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author | Peter Maydell <peter.maydell@linaro.org> | 2023-02-03 09:30:45 +0000 |
---|---|---|
committer | Peter Maydell <peter.maydell@linaro.org> | 2023-02-03 09:30:45 +0000 |
commit | bf4460a8d9a86f6cfe05d7a7f470c48e3a93d8b2 (patch) | |
tree | 65cd5cd1f1d20f1375f68dbbed6d4dcf214ef6db /include/exec | |
parent | f991d61d35d037ba5e627becb6f99bfd065443bf (diff) | |
parent | 709bcd7da3f6b4655d910634a0d520fa1439df38 (diff) | |
download | qemu-bf4460a8d9a86f6cfe05d7a7f470c48e3a93d8b2.zip qemu-bf4460a8d9a86f6cfe05d7a7f470c48e3a93d8b2.tar.gz qemu-bf4460a8d9a86f6cfe05d7a7f470c48e3a93d8b2.tar.bz2 |
Merge tag 'pull-tcg-20230123' of https://gitlab.com/rth7680/qemu into staging
common-user: Re-enable ppc32 host
tcg: Avoid recursion in tcg_gen_mulu2_i32
tcg: Mark tcg helpers noinline to avoid an issue with LTO
tcg/arm: Use register pair allocation for qemu_{ld,st}_i64
disas: Enable loongarch disassembler, and fixes
tcg/loongarch64: Improve move immediate
tcg/loongarch64: Improve add immediate
tcg/loongarch64: Improve setcond
tcg/loongarch64: Implement movcond
tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst
tcg/loongarch64: Reorg goto_tb implementation
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* tag 'pull-tcg-20230123' of https://gitlab.com/rth7680/qemu:
tcg/loongarch64: Reorg goto_tb implementation
tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst
tcg/loongarch64: Implement movcond
tcg/loongarch64: Improve setcond expansion
tcg/loongarch64: Introduce tcg_out_addi
tcg/loongarch64: Update tcg-insn-defs.c.inc
tcg/loongarch64: Optimize immediate loading
target/loongarch: Disassemble pcadd* addresses
target/loongarch: Disassemble jirl properly
target/loongarch: Enable the disassembler for host tcg
tcg: Mark tcg helpers noinline to avoid an issue with LTO
linux-user: Implment host/ppc/host-signal.h
common-user/host/ppc: Implement safe-syscall.inc.S
tcg/arm: Use register pair allocation for qemu_{ld,st}_i64
tcg: Avoid recursion in tcg_gen_mulu2_i32
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/exec')
-rw-r--r-- | include/exec/helper-proto.h | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/include/exec/helper-proto.h b/include/exec/helper-proto.h index c4b1bda..7a3f04b 100644 --- a/include/exec/helper-proto.h +++ b/include/exec/helper-proto.h @@ -6,34 +6,49 @@ #include "exec/helper-head.h" +/* + * Work around an issue with --enable-lto, in which GCC's ipa-split pass + * decides to split out the noreturn code paths that raise an exception, + * taking the __builtin_return_address() along into the new function, + * where it no longer computes a value that returns to TCG generated code. + * Despite the name, the noinline attribute affects splitter, so this + * prevents the optimization in question. Given that helpers should not + * otherwise be called directly, this should have any other visible effect. + * + * See https://gitlab.com/qemu-project/qemu/-/issues/1454 + */ +#define DEF_HELPER_ATTR __attribute__((noinline)) + #define DEF_HELPER_FLAGS_0(name, flags, ret) \ -dh_ctype(ret) HELPER(name) (void); +dh_ctype(ret) HELPER(name) (void) DEF_HELPER_ATTR; #define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ -dh_ctype(ret) HELPER(name) (dh_ctype(t1)); +dh_ctype(ret) HELPER(name) (dh_ctype(t1)) DEF_HELPER_ATTR; #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ -dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2)); +dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2)) DEF_HELPER_ATTR; #define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \ -dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3)); +dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), \ + dh_ctype(t3)) DEF_HELPER_ATTR; #define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \ dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ - dh_ctype(t4)); + dh_ctype(t4)) DEF_HELPER_ATTR; #define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \ dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ - dh_ctype(t4), dh_ctype(t5)); + dh_ctype(t4), dh_ctype(t5)) DEF_HELPER_ATTR; #define DEF_HELPER_FLAGS_6(name, flags, ret, t1, t2, t3, t4, t5, t6) \ dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ - dh_ctype(t4), dh_ctype(t5), dh_ctype(t6)); + dh_ctype(t4), dh_ctype(t5), \ + dh_ctype(t6)) DEF_HELPER_ATTR; #define DEF_HELPER_FLAGS_7(name, flags, ret, t1, t2, t3, t4, t5, t6, t7) \ dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ dh_ctype(t4), dh_ctype(t5), dh_ctype(t6), \ - dh_ctype(t7)); + dh_ctype(t7)) DEF_HELPER_ATTR; #define IN_HELPER_PROTO @@ -51,5 +66,6 @@ dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ #undef DEF_HELPER_FLAGS_5 #undef DEF_HELPER_FLAGS_6 #undef DEF_HELPER_FLAGS_7 +#undef DEF_HELPER_ATTR #endif /* HELPER_PROTO_H */ |