On 5/1/17 8:49 PM, Alexei Starovoitov wrote:
On 4/30/17 9:07 AM, David Miller wrote:This is mainly a synchronization point, I still need to look more deeply into Alexei's -g issue. New in this version from v3: - Remove tailcall from opcode table - Rearrange relocations so that numbers match with LLVM ones - Emit relocs properly so that dwarf2 debug info tests pass - Handle negative load/store offsets properly, add tests Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>dwarf on little endian works now :)
Yonghong fixed llvm bug with big-endian dwarf [1]
and binutils worked out of the box :)
$ ./bin/clang -O2 -target bpfeb -c -g test.c
$ /w/binutils-gdb/bld/binutils/objdump -S test.o
test.o: file format elf64-bpfbe
Disassembly of section .text:
0000000000000000 <bpf_prog1>:
int bpf_prog1(void *ign)
{
volatile unsigned long t = 0x8983984739ull;
0: 18 10 00 00 83 98 47 39 ldimm64 r1, 590618314553
8: 00 00 00 00 00 00 00 89
10: 7b a1 ff f8 00 00 00 00 stdw [r10+-8], r1
return *(unsigned long *)((0xffffffff8fff0002ull) + t);
18: 79 1a ff f8 00 00 00 00 lddw r1, [r10+-8]
[1]
https://reviews.llvm.org/rL302265
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