diff options
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/powerpc/powerpc32/__longjmp-common.S | 15 | ||||
-rw-r--r-- | sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S | 15 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc32/____longjmp_chk.S (renamed from sysdeps/powerpc/powerpc32/____longjmp_chk.S) | 31 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/____longjmp_chk.S (renamed from sysdeps/powerpc/powerpc64/____longjmp_chk.S) | 32 |
4 files changed, 77 insertions, 16 deletions
diff --git a/sysdeps/powerpc/powerpc32/__longjmp-common.S b/sysdeps/powerpc/powerpc32/__longjmp-common.S index 7b1c017837..955161ef2b 100644 --- a/sysdeps/powerpc/powerpc32/__longjmp-common.S +++ b/sysdeps/powerpc/powerpc32/__longjmp-common.S @@ -33,6 +33,13 @@ ENTRY (BP_SYM (__longjmp)) #if defined PTR_DEMANGLE || defined CHECK_SP lwz r24,(JB_GPR1*4)(r3) +# ifdef CHECK_SP +# ifdef PTR_DEMANGLE + PTR_DEMANGLE3 (r24, r24, r25) +# endif + CHECK_SP (r24) + mr r1,r24 +# endif #else lwz r1,(JB_GPR1*4)(r3) #endif @@ -45,17 +52,11 @@ ENTRY (BP_SYM (__longjmp)) lwz r19,((JB_GPRS+5)*4)(r3) lwz r20,((JB_GPRS+6)*4)(r3) #ifdef PTR_DEMANGLE -# ifdef CHECK_SP - PTR_DEMANGLE3 (r24, r24, r25) -# else +# ifndef CHECK_SP PTR_DEMANGLE3 (r1, r24, r25) # endif PTR_DEMANGLE2 (r0, r25) #endif -#ifdef CHECK_SP - CHECK_SP (r24) - mr r1,r24 -#endif mtlr r0 lwz r21,((JB_GPRS+7)*4)(r3) lwz r22,((JB_GPRS+8)*4)(r3) diff --git a/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S b/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S index f105815b9c..04ed6da68b 100644 --- a/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S +++ b/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S @@ -116,6 +116,13 @@ L(no_vmx): #endif #if defined PTR_DEMANGLE || defined CHECK_SP lwz r24,(JB_GPR1*4)(r3) +# ifdef CHECK_SP +# ifdef PTR_DEMANGLE + PTR_DEMANGLE3 (r24, r24, r25) +# endif + CHECK_SP (r24) + mr r1,r24 +# endif #else lwz r1,(JB_GPR1*4)(r3) #endif @@ -135,17 +142,11 @@ L(no_vmx): lwz r20,((JB_GPRS+6)*4)(r3) lfd fp20,((JB_FPRS+6*2)*4)(r3) #ifdef PTR_DEMANGLE -# ifdef CHECK_SP - PTR_DEMANGLE3 (r24, r24, r25) -# else +# ifndef CHECK_SP PTR_DEMANGLE3 (r1, r24, r25) # endif PTR_DEMANGLE2 (r0, r25) #endif -#ifdef CHECK_SP - CHECK_SP (r24) - mr r1,r24 -#endif mtlr r0 lwz r21,((JB_GPRS+7)*4)(r3) lfd fp21,((JB_FPRS+7*2)*4)(r3) diff --git a/sysdeps/powerpc/powerpc32/____longjmp_chk.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/____longjmp_chk.S index 510ce5250d..4cb968505d 100644 --- a/sysdeps/powerpc/powerpc32/____longjmp_chk.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/____longjmp_chk.S @@ -19,7 +19,8 @@ #include <sysdep.h> #include <rtld-global-offsets.h> - .section .rodata.str1.1,"aMS",@progbits,1 + .section .rodata.str1.4,"aMS",@progbits,1 + .align 2 .LC0: .string "longjmp causes uninitialized stack frame" .text @@ -49,8 +50,36 @@ #define CHECK_SP(reg) \ cmplw reg, r1; \ bge+ .Lok; \ + mflr r0; \ + stwu r1,-32(r1); \ + cfi_remember_state; \ + cfi_adjust_cfa_offset (32); \ + stw r0,36(r1); \ + cfi_offset (lr, 4); \ + mr r31,r3; \ + mr r30,r4; \ + li r3,0; \ + addi r4,r1,8; \ + li r0,__NR_sigaltstack; \ + sc; \ + /* Without working sigaltstack we cannot perform the test. */ \ + bso .Lok2; \ + lwz r0,12(r1); \ + andi. r3,r0,1; \ + beq .Lfail; \ + lwz r0,16(r1); \ + lwz r3,8(r1); \ + add r3,r3,r0; \ + sub r3,r3,reg; \ + cmplw r3,r0; \ + bge+ .Lok2; \ +.Lfail: \ LOAD_ARG; \ bl HIDDEN_JUMPTARGET (__fortify_fail); \ +.Lok2: \ + mr r3,r31; \ + mr r4,r30; \ + cfi_restore_state; \ .Lok: #include <__longjmp-common.S> diff --git a/sysdeps/powerpc/powerpc64/____longjmp_chk.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/____longjmp_chk.S index 56549021aa..936ace5f69 100644 --- a/sysdeps/powerpc/powerpc64/____longjmp_chk.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/____longjmp_chk.S @@ -19,7 +19,8 @@ #include <sysdep.h> #include <rtld-global-offsets.h> - .section .rodata.str1.1,"aMS",@progbits,1 + .section .rodata.str1.8,"aMS",@progbits,1 + .align 3 .LC0: .string "longjmp causes uninitialized stack frame" .section .toc,"aw" @@ -32,8 +33,37 @@ #define CHECK_SP(reg) \ cmpld reg, r1; \ bge+ .Lok; \ + mflr r0; \ + std r0,16(r1); \ + mr r31,r3; \ + mr r30,r4; \ + stdu r1,-144(r1); \ + cfi_remember_state; \ + cfi_adjust_cfa_offset (144); \ + cfi_offset (lr, 16); \ + li r3,0; \ + addi r4,r1,112; \ + li r0,__NR_sigaltstack; \ + sc; \ + /* Without working sigaltstack we cannot perform the test. */ \ + bso .Lok2; \ + lwz r0,112+8(r1); \ + andi. r4,r0,1; \ + beq .Lfail; \ + ld r0,112+16(r1); \ + ld r4,112(r1); \ + add r4,r4,r0; \ + sub r3,r3,reg; \ + cmpld r3,r0; \ + bge+ .Lok2; \ +.Lfail: \ ld r3,.LC1@toc(2); \ bl HIDDEN_JUMPTARGET (__fortify_fail); \ + nop; \ +.Lok2: \ + mr r3,r31; \ + mr r4,r30; \ + cfi_restore_state; \ .Lok: #include <__longjmp-common.S> |