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Generic System V Application Binary Interface

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Discuss modification and extension of generic System V Application Binary Interface. The current gABI

draft is at gabi.xinuos.com.

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Cary Coutant, … Mark Wielaard9

1:56 PM

New gABI/ELF Spec Available for Public Review

Hi Cary, On Wed, 2025-09-03 at 11:23 -0700, Cary Coutant wrote: > > Could you add a license to

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New gABI/ELF Spec Available for Public Review

Hi Cary, On Wed, 2025-09-03 at 11:23 -0700, Cary Coutant wrote: > > Could you add a license to

1:56 PM

connor horman, Cary Coutant4

Sep 5

OSABI Assignment

If it came down to it, we could let e_ident[EI_OSABI] = 63 be an escape value, and burn another

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OSABI Assignment

If it came down to it, we could let e_ident[EI_OSABI] = 63 be an escape value, and burn another

Sep 5

Sep 4

New e_machine values assigned

Here are two new e_machine values that have been allocated this year: #define EM_SW64 268 /* Wuxi

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New e_machine values assigned

Here are two new e_machine values that have been allocated this year: #define EM_SW64 268 /* Wuxi

Sep 4

H.J. Lu, … Mark Wielaard10

Aug 20

Re: [PATCH] ld: entry size and merge/strings attributes propagation

Hi Sam, On Wed, Aug 20, 2025 at 05:49:33PM +0100, Sam James wrote: > Cary Coutant <ccoutant@

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Re: [PATCH] ld: entry size and merge/strings attributes propagation

Hi Sam, On Wed, Aug 20, 2025 at 05:49:33PM +0100, Sam James wrote: > Cary Coutant <ccoutant@

Aug 20

Joseph Koshy, Cary Coutant2

11/24/24

Canonical list of gABI constants?

Here is the current list of e_machine constants. The values up to and including EM_RISCV (243) are

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Canonical list of gABI constants?

Here is the current list of e_machine constants. The values up to and including EM_RISCV (243) are

11/24/24

Jozef Lawrynowicz, … Fangrui Song16

10/17/24

[RFC] Proposal for new ELF extension - "Symbol meta-information"

There is a resurrected thread on https://discourse.llvm.org/t/rfc-symtab-meta-a-symtab-extension-to-

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[RFC] Proposal for new ELF extension - "Symbol meta-information"

There is a resurrected thread on https://discourse.llvm.org/t/rfc-symtab-meta-a-symtab-extension-to-

10/17/24

Fangrui Song, … Fangrui Song3

9/26/24

CREL: A compact relocation format

On Thu, Sep 26, 2024 at 2:12 AM Florian Weimer <fwe...@redhat.com> wrote: > > * Fangrui

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CREL: A compact relocation format

On Thu, Sep 26, 2024 at 2:12 AM Florian Weimer <fwe...@redhat.com> wrote: > > * Fangrui

9/26/24

Adam Sobieski, Kirk Hays3

9/19/24

Enabling Meta-commands

Thank you for indicating BusyBox. I hadn't considered that technique. For discussion, arguments

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Enabling Meta-commands

Thank you for indicating BusyBox. I hadn't considered that technique. For discussion, arguments

9/19/24

5/21/24

New e_machine value for Loongson LoongGPU

I've allocated a new e_machine value for the Loongson LoongGPU: EM_LOONGGPU = 267 -cary

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New e_machine value for Loongson LoongGPU

I've allocated a new e_machine value for the Loongson LoongGPU: EM_LOONGGPU = 267 -cary

5/21/24

Fangrui Song, … r...@google.com24

4/5/24

RELLEB: A compact relocation format

Thanks for the support and feedback, James! On Thursday, April 4, 2024 at 5:10:49 AM UTC-7 James Y

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RELLEB: A compact relocation format

Thanks for the support and feedback, James! On Thursday, April 4, 2024 at 5:10:49 AM UTC-7 James Y

4/5/24

pudh...@gmail.com, Cary Coutant2

4/3/24

New e_machine for Cambricon BANG architecture

I have allocated EM_BANG = 266. -cary On Mon, Mar 25, 2024 at 5:39 AM pudh...@gmail.com <pudh4418

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New e_machine for Cambricon BANG architecture

I have allocated EM_BANG = 266. -cary On Mon, Mar 25, 2024 at 5:39 AM pudh...@gmail.com <pudh4418

4/3/24

4/1/24

Light ELF: exploring potential size reduction

ELF's design emphasizes natural size and alignment guidelines for its control structures. While

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Light ELF: exploring potential size reduction

ELF's design emphasizes natural size and alignment guidelines for its control structures. While

4/1/24

Mark Wielaard, Roland McGrath5

8/24/23

Relative relocation (RELR) and libelf interface

I finally submitted my changes to elfutils libelf, eu-readelf and eu-elflint for supporting Relative

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Relative relocation (RELR) and libelf interface

I finally submitted my changes to elfutils libelf, eu-readelf and eu-elflint for supporting Relative

8/24/23

Fangrui Song, … Cary Coutant11

7/13/23

Allow SHF_ALLOC | SHF_COMPRESSED sections

On Thursday, July 13, 2023 at 11:55:22 AM UTC-7 Cary Coutant wrote: Hi, I agree with Michael and Ali.

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Allow SHF_ALLOC | SHF_COMPRESSED sections

On Thursday, July 13, 2023 at 11:55:22 AM UTC-7 Cary Coutant wrote: Hi, I agree with Michael and Ali.

7/13/23

Fangrui Song, Michael Matz4

4/12/23

What if the result of elf_hash is larger than UINT32_MAX?

Hello, > According to > https://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash, the

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What if the result of elf_hash is larger than UINT32_MAX?

Hello, > According to > https://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash, the

4/12/23

2/16/23

New e_machine value for SiMa.ai

I have assigned a new e_machine value for the SiMa.ai Neural Network Accelerator: #define EM_SIMA_MLA

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New e_machine value for SiMa.ai

I have assigned a new e_machine value for the SiMa.ai Neural Network Accelerator: #define EM_SIMA_MLA

2/16/23

Stephen Neuendorffer, Cary Coutant2

1/18/23

New e_machine for AMD AIEngine

> We'd like to get a new e_machine value assigned for the AMD/Xilinx AIEngine architecture,

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New e_machine for AMD AIEngine

> We'd like to get a new e_machine value assigned for the AMD/Xilinx AIEngine architecture,

1/18/23

Fangrui Song, … Roland McGrath20

9/11/22

Add new ch_type value: ELFCOMPRESS_ZSTD

Circling back. FreeBSD and glibc have defined ELFCOMPRESS_ZSTD in their elf.h. musl will supposedly

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Add new ch_type value: ELFCOMPRESS_ZSTD

Circling back. FreeBSD and glibc have defined ELFCOMPRESS_ZSTD in their elf.h. musl will supposedly

9/11/22

connor horman, ali_e...@emvision.com6

9/8/22

Use of sh_link and sh_info for SHT_NOTE sections.

On Thu, 8 Sept 2022 at 00:23, <ali_e...@emvision.com> wrote: On 9/6/22 2:15 PM, connor

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Use of sh_link and sh_info for SHT_NOTE sections.

On Thu, 8 Sept 2022 at 00:23, <ali_e...@emvision.com> wrote: On 9/6/22 2:15 PM, connor

9/8/22

Carlos O'Donell, … Michael Matz27

8/23/22

Making DT_HASH optional?

Hello, On Tue, 23 Aug 2022, Florian Weimer wrote: > >> >> I would go even further: The

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Making DT_HASH optional?

Hello, On Tue, 23 Aug 2022, Florian Weimer wrote: > >> >> I would go even further: The

8/23/22

Cary Coutant, … ali_e...@emvision.com9

8/17/22

Proposal: Add new dynamic symbol table hash to ELF standard

On 8/12/22 5:36 PM, 'Fangrui Song' via Generic System V Application Binary Interface wrote:

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Proposal: Add new dynamic symbol table hash to ELF standard

On 8/12/22 5:36 PM, 'Fangrui Song' via Generic System V Application Binary Interface wrote:

8/17/22

chor...@gmail.com, Cary Coutant2

4/27/22

New e_machine for Clever-ISA.

I looked through the documents you linked to, and I get a strong impression that this is an

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New e_machine for Clever-ISA.

I looked through the documents you linked to, and I get a strong impression that this is an

4/27/22

Alexander Fedotov, Cary Coutant6

2/3/22

New e_machine for NXP 56800V4 processor

Alexander informed me that the processor's name has been changed from 56800V4 to 56800EF, so I

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New e_machine for NXP 56800V4 processor

Alexander informed me that the processor's name has been changed from 56800V4 to 56800EF, so I

2/3/22

Gregory Szorc, … Carlos O'Donell4

1/31/22

gABI's role in microarchitecture targeting

On 1/31/22 11:11, Ali Bahrami wrote: > On 1/28/22 9:57 PM, 'Roland McGrath' via Generic

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gABI's role in microarchitecture targeting

On 1/31/22 11:11, Ali Bahrami wrote: > On 1/28/22 9:57 PM, 'Roland McGrath' via Generic

1/31/22

Luis Machado, … Mark Wielaard20

11/15/21

New arch-independent OS-independent PT_* segment type for memory tags

On Mon, 2021-11-15 at 13:37 +0100, Florian Weimer wrote: > I think you need to document them in

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New arch-independent OS-independent PT_* segment type for memory tags

On Mon, 2021-11-15 at 13:37 +0100, Florian Weimer wrote: > I think you need to document them in

11/15/21

Cary Coutant, … Roland McGrath14

11/2/21

Proposal: New DT_REQUIRED tag to identify required features

For phdrs, if we look at the extensions that have been added over the years, at least half are in the

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Proposal: New DT_REQUIRED tag to identify required features

For phdrs, if we look at the extensions that have been added over the years, at least half are in the

11/2/21

Fangrui Song, … Roland McGrath6

11/2/21

STB_GLOBAL/STB_WEAK in symbol lookup

Yes, indirect symbols can be thought of as an optimization of tail-call stubs for functions. However,

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STB_GLOBAL/STB_WEAK in symbol lookup

Yes, indirect symbols can be thought of as an optimization of tail-call stubs for functions. However,

11/2/21

Fangrui Song, … Cary Coutant10

11/2/21

GRP_COMDAT group with STB_LOCAL signature

On 2021-11-01, Cary Coutant wrote: >> I'm not sure that I agree that there's

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GRP_COMDAT group with STB_LOCAL signature

On 2021-11-01, Cary Coutant wrote: >> I'm not sure that I agree that there's

11/2/21

Rahul Chaudhry, … Fangrui Song35

11/1/21

Proposal for a new section type SHT_RELR

On 2021-10-29, HJ Lu wrote: >On Tue, Sep 4, 2018 at 10:15 AM 'Yunlian Jiang' via Generic

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Proposal for a new section type SHT_RELR

On 2021-10-29, HJ Lu wrote: >On Tue, Sep 4, 2018 at 10:15 AM 'Yunlian Jiang' via Generic

11/1/21

Jeff Law, Cary Coutant3

8/20/21

New e_machine value for Tachyum's processor

On 8/6/2021 4:09 PM, Cary Coutant wrote: > I'll hold the value 261 for you. Please provide the

unread,

New e_machine value for Tachyum's processor

On 8/6/2021 4:09 PM, Cary Coutant wrote: > I'll hold the value 261 for you. Please provide the

8/20/21

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