Rockbox open source high quality audio player as a Music Player Daemon
mpris
rockbox
mpd
libadwaita
audio
rust
zig
deno
elf_loader: add elf_loadmem() to load file from memory
Change-Id: Ib68b0e8b610d45713a2d5480da015cc4295f2676
+38
+26
firmware/elf_loader.c
+26
firmware/elf_loader.c
···
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close(fd);
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return err;
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}
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+
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+
int elf_loadmem(const void *elf_buffer,
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+
size_t elf_size,
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+
const struct elf_load_context *ctx,
190
+
void **entrypoint)
191
+
{
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+
struct elf_loadmem_state state = {
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+
.buffer = elf_buffer,
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+
.size = elf_size,
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+
};
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+
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+
return elf_load(elf_read_mem_callback, (intptr_t)&state, ctx, entrypoint);
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+
}
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+
200
+
int elf_read_mem_callback(intptr_t loadmem_state, off_t pos, void *buf, size_t size)
201
+
{
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+
struct elf_loadmem_state *state = (void *)loadmem_state;
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+
204
+
if (pos < 0 || (size_t)pos >= state->size)
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+
return -1;
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+
if (state->size - (size_t)pos < size)
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+
return -1;
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+
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+
memcpy(buf, state->buffer + pos, size);
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+
return 0;
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+
}
+12
firmware/include/elf_loader.h
+12
firmware/include/elf_loader.h
···
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100
const struct elf_load_context *ctx,
101
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void **entrypoint);
102
102
103
+
struct elf_loadmem_state
104
+
{
105
+
const void *buffer;
106
+
size_t size;
107
+
};
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+
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+
int elf_loadmem(const void *elf_buffer,
110
+
size_t elf_size,
111
+
const struct elf_load_context *ctx,
112
+
void **entrypoint);
113
+
int elf_read_mem_callback(intptr_t loadmem_state, off_t pos, void *buf, size_t size);
114
+
103
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#endif /* __ELF_LOADER_H__ */