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Author SHA1 Message Date
Tommi Rantala
b4bde18112 Apply UNW_ALIGN more in src/mi/mempool.c 
Apply UNW_ALIGN in a few places in src/mi/mempool.c that I missed in
commit c2f757418 ("Rename and share `ALIGN' macro from
_UCD_internal.h").
 2012-09-28 14:06:07 +03:00
Tommi Rantala
5d0f376b08 Invert tdep_init() flag logic 
Invert the flag that signals that tdep_init() was called, to move the
symbol from data to BSS.
 2012-09-28 14:06:07 +03:00
Tommi Rantala
9a3565ddc1 Simplify `sos_alloc()' implementation 
Instead of maintaining a pointer to the `sos_memory' array, maintain an
index that tells the next free position. When atomic operations are
available, the allocation boils down to a single fetch-and-add
operation.
 2012-09-28 13:52:22 +03:00
Tommi Rantala
26fc1563fb Align `sos_memory' to MAX_ALIGN 
We give aligned pointers from the `sos_memory' array, so any non-aligned
bytes are only wasted.
 2012-09-28 13:52:22 +03:00
Tommi Rantala
c36a14f245 Workaround non-power-of-two i386 sizeof(long double) in src/mi/mempool.c 
To ensure that we return properly aligned pointers from sos_alloc(),
MAX_ALIGN must be a power-of-two. On i386 the power-of-two assumption
fails as sizeof(long double) = 12. Fix this by rounding up to 16.
 2012-09-28 13:52:22 +03:00
Tommi Rantala
e6edad069c Use GCC __BIGGEST_ALIGNMENT__ for sos-pool MAX_ALIGN 
Use the __BIGGEST_ALIGNMENT__ macro provided by GCC for sos_alloc()
allocation alignment. The macro gives ``the largest alignment ever used
for any data type on the target machine you are compiling for.''

__BIGGEST_ALIGNMENT__ also has some other nice properties, e.g. it is
power-of-two on all architectures (note that on i386, sizeof(long
double) = 12), and on some architectures (e.g. SuperH) the alignment
requirement can be lower than sizeof(long double).
 2012-09-28 13:52:21 +03:00
Tommi Rantala
c2f7574187 Rename and share `ALIGN' macro from _UCD_internal.h 
Rename the `ALIGN' macro to `UNW_ALIGN', and move it from
`_UCD_internal.h' to `libunwind_i.h' so that we can share it with the
mempool code. `ALIGN' was clashing with system headers on FreeBSD:

In file included from src/coredump/_UCD_access_reg_freebsd.c:26:
src/coredump/_UCD_internal.h:102:1: warning: "ALIGN" redefined
In file included from /usr/include/sys/param.h:115,
                 from src/coredump/_UCD_lib.h:52,
                 from src/coredump/_UCD_access_reg_freebsd.c:24:
/usr/include/machine/param.h:79:1: warning: this is the location of the previous definition
 2012-09-05 14:02:36 +03:00
Lassi Tuura
ae5c1f2adf Performance optimisations for fast trace. 
Insert static branch prediction predicates in useful places and avoid
unnecessary code in the hottest paths. Bypass unnecessary indirect
calls, in particular to access_mem(), when known to be safe.
 2011-04-17 20:34:38 -07:00
Arun Sharma
e2962af9d3 Implement a cheaper getcontext() 
Since the fast unwinding code path doesn't need the full context,
a faster target dependent getcontext is implemented.

Signed-off-by: Lassi Tuura <lat@cern.ch>
 2011-04-05 22:07:05 -07:00
Lassi Tuura
5f38f35d5d Drop a call frame in tdep_trace and avoid a call to unw_step. 
Dropping the extra frame for unw_backtrace itself using unw_step is
approximately 15% slower than skipping the frame in tdep_trace.  So
drop the frame in the latter, and make the function a private
implementation detail for libunwind, not an exported interface.

Also moves unw_getcontext call back into unw_backtrace to avoid an
extra call frame in case slow_backtrace does not get inlined into
unw_backtrace.
 2011-04-01 00:00:39 -07:00
Lassi Tuura
50bc12afba Export unw_backtrace() and alias backtrace() to it. 2011-04-01 00:00:33 -07:00
Arun Sharma
2f9b04e9c2 Mark slow_backtrace() ALWAYS_INLINE 
Also fix Makefile.am so remote unwinding tests such Gtest-trace
don't link with the local unwind library (libunwind.a).
 2011-03-31 22:58:07 -07:00
Arun Sharma
7ff83c051e Fix up compilation and test failures 2011-03-24 23:32:25 -07:00
Lassi Tuura
44a14d1364 Integrate fast trace into backtrace(). 2011-03-24 22:33:55 -07:00
Konstantin Belousov
093855f12a Remove unneeded includes of sys/types.h 2010-03-08 00:25:22 +02:00
Konstantin Belousov
3eabce18b1 Include sys/types.h when needed. 2010-03-06 16:43:39 +02:00
Daniel Jacobowitz
3842dac733 Add initial ARM and MIPS support. To support this, also enable the 
reading of .debug_frame sections (used in lieu of .eh_frame sections
when they're not available).
 2008-02-04 17:16:37 -07:00
David Mosberger-Tang
f5cb2c52dc 2007-12-14 Mark Wielaard <mwielaard@redhat.com> 
* src/mi/Gget_reg.c (unw_get_reg): Use tdep_get_ip() when
   looking for UNW_REG_IP.
 2008-01-07 15:43:42 -07:00
David Mosberger-Tang
1a0af36731 Fix forgotten copyright year update. 2006-07-26 15:48:48 -06:00
David Mosberger-Tang
6a89d40236 Fix missed "tdep.h" -> "libunwind_i.h" conversions. 2006-07-26 15:44:23 -06:00
David Mosberger-Tang
69d85f7c14 Restore mi/Ldyn-remote.c. 2006-07-26 15:10:48 -06:00
David Mosberger-Tang
ca69fee8bb Merge ../libunwind-v0.98 
Conflicts:

	include/dwarf_i.h
	include/x86/jmpbuf.h
	include/x86_64/jmpbuf.h
	src/hppa/init.h
	src/mi/Gget_fpreg.c
	src/mi/Gset_fpreg.c
	src/mi/strerror.c
 2006-07-25 21:41:43 -06:00
David Mosberger-Tang
f176ad6fc6 Bring git v0.98.5 tree in sync with released v0.98.5. 
Sadly, the conversion from Bitkeeper -> CVS -> git wasn't perfect.  Or
so it seems.
 2006-07-25 21:32:28 -06:00
hp.com!davidm
97b483dcaa Drop include of "mempool.h", which causes problems in the kernel, due to 
a conflicting <linux/mempool.h>.
(SOS_MEMORY_SIZE): Move to libunwind_i.h.

(Logical change 1.295)
 2005-05-20 11:28:16 +00:00
hp.com!davidm
d9e100753f Include "libunwind_i.h" instead of "tdep.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm
07b01ad205 Include "libunwind_i.h" instead of "tdep.h" and "internal.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm
670dd57e82 Include "libunwind_i.h" instead of "libunwind.h" and a whole bunch of standard 
header files.
Use lock_release instead of mutex_unlock/sigprocmask calls.

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm
5724bee8c2 Include "libunwind_i.h" instead of "internal.h". 
(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
hp.com!davidm
71acf1d00e Don't include <stdlib.h>. 
Include "libunwind_i.h" instead of "tdep.h".

(Logical change 1.294)
 2005-05-20 09:48:08 +00:00
mostang.com!davidm
7fbb8a9593 Adjust for sigset_t to intrmask_t renaming. 
(Logical change 1.290)
 2005-05-03 09:13:17 +00:00
hp.com!davidm
b38691980f (sos_alloc): Fix soslock vs. sos_lock typo. 
2005/02/23 14:40:44-08:00 mostang.com!davidm
Adjust for sigset_t to intrmask_t renaming.

(Logical change 1.290)
 2005-05-03 09:13:17 +00:00
hp.com!davidm
15df8b804c (_ReadSLEB): Fix typo: shift needs to be increment before checking 
for loop-exit.  Otherwise, sign-extension may clobber the
	most recently read 7 bits.

(Logical change 1.284)
 2005-02-19 06:15:20 +00:00
hp.com!davidm
d15f52662a (local_find_proc_info): When compiling for libunwind-ia64, declare 
_U_dyn_info_list_addr as weak and if it remained undefined,
	return -UNW_ENOINFO.

(Logical change 1.282)
 2004-11-16 18:47:39 +00:00
bea.com!thallgre
0f818455ce Initial revision 2004-08-18 15:16:46 +00:00
bea.com!thallgre
48cc8c5712 (Logical change 1.245) 2004-08-18 15:16:46 +00:00
mostang.com!davidm
58badbb339 (add_memory): Rephrase for-loop conditional to avoid bug in Intel-compiler 
which gets triggered with -O3 -ip.

(Logical change 1.212)
 2004-04-22 22:36:53 +00:00
mostang.com!davidm
db24e76397 (mi_init): Use assertion instead of relying on compiler-optimization 
to verify that unw_cursor_t is big enough to contain a
	cursor.

(Logical change 1.207)
 2004-04-20 23:46:44 +00:00
hp.com!davidm
36c7442db3 (Logical change 1.205) 2004-04-20 16:53:44 +00:00
hp.com!davidm
662957d585 Initial revision 2004-04-20 16:53:44 +00:00
hp.com!davidm
36e094230c (intern_string): Cast buf-pointer to int8_t* to shut up Intel 
compiler warning.

(Logical change 1.205)
 2004-04-20 16:53:44 +00:00
mostang.com!davidm
fe9d715071 (get_proc_name): Minor whitespace fixes. 
(Logical change 1.199)
 2004-03-31 07:38:06 +00:00
hp.com!davidm
14e36a6a51 Rename: src/backtrace.c -> src/mi/backtrace.c 
(Logical change 1.192)
 2004-03-30 01:56:19 +00:00
hp.com!davidm
3a95b3c641 Initial revision 2004-03-30 01:56:19 +00:00
hp.com!davidm
a758c420e1 Update. 
2004/01/28 13:40:40-08:00 hp.com!davidm
Rename: src/mi/Gset_caching_policy-ia64.c -> src/mi/Gset_caching_policy.c

(Logical change 1.162)
 2004-01-30 00:01:24 +00:00
hp.com!davidm
a58ab0d85c Update. 
2004/01/28 13:40:33-08:00 hp.com!davidm
Rename: src/mi/Gget_accessors-ia64.c -> src/mi/Gget_accessors.c

(Logical change 1.162)
 2004-01-30 00:01:24 +00:00
hp.com!davidm
c93b3e827e Update. 
2004/01/27 21:46:30-08:00 hp.com!davidm
Rename: src/Gget_proc_name.c -> src/mi/Gget_proc_name.c

(Logical change 1.162)
 2004-01-30 00:01:24 +00:00
hp.com!davidm
e11aa4383c Update. 
2004/01/27 21:45:56-08:00 hp.com!davidm
Rename: src/Gdyn-remote.c -> src/mi/Gdyn-remote.c

(Logical change 1.162)
 2004-01-30 00:01:24 +00:00
hp.com!davidm
16df64ba9e Update. 
2004/01/27 21:43:47-08:00 hp.com!davidm
Rename: src/mi/Gset_reg-mi.c -> src/mi/Gset_reg.c

(Logical change 1.162)
 2004-01-30 00:01:24 +00:00
hp.com!davidm
78999cc067 Update. 
2004/01/27 21:43:27-08:00 hp.com!davidm
Rename: src/mi/Gget_reg-mi.c -> src/mi/Gget_reg.c

(Logical change 1.162)
 2004-01-30 00:01:24 +00:00
hp.com!davidm
388f60fd02 Update. 
2004/01/27 21:43:03-08:00 hp.com!davidm
Rename: src/mi/Gdestroy_addr_space-mi.c -> src/mi/Gdestroy_addr_space.c

(Logical change 1.162)
 2004-01-30 00:01:24 +00:00