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Elf: fix reference from eh_frame_hdr to eh_frame

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This commit is contained in:
Jacob Young 2024-08-30 09:01:30 -04:00
parent 7305184203
commit a1a9d7440c
1 changed files with 6 additions and 1 deletions
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7
src/link/Elf/eh_frame.zig
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@ -490,11 +490,16 @@ pub fn writeEhFrameHdr(elf_file: *Elf, writer: anytype) !void {
const eh_frame_shdr = shdrs[elf_file.eh_frame_section_index.?];
const eh_frame_hdr_shdr = shdrs[elf_file.eh_frame_hdr_section_index.?];
const num_fdes = @as(u32, @intCast(@divExact(eh_frame_hdr_shdr.sh_size - eh_frame_hdr_header_size, 8)));
const existing_size = existing_size: {
const zo = elf_file.zigObjectPtr() orelse break :existing_size 0;
const sym = zo.symbol(zo.eh_frame_index orelse break :existing_size 0);
break :existing_size sym.atom(elf_file).?.size;
};
try writer.writeInt(
u32,
@as(u32, @bitCast(@as(
i32,
@truncate(@as(i64, @intCast(eh_frame_shdr.sh_addr)) - @as(i64, @intCast(eh_frame_hdr_shdr.sh_addr)) - 4),
@truncate(@as(i64, @intCast(eh_frame_shdr.sh_addr + existing_size)) - @as(i64, @intCast(eh_frame_hdr_shdr.sh_addr)) - 4),
))),
.little,
);