Comments (3)
smithp35
commented on June 16, 2024
1
Thanks for reporting. I guess that this would take the example for the small code-model
adrp x8, :got_auth: symbol
add x8, x8, :got_auth_lo12: symbol
ldr x0, [x8]
// Authenticate to get unsigned pointer
autia x0, x8
And use something like
adr x8, :got_auth: symbol // Needs new relocation like R_AARCH64_GOT_ADR_PREL21
ldr x0, [x8]
// Authenticate to get unsigned pointer
autia x0, x
I'd probably use R_AARCH64_AUTH_GOT_ADR_PREL_LO21 to follow the convention set by R_<CLS>_ ADR_PREL_LO21
Will hopefully get to this within a few days.
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kovdan01
commented on June 16, 2024
Tagging @asl
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smithp35
commented on June 16, 2024
PR for addition of relocation #259
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Related Issues (20)
- RST code blocks of type "none" cause warnings when generating html
- Word wrap in RST source files is inconsistent
- PAuthABI support for DWARF (Debugging and Unwinding)
- Reserve DT_ tags used in the PAuthABI and MemtagABI.
- static linkers (lld and GNU ld) out of sync with aaelf64 for GOT relocations with addends. HOT 1
- Need dynamic tag to reflect .note.gnu.prop and/or .note.AARCH64-PAUTH-ABI-tag section addresses HOT 3
- Define GOT-Relative data relocation HOT 3
- Undefined weak symbol's address HOT 8
- Missing page "Semihosting for AArch32 and AArch64" HOT 4
- [pauthabielf64] Define `NT_ARM_TYPE_PAUTH_ABI_TAG` constant
- Some documents have stopped rendering in the preview mode in the Github UI HOT 3
- aaelf64/aaelf64.rst can't preview HOT 2
- Clarify use of DWARF versions
- Quantifying the benefits of DT_AARCH64_AUTH_RELR HOT 5
- [PAUTHABIELF64] Possible typo in `R_AARCH64_AUTH_GOT_LO12_NC` HOT 3
- [semihosting] Mention security implications of semihosting.
- PCS is not clear if SVE VG can be changed
- [AAPCS64] Clarify B.5 and B.6 HOT 1
- RFC: Add pagesize to __ifunc_arg_t HOT 2
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