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2014-06-24tcg: mark tcg_out* and tcg_patch* with attribute 'unused'Peter Maydell
The tcg_out* and tcg_patch* functions are utility routines that may or may not be used by a particular backend; mark them with the 'unused' attribute to suppress spurious warnings if they aren't used. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-24Fix new typos (found by codespell)Stefan Weil
* accomodate -> accommodate * aquiring -> acquiring * beacuse -> because * loosing -> losing * prefering -> preferring * threshhold -> threshold Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-23tcg-ppc: Use the return address as a base pointerRichard Henderson
This can significantly reduce code size for generation of (some) 64-bit constants. With the side effect that we know for a fact that exit_tb can use the register to good effect. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc: Merge cache-utils into the backendRichard Henderson
As a "utility", it only supported ppc, and in a way that other tcg backends provided directly in tcg-target.h. Removing this disparity is easier now that the two ppc backends are merged. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc: Rename the tcg/ppc64 backendRichard Henderson
The other tcg backends that support 32- and 64-bit modes use the 32-bit name for the port. Follow suit. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc: Remove the backendRichard Henderson
Vectoring the 32-bit build to the ppc64 directory. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge ppc32 shiftsRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Support mulsh_i32Richard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge ppc32 register usageRichard Henderson
Good enough to run some instructions before things go awry. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge ppc32 qemu_ld/stRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge ppc32 brcond2, setcond2, muluhRichard Henderson
Now passes tcg_add_target_add_op_defs assertions, but not complete enough to function. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Begin merging ppc32 with ppc64Richard Henderson
Just enough to compile, assuming you edit config-host.mak manually. It will still abort at runtime, due to missing brcond2, setcond2, mulu2. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Fix sub2 implementationRichard Henderson
All sorts of confusion on argument ordering. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Merge 32-bit ABIs into the prologue / frame codeRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Adjust tcg_out_call for ELFv2Ulrich Weigand
The new ELFv2 ABI, used by default on powerpc64le-linux hosts, introduced some changes that are incompatible with code currently generated by the ppc64 TGC target. In particular, we no longer use function descriptors. This patch adds support for the ELFv2 ABI in the ppc64 TGC function call and function prologue sequences. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Ulrich Weigand <ulrich.weigand@de.ibm.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Support the ppc64 elfv2 ABIRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Use the correct test in tcg_out_callRichard Henderson
The correct test uses the _CALL_AIX macro, not a host-specific macro. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Better parameterize the stack frameRichard Henderson
In preparation for supporting other ABIs. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Fix TCG_TARGET_CALL_STACK_OFFSETRichard Henderson
The calling convention reserves space for the 8 register parameters on the stack, so using only 6*8=48 as the offset was wrong. We never saw this bug because we don't have any helpers with more than 5 parameters. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Move call macros out of tcg-target.hRichard Henderson
These values are private to tcg.c; we don't need to expose this nonsense to the translators. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Make TCG_AREG0 and TCG_REG_CALL_STACK enum constantsRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Use tcg_out_{ld,st,cmp} internallyRichard Henderson
Rather than using tcg_out32 and opcodes directly. This allows us to remove LD_ADDR and CMP_L macros. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Relax register restrictions in tcg_out_mem_longRichard Henderson
In order to be able to use tcg_out_ld/st sensibly with scratch registers, assert only when we'd incorrectly clobber a scratch. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Move functions aroundRichard Henderson
Code movement only. This will allow us to make use of the other tcg_out_* functions in tidying their implementations. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc64: Avoid some hard-codings of TCG_TYPE_I64Richard Henderson
Using more appropriate _PTR or _REG where possible. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23tcg-ppc: Use uintptr_t in ppc_tb_set_jmp_targetRichard Henderson
Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-18tcg/optimize: Don't special case TCG_OPF_CALL_CLOBBERRichard Henderson
With the "old" ldst ops we didn't know the real width of the result of the load, but with the "new" ldst ops we do. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-05Merge remote-tracking branch 'remotes/bonzini/softmmu-smap' into stagingPeter Maydell
* remotes/bonzini/softmmu-smap: (33 commits) target-i386: cleanup x86_cpu_get_phys_page_debug target-i386: fix protection bits in the TLB for SMEP target-i386: support long addresses for 4MB pages (PSE-36) target-i386: raise page fault for reserved bits in large pages target-i386: unify reserved bits and NX bit check target-i386: simplify pte/vaddr calculation target-i386: raise page fault for reserved physical address bits target-i386: test reserved PS bit on PML4Es target-i386: set correct error code for reserved bit access target-i386: introduce support for 1 GB pages target-i386: introduce do_check_protect label target-i386: tweak handling of PG_NX_MASK target-i386: commonize checks for PAE and non-PAE target-i386: commonize checks for 4MB and 4KB pages target-i386: commonize checks for 2MB and 4KB pages target-i386: fix coding standards in x86_cpu_handle_mmu_fault target-i386: simplify SMAP handling in MMU_KSMAP_IDX target-i386: fix kernel accesses with SMAP and CPL = 3 target-i386: move check_io helpers to seg_helper.c target-i386: rename KSMAP to KNOSMAP ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-05softmmu: move all load/store functions to cpu_ldst.hPaolo Bonzini
Unify pieces of cpu-all.h, exec-all.h, softmmu_exec.h and tcg/tcg.h into a single new header file with all helpers. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-04TCG: Fix tcg_gen_extr_i64_tl for 32bitAlexander Graf
We expose a generic helper "tcg_gen_extr_i64_tl" for 64bit targets, but the same function for 32bit targets is a misnomer and refers to an invalid function name. Fix up the definition to point to the correct internal helper names instead. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-04tcg: Remove TCG_TARGET_HAS_new_ldstRichard Henderson
Since all backends have been converted, remove the compatibility code. Acked-by: Claudio Fontana <claudio.fontana@huawei.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-04tci: Convert to new ldst opcodesRichard Henderson
Tested-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-04tcg-i386: Fix win64 qemu storeRichard Henderson
The first non-register argument isn't placed at offset 0. Cc: qemu-stable@nongnu.org Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg/optimize: Remember garbage high bits for 32-bit opsRichard Henderson
For a 64-bit host, the high bits of a register after a 32-bit operation are undefined. Adjust the temps mask for all 32-bit ops to reflect that. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg/optimize: Move updating of gen_opc_buf into tcg_opt_gen_mov*Richard Henderson
No functional change, just reduce a bit of redundancy. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg-sparc: Make debug_frame constRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg-s390: Make debug_frame constRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg-arm: Make debug_frame constRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg-aarch64: Make debug_frame constRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg-i386: Make debug_frame constRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg: Allow the debug_frame data structure to be constantRichard Henderson
Adjust the FDE to point to the code_buffer after we've copied it to the image, rather than requiring that the backend set it prior. This allows the backend to use read-only storage for its data. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg: Remove sizemask and flags arguments to tcg_gen_callNRichard Henderson
Take them from the TCGHelperInfo struct instead. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg: Save flags and computed sizemask in TCGHelperInfoRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg: Register the helper info struct rather than the nameRichard Henderson
This will let us find all the info from the hash table. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg: Inline tcg_gen_helperNRichard Henderson
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg: Use helper-gen.h in tcg-op.hRichard Henderson
No need to open-code the setup of the builtin helpers. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg: Push tcg-runtime routines into exec/helper-*Richard Henderson
Rather than special casing them, use the standard mechanisms for tcg helper generation. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg: Invert the inclusion of helper.hRichard Henderson
Rather than include helper.h with N values of GEN_HELPER, include a secondary file that sets up the macros to include helper.h. This minimizes the files that must be rebuilt when changing the macros for file N. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28tcg: Optimize brcond2 and setcond2 ne/eqRichard Henderson
If either the high or low pair can be resolved, we can simplify to either a constant or to a 32-bit comparison. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-27Merge remote-tracking branch 'remotes/rth/tcg-mips' into stagingPeter Maydell
* remotes/rth/tcg-mips: (24 commits) tcg-mips: Enable direct chaining of TBs tcg-mips: Simplify movcond tcg-mips: Simplify brcond2 tcg-mips: Improve setcond eq/ne vs zeros tcg-mips: Simplify setcond2 tcg-mips: Simplify brcond tcg-mips: Simplify setcond tcg-mips: Commonize opcode implementations tcg-mips: Improve add2/sub2 tcg-mips: Hoist args loads tcg-mips: Fix subtract immediate range tcg-mips: Name the opcode enumeration tcg-mips: Use EXT for AND on mips32r2 tcg-mips: Use T9 for TCG_TMP1 tcg-mips: Introduce TCG_TMP0, TCG_TMP1 tcg-mips: Rearrange register allocation tcg-mips: Convert to new_ldst tcg-mips: Convert to new qemu_l/st helpers tcg-mips: Move softmmu slow path out of line tcg-mips: Split large ldst offsets ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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