From 3b631e3720979156e83af0dac8b77f479384c2af Mon Sep 17 00:00:00 2001 From: Yao Qi Date: Sat, 4 Jan 2014 15:48:21 +0800 Subject: [PATCH] Cast to uintptr_t when calling ptrace32 on aix When I verify my changes to target.h doesn't break build on aix, I get the following build error on a clean GDB checkout. ../../binutils-gdb/gdb/aix-thread.c: In function 'pdc_read_regs': ../../binutils-gdb/gdb/aix-thread.c:366:4: error: passing argument 3 of 'ptrace32' makes integer from pointer without a cast [-Werror] if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) ^ ../../binutils-gdb/gdb/aix-thread.c:263:1: note: expected 'long long int' but argument is of type 'uint32_t *' ptrace32 (int req, int id, addr_ptr addr, int data, int *buf) ^ ../../binutils-gdb/gdb/aix-thread.c:375:42: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] if (!ptrace32 (PTT_READ_FPRS, tid, (addr_ptr) fprs, 0, NULL)) ^ ../../binutils-gdb/gdb/aix-thread.c:392:39: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] if (!ptrace32 (PTT_READ_SPRS, tid, (addr_ptr) &sprs32, 0, NULL)) GCC uses -maix32 in default, so the 'long long' is 64 bit and address is 32 bit. Such warnings should go away if -maix64 is used. In this patch, I cast the parameter to uintptr_t first, and then cast to addr_ptr. gdb: 2014-01-07 Yao Qi Joel Brobecker * aix-thread.c (pdc_read_regs): Cast parameter to uintptr_t. (pdc_write_regs): Likewise. (fetch_regs_kernel_thread): Likewise. (store_regs_kernel_thread): Likewise. --- gdb/aix-thread.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/gdb/aix-thread.c b/gdb/aix-thread.c index 79adef0..20c7872 100644 --- a/gdb/aix-thread.c +++ b/gdb/aix-thread.c @@ -363,7 +363,7 @@ pdc_read_regs (pthdb_user_t user, } else { - if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) + if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) memset (gprs32, 0, sizeof (gprs32)); memcpy (context->gpr, gprs32, sizeof(gprs32)); } @@ -372,7 +372,7 @@ pdc_read_regs (pthdb_user_t user, /* Floating-point registers. */ if (flags & PTHDB_FLAG_FPRS) { - if (!ptrace32 (PTT_READ_FPRS, tid, (addr_ptr) fprs, 0, NULL)) + if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) memset (fprs, 0, sizeof (fprs)); memcpy (context->fpr, fprs, sizeof(fprs)); } @@ -389,7 +389,7 @@ pdc_read_regs (pthdb_user_t user, } else { - if (!ptrace32 (PTT_READ_SPRS, tid, (addr_ptr) &sprs32, 0, NULL)) + if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) memset (&sprs32, 0, sizeof (sprs32)); memcpy (&context->msr, &sprs32, sizeof(sprs32)); } @@ -424,13 +424,13 @@ pdc_write_regs (pthdb_user_t user, ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) context->gpr, 0, NULL); else - ptrace32 (PTT_WRITE_GPRS, tid, (addr_ptr) context->gpr, 0, NULL); + ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) context->gpr, 0, NULL); } /* Floating-point registers. */ if (flags & PTHDB_FLAG_FPRS) { - ptrace32 (PTT_WRITE_FPRS, tid, (addr_ptr) context->fpr, 0, NULL); + ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) context->fpr, 0, NULL); } /* Special-purpose registers. */ @@ -443,7 +443,7 @@ pdc_write_regs (pthdb_user_t user, } else { - ptrace32 (PTT_WRITE_SPRS, tid, (addr_ptr) &context->msr, 0, NULL); + ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &context->msr, 0, NULL); } } return 0; @@ -1250,7 +1250,7 @@ fetch_regs_kernel_thread (struct regcache *regcache, int regno, } else { - if (!ptrace32 (PTT_READ_GPRS, tid, (addr_ptr) gprs32, 0, NULL)) + if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) memset (gprs32, 0, sizeof (gprs32)); for (i = 0; i < ppc_num_gprs; i++) supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); @@ -1264,7 +1264,7 @@ fetch_regs_kernel_thread (struct regcache *regcache, int regno, || (regno >= tdep->ppc_fp0_regnum && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) { - if (!ptrace32 (PTT_READ_FPRS, tid, (addr_ptr) fprs, 0, NULL)) + if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) memset (fprs, 0, sizeof (fprs)); supply_fprs (regcache, fprs); } @@ -1286,7 +1286,7 @@ fetch_regs_kernel_thread (struct regcache *regcache, int regno, { struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - if (!ptrace32 (PTT_READ_SPRS, tid, (addr_ptr) &sprs32, 0, NULL)) + if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) memset (&sprs32, 0, sizeof (sprs32)); supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, @@ -1581,9 +1581,9 @@ store_regs_kernel_thread (const struct regcache *regcache, int regno, else { /* Pre-fetch: some regs may not be in the cache. */ - ptrace32 (PTT_READ_GPRS, tid, (addr_ptr) gprs32, 0, NULL); + ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL); fill_gprs32 (regcache, gprs32); - ptrace32 (PTT_WRITE_GPRS, tid, (addr_ptr) gprs32, 0, NULL); + ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) gprs32, 0, NULL); } } @@ -1595,9 +1595,9 @@ store_regs_kernel_thread (const struct regcache *regcache, int regno, && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) { /* Pre-fetch: some regs may not be in the cache. */ - ptrace32 (PTT_READ_FPRS, tid, (addr_ptr) fprs, 0, NULL); + ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL); fill_fprs (regcache, fprs); - ptrace32 (PTT_WRITE_FPRS, tid, (addr_ptr) fprs, 0, NULL); + ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) fprs, 0, NULL); } /* Special-purpose registers. */ @@ -1629,7 +1629,7 @@ store_regs_kernel_thread (const struct regcache *regcache, int regno, gdb_assert (sizeof (sprs32.pt_iar) == 4); /* Pre-fetch: some registers won't be in the cache. */ - ptrace32 (PTT_READ_SPRS, tid, (addr_ptr) &sprs32, 0, NULL); + ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, &tmp_xer, &tmp_fpscr); @@ -1648,7 +1648,7 @@ store_regs_kernel_thread (const struct regcache *regcache, int regno, regcache_raw_collect (regcache, tdep->ppc_mq_regnum, &sprs32.pt_mq); - ptrace32 (PTT_WRITE_SPRS, tid, (addr_ptr) &sprs32, 0, NULL); + ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); } } } -- 1.8.3.2