* [PATCH] RISC-V: Make riscv_is_mapping_symbol stricter
@ 2023-12-01 2:47 Patrick O'Neill
2023-12-01 3:40 ` Nelson Chu
0 siblings, 1 reply; 2+ messages in thread
From: Patrick O'Neill @ 2023-12-01 2:47 UTC (permalink / raw)
To: binutils; +Cc: kito.cheng, nelson, Patrick O'Neill
riscv_is_mapping_symbol currently accepts any symbol that starts with $x
or $d. This patch makes the check more strict, requiring exactly $x, $d,
or $xrv. It also makes use of this stricter mapping in
riscv_is_valid_mapping_symbol.
ChangeLog:
* bfd/cpu-riscv.c (riscv_elf_is_mapping_symbols): Match only
strings that are exactly $x, $d, or $xrv.
* opcodes/riscv-dis.c (riscv_is_valid_mapping_symbol): Use
riscv_elf_is_mapping_symbols.
Signed-off-by: Patrick O'Neill <patrick@rivosinc.com>
---
Tested using rv64gcv make report-linux and make report-binutils-linux.
---
bfd/cpu-riscv.c | 5 +++--
opcodes/riscv-dis.c | 4 +---
2 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/bfd/cpu-riscv.c b/bfd/cpu-riscv.c
index a478797da69..79a82a599e2 100644
--- a/bfd/cpu-riscv.c
+++ b/bfd/cpu-riscv.c
@@ -147,6 +147,7 @@ riscv_get_priv_spec_class_from_numbers (unsigned int major,
bool
riscv_elf_is_mapping_symbols (const char *name)
{
- return (!strncmp (name, "$d", 2)
- || !strncmp (name, "$x", 2));
+ return (!strcmp (name, "$x")
+ || !strcmp (name, "$d")
+ || !strncmp (name, "$xrv", 4));
}
diff --git a/opcodes/riscv-dis.c b/opcodes/riscv-dis.c
index f7f4c0750ed..829070d809d 100644
--- a/opcodes/riscv-dis.c
+++ b/opcodes/riscv-dis.c
@@ -930,9 +930,7 @@ riscv_is_valid_mapping_symbol (int n,
return false;
name = bfd_asymbol_name(info->symtab[n]);
- return (strcmp (name, "$x") == 0
- || strcmp (name, "$d") == 0
- || strncmp (name, "$xrv", 4) == 0);
+ return riscv_elf_is_mapping_symbols (name);
}
/* Check the sorted symbol table (sorted by the symbol value), find the
--
2.34.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] RISC-V: Make riscv_is_mapping_symbol stricter
2023-12-01 2:47 [PATCH] RISC-V: Make riscv_is_mapping_symbol stricter Patrick O'Neill
@ 2023-12-01 3:40 ` Nelson Chu
0 siblings, 0 replies; 2+ messages in thread
From: Nelson Chu @ 2023-12-01 3:40 UTC (permalink / raw)
To: Patrick O'Neill; +Cc: binutils, kito.cheng
[-- Attachment #1: Type: text/plain, Size: 2105 bytes --]
Since we should call riscv_elf_is_mapping_symbols uniformly to check if the
symbol is a mapping symbol or not, this patch looks good to me. Committed.
Thanks
Nelson
On Fri, Dec 1, 2023 at 10:47 AM Patrick O'Neill <patrick@rivosinc.com>
wrote:
> riscv_is_mapping_symbol currently accepts any symbol that starts with $x
> or $d. This patch makes the check more strict, requiring exactly $x, $d,
> or $xrv. It also makes use of this stricter mapping in
> riscv_is_valid_mapping_symbol.
>
> ChangeLog:
>
> * bfd/cpu-riscv.c (riscv_elf_is_mapping_symbols): Match only
> strings that are exactly $x, $d, or $xrv.
> * opcodes/riscv-dis.c (riscv_is_valid_mapping_symbol): Use
> riscv_elf_is_mapping_symbols.
>
> Signed-off-by: Patrick O'Neill <patrick@rivosinc.com>
> ---
> Tested using rv64gcv make report-linux and make report-binutils-linux.
> ---
> bfd/cpu-riscv.c | 5 +++--
> opcodes/riscv-dis.c | 4 +---
> 2 files changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/bfd/cpu-riscv.c b/bfd/cpu-riscv.c
> index a478797da69..79a82a599e2 100644
> --- a/bfd/cpu-riscv.c
> +++ b/bfd/cpu-riscv.c
> @@ -147,6 +147,7 @@ riscv_get_priv_spec_class_from_numbers (unsigned int
> major,
> bool
> riscv_elf_is_mapping_symbols (const char *name)
> {
> - return (!strncmp (name, "$d", 2)
> - || !strncmp (name, "$x", 2));
> + return (!strcmp (name, "$x")
> + || !strcmp (name, "$d")
> + || !strncmp (name, "$xrv", 4));
> }
> diff --git a/opcodes/riscv-dis.c b/opcodes/riscv-dis.c
> index f7f4c0750ed..829070d809d 100644
> --- a/opcodes/riscv-dis.c
> +++ b/opcodes/riscv-dis.c
> @@ -930,9 +930,7 @@ riscv_is_valid_mapping_symbol (int n,
> return false;
>
> name = bfd_asymbol_name(info->symtab[n]);
> - return (strcmp (name, "$x") == 0
> - || strcmp (name, "$d") == 0
> - || strncmp (name, "$xrv", 4) == 0);
> + return riscv_elf_is_mapping_symbols (name);
> }
>
> /* Check the sorted symbol table (sorted by the symbol value), find the
> --
> 2.34.1
>
>
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