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| author | Hau Hsu <hau.hsu@sifive.com> | 2024-02-23 14:17:28 +0800 |
|---|---|---|
| committer | Nelson Chu <nelson@rivosinc.com> | 2024-03-13 13:47:34 +0800 |
| commit | 90840a86569c32f63feb549f87507a7b6c84e070 (patch) | |
| tree | 1de7eafba1ddddcfae8e1a68d3cd5a016d69d55f /gas | |
| parent | ef11c1eaffeda578985b2b28f1e64db67bf3b224 (diff) | |
| download | binutils-90840a86569c32f63feb549f87507a7b6c84e070.zip binutils-90840a86569c32f63feb549f87507a7b6c84e070.tar.gz binutils-90840a86569c32f63feb549f87507a7b6c84e070.tar.bz2 | |
RISC-V: Add -march=help for gas
Use -march=help for gas to print all supported extensions and versions.
Here is part of the output of `as -march=help`:
All available -march extensions for RISC-V:
e 1.9
i 2.1, 2.0
m 2.0
a 2.1, 2.0
f 2.2, 2.0
d 2.2, 2.0
q 2.2, 2.0
c 2.0
v 1.0
h 1.0
zicbom 1.0
zicbop 1.0
...
This patch assumes that the supported extensions with the same versions
are listed together. For example:
static struct riscv_supported_ext riscv_supported_std_ext[] =
{
...
{"i", ISA_SPEC_CLASS_20191213, 2, 1, 0 },
{"i", ISA_SPEC_CLASS_20190608, 2, 1, 0 },
{"i", ISA_SPEC_CLASS_2P2, 2, 0, 0 },
...
};
For the "i" extension, 2.1.0 with different spec class are listed together.
This patch records the previous printed extension and version. If the
current extension and version are the same as the previous one, skip
printing.
bfd/
* elfxx-riscv.c (riscv_print_extensions): New function. Print
available extensions and versions.
* elfxx-riscv.h (riscv_print_extensions): New declaration.
gas/
* gas/config/tc-riscv.c (md_parse_option): Parse 'help' keyword in
-march option to print available extensions and versions.
* testsuite/gas/riscv/march-help.l: New testcase for -march=help.
* testsuite/gas/riscv/riscv.exp: Updated.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/config/tc-riscv.c | 6 | ||||
| -rw-r--r-- | gas/testsuite/gas/riscv/march-help.l | 119 | ||||
| -rw-r--r-- | gas/testsuite/gas/riscv/riscv.exp | 1 |
3 files changed, 126 insertions, 0 deletions
diff --git a/gas/config/tc-riscv.c b/gas/config/tc-riscv.c index 0966b7b..2a2948f 100644 --- a/gas/config/tc-riscv.c +++ b/gas/config/tc-riscv.c @@ -4038,6 +4038,12 @@ md_parse_option (int c, const char *arg) switch (c) { case OPTION_MARCH: + /* List all avaiable extensions. */ + if (strcmp (arg, "help") == 0) + { + riscv_print_extensions (); + exit (EXIT_SUCCESS); + } default_arch_with_ext = arg; break; diff --git a/gas/testsuite/gas/riscv/march-help.l b/gas/testsuite/gas/riscv/march-help.l new file mode 100644 index 0000000..7f92194 --- /dev/null +++ b/gas/testsuite/gas/riscv/march-help.l @@ -0,0 +1,119 @@ +All available -march extensions for RISC-V: + e 1.9 + i 2.1, 2.0 + m 2.0 + a 2.1, 2.0 + f 2.2, 2.0 + d 2.2, 2.0 + q 2.2, 2.0 + c 2.0 + v 1.0 + h 1.0 + zicbom 1.0 + zicbop 1.0 + zicboz 1.0 + zicond 1.0 + zicntr 2.0 + zicsr 2.0 + zifencei 2.0 + zihintntl 1.0 + zihintpause 2.0 + zihpm 2.0 + zmmul 1.0 + zabha 1.0 + zawrs 1.0 + zfa 1.0 + zfh 1.0 + zfhmin 1.0 + zfinx 1.0 + zdinx 1.0 + zqinx 1.0 + zhinx 1.0 + zhinxmin 1.0 + zbb 1.0 + zba 1.0 + zbc 1.0 + zbs 1.0 + zbkb 1.0 + zbkc 1.0 + zbkx 1.0 + zk 1.0 + zkn 1.0 + zknd 1.0 + zkne 1.0 + zknh 1.0 + zkr 1.0 + zks 1.0 + zksed 1.0 + zksh 1.0 + zkt 1.0 + zve32x 1.0 + zve32f 1.0 + zve64x 1.0 + zve64f 1.0 + zve64d 1.0 + zvbb 1.0 + zvbc 1.0 + zvfh 1.0 + zvfhmin 1.0 + zvkb 1.0 + zvkg 1.0 + zvkn 1.0 + zvkng 1.0 + zvknc 1.0 + zvkned 1.0 + zvknha 1.0 + zvknhb 1.0 + zvksed 1.0 + zvksh 1.0 + zvks 1.0 + zvksg 1.0 + zvksc 1.0 + zvkt 1.0 + zvl32b 1.0 + zvl64b 1.0 + zvl128b 1.0 + zvl256b 1.0 + zvl512b 1.0 + zvl1024b 1.0 + zvl2048b 1.0 + zvl4096b 1.0 + zvl8192b 1.0 + zvl16384b 1.0 + zvl32768b 1.0 + zvl65536b 1.0 + ztso 1.0 + zca 1.0 + zcb 1.0 + zcf 1.0 + zcd 1.0 + smaia 1.0 + smcntrpmf 1.0 + smepmp 1.0 + smstateen 1.0 + ssaia 1.0 + sscofpmf 1.0 + ssstateen 1.0 + sstc 1.0 + svadu 1.0 + svinval 1.0 + svnapot 1.0 + svpbmt 1.0 + xcvmac 1.0 + xcvalu 1.0 + xtheadba 1.0 + xtheadbb 1.0 + xtheadbs 1.0 + xtheadcmo 1.0 + xtheadcondmov 1.0 + xtheadfmemidx 1.0 + xtheadfmv 1.0 + xtheadint 1.0 + xtheadmac 1.0 + xtheadmemidx 1.0 + xtheadmempair 1.0 + xtheadsync 1.0 + xtheadvector 1.0 + xtheadzvamo 1.0 + xventanacondops 1.0 + xsfvcp 1.0 diff --git a/gas/testsuite/gas/riscv/riscv.exp b/gas/testsuite/gas/riscv/riscv.exp index 2c7e950..069e9a6 100644 --- a/gas/testsuite/gas/riscv/riscv.exp +++ b/gas/testsuite/gas/riscv/riscv.exp @@ -21,4 +21,5 @@ if [istarget riscv*-*-*] { run_dump_tests [lsort [glob -nocomplain $srcdir/$subdir/*.d]] run_list_test "align-1" + run_list_test "march-help" "-march=help" } |