Hi
Does anyone have time to take a look at this test case..
# Example
g++ -m64 -o test test.s
~$ ./test
terminate called after throwing an instance of 'int'
Abort
There's some problem with the unwind tables, but I can't spot it..
Something is different between sol and linux that's causing this..
Thanks
./C
Original code
------------------------------
cat test.cpp
int main() {
try {
throw (int)10;
}
catch(int i) {
return i;
}
return 0;
}
.file 1 "/root/test.cpp"
.text
.align 2
.section .except_table_supp, "a",@progbits
.section .except_table, "a",@progbits
.section .text
.p2align 1,,
# Program Unit: main
.globl main
.protected main
.type main, @function
main: # 0x0
# .frame %rbp, 16, %rbp
# reserved_spill_temp_0 = -8
# gra_spill_temp_1 = -16
.loc 1 2 0
# 1
# 2 int main() {
.LBB1_main:
#<freq>
#<freq> BB:1 frequency = 1.00000 (heuristic)
#<freq>
.LEH_pushbp_main:
pushq %rbp # [0]
.LEH_movespbp_main:
movq %rsp,%rbp # [0]
.LEH_adjustsp_main:
addq $-16,%rsp # [0]
addq $-8,%rsp
fnstcw (%rsp)
andw $0xfcff,(%rsp)
orw $768,(%rsp)
fldcw (%rsp)
addq $8,%rsp
.loc 1 4 0
# 3 try {
# 4 throw (int)10;
movq $4,%rdi # [0]
.globl __cxa_allocate_exception
call __cxa_allocate_exception # [0] __cxa_allocate_exception
.LBB3_main:
#<freq>
#<freq> BB:3 frequency = 1.00000 (heuristic)
#<freq>
movq %rax,%rdi # [0]
movl $10,%eax # [0]
movl %eax,0(%rdi) # [1] id:17
.L_0_3074:
#<freq>
#<freq> BB:4 frequency = 1.00000 (heuristic)
#<freq>
.globl _ZTIi
movq $(_ZTIi),%rsi # [0] _ZTIi
xorq %rdx,%rdx # [0]
.globl __cxa_throw
call __cxa_throw # [0] __cxa_throw
.L_0_3330:
#<freq>
#<freq> BB:5 frequency = 1.00000 (heuristic)
#<freq>
xorq %rax,%rax # [0]
.loc 1 9 0
# 5 }
# 6 catch(int i) {
# 7 return i;
# 8 }
# 9 return 0;
leave # [0]
ret # [0]
.L_0_3586:
#<freq>
#<freq> BB:8 frequency = 0.05969 (heuristic)
#<freq>
xorl %eax,%eax # [0]
.loc 1 4 0
.globl _Unwind_Resume
call _Unwind_Resume # [0] _Unwind_Resume
.L_0_3842:
#<freq>
#<freq> BB:9 frequency = 0.00000 (heuristic)
#<freq>
.loc 1 7 0
# .aproc Handler.0.770
.type Handler.0.770, @function
Handler.0.770: # 0x40
.Lt_0_770:
#<freq>
#<freq> BB:13 frequency = 0.10000 (heuristic)
#<freq> BB:13 => BB:10 probability = 0.40310
#<freq> BB:13 => BB:8 probability = 0.59690
#<freq>
.loc 1 4 0
cmpq $1,%rdx # [0]
.loc 1 7 0
movq %rax,%rdi # [1]
.loc 1 4 0
jne .L_0_3586 # [1]
.Lt_0_258:
#<freq>
#<freq> BB:10 frequency = 0.04031 (heuristic)
#<freq>
.loc 1 6 0
.weak __cxa_begin_catch
call __cxa_begin_catch # [0] __cxa_begin_catch
.LBB11_main:
#<freq>
#<freq> BB:11 frequency = 0.04031 (heuristic)
#<freq>
movl 0(%rax),%eax # [0] id:18
movq %rax,-16(%rbp) # [3] gra_spill_temp_1
.loc 1 7 0
.weak __cxa_end_catch
call __cxa_end_catch # [3] __cxa_end_catch
.LBB12_main:
#<freq>
#<freq> BB:12 frequency = 0.04031 (heuristic)
#<freq>
movq -16(%rbp),%rax # [0] gra_spill_temp_1
leave # [0]
ret # [0]
.LDWend_main:
.size main, .LDWend_main-main
.section .except_table
.align 0
.type .range_table.main, @object
.range_table.main: # 0x0
# offset 0
.byte 255
# offset 1
.byte 0
.uleb128 .LSDATTYPEB1-.LSDATTYPED1
.LSDATTYPED1:
# offset 6
.byte 1
.uleb128 .LSDACSE1-.LSDACSB1
.LSDACSB1:
.uleb128 .L_0_3074-main
.uleb128 .L_0_3330-.L_0_3074
.uleb128 .Lt_0_770-main
# offset 19
.uleb128 1
.uleb128 .L_0_3586-main
.uleb128 .L_0_3842-.L_0_3586
# offset 29
.uleb128 0
# offset 33
.uleb128 0
.LSDACSE1:
# offset 37
.sleb128 1
# offset 41
.sleb128 0
# offset 45
.sleb128 0
# offset 49
.sleb128 0
.quad _ZTIi +0
.LSDATTYPEB1:
# end of initialization for .range_table.main
.section .text
.align 4
.section .except_table_supp
.align 4
.section .except_table
.align 8
.section .eh_frame, "a",@progbits
.LEHCIE:
.4byte .LEHCIE_end - .LEHCIE_begin
.LEHCIE_begin:
.4byte 0x0
.byte 0x01, 0x7a, 0x50, 0x4c, 0x00, 0x01, 0x78, 0x10
.byte 0x0a, 0x00
.quad __gxx_personality_v0
.byte 0x00, 0x0c, 0x07, 0x08, 0x90, 0x01
.align 8
.LEHCIE_end:
.4byte .LFDE1_end - .LFDE1_begin
.LFDE1_begin:
.4byte .LFDE1_begin - .LEHCIE
.quad .LBB1_main
.quad .LDWend_main - .LBB1_main
.byte 0x08
.quad .range_table.main
.byte 0x04
.4byte .LEH_movespbp_main - .LBB1_main
.byte 0x0e, 0x10, 0x86, 0x02, 0x04
.4byte .LEH_adjustsp_main - .LEH_movespbp_main
.byte 0x0d, 0x06
.align 8
.LFDE1_end:
.section .debug_line, ""
.section .note.GNU-stack,"",@progbits
.ident "GCC: (GNU) 3.4.3 (csl-sol210-3_4-20050802)"
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