OK, if I'm disassembling this correctly the output from compiling with
-S -dP (thanks Richard) is:
@ 0 "" 2
.thumb
ldr r3, .L515+16 @ 152 pic_load_addr_32bit [length = 4]
.LPIC36:
add r3, pc @ 155 tls_load_dot_plus_four/1 [length = 4]
ldr r3, [r3]
cmp r3, #0 @ 157 *thumb2_cbz/1 [length = 8]
beq .L514
.L496:
movs r0, #4 @ 420 *thumb2_movsi_shortim [length = 2]
.LPIC39:
add r3, pc @ 176 tls_load_dot_plus_four/1 [length = 4]
ldr r3, [r3]
.LEHB27:
bl operator new(unsigned int)(PLT) @ 178 *call_value_symbol
[length = 4]
.LEHE27:
mov r5, r0 @ 179 *thumb2_movsi_vfp/1 [length = 4]
so it looks like the rtl chunk @176 is the dodgy one?
from the 212r.mach rtl file we have:
(insn:TI 152 147 155 2
../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:80 (set (reg:SI 3
r3 [orig:178 D.147509 ] [178])
(unspec:SI [
(mem:SI (const (plus (label_ref 451)
(const_int 16 [0x10]))) [0 S4 A32])
] 3)) 167 {pic_load_addr_32bit} (expr_list:REG_EQUAL (unspec:SI [
(const:SI (unspec:SI [
(symbol_ref/i:SI
("_ZZN11QMetaTypeIdIN2Qt12GestureStateEE14qt_metatype_idEvE11metatype_id")
[flags 0x82] <var_decl 0x410a91e0 metatype_id>)
(const:SI (plus:SI (unspec:SI [
(const_int 36 [0x24])
] 21)
(const_int 4 [0x4])))
] 27))
] 3)
(nil)))
(insn:TI 155 152 157 2
../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:80 (parallel [
(set (reg:SI 3 r3 [orig:178 D.147509 ] [178])
(mem/s/v:SI (unspec:SI [
(reg:SI 3 r3 [orig:178 D.147509 ] [178])
(const_int 4 [0x4])
(const_int 36 [0x24])
] 4) [3 metatype_id._q_value+0 S4 A32]))
(clobber (scratch:SI))
]) 666 {tls_load_dot_plus_four} (nil))
(jump_insn:TI 157 155 171 2
../../include/QtGui/private/../../../src/gui/kernel/qgesture.h:56 (parallel [
(set (pc)
(if_then_else (eq (reg:SI 3 r3 [orig:178 D.147509 ] [178])
(const_int 0 [0x0]))
(label_ref:SI 423)
(pc)))
(clobber (reg:CC 24 cc))
]) 721 {*thumb2_cbz} (expr_list:REG_UNUSED (reg:CC 24 cc)
(expr_list:REG_BR_PROB (const_int 3898 [0xf3a])
(nil)))
-> 423)
(code_label 171 157 172 3 496 "" [1 uses])
(note 172 171 174 3 [bb 3] NOTE_INSN_BASIC_BLOCK)
(note 174 172 420 3 NOTE_INSN_DELETED)
(insn:TI 420 174 176 3 kernel/qgesturemanager.cpp:85 (parallel [
(set (reg:SI 0 r0)
(const_int 4 [0x4]))
(clobber (reg:CC 24 cc))
]) 711 {*thumb2_movsi_shortim} (expr_list:REG_UNUSED (reg:CC 24 cc)
(nil)))
(insn 176 420 178 3
../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:85 (parallel [
(set (reg:SI 3 r3 [orig:180 D.147506 ] [180])
(mem/s/v:SI (unspec:SI [
(reg:SI 3 r3 [orig:180 D.147506 ] [180])
(const_int 4 [0x4])
(const_int 39 [0x27])
] 4) [3 metatype_id._q_value+0 S4 A32]))
(clobber (scratch:SI))
]) 666 {tls_load_dot_plus_four} (expr_list:REG_UNUSED (reg:SI 3 r3
[orig:180 D.147506 ] [180])
(nil)))
(call_insn:TI 178 176 346 3 kernel/qgesturemanager.cpp:85 (parallel [
(set (reg:SI 0 r0)
(call (mem:SI (symbol_ref:SI ("_Znwj") [flags 0x41]
<function_decl 0xa0300a80 operator new>) [0 S4 A32])
(const_int 0 [0x0])))
(use (const_int 0 [0x0]))
(clobber (reg:SI 14 lr))
]) 256 {*call_value_symbol} (expr_list:REG_EH_REGION (const_int 10
[0xa])
(nil))
(expr_list:REG_DEP_TRUE (use (reg:SI 0 r0))
(nil)))
(note 346 178 179 4 [bb 4] NOTE_INSN_BASIC_BLOCK)
(insn:TI 179 346 183 4 kernel/qgesturemanager.cpp:85 (set (reg/f:SI 5 r5
[orig:134 D.119024 ] [134])
(reg:SI 0 r0)) 591 {*thumb2_movsi_vfp} (nil))
--
You received this bug notification because you are a member of Kubuntu
Bugs, which is subscribed to qt4-x11 in ubuntu.
https://bugs.launchpad.net/bugs/705689
Title:
QT applications crash with segfault error on armel when QT is built
with gcc 4.5 on natty
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