From f8028a97081f2cd4e24862507c04b05cf4687dc9 Mon Sep 17 00:00:00 2001 From: Andreas Jaeger Date: Mon, 27 Nov 2000 14:41:40 +0000 Subject: Update. 2000-11-25 Maciej W. Rozycki * sysdeps/mips/__longjmp.c (__longjmp): Restore SP and FP last and in a single asm as they may be used to access other stored registers. * sysdeps/mips/mips64/__longjmp.c (__longjmp): Likewise. --- sysdeps/mips/__longjmp.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'sysdeps/mips/__longjmp.c') diff --git a/sysdeps/mips/__longjmp.c b/sysdeps/mips/__longjmp.c index a1920ca257..66810a51ed 100644 --- a/sysdeps/mips/__longjmp.c +++ b/sysdeps/mips/__longjmp.c @@ -45,16 +45,10 @@ __longjmp (env, val_arg) asm volatile ("l.d $f28, %0" : : "m" (env[0].__fpregs[4])); asm volatile ("l.d $f30, %0" : : "m" (env[0].__fpregs[5])); - /* Restore the stack pointer. */ - asm volatile ("lw $29, %0" : : "m" (env[0].__sp)); - /* Get and reconstruct the floating point csr. */ asm volatile ("lw $2, %0" : : "m" (env[0].__fpc_csr)); asm volatile ("ctc1 $2, $31"); - /* Get the FP. */ - asm volatile ("lw $30, %0" : : "m" (env[0].__fp)); - /* Get the GP. */ asm volatile ("lw $gp, %0" : : "m" (env[0].__gp)); @@ -71,7 +65,13 @@ __longjmp (env, val_arg) /* Get the PC. */ asm volatile ("lw $25, %0" : : "m" (env[0].__pc)); - /* Give setjmp 1 if given a 0, or what they gave us if non-zero. */ + /* Restore the stack pointer and the FP. They have to be restored + last and in a single asm as gcc, depending on options used, may + use either of them to access env. */ + asm volatile ("lw $29, %0\n\t" + "lw $30, %1\n\t" : : "m" (env[0].__sp), "m" (env[0].__fp)); + +/* Give setjmp 1 if given a 0, or what they gave us if non-zero. */ if (val == 0) asm volatile ("li $2, 1"); else -- cgit v1.2.3