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Re: next

From: Jeremy Bennett <jeremy dot bennett at embecosm dot com>
To: "nagaraju.m" <nagaraju dot m at redpinesignals dot com>
Cc: gdb at sourceware dot org
Date: Tue, 07 Jul 2009 14:22:09 +0100
Subject: Re: next
References: <4A4DFA77.60707@redpinesignals.com> <1246963207.2548.4.camel@thomas> <4A53373E.1090403@redpinesignals.com>
Reply-to: jeremy dot bennett at embecosm dot com
On Tue, 2009-07-07 at 17:23 +0530, nagaraju.m wrote:
> Hi Bennett,
> 
>              Please look at the following program and its concerned GDB 
> output.

Hi Nagaraju M,

It would be *really* helpful to see this output with

        "set debug infrun 1"

before you use the "next" command. That way we can see where infrun
thinks it is.

How are you executing GDB? Are you using any command line flags?

It seems like "next" is working, except when you try to step past a
function call, when it behaves like "step".

I've inserted some comments below, which may help.


Jeremy

> *Program*:
> int abc(int p,int q)
> {
>     int r;
>     r = p + q;
>     return r;
> }
> 
> int main()
> {
>    int a=10,b=20,c;
>    c = abc(a,b);
>    return 0;
> }
> 
> --------------------------------------------------------------------------------------------------------------------------------------------------------
> *
> GDB output*
> 
> This GDB was configured as "--host=i686-pc-linux-gnu 
> --target=rpine-elf32"...
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> (gdb) *tar sim*
> Connected to the simulator.
> (gdb) *load*
> Loading section .text, size 0x330 lma 0x0
> Loading section .data, size 0x38c lma 0x330
> Start address 0x100
> Transfer rate: 13792 bits in <1 sec.
> (gdb) *b main*
> Breakpoint 1 at 0x160: file a3.c, line 10.
> (gdb) *run*
> Starting program: /work/a.out
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { frame_id_p (l={!stack,!code,!special}) -> 0 }
> { create_sentinel_frame (...) -> {level=-1,type=<unknown 
> type>,unwind=0x82a7350,pc=<unknown>,id={!stack,!code,!special},func=<unknown>} 
> }
> { get_prev_frame_1 (this_frame=-1) -> 
> {level=0,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { deprecated_update_frame_pc_hack (frame=0,pc=0x160) }
> 
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> Breakpoint 1, main () at a3.c:10
> warning: Source file is more recent than executable.
> 10       int a=10,b=20,c;
> 

This looks good behavior

BUT.....

The warning about the source file being more recent than the executable
is alarming. Are you *sure* you are debugging the executable you think
you are? Did you really mean to use "run" and not "continue" after
loading the executable?

As a check, recompile your executable, and check that you can debug it
without this warning. If not, you are picking up the wrong executable.

> (gdb) *next*
> { get_frame_id (fi=0) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[c0de0600] }
> { frame_func_unwind (fi=-1) -> 0x158 }
> -> {stack=0x6dec0,code=0x158,!special} }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { create_sentinel_frame (...) -> {level=-1,type=<unknown 
> type>,unwind=0x82a7350,pc=<unknown>,id={!stack,!code,!special},func=<unknown>} 
> }
> { get_prev_frame_1 (this_frame=-1) -> 
> {level=0,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=0) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[6c010000] }
> { frame_pc_unwind (this_frame=-1) -> 0x16c }
> { frame_func_unwind (fi=-1) -> 0x158 }
> -> {stack=0x6dec0,code=0x158,!special} }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x158,!special},r={stack=0x6dec0,code=0x158,!special}) 
> -> 1 }
> { deprecated_update_frame_pc_hack (frame=0,pc=0x16c) }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x158,!special},r={stack=0x6dec0,code=0x158,!special}) 
> -> 1 }
> *11       c = abc(a,b);*

This is also correct behavior

> 
> *(gdb) next*
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { create_sentinel_frame (...) -> {level=-1,type=<unknown 
> type>,unwind=0x82a7350,pc=<unknown>,id={!stack,!code,!special},func=<unknown>} 
> }
> { get_prev_frame_1 (this_frame=-1) -> 
> {level=0,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=0) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[34010000] }
> { frame_pc_unwind (this_frame=-1) -> 0x134 }
> { frame_func_unwind (fi=-1) -> 0x134 }
> -> {stack=0x6dec0,code=0x134,!special} }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x134,!special},r={stack=0x6dec0,code=0x158,!special}) 
> -> 0 }
> { get_prev_frame_1 (this_frame=0) { frame_id_p 
> (l={stack=0x6dec0,code=0x134,!special}) -> 1 }
> -> 
> {level=1,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=1) { frame_register_unwind 
> (frame=0,regnum=14(r14),...) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> -> *optimizedp=0 *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> { frame_register_unwind (frame=0,regnum=16(pc),...) { 
> frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[34010000] }
> -> *optimizedp=0 *lvalp=2 *addrp=0x0 *bufferp=[34010000] }
> { frame_pc_unwind (this_frame=0) -> 0x134 }
> { frame_func_unwind (fi=0) -> 0x122 }
> -> {stack=0x6dec0,code=0x122,!special} }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x122,!special},r={stack=0x6dec0,code=0x158,!special}) 
> -> 0 }
> { deprecated_update_frame_pc_hack (frame=0,pc=0x134) }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x158,!special},r={stack=0x6dec0,code=0x134,!special}) 
> -> 0 }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> abc (p=0, q=0) at a3.c:2
> 2    {
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { create_sentinel_frame (...) -> {level=-1,type=<unknown 
> type>,unwind=0x82a7350,pc=<unknown>,id={!stack,!code,!special},func=<unknown>} 
> }
> { get_prev_frame_1 (this_frame=-1) -> 
> {level=0,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=0) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[3c010000] }
> { frame_pc_unwind (this_frame=-1) -> 0x13c }
> { frame_func_unwind (fi=-1) -> 0x134 }
> -> {stack=0x6dea4,code=0x134,!special} }
> { frame_id_eq 
> (l={stack=0x6dea4,code=0x134,!special},r={stack=0x6dec0,code=0x134,!special}) 
> -> 0 }
> { get_prev_frame_1 (this_frame=0) { frame_id_p 
> (l={stack=0x6dea4,code=0x134,!special}) -> 1 }
> -> 
> {level=1,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=1) { frame_register_unwind 
> (frame=0,regnum=14(r14),...) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> -> *optimizedp=0 *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=0,regnum=16(pc),...) { 
> frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[3c010000] }
> -> *optimizedp=0 *lvalp=2 *addrp=0x0 *bufferp=[3c010000] }
> { frame_pc_unwind (this_frame=0) -> 0x13c }
> { frame_func_unwind (fi=0) -> 0x134 }
> -> {stack=0x6dea4,code=0x134,!special} }
> { frame_id_eq 
> (l={stack=0x6dea4,code=0x134,!special},r={stack=0x6dec0,code=0x134,!special}) 
> -> 0 }
> { deprecated_update_frame_pc_hack (frame=0,pc=0x13c) }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x134,!special},r={stack=0x6dea4,code=0x134,!special}) 
> -> 0 }

At this point, I think GDB believes it has completed the "next", and is
extracting information from the stack frame, so it can print out details
of where it is.

In this case at the start of function "abc" (which is not what was
expected).

> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> abc (p=10,

OK - it's got the correct value for argument p.

> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[a4de0600] }
>     q=20, 450240, 380, 10, 20, 0, 20, 10, 0, 302, 0, 0, 0, 0, 0, 0, 0, 
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
> 0, 0, 0, 0, 0, 0, 0, 0) at a3.c:4

It's got the correct value for argument "q", but what are all these
other arguments it thinks are on the stack. "abc" has only two arguments
- no varargs at the end.

This looks like a corrupt interpretation of the stack.

I'm surprised at the number of registers being unwound from the stack,
but without knowing your ABI and architecture, can't tell if there is
anything surprising there.

> 4        *r = p + q;*
> 
> (gdb) *next*
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { create_sentinel_frame (...) -> {level=-1,type=<unknown 
> type>,unwind=0x82a7350,pc=<unknown>,id={!stack,!code,!special},func=<unknown>} 
> }
> { get_prev_frame_1 (this_frame=-1) -> 
> {level=0,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=0) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[4a010000] }
> { frame_pc_unwind (this_frame=-1) -> 0x14a }
> { frame_func_unwind (fi=-1) -> 0x134 }
> -> {stack=0x6dea4,code=0x134,!special} }
> { frame_id_eq 
> (l={stack=0x6dea4,code=0x134,!special},r={stack=0x6dea4,code=0x134,!special}) 
> -> 1 }
> { deprecated_update_frame_pc_hack (frame=0,pc=0x14a) }
> { frame_id_eq 
> (l={stack=0x6dea4,code=0x134,!special},r={stack=0x6dea4,code=0x134,!special}) 
> -> 1 }
> 5        return r;
> 
> (gdb) *next*
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { create_sentinel_frame (...) -> {level=-1,type=<unknown 
> type>,unwind=0x82a7350,pc=<unknown>,id={!stack,!code,!special},func=<unknown>} 
> }
> { get_prev_frame_1 (this_frame=-1) -> 
> {level=0,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=0) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[a4de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[4e010000] }
> { frame_pc_unwind (this_frame=-1) -> 0x14e }
> { frame_func_unwind (fi=-1) -> 0x134 }
> -> {stack=0x6dea4,code=0x134,!special} }
> { frame_id_eq 
> (l={stack=0x6dea4,code=0x134,!special},r={stack=0x6dea4,code=0x134,!special}) 
> -> 1 }
> { deprecated_update_frame_pc_hack (frame=0,pc=0x14e) }
> { frame_id_eq 
> (l={stack=0x6dea4,code=0x134,!special},r={stack=0x6dea4,code=0x134,!special}) 
> -> 1 }
> 6    }
> 
> (gdb) *next*
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { create_sentinel_frame (...) -> {level=-1,type=<unknown 
> type>,unwind=0x82a7350,pc=<unknown>,id={!stack,!code,!special},func=<unknown>} 
> }
> { get_prev_frame_1 (this_frame=-1) -> 
> {level=0,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=0) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[7c010000] }
> { frame_pc_unwind (this_frame=-1) -> 0x17c }
> { frame_func_unwind (fi=-1) -> 0x158 }
> -> {stack=0x6dec0,code=0x158,!special} }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x158,!special},r={stack=0x6dea4,code=0x134,!special}) 
> -> 0 }
> { get_prev_frame_1 (this_frame=0) { frame_id_p 
> (l={stack=0x6dec0,code=0x158,!special}) -> 1 }
> -> 
> {level=1,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=1) { frame_register_unwind 
> (frame=0,regnum=14(r14),...) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> -> *optimizedp=0 *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> { frame_register_unwind (frame=0,regnum=16(pc),...) { 
> frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[7c010000] }
> -> *optimizedp=0 *lvalp=2 *addrp=0x0 *bufferp=[7c010000] }
> { frame_pc_unwind (this_frame=0) -> 0x17c }
> { frame_func_unwind (fi=0) -> 0x158 }
> -> {stack=0x6dec0,code=0x158,!special} }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x158,!special},r={stack=0x6dea4,code=0x134,!special}) 
> -> 0 }
> { frame_id_inner 
> (l={stack=0x6dec0,code=0x158,!special},r={stack=0x6dec0,code=0x158,!special}) 
> -> 0 }
> { reinit_frame_cache () }
> { reinit_frame_cache () }
> { create_sentinel_frame (...) -> {level=-1,type=<unknown 
> type>,unwind=0x82a7350,pc=<unknown>,id={!stack,!code,!special},func=<unknown>} 
> }
> { get_prev_frame_1 (this_frame=-1) -> 
> {level=0,type=<unknown>,unwind=<unknown>,pc=<unknown>,id=<unknown>,func=<unknown>} 
> }
> { get_frame_id (fi=0) { frame_register_unwind 
> (frame=-1,regnum=14(r14),...) -> *optimizedp=0 *lvalp=2 *addrp=0x0 
> *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=16(pc),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[80010000] }
> { frame_pc_unwind (this_frame=-1) -> 0x180 }
> { frame_func_unwind (fi=-1) -> 0x158 }
> -> {stack=0x6dec0,code=0x158,!special} }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x158,!special},r={stack=0x6dec0,code=0x158,!special}) 
> -> 1 }
> { deprecated_update_frame_pc_hack (frame=0,pc=0x180) }
> { frame_id_eq 
> (l={stack=0x6dec0,code=0x158,!special},r={stack=0x6dec0,code=0x158,!special}) 
> -> 1 }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> main () at a3.c:12
> 12       return 0;
> 
> (gdb) *p c*
> { frame_register_unwind (frame=-1,regnum=14(r14),...) -> *optimizedp=0 
> *lvalp=2 *addrp=0x0 *bufferp=[c0de0600] }
> *$2 = 30*

At least you got the right answer!

> 
-- 
Tel:      +44 (1590) 610184
Cell:     +44 (7970) 676050
SkypeID: jeremybennett
Email:   jeremy.bennett@embecosm.com
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References:
- Re:next
  - From: nagaraju.m
- Re: Re:next
  - From: Jeremy Bennett
- Re: next
  - From: nagaraju.m
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