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Groups > linux.kernel > #1427475
| From | Andreas Schwab <schwab@suse.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 04/27] [AARCH64] Add PTR_REG, PTR_LOG_SIZE, and PTR_SIZE. Use it in LDST_PCREL and LDST_GLOBAL. |
| Date | 2016-06-21 10:50 +0200 |
| Message-ID | <rMpxD-3qk-11@gated-at.bofh.it> (permalink) |
| References | <rMoBA-2OV-31@gated-at.bofh.it> <rMpxD-3qk-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Yury Norov <ynorov@caviumnetworks.com> writes: > diff --git a/sysdeps/aarch64/sysdep.h b/sysdeps/aarch64/sysdep.h > index 4cb028f..f2ea821 100644 > --- a/sysdeps/aarch64/sysdep.h > +++ b/sysdeps/aarch64/sysdep.h > @@ -23,10 +23,16 @@ > > #ifdef __LP64__ > #define AARCH64_R(NAME) R_AARCH64_ ## NAME > +#define PTR_REG(n) x##n > +#define PTR_LOG_SIZE 3 > #else > #define AARCH64_R(NAME) R_AARCH64_P32_ ## NAME > +#define PTR_REG(n) w##n > +#define PTR_LOG_SIZE 2 > #endif > > +#define PTR_SIZE (1<<PTR_LOG_SIZE) > + > #ifdef __ASSEMBLER__ > > /* Syntactic details of assembler. */ > @@ -87,16 +93,18 @@ > # define L(name) .L##name > #endif > > -/* Load or store to/from a pc-relative EXPR into/from R, using T. */ > -#define LDST_PCREL(OP, R, T, EXPR) \ > - adrp T, EXPR; \ > - OP R, [T, #:lo12:EXPR];\ > - > -/* Load or store to/from a got-relative EXPR into/from R, using T. */ > -#define LDST_GLOBAL(OP, R, T, EXPR) \ > - adrp T, :got:EXPR; \ > - ldr T, [T, #:got_lo12:EXPR];\ > - OP R, [T]; > +/* Load or store to/from a pc-relative EXPR into/from R, using T. > + Note R and T are register numbers and not register names. */ > +#define LDST_PCREL(OP, R, T, EXPR) \ > + adrp x##T, EXPR; \ > + OP PTR_REG (R), [x##T, #:lo12:EXPR]; \ > + > +/* Load or store to/from a got-relative EXPR into/from R, using T. > + Note R and T are register numbers and not register names. */ > +#define LDST_GLOBAL(OP, R, T, EXPR) \ > + adrp x##T, :got:EXPR; \ > + ldr PTR_REG (T), [x##T, #:got_lo12:EXPR]; \ > + OP x##R, [x##T]; I think this needs to be PTR_REG(x). Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."
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Re: [PATCH 04/27] [AARCH64] Add PTR_REG, PTR_LOG_SIZE, and PTR_SIZE. Use it in LDST_PCREL and LDST_GLOBAL. Andreas Schwab <schwab@suse.de> - 2016-06-21 10:50 +0200 Re: [PATCH 04/27] [AARCH64] Add PTR_REG, PTR_LOG_SIZE, and PTR_SIZE. Use it in LDST_PCREL and LDST_GLOBAL. Andreas Schwab <schwab@suse.de> - 2016-06-21 11:20 +0200
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