From: Tom Tromey <tromey@adacore.com>
To: gdb-patches@sourceware.org
Cc: Lancelot Six <lancelot.six@amd.com>
Subject: [PATCH v2 6/7] Convert solib-rocm to new type-safe gdb_bfd_openr_iovec
Date: Mon, 18 Sep 2023 08:52:51 -0600 [thread overview]
Message-ID: <20230918-gdb-bfd-vec-v2-6-162c0e9a2bc9@adacore.com> (raw)
In-Reply-To: <20230918-gdb-bfd-vec-v2-0-162c0e9a2bc9@adacore.com>
This converts the solib-rocm BFD iovec implementations to the new
type-safe gdb_bfd_openr_iovec. They were already essentially using
this approach, just without the type-safe wrapper.
Thanks to Lancelot Six for testing and fixing this patch.
Co-Authored-By: Lancelot Six <lancelot.six@amd.com>
---
gdb/solib-rocm.c | 66 ++++++++++++++++----------------------------------------
1 file changed, 18 insertions(+), 48 deletions(-)
diff --git a/gdb/solib-rocm.c b/gdb/solib-rocm.c
index 56c210e9fa5..6b84f09e88b 100644
--- a/gdb/solib-rocm.c
+++ b/gdb/solib-rocm.c
@@ -268,24 +268,13 @@ namespace {
/* Interface to interact with a ROCm code object stream. */
-struct rocm_code_object_stream
+struct rocm_code_object_stream : public gdb_bfd_iovec_base
{
DISABLE_COPY_AND_ASSIGN (rocm_code_object_stream);
- /* Copy SIZE bytes from the underlying objfile storage starting at OFFSET
- into the user provided buffer BUF.
+ int stat (bfd *abfd, struct stat *sb) final override;
- Return the number of bytes actually copied (might be inferior to SIZE if
- the end of the stream is reached). */
- virtual file_ptr read (void *buf, file_ptr size, file_ptr offset) = 0;
-
- /* Retrieve file information in SB.
-
- Return 0 on success. On failure, set the appropriate bfd error number
- (using bfd_set_error) and return -1. */
- int stat (struct stat *sb);
-
- virtual ~rocm_code_object_stream () = default;
+ ~rocm_code_object_stream () override = default;
protected:
rocm_code_object_stream () = default;
@@ -298,7 +287,7 @@ struct rocm_code_object_stream
};
int
-rocm_code_object_stream::stat (struct stat *sb)
+rocm_code_object_stream::stat (bfd *, struct stat *sb)
{
const LONGEST size = this->size ();
if (size == -1)
@@ -319,7 +308,8 @@ struct rocm_code_object_stream_file final : rocm_code_object_stream
rocm_code_object_stream_file (inferior *inf, int fd, ULONGEST offset,
ULONGEST size);
- file_ptr read (void *buf, file_ptr size, file_ptr offset) override;
+ file_ptr read (bfd *abfd, void *buf, file_ptr size,
+ file_ptr offset) override;
LONGEST size () override;
@@ -348,7 +338,7 @@ rocm_code_object_stream_file::rocm_code_object_stream_file
}
file_ptr
-rocm_code_object_stream_file::read (void *buf, file_ptr size,
+rocm_code_object_stream_file::read (bfd *, void *buf, file_ptr size,
file_ptr offset)
{
fileio_error target_errno;
@@ -423,7 +413,8 @@ struct rocm_code_object_stream_memory final : public rocm_code_object_stream
rocm_code_object_stream_memory (gdb::byte_vector buffer);
- file_ptr read (void *buf, file_ptr size, file_ptr offset) override;
+ file_ptr read (bfd *abfd, void *buf, file_ptr size,
+ file_ptr offset) override;
protected:
@@ -445,7 +436,7 @@ rocm_code_object_stream_memory::rocm_code_object_stream_memory
}
file_ptr
-rocm_code_object_stream_memory::read (void *buf, file_ptr size,
+rocm_code_object_stream_memory::read (bfd *, void *buf, file_ptr size,
file_ptr offset)
{
if (size > m_objfile_image.size () - offset)
@@ -457,8 +448,8 @@ rocm_code_object_stream_memory::read (void *buf, file_ptr size,
} /* anonymous namespace */
-static void *
-rocm_bfd_iovec_open (bfd *abfd, void *inferior_void)
+static gdb_bfd_iovec_base *
+rocm_bfd_iovec_open (bfd *abfd, inferior *inferior)
{
gdb::string_view uri (bfd_get_filename (abfd));
gdb::string_view protocol_delim = "://";
@@ -522,7 +513,6 @@ rocm_bfd_iovec_open (bfd *abfd, void *inferior_void)
{
ULONGEST offset = 0;
ULONGEST size = 0;
- inferior *inferior = static_cast<struct inferior *> (inferior_void);
auto try_strtoulst = [] (gdb::string_view v)
{
@@ -607,28 +597,6 @@ rocm_bfd_iovec_open (bfd *abfd, void *inferior_void)
}
}
-static int
-rocm_bfd_iovec_close (bfd *nbfd, void *data)
-{
- delete static_cast<rocm_code_object_stream *> (data);
-
- return 0;
-}
-
-static file_ptr
-rocm_bfd_iovec_pread (bfd *abfd, void *data, void *buf, file_ptr size,
- file_ptr offset)
-{
- return static_cast<rocm_code_object_stream *> (data)->read (buf, size,
- offset);
-}
-
-static int
-rocm_bfd_iovec_stat (bfd *abfd, void *data, struct stat *sb)
-{
- return static_cast<rocm_code_object_stream *> (data)->stat (sb);
-}
-
static gdb_bfd_ref_ptr
rocm_solib_bfd_open (const char *pathname)
{
@@ -636,10 +604,12 @@ rocm_solib_bfd_open (const char *pathname)
if (strstr (pathname, "://") == nullptr)
return svr4_so_ops.bfd_open (pathname);
- gdb_bfd_ref_ptr abfd
- = gdb_bfd_openr_iovec (pathname, "elf64-amdgcn", rocm_bfd_iovec_open,
- current_inferior (), rocm_bfd_iovec_pread,
- rocm_bfd_iovec_close, rocm_bfd_iovec_stat);
+ auto open = [] (bfd *nbfd) -> gdb_bfd_iovec_base *
+ {
+ return rocm_bfd_iovec_open (nbfd, current_inferior ());
+ };
+
+ gdb_bfd_ref_ptr abfd = gdb_bfd_openr_iovec (pathname, "elf64-amdgcn", open);
if (abfd == nullptr)
error (_("Could not open `%s' as an executable file: %s"), pathname,
--
2.40.1
next prev parent reply other threads:[~2023-09-18 14:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-18 14:52 [PATCH v2 0/7] Rewrite gdb_bfd_openr_iovec to be type-safe Tom Tromey
2023-09-18 14:52 ` [PATCH v2 1/7] Introduce type-safe variant of gdb_bfd_openr_iovec Tom Tromey
2023-09-18 14:52 ` [PATCH v2 2/7] Small constructor change to target_buffer Tom Tromey
2023-09-18 14:52 ` [PATCH v2 3/7] Convert mem_bfd_iovec to new type-safe gdb_bfd_openr_iovec Tom Tromey
2023-09-18 14:52 ` [PATCH v2 4/7] Convert target fileio " Tom Tromey
2023-09-18 14:52 ` [PATCH v2 5/7] Convert minidebug " Tom Tromey
2023-09-18 14:52 ` Tom Tromey [this message]
2023-09-28 9:57 ` [PATCH v2 6/7] Convert solib-rocm " Lancelot SIX
2023-09-18 14:52 ` [PATCH v2 7/7] Remove old gdb_bfd_openr_iovec Tom Tromey
2023-09-28 10:02 ` [PATCH v2 0/7] Rewrite gdb_bfd_openr_iovec to be type-safe Lancelot SIX
2023-09-28 16:45 ` Tom Tromey
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