From 3fc6c3dc2af2283bd89f1b1278b39922416e8d1b Mon Sep 17 00:00:00 2001 From: Nelson Chu Date: Fri, 29 May 2020 15:31:46 +0800 Subject: [PATCH] RISC-V: Don't generate the ELF privilege attributes when no CSR are used. gas/ * config/tc-riscv.c (explicit_csr): New static boolean. Used to indicate CSR are explictly used. (riscv_ip): Set explicit_csr to TRUE if any CSR is used. (riscv_write_out_attrs): If we already have set elf priv attributes, then generate them. Otherwise, don't generate them when no CSR are used. * testsuite/gas/riscv/attribute-01.d: Remove the priv attributes. * testsuite/gas/riscv/attribute-02.d: Likewise. * testsuite/gas/riscv/attribute-03.d: Likewise. * testsuite/gas/riscv/attribute-04.d: Likewise. * testsuite/gas/riscv/attribute-05.d: Likewise. * testsuite/gas/riscv/attribute-06.d: Likewise. * testsuite/gas/riscv/attribute-07.d: Likewise. * testsuite/gas/riscv/attribute-08.d: Likewise. * testsuite/gas/riscv/attribute-09.d: Likewise. * testsuite/gas/riscv/attribute-10.d: Likewise. * testsuite/gas/riscv/attribute-unknown.d: Likewise. * testsuite/gas/riscv/attribute-11.s: New testcase. * testsuite/gas/riscv/attribute-11.d: New testcase. The CSR is used, so we should output the ELF priv attributes. * testsuite/gas/riscv/attribute-12.d: New testcase. The CSR is used, so output the priv attributes according to the -mpriv-spec. * testsuite/gas/riscv/attribute-13.d: New testcase. The CSR isn't used, so ignore the -mpriv-spec setting. ld/ * testsuite/ld-riscv-elf/attr-merge-arch-01.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-02.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-03.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-stack-align.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-strict-align-01.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-strict-align-02.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-strict-align-03.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-strict-align-04.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-strict-align-05.d: Likewise. * testsuite/ld-riscv-elf/call-relax.d: Add -mno-arch-attr. --- gas/ChangeLog | 27 +++++++++++++++++++ gas/config/tc-riscv.c | 9 +++++++ gas/testsuite/gas/riscv/attribute-01.d | 3 --- gas/testsuite/gas/riscv/attribute-02.d | 3 --- gas/testsuite/gas/riscv/attribute-03.d | 3 --- gas/testsuite/gas/riscv/attribute-04.d | 3 --- gas/testsuite/gas/riscv/attribute-06.d | 3 --- gas/testsuite/gas/riscv/attribute-07.d | 3 --- gas/testsuite/gas/riscv/attribute-08.d | 3 --- gas/testsuite/gas/riscv/attribute-09.d | 3 --- gas/testsuite/gas/riscv/attribute-10.d | 3 --- gas/testsuite/gas/riscv/attribute-11.d | 8 ++++++ gas/testsuite/gas/riscv/attribute-11.s | 1 + gas/testsuite/gas/riscv/attribute-12.d | 9 +++++++ gas/testsuite/gas/riscv/attribute-13.d | 6 +++++ gas/testsuite/gas/riscv/attribute-unknown.d | 3 --- ld/ChangeLog | 14 ++++++++++ .../ld-riscv-elf/attr-merge-arch-01.d | 3 --- .../ld-riscv-elf/attr-merge-arch-02.d | 3 --- .../ld-riscv-elf/attr-merge-arch-03.d | 3 --- .../ld-riscv-elf/attr-merge-stack-align.d | 2 -- .../ld-riscv-elf/attr-merge-strict-align-01.d | 3 --- .../ld-riscv-elf/attr-merge-strict-align-02.d | 3 --- .../ld-riscv-elf/attr-merge-strict-align-03.d | 3 --- .../ld-riscv-elf/attr-merge-strict-align-04.d | 3 --- .../ld-riscv-elf/attr-merge-strict-align-05.d | 3 --- ld/testsuite/ld-riscv-elf/call-relax.d | 2 +- 27 files changed, 75 insertions(+), 57 deletions(-) create mode 100644 gas/testsuite/gas/riscv/attribute-11.d create mode 100644 gas/testsuite/gas/riscv/attribute-11.s create mode 100644 gas/testsuite/gas/riscv/attribute-12.d create mode 100644 gas/testsuite/gas/riscv/attribute-13.d diff --git a/gas/ChangeLog b/gas/ChangeLog index 19cefba5e62..14d10799f0b 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,30 @@ +2020-06-05 Nelson Chu + + * config/tc-riscv.c (explicit_csr): New static boolean. + Used to indicate CSR are explictly used. + (riscv_ip): Set explicit_csr to TRUE if any CSR is used. + (riscv_write_out_attrs): If we already have set elf priv + attributes, then generate them. Otherwise, don't generate + them when no CSR are used. + * testsuite/gas/riscv/attribute-01.d: Remove the priv attributes. + * testsuite/gas/riscv/attribute-02.d: Likewise. + * testsuite/gas/riscv/attribute-03.d: Likewise. + * testsuite/gas/riscv/attribute-04.d: Likewise. + * testsuite/gas/riscv/attribute-05.d: Likewise. + * testsuite/gas/riscv/attribute-06.d: Likewise. + * testsuite/gas/riscv/attribute-07.d: Likewise. + * testsuite/gas/riscv/attribute-08.d: Likewise. + * testsuite/gas/riscv/attribute-09.d: Likewise. + * testsuite/gas/riscv/attribute-10.d: Likewise. + * testsuite/gas/riscv/attribute-unknown.d: Likewise. + * testsuite/gas/riscv/attribute-11.s: New testcase. + * testsuite/gas/riscv/attribute-11.d: New testcase. The CSR is + used, so we should output the ELF priv attributes. + * testsuite/gas/riscv/attribute-12.d: New testcase. The CSR is + used, so output the priv attributes according to the -mpriv-spec. + * testsuite/gas/riscv/attribute-13.d: New testcase. The CSR isn't + used, so ignore the -mpriv-spec setting. + 2020-06-04 H.J. Lu * config/tc-ip2k. (ip2k_apply_fix): Pass endianness to diff --git a/gas/config/tc-riscv.c b/gas/config/tc-riscv.c index da94b5b1cfb..cc77dbf6c00 100644 --- a/gas/config/tc-riscv.c +++ b/gas/config/tc-riscv.c @@ -374,6 +374,9 @@ static bfd_boolean start_assemble = FALSE; /* Indicate ELF attributes are explictly set. */ static bfd_boolean explicit_attr = FALSE; +/* Indicate CSR are explictly used. */ +static bfd_boolean explicit_csr = FALSE; + /* Macros for encoding relaxation state for RVC branches and far jumps. */ #define RELAX_BRANCH_ENCODE(uncond, rvc, length) \ ((relax_substateT) \ @@ -2212,6 +2215,7 @@ riscv_ip (char *str, struct riscv_cl_insn *ip, expressionS *imm_expr, case 'E': /* Control register. */ insn_with_csr = TRUE; + explicit_csr = TRUE; if (reg_lookup (&s, RCLASS_CSR, ®no)) INSERT_OPERAND (CSR, *ip, regno); else @@ -3605,6 +3609,11 @@ riscv_write_out_attrs (void) && !riscv_set_default_priv_spec (NULL)) return; + /* If we already have set elf priv attributes, then generate them. + Otherwise, don't generate them when no CSR are used. */ + if (!explicit_csr) + return; + /* Re-write priv attributes by default_priv_spec. */ priv_str = riscv_get_priv_spec_name (default_priv_spec); p = priv_str; diff --git a/gas/testsuite/gas/riscv/attribute-01.d b/gas/testsuite/gas/riscv/attribute-01.d index f02734744e1..2e19e09abf2 100644 --- a/gas/testsuite/gas/riscv/attribute-01.d +++ b/gas/testsuite/gas/riscv/attribute-01.d @@ -4,6 +4,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p0_m2p0_a2p0_f2p0_d2p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/gas/testsuite/gas/riscv/attribute-02.d b/gas/testsuite/gas/riscv/attribute-02.d index 02b532d0a88..ae0195e9a2c 100644 --- a/gas/testsuite/gas/riscv/attribute-02.d +++ b/gas/testsuite/gas/riscv/attribute-02.d @@ -4,6 +4,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p0_m2p0_a2p0_f2p0_d2p0_xargle0p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/gas/testsuite/gas/riscv/attribute-03.d b/gas/testsuite/gas/riscv/attribute-03.d index ded529aa617..9916ff6e927 100644 --- a/gas/testsuite/gas/riscv/attribute-03.d +++ b/gas/testsuite/gas/riscv/attribute-03.d @@ -4,6 +4,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p0_m2p0_a2p0_f2p0_d2p0_xargle0p0_xfoo0p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/gas/testsuite/gas/riscv/attribute-04.d b/gas/testsuite/gas/riscv/attribute-04.d index df6c8182d5b..408464d01ce 100644 --- a/gas/testsuite/gas/riscv/attribute-04.d +++ b/gas/testsuite/gas/riscv/attribute-04.d @@ -4,6 +4,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p0_m2p0_a2p0_f2p0_d2p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/gas/testsuite/gas/riscv/attribute-06.d b/gas/testsuite/gas/riscv/attribute-06.d index e1d62c45db7..a2dd9fbb97e 100644 --- a/gas/testsuite/gas/riscv/attribute-06.d +++ b/gas/testsuite/gas/riscv/attribute-06.d @@ -4,6 +4,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/gas/testsuite/gas/riscv/attribute-07.d b/gas/testsuite/gas/riscv/attribute-07.d index 59f02b4c4e3..342a53752ce 100644 --- a/gas/testsuite/gas/riscv/attribute-07.d +++ b/gas/testsuite/gas/riscv/attribute-07.d @@ -4,6 +4,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv64i2p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/gas/testsuite/gas/riscv/attribute-08.d b/gas/testsuite/gas/riscv/attribute-08.d index 13b82a97a63..c10ac0ca353 100644 --- a/gas/testsuite/gas/riscv/attribute-08.d +++ b/gas/testsuite/gas/riscv/attribute-08.d @@ -4,6 +4,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32e1p9" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/gas/testsuite/gas/riscv/attribute-09.d b/gas/testsuite/gas/riscv/attribute-09.d index 53945a27ebc..cad1713b0a0 100644 --- a/gas/testsuite/gas/riscv/attribute-09.d +++ b/gas/testsuite/gas/riscv/attribute-09.d @@ -4,6 +4,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p1_m2p0_zicsr0p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/gas/testsuite/gas/riscv/attribute-10.d b/gas/testsuite/gas/riscv/attribute-10.d index 91691fda77a..ba903d17275 100644 --- a/gas/testsuite/gas/riscv/attribute-10.d +++ b/gas/testsuite/gas/riscv/attribute-10.d @@ -4,6 +4,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_zicsr2p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/gas/testsuite/gas/riscv/attribute-11.d b/gas/testsuite/gas/riscv/attribute-11.d new file mode 100644 index 00000000000..4bd66f0bb29 --- /dev/null +++ b/gas/testsuite/gas/riscv/attribute-11.d @@ -0,0 +1,8 @@ +#as: -march-attr +#readelf: -A +#source: attribute-11.s +Attribute Section: riscv +File Attributes + Tag_RISCV_arch: [a-zA-Z0-9_\"].* + Tag_RISCV_priv_spec: [0-9_\"].* +#... diff --git a/gas/testsuite/gas/riscv/attribute-11.s b/gas/testsuite/gas/riscv/attribute-11.s new file mode 100644 index 00000000000..81099b27ca1 --- /dev/null +++ b/gas/testsuite/gas/riscv/attribute-11.s @@ -0,0 +1 @@ + csrr a0, 0x0 diff --git a/gas/testsuite/gas/riscv/attribute-12.d b/gas/testsuite/gas/riscv/attribute-12.d new file mode 100644 index 00000000000..980b36cada6 --- /dev/null +++ b/gas/testsuite/gas/riscv/attribute-12.d @@ -0,0 +1,9 @@ +#as: -march-attr -mpriv-spec=1.9.1 +#readelf: -A +#source: attribute-11.s +Attribute Section: riscv +File Attributes + Tag_RISCV_arch: [a-zA-Z0-9_\"].* + Tag_RISCV_priv_spec: 1 + Tag_RISCV_priv_spec_minor: 9 + Tag_RISCV_priv_spec_revision: 1 diff --git a/gas/testsuite/gas/riscv/attribute-13.d b/gas/testsuite/gas/riscv/attribute-13.d new file mode 100644 index 00000000000..b8dfe3a7dee --- /dev/null +++ b/gas/testsuite/gas/riscv/attribute-13.d @@ -0,0 +1,6 @@ +#as: -march-attr -mpriv-spec=1.9.1 +#readelf: -A +#source: empty.s +Attribute Section: riscv +File Attributes + Tag_RISCV_arch: [a-zA-Z0-9_\"].* diff --git a/gas/testsuite/gas/riscv/attribute-unknown.d b/gas/testsuite/gas/riscv/attribute-unknown.d index 120e3dee6ca..667f21acfc1 100644 --- a/gas/testsuite/gas/riscv/attribute-unknown.d +++ b/gas/testsuite/gas/riscv/attribute-unknown.d @@ -4,8 +4,5 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: [a-zA-Z0-9_\"].* - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... Tag_unknown_255: "test" Tag_unknown_256: 123 \(0x7b\) diff --git a/ld/ChangeLog b/ld/ChangeLog index 00066c59c07..5b6805a31bc 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,3 +1,17 @@ +2020-06-05 Nelson Chu + + * testsuite/ld-riscv-elf/attr-merge-arch-01.d: The CSR isn't used, + so ignore the -mpriv-spec setting. + * testsuite/ld-riscv-elf/attr-merge-arch-02.d: Likewise. + * testsuite/ld-riscv-elf/attr-merge-arch-03.d: Likewise. + * testsuite/ld-riscv-elf/attr-merge-stack-align.d: Likewise. + * testsuite/ld-riscv-elf/attr-merge-strict-align-01.d: Likewise. + * testsuite/ld-riscv-elf/attr-merge-strict-align-02.d: Likewise. + * testsuite/ld-riscv-elf/attr-merge-strict-align-03.d: Likewise. + * testsuite/ld-riscv-elf/attr-merge-strict-align-04.d: Likewise. + * testsuite/ld-riscv-elf/attr-merge-strict-align-05.d: Likewise. + * testsuite/ld-riscv-elf/call-relax.d: Add -mno-arch-attr. + 2020-06-04 H.J. Lu PR ld/26080 diff --git a/ld/testsuite/ld-riscv-elf/attr-merge-arch-01.d b/ld/testsuite/ld-riscv-elf/attr-merge-arch-01.d index 032f9641ad2..5baaba4c16f 100644 --- a/ld/testsuite/ld-riscv-elf/attr-merge-arch-01.d +++ b/ld/testsuite/ld-riscv-elf/attr-merge-arch-01.d @@ -7,6 +7,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p0_m2p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/ld/testsuite/ld-riscv-elf/attr-merge-arch-02.d b/ld/testsuite/ld-riscv-elf/attr-merge-arch-02.d index 54a7621f2c3..a7d79a1ea2b 100644 --- a/ld/testsuite/ld-riscv-elf/attr-merge-arch-02.d +++ b/ld/testsuite/ld-riscv-elf/attr-merge-arch-02.d @@ -7,6 +7,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p0_m2p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/ld/testsuite/ld-riscv-elf/attr-merge-arch-03.d b/ld/testsuite/ld-riscv-elf/attr-merge-arch-03.d index 67f0437e328..d46dee808de 100644 --- a/ld/testsuite/ld-riscv-elf/attr-merge-arch-03.d +++ b/ld/testsuite/ld-riscv-elf/attr-merge-arch-03.d @@ -7,6 +7,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: "rv32i2p0_m2p0_xbar2p0_xfoo2p0" - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/ld/testsuite/ld-riscv-elf/attr-merge-stack-align.d b/ld/testsuite/ld-riscv-elf/attr-merge-stack-align.d index 5585fac3b7b..e4d965a3e99 100644 --- a/ld/testsuite/ld-riscv-elf/attr-merge-stack-align.d +++ b/ld/testsuite/ld-riscv-elf/attr-merge-stack-align.d @@ -8,6 +8,4 @@ Attribute Section: riscv File Attributes Tag_RISCV_stack_align: 16-bytes Tag_RISCV_arch: [a-zA-Z0-9_\"].* - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* #... diff --git a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-01.d b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-01.d index 91011a2ba4d..10399307bbb 100644 --- a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-01.d +++ b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-01.d @@ -8,6 +8,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: [a-zA-Z0-9_\"].* Tag_RISCV_unaligned_access: Unaligned access - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-02.d b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-02.d index 5bdea27948b..12ca1c4dd31 100644 --- a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-02.d +++ b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-02.d @@ -8,6 +8,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: [a-zA-Z0-9_\"].* Tag_RISCV_unaligned_access: Unaligned access - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-03.d b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-03.d index ac886fb7681..e41351da011 100644 --- a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-03.d +++ b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-03.d @@ -8,6 +8,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: [a-zA-Z0-9_\"].* Tag_RISCV_unaligned_access: Unaligned access - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-04.d b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-04.d index dd45f76317a..ac2a766cfca 100644 --- a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-04.d +++ b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-04.d @@ -7,6 +7,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: [a-zA-Z0-9_\"].* - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-05.d b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-05.d index ef0c154a121..608c05e8c38 100644 --- a/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-05.d +++ b/ld/testsuite/ld-riscv-elf/attr-merge-strict-align-05.d @@ -8,6 +8,3 @@ Attribute Section: riscv File Attributes Tag_RISCV_arch: [a-zA-Z0-9_\"].* Tag_RISCV_unaligned_access: Unaligned access - Tag_RISCV_priv_spec: [0-9_\"].* - Tag_RISCV_priv_spec_minor: [0-9_\"].* -#... diff --git a/ld/testsuite/ld-riscv-elf/call-relax.d b/ld/testsuite/ld-riscv-elf/call-relax.d index 46d9c84f35f..597ff675353 100644 --- a/ld/testsuite/ld-riscv-elf/call-relax.d +++ b/ld/testsuite/ld-riscv-elf/call-relax.d @@ -3,7 +3,7 @@ #source: call-relax-1.s #source: call-relax-2.s #source: call-relax-3.s -#as: -march=rv32ic +#as: -march=rv32ic -mno-arch-attr #ld: -melf32lriscv #objdump: -d #pass -- 2.30.2