From: mengqinggang <mengqinggang@loongson.cn>
To: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>,
libc-alpha@sourceware.org
Cc: xuchenghua@loongson.cn, caiyinyu@loongson.cn,
chenglulu@loongson.cn, cailulu@loongson.cn, xry111@xry111.site,
i.swmail@xen0n.name, maskray@google.com, luweining@loongson.cn,
wanglei@loongson.cn, hejinyang@loongson.cn
Subject: Re: [PATCH v4] LoongArch: Add support for TLS Descriptors
Date: Fri, 26 Apr 2024 15:20:37 +0800 [thread overview]
Message-ID: <5605cad1-2c5f-dca7-a43b-2f0ce4db5167@loongson.cn> (raw)
In-Reply-To: <8f57e7d3-3549-494e-b13f-421e71e0c572@linaro.org>
在 2024/4/5 上午2:46, Adhemerval Zanella Netto 写道:
> diff --git a/sysdeps/loongarch/tlsdesc.sym b/sysdeps/loongarch/tlsdesc.sym
> new file mode 100644
> index 0000000000..a0b945e449
> --- /dev/null
> +++ b/sysdeps/loongarch/tlsdesc.sym
> @@ -0,0 +1,28 @@
> +#include <stddef.h>
> +#include <sysdep.h>
> +#include <tls.h>
> +#include <link.h>
> +#include <dl-tlsdesc.h>
> +
> +#define SHARED 1
> +
> +#include <ldsodefs.h>
> +
> +#define GLRO_offsetof(name) offsetof (struct rtld_global_ro, _##name)
> +
> +--
> +
> +-- Abuse tls.h macros to derive offsets relative to the thread register.
> +
> +TLSDESC_ARG offsetof(struct tlsdesc, arg)
> +TLSDESC_GEN_COUNT offsetof(struct tlsdesc_dynamic_arg, gen_count)
> +TLSDESC_MODID offsetof(struct tlsdesc_dynamic_arg, tlsinfo.ti_module)
> +TLSDESC_MODOFF offsetof(struct tlsdesc_dynamic_arg, tlsinfo.ti_offset)
> +TCBHEAD_DTV offsetof(tcbhead_t, dtv)
> +DTV_COUNTER offsetof(dtv_t, counter)
> +TLS_DTV_UNALLOCATED TLS_DTV_UNALLOCATED
> +TLS_DTV_OFFSET TLS_DTV_OFFSET
> +SIZE_OF_DTV sizeof(tcbhead_t)
> +GLRO_DL_HWCAP_OFFSET GLRO_offsetof (dl_hwcap)
> +HWCAP_LOONGARCH_LSX HWCAP_LOONGARCH_LSX
> +HWCAP_LOONGARCH_LASX HWCAP_LOONGARCH_LASX
> Ok, although I would expect you can include hwcap.h on assembly files.
>
Include hwcap.h gets an error:
error: #error "Never include <bits/hwcap.h> directly; use
<sys/auxv.h> instead.
But auxv.h has c code.
prev parent reply other threads:[~2024-04-26 7:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-31 7:36 [PATCH v4] LoongArch: Add support for TLS Descriptors mengqinggang
2024-04-04 18:46 ` Adhemerval Zanella Netto
2024-04-26 7:20 ` mengqinggang [this message]
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