glibc, newlib: don't save/restore tp on get/setcontext

Thread-local storage shouldn't be affected by these calls.
11 years ago · c4923f58a8
6 changed files with 0 additions and 8 deletions
--- a/glibc/sysdeps/riscv/__longjmp.S
+++ b/glibc/sysdeps/riscv/__longjmp.S
@ -35,7 +35,6 @@ ENTRY (__longjmp)
 	REG_L s10,11*SZREG(a0)
 	REG_L s11,12*SZREG(a0)
 	REG_L sp, 13*SZREG(a0)
-	REG_L tp, 14*SZREG(a0)

 #ifdef __riscv_hard_float
 	REG_L a3, 15*SZREG(a0)
--- a/glibc/sysdeps/riscv/setjmp.S
+++ b/glibc/sysdeps/riscv/setjmp.S
@ -43,7 +43,6 @@ ENTRY (__sigsetjmp)
 	REG_S s10,11*SZREG(a0)
 	REG_S s11,12*SZREG(a0)
 	REG_S sp, 13*SZREG(a0)
-	REG_S tp, 14*SZREG(a0)

 #ifdef __riscv_hard_float
 	frsr a3
--- a/glibc/sysdeps/unix/sysv/linux/riscv/getcontext.S
+++ b/glibc/sysdeps/unix/sysv/linux/riscv/getcontext.S
@ -30,7 +30,6 @@ LEAF (__getcontext)
 	REG_S	ra, MCONTEXT_PC(a0)
 	REG_S	ra, ( 1 * SZREG + MCONTEXT_GREGS)(a0)
 	REG_S	sp, ( 2 * SZREG + MCONTEXT_GREGS)(a0)
-	REG_S	tp, ( 4 * SZREG + MCONTEXT_GREGS)(a0)
 	REG_S	s0, ( 8 * SZREG + MCONTEXT_GREGS)(a0)
 	REG_S	s1, ( 9 * SZREG + MCONTEXT_GREGS)(a0)
 	REG_S	s2, (18 * SZREG + MCONTEXT_GREGS)(a0)
--- a/glibc/sysdeps/unix/sysv/linux/riscv/setcontext.S
+++ b/glibc/sysdeps/unix/sysv/linux/riscv/setcontext.S
@ -65,7 +65,6 @@ LEAF (__setcontext)
 	REG_L	t1, MCONTEXT_PC(t0)
 	REG_L	ra, ( 1 * SZREG + MCONTEXT_GREGS)(t0)
 	REG_L	sp, ( 2 * SZREG + MCONTEXT_GREGS)(t0)
-	REG_L	tp, ( 4 * SZREG + MCONTEXT_GREGS)(t0)
 	REG_L	s0, ( 8 * SZREG + MCONTEXT_GREGS)(t0)
 	REG_L	s1, ( 9 * SZREG + MCONTEXT_GREGS)(t0)
 	REG_L	a0, (10 * SZREG + MCONTEXT_GREGS)(t0)
--- a/glibc/sysdeps/unix/sysv/linux/riscv/swapcontext.S
+++ b/glibc/sysdeps/unix/sysv/linux/riscv/swapcontext.S
@ -31,7 +31,6 @@ LEAF (__swapcontext)
 	REG_S	ra, MCONTEXT_PC(a0)
 	REG_S	ra, ( 1 * SZREG + MCONTEXT_GREGS)(a0)
 	REG_S	sp, ( 2 * SZREG + MCONTEXT_GREGS)(a0)
-	REG_S	tp, ( 4 * SZREG + MCONTEXT_GREGS)(a0)
 	REG_S	s0, ( 8 * SZREG + MCONTEXT_GREGS)(a0)
 	REG_S	s1, ( 9 * SZREG + MCONTEXT_GREGS)(a0)
 	REG_S	s2, (18 * SZREG + MCONTEXT_GREGS)(a0)
@ -99,7 +98,6 @@ LEAF (__swapcontext)
 	REG_L	t1, MCONTEXT_PC(t0)
 	REG_L	ra, ( 1 * SZREG + MCONTEXT_GREGS)(t0)
 	REG_L	sp, ( 2 * SZREG + MCONTEXT_GREGS)(t0)
-	REG_L	tp, ( 4 * SZREG + MCONTEXT_GREGS)(t0)
 	REG_L	s0, ( 8 * SZREG + MCONTEXT_GREGS)(t0)
 	REG_L	s1, ( 9 * SZREG + MCONTEXT_GREGS)(t0)
 	REG_L	a0, (10 * SZREG + MCONTEXT_GREGS)(t0)
--- a/newlib/newlib/libc/machine/riscv/setjmp.S
+++ b/newlib/newlib/libc/machine/riscv/setjmp.S
@ -25,7 +25,6 @@ setjmp:
 	REG_S s10,11*SZREG(a0)
 	REG_S s11,12*SZREG(a0)
 	REG_S sp, 13*SZREG(a0)
-	REG_S tp, 14*SZREG(a0)

 #ifdef __riscv_hard_float
 	frsr a3
@ -66,7 +65,6 @@ longjmp:
 	REG_L s10,11*SZREG(a0)
 	REG_L s11,12*SZREG(a0)
 	REG_L sp, 13*SZREG(a0)
-	REG_L tp, 14*SZREG(a0)

 #ifdef __riscv_hard_float
 	REG_L a3, 15*SZREG(a0)