On 5/1/17 8:03 PM, David Miller wrote:
From: Alexei Starovoitov
Date: Mon, 1 May 2017 19:49:21 -0700
On 4/30/17 11:21 AM, David Miller wrote:
built with:
clang -O2 -target bpfel -g -c x.c -o x.o
readelf can see it just fine:
[davem@localhost binutils]$ ./readelf --debug-dump=loc ./
From: Alexei Starovoitov
Date: Mon, 1 May 2017 19:49:21 -0700
> On 4/30/17 11:21 AM, David Miller wrote:
>> built with:
>>
>> clang -O2 -target bpfel -g -c x.c -o x.o
>>
>> readelf can see it just fine:
>>
>> [davem@localhost binutils]$ ./readelf --debug-dump=loc ./xel.o
>> Contents of the .
On 4/30/17 11:21 AM, David Miller wrote:
built with:
clang -O2 -target bpfel -g -c x.c -o x.o
readelf can see it just fine:
[davem@localhost binutils]$ ./readelf --debug-dump=loc ./xel.o
Contents of the .debug_loc section:
Offset BeginEnd Expression
From: Alexei Starovoitov
Date: Sat, 29 Apr 2017 23:44:59 -0700
> '-g' still doesn't seem to work:
> /w/binutils-gdb/bld/binutils/objdump: invalid relocation type 10
> /w/binutils-gdb/bld/binutils/objdump: BFD (GNU Binutils)
> 2.28.51.20170429 assertion fail ../../bfd/elf64-bpf.c:139
>0: 18 01
From: Alexei Starovoitov
Date: Sat, 29 Apr 2017 23:44:59 -0700
> On 4/29/17 7:37 PM, David Miller wrote:
>> BTW, should I just remove tailcall from the opcode table altogether?
>
> yeah. tailcall is not a special opcode from user space point of view.
> Only after normal call with func_id=bpf_tai
From: Alexei Starovoitov
Date: Sat, 29 Apr 2017 23:44:59 -0700
> On 4/29/17 7:37 PM, David Miller wrote:
>> From: David Miller
>> Date: Sat, 29 Apr 2017 22:24:50 -0400 (EDT)
>>
>>> Some of your bugs should be fixed by this patch below, I'll add
>>> test cases soon:
>>
>> Ok, here are all the loc
On 4/29/17 7:37 PM, David Miller wrote:
From: David Miller
Date: Sat, 29 Apr 2017 22:24:50 -0400 (EDT)
Some of your bugs should be fixed by this patch below, I'll add
test cases soon:
Ok, here are all the local changes in my tree. I made the relocs
match LLVM and I fixed some dwarf debuggin
From: David Miller
Date: Sat, 29 Apr 2017 22:24:50 -0400 (EDT)
> Some of your bugs should be fixed by this patch below, I'll add
> test cases soon:
Ok, here are all the local changes in my tree. I made the relocs
match LLVM and I fixed some dwarf debugging stuff.
With this we are also down to
On 4/29/17 7:13 PM, David Miller wrote:
From: Alexei Starovoitov
Date: Sat, 29 Apr 2017 17:48:43 -0700
/w/binutils-gdb/bld/binutils/objdump: invalid relocation type 10
/w/binutils-gdb/bld/binutils/objdump: Dwarf Error: found address size
I discussed this in another email, the relocation numb
From: Alexei Starovoitov
Date: Sat, 29 Apr 2017 17:48:43 -0700
> $ bld/binutils/objdump -S test.o
>
> test.o: file format elf64-bpfbe
>
> Disassembly of section .text:
>
> :
>0: 18 10 00 00 83 98 47 39 ldimm64 r1, 590618314553
>8: 00 00 00 00 00 00 00 89
>
From: Alexei Starovoitov
Date: Sat, 29 Apr 2017 17:48:43 -0700
> /w/binutils-gdb/bld/binutils/objdump: invalid relocation type 10
> /w/binutils-gdb/bld/binutils/objdump: Dwarf Error: found address size
I discussed this in another email, the relocation numbers I used in
binutils do not match what
From: Alexei Starovoitov
Date: Sat, 29 Apr 2017 17:48:43 -0700
> On 4/28/17 1:33 PM, David Miller wrote:
>> New in this version:
>>
>> 1) All the relocation work I posted earlier today.
>> 2) Teach readelf about a few bpf relocs as needed
>> 3) Add a 'nop' instruction which facilitates the gas
>>
On 4/28/17 1:33 PM, David Miller wrote:
New in this version:
1) All the relocation work I posted earlier today.
2) Teach readelf about a few bpf relocs as needed
3) Add a 'nop' instruction which facilitates the gas
testsuite. I used "mov r0,r0"
The whole gas testsuite passes now. :-) But t
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