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| author | Alex Rønne Petersen <alex@alexrp.com> | 2024-07-25 23:55:42 +0200 |
|---|---|---|
| committer | Alex Rønne Petersen <alex@alexrp.com> | 2024-07-30 18:02:36 +0200 |
| commit | 52519f79e0b3659e43eb8e765a9e2b584fc8f0f9 (patch) | |
| tree | ffde2f169c18536b401df75677651afec61eaec6 /lib/std | |
| parent | 2386bfe854826e0726b7002c04cd9fc4c08d68f3 (diff) | |
| download | zig-52519f79e0b3659e43eb8e765a9e2b584fc8f0f9.tar.gz zig-52519f79e0b3659e43eb8e765a9e2b584fc8f0f9.zip | |
std.os.linux.start_pie: Apply MIPS local GOT relocations.
Diffstat (limited to 'lib/std')
| -rw-r--r-- | lib/std/os/linux/start_pie.zig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/std/os/linux/start_pie.zig b/lib/std/os/linux/start_pie.zig index b5cc06f429..ab4e2f4fe9 100644 --- a/lib/std/os/linux/start_pie.zig +++ b/lib/std/os/linux/start_pie.zig @@ -222,6 +222,24 @@ pub fn relocate(phdrs: []elf.Phdr) void { } } + // Deal with the GOT relocations that MIPS uses first. + if (builtin.cpu.arch.isMIPS()) { + const count: elf.Addr = blk: { + // This is an architecture-specific tag, so not part of `sorted_dynv`. + var i: usize = 0; + while (dynv[i].d_tag != elf.DT_NULL) : (i += 1) { + if (dynv[i].d_tag == elf.DT_MIPS_LOCAL_GOTNO) break :blk dynv[i].d_val; + } + + break :blk 0; + }; + + const got: [*]usize = @ptrFromInt(base_addr + sorted_dynv[elf.DT_PLTGOT]); + + for (0..count) |i| { + got[i] += base_addr; + } + } // Apply normal relocations. |