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| author | Jose E. Marchesi <jose.marchesi@oracle.com> | 2019-07-14 14:45:31 +0200 |
|---|---|---|
| committer | Jose E. Marchesi <jose.marchesi@oracle.com> | 2019-07-14 14:45:31 +0200 |
| commit | 92434a14b97bf07546701613a16aaf4d8a3b3eca (patch) | |
| tree | e60ab4f22c2660c51d887ff4c23aaf965c34df0f /cpu | |
| parent | da73816739483bac537403262cef1c460e43319f (diff) | |
| download | gdb-92434a14b97bf07546701613a16aaf4d8a3b3eca.zip gdb-92434a14b97bf07546701613a16aaf4d8a3b3eca.tar.gz gdb-92434a14b97bf07546701613a16aaf4d8a3b3eca.tar.bz2 | |
cpu,opcodes,gas: fix arguments to ldabs and ldind eBPF instructions
The eBPF non-generic load instructions ldind{b,h,w,dw} and
ldabs{b,h,w,dw} do not take an explicit destination register as an
argument. Instead, they put the loaded value in %r0, implicitly.
This patch fixes the CPU BPF description to not expect a 'dst'
argument in these arguments, regenerates the corresponding files in
opcodes, and updates the impacted GAS tests.
Tested in a x86-64 host.
cpu/ChangeLog:
2019-07-14 Jose E. Marchesi <jose.marchesi@oracle.com>
* bpf.cpu (dlsi): ldabs and ldind instructions do not take an
explicit 'dst' argument.
opcodes/ChangeLog:
2019-07-14 Jose E. Marchesi <jose.marchesi@oracle.com>
* bpf-desc.c: Regenerate.
* bpf-opc.c: Likewise.
gas/ChangeLog:
2019-07-14 Jose E. Marchesi <jose.marchesi@oracle.com>
* testsuite/gas/bpf/mem.s: Do not use explicit arguments for
ldabs and ldind instructions.
* testsuite/gas/bpf/mem.d: Updated accordingly.
* testsuite/gas/bpf/mem-be.d: Likewise.
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/ChangeLog | 5 | ||||
| -rw-r--r-- | cpu/bpf.cpu | 4 |
2 files changed, 7 insertions, 2 deletions
diff --git a/cpu/ChangeLog b/cpu/ChangeLog index 1ac7b2b..4994003 100644 --- a/cpu/ChangeLog +++ b/cpu/ChangeLog @@ -1,3 +1,8 @@ +2019-07-14 Jose E. Marchesi <jose.marchesi@oracle.com> + + * bpf.cpu (dlsi): ldabs and ldind instructions do not take an + explicit 'dst' argument. + 2019-06-13 Stafford Horne <shorne@gmail.com> * or1korfpx.cpu (float-setflag-insn-base): Add 'sf' to symbol. diff --git a/cpu/bpf.cpu b/cpu/bpf.cpu index 85bac21..60e89fb 100644 --- a/cpu/bpf.cpu +++ b/cpu/bpf.cpu @@ -477,8 +477,8 @@ (dni (.sym x-basename x-suffix x-endian) (.str x-basename x-suffix) ((ISA (.sym ebpf x-endian))) - (.str x-basename x-suffix " $dst" x-endian ",$src" x-endian ",$imm32") - (+ imm32 (f-offset16 0) (.sym src x-endian) (.sym dst x-endian) + (.str x-basename x-suffix " $src" x-endian ",$imm32") + (+ imm32 (f-offset16 0) ((.sym f-dst x-endian) 0) (.sym src x-endian) (.sym OP_CLASS_ x-class) (.sym OP_SIZE_ x-size) (.sym OP_MODE_ x-mode)) () ())) |