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http://sourceware.org/ml/gdb-patches/2014-02/msg00179.html
Subject: [obv] testsuite: Fix i386-sse-stack-align.exp regression since GDB_PARALLEL
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Hi Tom,
$ make check//unix/-m32 RUNTESTFLAGS="gdb.arch/i386-sse-stack-align.exp GDB_PARALLEL=1"
[...]
Running /home/jkratoch/redhat/gdb-clean/gdb/testsuite/gdb.arch/i386-sse-stack-align.exp ...
ERROR: (/home/jkratoch/redhat/gdb-clean/gdb/testsuite.unix.-m32/outputs/gdb.arch/i386-sse-stack-align/i386-sse-stack-align) No such file or directory
Checked in.
Jan
--u3/rZRmxL6MmkK24
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commit 3c77faf33dc4c7bb693f05f44077ed687e9f8217
Author: Jan Kratochvil <jan.kratochvil@redhat.com>
Date: Thu Feb 6 23:14:20 2014 +0100
Fix i386-sse-stack-align.exp regression since GDB_PARALLEL.
gdb/testsuite/
2014-02-06 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix i386-sse-stack-align.exp regression since GDB_PARALLEL.
* gdb.arch/i386-sse-stack-align.exp: Use standard_output_file.
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 8c846b8..13ccaf3 100644
### a/gdb/testsuite/ChangeLog
### b/gdb/testsuite/ChangeLog
## -1,3 +1,8 @@
+2014-02-06 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ Fix i386-sse-stack-align.exp regression since GDB_PARALLEL.
+ * gdb.arch/i386-sse-stack-align.exp: Use standard_output_file.
+
2014-02-06 Doug Evans <xdje42@gmail.com>
* gdb.python/py-breakpoint.exp (test_bkpt_eval_funcs): Update expected
diff --git a/gdb/testsuite/gdb.arch/i386-sse-stack-align.exp b/gdb/testsuite/gdb.arch/i386-sse-stack-align.exp
index b5a7e1e..462df1f 100644
--- a/gdb/testsuite/gdb.arch/i386-sse-stack-align.exp
+++ b/gdb/testsuite/gdb.arch/i386-sse-stack-align.exp
@@ -22,7 +22,7 @@ set testfile "i386-sse-stack-align"
set srcfile ${testfile}.S
set csrcfile ${testfile}.c
set executable ${testfile}
-set binfile ${objdir}/${subdir}/${executable}
+set binfile [standard_output_file ${executable}]
set opts {}
if [info exists COMPILE] {
--u3/rZRmxL6MmkK24--
commit 20dca09662aa0d2706fbe325b8f448ef74773028
Author: Andreas Arnez <arnez@linux.vnet.ibm.com>
Date: Tue May 13 14:55:53 2014 +0200
PR target/16940 S390: Fix erroneous offset in fill_gregset.
This fixes a bug that leads to various failures when debugging a
31-bit inferior with a 64-bit gdb on s390x.
Conflicts:
gdb/ChangeLog
### a/gdb/ChangeLog
### b/gdb/ChangeLog
## -1,3 +1,9 @@
+2014-05-13 Andreas Arnez <arnez@vnet.linux.ibm.com>
+
+ PR target/16940
+ * s390-linux-nat.c (fill_gregset): Remove erroneous offset 4 in
+ call to regcache_raw_collect.
+
2014-05-05 Joel Brobecker <brobecker@adacore.com>
* version.in: Set GDB version number to 7.7.1.DATE-cvs.
--- a/gdb/s390-linux-nat.c
+++ b/gdb/s390-linux-nat.c
@@ -164,7 +164,7 @@ fill_gregset (const struct regcache *regcache, gregset_t *regp, int regno)
memset (p, 0, 4);
p += 4;
}
- regcache_raw_collect (regcache, reg, p + 4);
+ regcache_raw_collect (regcache, reg, p);
}
}
https://bugzilla.redhat.com/show_bug.cgi?id=1086894
commit f2205de0080d999c9b67872c9db471c31b53e378
Author: Hui Zhu <teawater@gmail.com>
Date: Tue May 20 13:19:06 2014 +0800
Fix issue #15778: GDB Aarch64 signal frame unwinder issue
The root cause of this issue is unwinder of "#3 <signal handler called>"
doesn't supply right values of registers.
When GDB want to get the previous frame of "#3 <signal handler called>",
it will call cache init function of unwinder "aarch64_linux_sigframe_init".
The address or the value of the registers is get from this function.
So the bug is inside thie function.
I check the asm code of "#3 <signal handler called>":
(gdb) frame 3
(gdb) p $pc
$1 = (void (*)()) 0x7f931fa4d0
(gdb) disassemble $pc, +10
Dump of assembler code from 0x7f931fa4d0 to 0x7f931fa4da:
=> 0x0000007f931fa4d0: mov x8, #0x8b // #139
0x0000007f931fa4d4: svc #0x0
0x0000007f931fa4d8: nop
This is the syscall sys_rt_sigreturn, Linux kernel function "restore_sigframe"
will set the frame:
for (i = 0; i < 31; i++)
__get_user_error(regs->regs[i], &sf->uc.uc_mcontext.regs[i],
err);
__get_user_error(regs->sp, &sf->uc.uc_mcontext.sp, err);
__get_user_error(regs->pc, &sf->uc.uc_mcontext.pc, err);
The struct of uc_mcontext is:
struct sigcontext {
__u64 fault_address;
/* AArch64 registers */
__u64 regs[31];
__u64 sp;
__u64 pc;
__u64 pstate;
/* 4K reserved for FP/SIMD state and future expansion */
__u8 __reserved[4096] __attribute__((__aligned__(16)));
};
But in GDB function "aarch64_linux_sigframe_init", the code the get address
of registers is:
for (i = 0; i < 31; i++)
{
trad_frame_set_reg_addr (this_cache,
AARCH64_X0_REGNUM + i,
sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
+ i * AARCH64_SIGCONTEXT_REG_SIZE);
}
trad_frame_set_reg_addr (this_cache, AARCH64_FP_REGNUM, fp);
trad_frame_set_reg_addr (this_cache, AARCH64_LR_REGNUM, fp + 8);
trad_frame_set_reg_addr (this_cache, AARCH64_PC_REGNUM, fp + 8);
The code that get pc and sp is not right, so I change the code according
to Linux kernel code:
trad_frame_set_reg_addr (this_cache, AARCH64_SP_REGNUM,
sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
+ 31 * AARCH64_SIGCONTEXT_REG_SIZE);
trad_frame_set_reg_addr (this_cache, AARCH64_PC_REGNUM,
sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
+ 32 * AARCH64_SIGCONTEXT_REG_SIZE);
The issue was fixed by this change, and I did the regression test. It
also fixed a lot of other XFAIL and FAIL.
2014-05-20 Hui Zhu <hui@codesourcery.com>
Yao Qi <yao@codesourcery.com>
PR backtrace/16558
* aarch64-linux-tdep.c (aarch64_linux_sigframe_init): Update comments
and change address of sp and pc.
### a/gdb/ChangeLog
### b/gdb/ChangeLog
## -1,3 +1,10 @@
+2014-05-20 Hui Zhu <hui@codesourcery.com>
+ Yao Qi <yao@codesourcery.com>
+
+ PR backtrace/16558
+ * aarch64-linux-tdep.c (aarch64_linux_sigframe_init): Update comments
+ and change address of sp and pc.
+
2014-05-19 Tom Tromey <tromey@redhat.com>
* gdbtypes.c (rank_function): Use XNEWVEC.
--- a/gdb/aarch64-linux-tdep.c
+++ b/gdb/aarch64-linux-tdep.c
@@ -53,28 +53,30 @@
/* Signal frame handling.
- +----------+ ^
- | saved lr | |
- +->| saved fp |--+
- | | |
- | | |
- | +----------+
- | | saved lr |
- +--| saved fp |
- ^ | |
- | | |
- | +----------+
- ^ | |
- | | signal |
- | | |
- | | saved lr |-->interrupted_function_pc
- +--| saved fp |
- | +----------+
- | | saved lr |--> default_restorer (movz x8, NR_sys_rt_sigreturn; svc 0)
- +--| saved fp |<- FP
- | |
- | |<- SP
- +----------+
+ +------------+ ^
+ | saved lr | |
+ +->| saved fp |--+
+ | | |
+ | | |
+ | +------------+
+ | | saved lr |
+ +--| saved fp |
+ ^ | |
+ | | |
+ | +------------+
+ ^ | |
+ | | signal |
+ | | | SIGTRAMP_FRAME (struct rt_sigframe)
+ | | saved regs |
+ +--| saved sp |--> interrupted_sp
+ | | saved pc |--> interrupted_pc
+ | | |
+ | +------------+
+ | | saved lr |--> default_restorer (movz x8, NR_sys_rt_sigreturn; svc 0)
+ +--| saved fp |<- FP
+ | | NORMAL_FRAME
+ | |<- SP
+ +------------+
On signal delivery, the kernel will create a signal handler stack
frame and setup the return address in LR to point at restorer stub.
@@ -123,6 +125,8 @@
d28015a8 movz x8, #0xad
d4000001 svc #0x0
+ This is a system call sys_rt_sigreturn.
+
We detect signal frames by snooping the return code for the restorer
instruction sequence.
@@ -146,7 +150,6 @@ aarch64_linux_sigframe_init (const struct tramp_frame *self,
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
CORE_ADDR sp = get_frame_register_unsigned (this_frame, AARCH64_SP_REGNUM);
- CORE_ADDR fp = get_frame_register_unsigned (this_frame, AARCH64_FP_REGNUM);
CORE_ADDR sigcontext_addr =
sp
+ AARCH64_RT_SIGFRAME_UCONTEXT_OFFSET
@@ -160,12 +163,14 @@ aarch64_linux_sigframe_init (const struct tramp_frame *self,
sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
+ i * AARCH64_SIGCONTEXT_REG_SIZE);
}
-
- trad_frame_set_reg_addr (this_cache, AARCH64_FP_REGNUM, fp);
- trad_frame_set_reg_addr (this_cache, AARCH64_LR_REGNUM, fp + 8);
- trad_frame_set_reg_addr (this_cache, AARCH64_PC_REGNUM, fp + 8);
-
- trad_frame_set_id (this_cache, frame_id_build (fp, func));
+ trad_frame_set_reg_addr (this_cache, AARCH64_SP_REGNUM,
+ sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
+ + 31 * AARCH64_SIGCONTEXT_REG_SIZE);
+ trad_frame_set_reg_addr (this_cache, AARCH64_PC_REGNUM,
+ sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
+ + 32 * AARCH64_SIGCONTEXT_REG_SIZE);
+
+ trad_frame_set_id (this_cache, frame_id_build (sp, func));
}
static const struct tramp_frame aarch64_linux_rt_sigframe =
Bug 1102624 - latest gdb -15 build is FTBFS on aarch64
https://bugzilla.redhat.com/show_bug.cgi?id=1102624
commit 036cd38182bde32d8297b630cd5c861d53b8949e
Author: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
Date: Thu May 22 16:07:20 2014 +0100
Include asm/ptrace.h in aarch64-linux-nat.c
A recent change to glibc removed asm/ptrace.h from user.h for
AArch64. This meant that cross-native builds of gdb using trunk
glibc broke because aarch64-linux-nat.c because user_hwdebug_state
couldn't be found.
Fixed by including asm/ptrace.h like other ports.
2014-05-22 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
* aarch64-linux-nat.c (asm/ptrace.h): Include.
### a/gdb/ChangeLog
### b/gdb/ChangeLog
## -1,5 +1,9 @@
2014-05-22 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
+ * aarch64-linux-nat.c (asm/ptrace.h): Include.
+
+2014-05-22 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
+
* MAINTAINERS (Write After Approval): Move self back from
paper trail.
--- a/gdb/aarch64-linux-nat.c
+++ b/gdb/aarch64-linux-nat.c
@@ -33,6 +33,7 @@
#include <sys/ptrace.h>
#include <sys/utsname.h>
+#include <asm/ptrace.h>
#include "gregset.h"
commit e9dae05e9c32efda9724330c6d5ade3ca848591d
Author: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
Date: Fri May 23 09:01:14 2014 +0100
Include asm/ptrace.h for linux-aarch64-low.c
A recent change to glibc removed asm/ptrace.h from user.h for AArch64.
This meant that cross-native builds of gdbserver using trunk glibc broke
because linux-aarch64-low.c because user_hwdebug_state couldn't be found.
This is like commit #036cd38182bde32d8297b630cd5c861d53b8949e
2014-05-23 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
* linux-aarch64-low.c (asm/ptrace.h): Include.
### a/gdb/gdbserver/ChangeLog
### b/gdb/gdbserver/ChangeLog
## -1,3 +1,7 @@
+2014-05-23 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
+
+ * linux-aarch64-low.c (asm/ptrace.h): Include.
+
2014-05-21 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix TLS access for -static -pthread.
--- a/gdb/gdbserver/linux-aarch64-low.c
+++ b/gdb/gdbserver/linux-aarch64-low.c
@@ -26,6 +26,7 @@
#include <signal.h>
#include <sys/user.h>
#include <sys/ptrace.h>
+#include <asm/ptrace.h>
#include <sys/uio.h>
#include "gdb_proc_service.h"
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