typeof (s390_core_note) s390x_core_note;
+
const char *
s390_init (elf, machine, eh, ehlen)
@@ -55,6 +57,10 @@ s390_init (elf, machine, eh, ehlen)
HOOK (eh, reloc_simple_type);
HOOK (eh, register_info);
HOOK (eh, return_value_location);
+ if (eh->class == ELFCLASS64)
+ eh->core_note = s390x_core_note;
+ else
+ HOOK (eh, core_note);
/* Only the 64-bit format uses the incorrect hash table entry size. */
if (eh->class == ELFCLASS64)
diff --git a/backends/s390x_corenote.c b/backends/s390x_corenote.c
new file mode 100644
index 0000000..427bf7d
--- /dev/null
+++ b/backends/s390x_corenote.c
@@ -0,0 +1,2 @@
+#define BITS 64
+#include "s390_corenote.c"
diff --git a/tests/ChangeLog b/tests/ChangeLog
index bc721c7..e363a17 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,11 @@
+2013-01-29 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ * run-readelf-mixed-corenote.sh: New testcase for readelf -n of s390
+ and s390x core notes.
+ * testfile67.bz2: New file.
+ * testfile68.bz2: New file.
+ * Makefile.am (EXTRA_DIST): Add testfile67.bz2 and testfile68.bz2 .
+
2013-01-23 Mark Wielaard <mjw@redhat.com>
* testfilebasmin.bz2: New testfile.
diff --git a/tests/Makefile.am b/tests/Makefile.am
index f32ea24..e8efcd0 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -185,7 +185,8 @@ EXTRA_DIST = run-arextract.sh run-arsymtest.sh \
testfile60.bz2 testfile61.bz2 \
run-readelf-vmcoreinfo.sh testfile62.bz2 \
run-readelf-mixed-corenote.sh testfile63.bz2 testfile64.bz2 \
- testfile65.bz2 testfile69.core.bz2 testfile69.so.bz2 \
+ testfile65.bz2 testfile67.bz2 testfile68.bz2 \
+ testfile69.core.bz2 testfile69.so.bz2 \
testfile70.core.bz2 testfile70.exec.bz2
if USE_VALGRIND
diff --git a/tests/run-readelf-mixed-corenote.sh b/tests/run-readelf-mixed-corenote.sh
index f9b96c8..3c4ec51 100755
--- a/tests/run-readelf-mixed-corenote.sh
+++ b/tests/run-readelf-mixed-corenote.sh
@@ -84,4 +84,137 @@ Note segment of 892 bytes at offset 0x274:
d30: 0x0000000000000000 d31: 0x0000000000000000
EOF
+testfiles testfile67
+testrun_compare ../src/readelf -n testfile67 <<\EOF
+
+Note segment of 1044 bytes at offset 0xe8:
+ Owner Data size Type
+ CORE 336 PRSTATUS
+ info.si_signo: 4, info.si_code: 0, info.si_errno: 0, cursig: 4
+ sigpend: <>
+ sighold: <>
+ pid: 805, ppid: 804, pgrp: 804, sid: 699
+ utime: 0.000042, stime: 0.000103, cutime: 0.000000, cstime: 0.000000
+ orig_r2: 2571552016, fpvalid: 1
+ pswm: 0x0705c00180000000 pswa: 0x00000000800000d6
+ r0: 4393751543808 r1: 4398002544388
+ r2: 11 r3: 2571578208
+ r4: 2571702016 r5: 4398003235624
+ r6: 2571580768 r7: 2571702016
+ r8: 2571578208 r9: 2571552016
+ r10: 2571552016 r11: 0
+ r12: 4398003499008 r13: 2148274656
+ r14: 0 r15: 4398040761216
+ a0: 0x000003ff a1: 0xfd54a6f0 a2: 0x00000000 a3: 0x00000000
+ a4: 0x00000000 a5: 0x00000000 a6: 0x00000000 a7: 0x00000000
+ a8: 0x00000000 a9: 0x00000000 a10: 0x00000000 a11: 0x00000000
+ a12: 0x00000000 a13: 0x00000000 a14: 0x00000000 a15: 0x00000000
+ CORE 136 PRPSINFO
+ state: 0, sname: R, zomb: 0, nice: 0, flag: 0x0000000000400400
+ uid: 0, gid: 0, pid: 805, ppid: 804, pgrp: 804, sid: 699
+ fname: 1, psargs: ./1
+ CORE 304 AUXV
+ SYSINFO_EHDR: 0
+ HWCAP: 0x37f
+ PAGESZ: 4096
+ CLKTCK: 100
+ PHDR: 0x80000040
+ PHENT: 56
+ PHNUM: 2
+ BASE: 0
+ FLAGS: 0
+ ENTRY: 0x800000d4
+ UID: 0
+ EUID: 0
+ GID: 0
+ EGID: 0
+ SECURE: 0
+ RANDOM: 0x3ffffa8463c
+ EXECFN: 0x3ffffa85ff4
+ PLATFORM: 0x3ffffa8464c
+ NULL
+ CORE 136 FPREGSET
+ fpc: 0x00000000
+ f0: 0x0000000000000040 f1: 0x4b00000000000000
+ f2: 0x0000000000000041 f3: 0x3ad50b5555555600
+ f4: 0x0000000000000000 f5: 0x0000000000000000
+ f6: 0x0000000000000000 f7: 0x0000000000000000
+ f8: 0x0000000000000000 f9: 0x0000000000000000
+ f10: 0x0000000000000000 f11: 0x0000000000000000
+ f12: 0x0000000000000000 f13: 0x0000000000000000
+ f14: 0x0000000000000000 f15: 0x0000000000000000
+ LINUX 8 S390_LAST_BREAK
+ last_break: 0x000003fffd75ccbe
+ LINUX 4 S390_SYSTEM_CALL
+ system_call: 0
+EOF
+
+testfiles testfile68
+testrun_compare ../src/readelf -n testfile68 <<\EOF
+
+Note segment of 852 bytes at offset 0x94:
+ Owner Data size Type
+ CORE 224 PRSTATUS
+ info.si_signo: 4, info.si_code: 0, info.si_errno: 0, cursig: 4
+ sigpend: <>
+ sighold: <>
+ pid: 839, ppid: 838, pgrp: 838, sid: 699
+ utime: 0.000043, stime: 0.000102, cutime: 0.000000, cstime: 0.000000
+ orig_r2: -1723388288, fpvalid: 1
+ pswm: 0x070dc000 pswa: 0x8040009a
+ r0: 0 r1: -43966716 r2: 11 r3: -1723238816
+ r4: -1723265280 r5: -43275480 r6: -1723245280 r7: -1723265280
+ r8: -1723238816 r9: -1723388288 r10: -1723388288 r11: 0
+ r12: -43012096 r13: -2146692640 r14: 0 r15: 2139883440
+ a0: 0x000003ff a1: 0xfd54a6f0 a2: 0x00000000 a3: 0x00000000
+ a4: 0x00000000 a5: 0x00000000 a6: 0x00000000 a7: 0x00000000
+ a8: 0x00000000 a9: 0x00000000 a10: 0x00000000 a11: 0x00000000
+ a12: 0x00000000 a13: 0x00000000 a14: 0x00000000 a15: 0x00000000
+ CORE 124 PRPSINFO
+ state: 0, sname: R, zomb: 0, nice: 0, flag: 0x00400400
+ uid: 0, gid: 0, pid: 839, ppid: 838, pgrp: 838, sid: 699
+ fname: 2, psargs: ./2
+ CORE 152 AUXV
+ SYSINFO_EHDR: 0
+ HWCAP: 0x37f
+ PAGESZ: 4096
+ CLKTCK: 100
+ PHDR: 0x400034
+ PHENT: 32
+ PHNUM: 2
+ BASE: 0
+ FLAGS: 0
+ ENTRY: 0x400098
+ UID: 0
+ EUID: 0
+ GID: 0
+ EGID: 0
+ SECURE: 0
+ RANDOM: 0x7f8c090c
+ EXECFN: 0x7f8c1ff4
+ PLATFORM: 0x7f8c091c
+ NULL
+ CORE 136 FPREGSET
+ fpc: 0x00000000
+ f0: 0x0000000000000040 f1: 0x4b00000000000000
+ f2: 0x0000000000000041 f3: 0x3ad50b5555555600
+ f4: 0x0000000000000000 f5: 0x0000000000000000
+ f6: 0x0000000000000000 f7: 0x0000000000000000
+ f8: 0x0000000000000000 f9: 0x0000000000000000
+ f10: 0x0000000000000000 f11: 0x0000000000000000
+ f12: 0x0000000000000000 f13: 0x0000000000000000
+ f14: 0x0000000000000000 f15: 0x0000000000000000
+ LINUX 8 S390_LAST_BREAK
+ last_break: 0xfd75ccbe
+ LINUX 4 S390_SYSTEM_CALL
+ system_call: 0
+ LINUX 64 S390_HIGH_GPRS
+ high_r0: 0x000003ff, high_r1: 0x000003ff, high_r2: 0x00000000
+ high_r3: 0x00000000, high_r4: 0x00000000, high_r5: 0x000003ff
+ high_r6: 0x00000000, high_r7: 0x00000000, high_r8: 0x00000000
+ high_r9: 0x00000000, high_r10: 0x00000000, high_r11: 0x00000000
+ high_r12: 0x000003ff, high_r13: 0x00000000, high_r14: 0x00000000
+ high_r15: 0x00000000
+EOF
+
exit 0
diff --git a/tests/testfile67.bz2 b/tests/testfile67.bz2
new file mode 100644
index 0000000000000000000000000000000000000000..bb64745db70a79db3a6182241fe77b0fcaf49144
GIT binary patch
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literal 0
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diff --git a/tests/testfile68.bz2 b/tests/testfile68.bz2
new file mode 100644
index 0000000000000000000000000000000000000000..3fe67921ff46f4b00d215577798c9aac17329e81
GIT binary patch
literal 399
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literal 0
HcmV?d00001