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| author | deischen <deischen@FreeBSD.org> | 2001-12-22 06:06:17 +0000 |
|---|---|---|
| committer | deischen <deischen@FreeBSD.org> | 2001-12-22 06:06:17 +0000 |
| commit | 6e34232ab02018e46c73b3dae6fdfe250975a52b (patch) | |
| tree | 3dad715821adf1d11a250d0b0fbccd55646fcc05 /lib | |
| parent | d81575874181dc6c7941b7bb6d8ad2ed6c24c418 (diff) | |
| download | FreeBSD-src-6e34232ab02018e46c73b3dae6fdfe250975a52b.zip FreeBSD-src-6e34232ab02018e46c73b3dae6fdfe250975a52b.tar.gz | |
Save and restore t12 in the jmp_buf. t12 is used during function
calls.
This change allows libc_r to create thread contexts with a different
stack and return address.
With much detective work by: Bernd Walter <ticso@cicely.de>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/alpha/gen/_setjmp.S | 2 | ||||
| -rw-r--r-- | lib/libc/alpha/gen/setjmp.S | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/lib/libc/alpha/gen/_setjmp.S b/lib/libc/alpha/gen/_setjmp.S index f3aa6ff..22cba2a 100644 --- a/lib/libc/alpha/gen/_setjmp.S +++ b/lib/libc/alpha/gen/_setjmp.S @@ -55,6 +55,7 @@ LEAF(_setjmp, 1) stq s5, ((14 + 4) * 8)(a0) stq s6, ((15 + 4) * 8)(a0) stq ra, ((26 + 4) * 8)(a0) + stq t12,((27 + 4) * 8)(a0) stq sp, ((30 + 4) * 8)(a0) ldiq t0, 0xacedbadd /* sigcontext magic number */ stq t0, ((31 + 4) * 8)(a0) /* magic in sc_regs[31] */ @@ -104,6 +105,7 @@ LEAF(___longjmp, 2) ldq s5, ((14 + 4) * 8)(a0) ldq s6, ((15 + 4) * 8)(a0) /* ldq ra, ((26 + 4) * 8)(a0) set above */ + ldq t12,((27 + 4) * 8)(a0) ldq sp, ((30 + 4) * 8)(a0) ldt fs0, ((2 + 37) * 8)(a0) /* saved bits of sc_fpregs */ ldt fs1, ((3 + 37) * 8)(a0) diff --git a/lib/libc/alpha/gen/setjmp.S b/lib/libc/alpha/gen/setjmp.S index 297e601..20e1135 100644 --- a/lib/libc/alpha/gen/setjmp.S +++ b/lib/libc/alpha/gen/setjmp.S @@ -55,6 +55,7 @@ LEAF(setjmp, 1) stq s5, ((14 + 4) * 8)(a0) stq s6, ((15 + 4) * 8)(a0) stq ra, ((26 + 4) * 8)(a0) + stq t12,((27 + 4) * 8)(a0) stq sp, ((30 + 4) * 8)(a0) /* |
