diff options
| author | Alex Rønne Petersen <alex@alexrp.com> | 2024-12-12 17:56:04 +0100 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2025-02-21 20:53:41 -0500 |
| commit | b6b81f697b38ef915a5dbf1311baba164822e917 (patch) | |
| tree | e43a8a1710aaca8f276034bfa4fc048e94113aca /src/thread/mips64 | |
| parent | 5e03c03fcde3534b37a0b995a438cd176d6882d3 (diff) | |
| download | musl-b6b81f697b38ef915a5dbf1311baba164822e917.tar.gz | |
clone: clear the frame pointer in the child process on relevant ports
This just mirrors what is done in the start code for the affected
ports, as well as what is already done for the three x86 ports.
Clearing the frame pointer helps protect FP-based unwinders from
wrongly attempting to traverse into the parent thread's call frame
stack.
Diffstat (limited to 'src/thread/mips64')
| -rw-r--r-- | src/thread/mips64/clone.s | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/thread/mips64/clone.s b/src/thread/mips64/clone.s index 2d86899a..8de3db6c 100644 --- a/src/thread/mips64/clone.s +++ b/src/thread/mips64/clone.s @@ -25,7 +25,8 @@ __clone: nop jr $ra nop -1: ld $25, 0($sp) # function pointer +1: move $fp, $0 + ld $25, 0($sp) # function pointer ld $4, 8($sp) # argument pointer jalr $25 # call the user's function nop |