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RISC-V: Support pointer masking extension 1.0

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- Adding Ssnpm, Smnpm, Smmpm, Sspm, and Supm
- No new CSR added
- Pointer masking only applies to RV64
- Ref: https://github.com/riscv/riscv-j-extension/releases/download/pointer-masking-ratified/pointer-masking-ratified.pdf

Signed-off-by: Jerry Zhang Jian <jerry.zhangjian@sifive.com>
This commit is contained in:
Jerry Zhang Jian 2025-03-17 20:16:35 +08:00 committed by Nelson Chu
parent 614d1b72ce
commit 7b2a5f7183
5 changed files with 50 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
bfd/elfxx-riscv.c
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@ -1477,6 +1477,11 @@ static struct riscv_supported_ext riscv_supported_std_s_ext[] =
{"svnapot", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"svpbmt", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"ssqosid", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"ssnpm", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"smnpm", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"smmpm", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"sspm", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{"supm", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
{NULL, 0, 0, 0, 0}
};
@ -2125,6 +2130,36 @@ riscv_parse_check_conflicts (riscv_parse_subset_t *rps)
(_("`xtheadvector' is conflict with the `v' extension"));
no_conflict = false;
}
if (riscv_lookup_subset (rps->subset_list, "ssnpm", &subset) && xlen != 64)
{
rps->error_handler (_ ("rv%d does not support the `ssnpm' extension"),
xlen);
no_conflict = false;
}
if (riscv_lookup_subset (rps->subset_list, "smnpm", &subset) && xlen != 64)
{
rps->error_handler (_ ("rv%d does not support the `smnpm' extension"),
xlen);
no_conflict = false;
}
if (riscv_lookup_subset (rps->subset_list, "smmpm", &subset) && xlen != 64)
{
rps->error_handler (_ ("rv%d does not support the `smmpm' extension"),
xlen);
no_conflict = false;
}
if (riscv_lookup_subset (rps->subset_list, "sspm", &subset) && xlen != 64)
{
rps->error_handler (_ ("rv%d does not support the `sspm' extension"),
xlen);
no_conflict = false;
}
if (riscv_lookup_subset (rps->subset_list, "supm", &subset) && xlen != 64)
{
rps->error_handler (_ ("rv%d does not support the `supm' extension"),
xlen);
no_conflict = false;
}
bool support_zve = false;
bool support_zvl = false;

2
gas/NEWS
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@ -6,7 +6,7 @@
directives, the file need to be rebuilt since 2.45.
* Add support for RISC-V standard extensions:
ssqosid v1.0.
ssqosid v1.0, ssnpm v1.0, smnpm v1.0, smmpm v1.0, sspm v1.0, supm v1.0.
* Add support for RISC-V vendor extensions:
T-Head: xtheadvdot v1.0.

3
gas/testsuite/gas/riscv/march-fail-rv32-pointer-masking.d Normal file
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@ -0,0 +1,3 @@
#as: -march=rv32i_ssnpm_smnpm_smmpm_sspm_supm
#source: empty.s
#error_output: march-fail-rv32-pointer-masking.l

6
gas/testsuite/gas/riscv/march-fail-rv32-pointer-masking.l Normal file
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@ -0,0 +1,6 @@
.*Assembler messages:
.*Error: rv32 does not support the `ssnpm' extension
.*Error: rv32 does not support the `smnpm' extension
.*Error: rv32 does not support the `smmpm' extension
.*Error: rv32 does not support the `sspm' extension
.*Error: rv32 does not support the `supm' extension

5
gas/testsuite/gas/riscv/march-help.l
View File

@ -140,6 +140,11 @@ All available -march extensions for RISC-V:
svnapot 1.0
svpbmt 1.0
ssqosid 1.0
ssnpm 1.0
smnpm 1.0
smmpm 1.0
sspm 1.0
supm 1.0
xcvalu 1.0
xcvbi 1.0
xcvbitmanip 1.0