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* [Bug target/44266] New: stack frame lacks parameter save area
@ 2010-05-25 4:19 amodra at gmail dot com
2010-05-25 4:19 ` [Bug target/44266] " amodra at gmail dot com
` (6 more replies)
0 siblings, 7 replies; 9+ messages in thread
From: amodra at gmail dot com @ 2010-05-25 4:19 UTC (permalink / raw)
To: gcc-bugs
A function that makes no other calls besides calls to __tls_get_addr does not
allocate a stack frame with a parameter save area. According to the PowerPC64
ABI, any function that makes calls must allocate at least a 112 byte stack
frame. This testcase, extracted from libstdc++
/* -m64 -fPIC -O2 */
int *
get_global (void)
{
static __thread int global;
return &global;
}
results in
mflr 0
std 0,16(1)
stdu 1,-48(1)
addi 3,2,.LANCHOR0@got@tlsld
bl __tls_get_addr
nop
addi 1,1,48
addis 3,3,.LANCHOR0@dtprel@ha
addi 3,3,.LANCHOR0@dtprel@l
ld 0,16(1)
mtlr 0
blr
Note the 48 byte stack frame.
--
Summary: stack frame lacks parameter save area
Product: gcc
Version: 4.4.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: amodra at gmail dot com
ReportedBy: amodra at gmail dot com
GCC target triplet: powerpc64-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44266
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/44266] stack frame lacks parameter save area 2010-05-25 4:19 [Bug target/44266] New: stack frame lacks parameter save area amodra at gmail dot com @ 2010-05-25 4:19 ` amodra at gmail dot com 2010-05-25 13:42 ` amodra at gmail dot com ` (5 subsequent siblings) 6 siblings, 0 replies; 9+ messages in thread From: amodra at gmail dot com @ 2010-05-25 4:19 UTC (permalink / raw) To: gcc-bugs -- amodra at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2010-05-25 04:19:20 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44266 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/44266] stack frame lacks parameter save area 2010-05-25 4:19 [Bug target/44266] New: stack frame lacks parameter save area amodra at gmail dot com 2010-05-25 4:19 ` [Bug target/44266] " amodra at gmail dot com @ 2010-05-25 13:42 ` amodra at gmail dot com 2010-05-25 13:45 ` amodra at gmail dot com ` (4 subsequent siblings) 6 siblings, 0 replies; 9+ messages in thread From: amodra at gmail dot com @ 2010-05-25 13:42 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from amodra at gmail dot com 2010-05-25 13:42 ------- Created an attachment (id=20742) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20742&action=view) fairly obvious fix -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44266 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/44266] stack frame lacks parameter save area 2010-05-25 4:19 [Bug target/44266] New: stack frame lacks parameter save area amodra at gmail dot com 2010-05-25 4:19 ` [Bug target/44266] " amodra at gmail dot com 2010-05-25 13:42 ` amodra at gmail dot com @ 2010-05-25 13:45 ` amodra at gmail dot com 2010-05-26 2:49 ` amodra at gmail dot com ` (3 subsequent siblings) 6 siblings, 0 replies; 9+ messages in thread From: amodra at gmail dot com @ 2010-05-25 13:45 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from amodra at gmail dot com 2010-05-25 13:45 ------- Created an attachment (id=20743) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20743&action=view) alternate fix using emit_library_call machinery this one hasn't finished bootstrapping yet -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44266 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/44266] stack frame lacks parameter save area 2010-05-25 4:19 [Bug target/44266] New: stack frame lacks parameter save area amodra at gmail dot com ` (2 preceding siblings ...) 2010-05-25 13:45 ` amodra at gmail dot com @ 2010-05-26 2:49 ` amodra at gmail dot com 2010-05-28 8:57 ` amodra at gcc dot gnu dot org ` (2 subsequent siblings) 6 siblings, 0 replies; 9+ messages in thread From: amodra at gmail dot com @ 2010-05-26 2:49 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from amodra at gmail dot com 2010-05-26 02:49 ------- and it contained a typo too. superceded by the patch in the patch url -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44266 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/44266] stack frame lacks parameter save area 2010-05-25 4:19 [Bug target/44266] New: stack frame lacks parameter save area amodra at gmail dot com ` (3 preceding siblings ...) 2010-05-26 2:49 ` amodra at gmail dot com @ 2010-05-28 8:57 ` amodra at gcc dot gnu dot org 2010-05-29 14:17 ` bergner at gcc dot gnu dot org 2010-06-04 3:03 ` amodra at gmail dot com 6 siblings, 0 replies; 9+ messages in thread From: amodra at gcc dot gnu dot org @ 2010-05-28 8:57 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from amodra at gcc dot gnu dot org 2010-05-28 08:57 ------- Subject: Bug 44266 Author: amodra Date: Fri May 28 08:57:16 2010 New Revision: 159963 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159963 Log: PR target/44266 * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Use emit_library_call machinery to set up __tls_get_addr calls. Modified: trunk/gcc/ChangeLog trunk/gcc/config/rs6000/rs6000.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44266 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/44266] stack frame lacks parameter save area 2010-05-25 4:19 [Bug target/44266] New: stack frame lacks parameter save area amodra at gmail dot com ` (4 preceding siblings ...) 2010-05-28 8:57 ` amodra at gcc dot gnu dot org @ 2010-05-29 14:17 ` bergner at gcc dot gnu dot org 2010-06-04 3:03 ` amodra at gmail dot com 6 siblings, 0 replies; 9+ messages in thread From: bergner at gcc dot gnu dot org @ 2010-05-29 14:17 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from bergner at gcc dot gnu dot org 2010-05-29 14:17 ------- Subject: Bug 44266 Author: bergner Date: Sat May 29 14:17:26 2010 New Revision: 160028 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=160028 Log: Backport from mainline: 2010-05-28 Alan Modra <amodra@gmail.com> PR target/44266 * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Use emit_library_call machinery to set up __tls_get_addr calls. Modified: branches/ibm/gcc-4_4-branch/gcc/ChangeLog.ibm branches/ibm/gcc-4_4-branch/gcc/config/rs6000/rs6000.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44266 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug target/44266] stack frame lacks parameter save area 2010-05-25 4:19 [Bug target/44266] New: stack frame lacks parameter save area amodra at gmail dot com ` (5 preceding siblings ...) 2010-05-29 14:17 ` bergner at gcc dot gnu dot org @ 2010-06-04 3:03 ` amodra at gmail dot com 6 siblings, 0 replies; 9+ messages in thread From: amodra at gmail dot com @ 2010-06-04 3:03 UTC (permalink / raw) To: gcc-bugs ------- Comment #6 from amodra at gmail dot com 2010-06-04 03:03 ------- Fixed mainline. -- amodra at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44266 ^ permalink raw reply [flat|nested] 9+ messages in thread
[parent not found: <bug-44266-4@http.gcc.gnu.org/bugzilla/>]
* [Bug target/44266] stack frame lacks parameter save area [not found] <bug-44266-4@http.gcc.gnu.org/bugzilla/> @ 2010-11-17 6:10 ` amodra at gcc dot gnu.org 0 siblings, 0 replies; 9+ messages in thread From: amodra at gcc dot gnu.org @ 2010-11-17 6:10 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44266 --- Comment #7 from Alan Modra <amodra at gcc dot gnu.org> 2010-11-17 06:01:08 UTC --- Author: amodra Date: Wed Nov 17 06:01:03 2010 New Revision: 166856 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166856 Log: PR target/44266 Backport r159963 * config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Use emit_library_call machinery to set up __tls_get_addr calls. Modified: branches/gcc-4_5-branch/gcc/ChangeLog branches/gcc-4_5-branch/gcc/config/rs6000/rs6000.c ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2010-11-17 6:01 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
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2010-05-25 4:19 [Bug target/44266] New: stack frame lacks parameter save area amodra at gmail dot com
2010-05-25 4:19 ` [Bug target/44266] " amodra at gmail dot com
2010-05-25 13:42 ` amodra at gmail dot com
2010-05-25 13:45 ` amodra at gmail dot com
2010-05-26 2:49 ` amodra at gmail dot com
2010-05-28 8:57 ` amodra at gcc dot gnu dot org
2010-05-29 14:17 ` bergner at gcc dot gnu dot org
2010-06-04 3:03 ` amodra at gmail dot com
[not found] <bug-44266-4@http.gcc.gnu.org/bugzilla/>
2010-11-17 6:10 ` amodra at gcc dot gnu.org
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