NetSurf on ARMv7 platforms
Afternoon,
So, NetSurf runs mostly ok on ARMv7 platforms with their backwards
incompatible unaligned LDR behaviour turned on. Tinct, however, appears
to perform some LDRs from unaligned addresses, resulting in crashes.
Here's a backtrace:
Fatal signal received: Segmentation fault
Stack backtrace:
Running thread 0x59e53c
( 5a7ee0) pc: 462860 lr: 74f4c sp: 5a7ee4 __write_backtrace()
( 5a7f10) pc: 74d64 lr: 463298 sp: 5a7f14 ^ro_gui_signal()
( 5a7f38) pc: 463288 lr: 462f58 sp: 5a7f3c __unixlib_exec_sig()
( 5a7fa0) pc: 462a18 lr: 463870 sp: 5a7fa4 __unixlib_raise_signal()
( 5a7fb0) pc: 463774 lr: 5a6c48 sp: 5a6c04 __h_cback()
Register dump at 005a7fb4:
a1: 12f a2: 2d a3: 1f4 a4: 0
v1: 0 v2: 0 v3: 202513b4 v4: 1
v5: 3d5 v6: 0 sl: 41b78d39 fp: 67197124
ip: 20248394 sp: 5a6c04 lr: 5a6c48 pc: 2024609c
cpsr: 80000113
20246088 : .p.â : e21a7003 : ANDS R7,R10,#3
2024608c : .... : 0a000008 : BEQ &202460B4
20246090 : .àgâ : e267e003 : RSB R14,R7,#3
20246094 : ..^á : e15e0000 : CMP R14,R0
20246098 : .à Á : c1a0e000 : MOVGT R14,R0
2024609c : .??å : e59a9000 : LDR R9,[R10,#0]
202460a0 : ..@Ð : d040000e : SUBLE R0,R0,R14
202460a4 : ..?Ò : d2800003 : ADDLE R0,R0,#3
202460a8 : ..?À : c0800007 : ADDGT R0,R0,R7
Invalid pc address bebeec
For reference, Tinct is loaded at 202416B4.
J.