Re: [Qemu-devel] [PATCH 1/4] switch RAM_ADDR_FMT format specifier to print decimal

["Michael S. Tsirkin" <mst@redhat.com>]

On Wed, Jun 25, 2014 at 01:42:20PM +0200, Igor Mammedov wrote:
> ... and add RAM_ADDR_FMTX for hex format. In addition fix
> places to print sizes/lengths as decimal and addresses as hex.

ugh.
maybe both - though I really think most people will find
it easier to parse he hex variant.

> Also drop "%" from RAM_ADDR_FMT macro and use it like other
> PRIfoo format placeholders specifying "%" explicitly.
> 
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
>  arch_init.c               |   14 +++++++-------
>  exec.c                    |    4 ++--
>  hw/i386/pc.c              |    4 ++--
>  hw/ppc/ppc405_boards.c    |    2 +-
>  include/exec/cpu-common.h |    6 ++++--
>  numa.c                    |    2 +-
>  vl.c                      |    6 +++---
>  xen-hvm.c                 |   11 +++++------
>  8 files changed, 25 insertions(+), 24 deletions(-)
> 
> diff --git a/arch_init.c b/arch_init.c
> index 8ddaf35..7562325 100644
> --- a/arch_init.c
> +++ b/arch_init.c
> @@ -1072,8 +1072,8 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
>                  QTAILQ_FOREACH(block, &ram_list.blocks, next) {
>                      if (!strncmp(id, block->idstr, sizeof(id))) {
>                          if (block->length != length) {
> -                            error_report("Length mismatch: %s: " RAM_ADDR_FMT
> -                                         " in != " RAM_ADDR_FMT, id, length,
> +                            error_report("Length mismatch: %s: %" RAM_ADDR_FMT
> +                                         " in != %" RAM_ADDR_FMT, id, length,
>                                           block->length);

Not sure I like this.
length values are often powers of two.
Parsing them in decimal is hard.

>                              ret =  -EINVAL;
>                          }
> @@ -1098,7 +1098,7 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
>  
>              host = host_from_stream_offset(f, addr, flags);
>              if (!host) {
> -                error_report("Illegal RAM offset " RAM_ADDR_FMT, addr);
> +                error_report("Illegal RAM offset %" RAM_ADDR_FMTX, addr);
>                  ret = -EINVAL;
>                  break;
>              }
> @@ -1110,7 +1110,7 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
>  
>              host = host_from_stream_offset(f, addr, flags);
>              if (!host) {
> -                error_report("Illegal RAM offset " RAM_ADDR_FMT, addr);
> +                error_report("Illegal RAM offset %" RAM_ADDR_FMTX, addr);
>                  ret = -EINVAL;
>                  break;
>              }
> @@ -1119,14 +1119,14 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
>          } else if (flags & RAM_SAVE_FLAG_XBZRLE) {
>              void *host = host_from_stream_offset(f, addr, flags);
>              if (!host) {
> -                error_report("Illegal RAM offset " RAM_ADDR_FMT, addr);
> +                error_report("Illegal RAM offset %" RAM_ADDR_FMTX, addr);
>                  ret = -EINVAL;
>                  break;
>              }
>  
>              if (load_xbzrle(f, addr, host) < 0) {
> -                error_report("Failed to decompress XBZRLE page at "
> -                             RAM_ADDR_FMT, addr);
> +                error_report("Failed to decompress XBZRLE page at %"
> +                             RAM_ADDR_FMTX, addr);
>                  ret = -EINVAL;
>                  break;
>              }
> diff --git a/exec.c b/exec.c
> index c849405..f9ae8a4 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -1435,8 +1435,8 @@ void qemu_ram_remap(ram_addr_t addr, ram_addr_t length)
>                                  flags, -1, 0);
>                  }
>                  if (area != vaddr) {
> -                    fprintf(stderr, "Could not remap addr: "
> -                            RAM_ADDR_FMT "@" RAM_ADDR_FMT "\n",
> +                    fprintf(stderr, "Could not remap addr: %"
> +                            RAM_ADDR_FMTX "@%" RAM_ADDR_FMTX "\n",
>                              length, addr);
>                      exit(1);
>                  }
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 2cf22b1..a6e7ef3 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -1257,8 +1257,8 @@ FWCfgState *pc_memory_init(MachineState *machine,
>  
>          if ((pcms->hotplug_memory_base + hotplug_mem_size) <
>              hotplug_mem_size) {
> -            error_report("unsupported amount of maximum memory: " RAM_ADDR_FMT,
> -                         machine->maxram_size);
> +            error_report("unsupported amount of maximum memory: %"
> +                         RAM_ADDR_FMT, machine->maxram_size);
>              exit(EXIT_FAILURE);
>          }
>  
> diff --git a/hw/ppc/ppc405_boards.c b/hw/ppc/ppc405_boards.c
> index 98ad2d7..2b1b4fe 100644
> --- a/hw/ppc/ppc405_boards.c
> +++ b/hw/ppc/ppc405_boards.c
> @@ -358,7 +358,7 @@ static void ref405ep_init(MachineState *machine)
>          bdloc = 0;
>      }
>  #ifdef DEBUG_BOARD_INIT
> -    printf("bdloc " RAM_ADDR_FMT "\n", bdloc);
> +    printf("bdloc %" RAM_ADDR_FMTX "\n", bdloc);
>      printf("%s: Done\n", __func__);
>  #endif
>  }
> diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
> index e3ec4c8..6899d0c 100644
> --- a/include/exec/cpu-common.h
> +++ b/include/exec/cpu-common.h
> @@ -38,11 +38,13 @@ enum device_endian {
>  #if defined(CONFIG_XEN_BACKEND)
>  typedef uint64_t ram_addr_t;
>  #  define RAM_ADDR_MAX UINT64_MAX
> -#  define RAM_ADDR_FMT "%" PRIx64
> +#  define RAM_ADDR_FMTX PRIx64
> +#  define RAM_ADDR_FMT PRIu64
>  #else
>  typedef uintptr_t ram_addr_t;
>  #  define RAM_ADDR_MAX UINTPTR_MAX
> -#  define RAM_ADDR_FMT "%" PRIxPTR
> +#  define RAM_ADDR_FMTX PRIxPTR
> +#  define RAM_ADDR_FMT PRIuPTR
>  #endif
>  
>  extern ram_addr_t ram_size;
> diff --git a/numa.c b/numa.c
> index e471afe..d9f2655 100644
> --- a/numa.c
> +++ b/numa.c
> @@ -189,7 +189,7 @@ void set_numa_nodes(void)
>          }
>          if (numa_total != ram_size) {
>              error_report("total memory for NUMA nodes (%" PRIu64 ")"
> -                         " should equal RAM size (" RAM_ADDR_FMT ")",
> +                         " should equal RAM size (%" RAM_ADDR_FMT ")",
>                           numa_total, ram_size);
>              exit(1);
>          }
> diff --git a/vl.c b/vl.c
> index a1686ef..6b09220 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -3319,7 +3319,7 @@ int main(int argc, char **argv, char **envp)
>                      sz = qemu_opt_get_size(opts, "maxmem", 0);
>                      if (sz < ram_size) {
>                          fprintf(stderr, "qemu: invalid -m option value: maxmem "
> -                                "(%" PRIu64 ") <= initial memory ("
> +                                "(%" PRIu64 ") <= initial memory (%"
>                                  RAM_ADDR_FMT ")\n", sz, ram_size);
>                          exit(EXIT_FAILURE);
>                      }
> @@ -3327,7 +3327,7 @@ int main(int argc, char **argv, char **envp)
>                      slots = qemu_opt_get_number(opts, "slots", 0);
>                      if ((sz > ram_size) && !slots) {
>                          fprintf(stderr, "qemu: invalid -m option value: maxmem "
> -                                "(%" PRIu64 ") more than initial memory ("
> +                                "(%" PRIu64 ") more than initial memory (%"
>                                  RAM_ADDR_FMT ") but no hotplug slots where "
>                                  "specified\n", sz, ram_size);
>                          exit(EXIT_FAILURE);
> @@ -3336,7 +3336,7 @@ int main(int argc, char **argv, char **envp)
>                      if ((sz <= ram_size) && slots) {
>                          fprintf(stderr, "qemu: invalid -m option value:  %"
>                                  PRIu64 " hotplug slots where specified but "
> -                                "maxmem (%" PRIu64 ") <= initial memory ("
> +                                "maxmem (%" PRIu64 ") <= initial memory (%"
>                                  RAM_ADDR_FMT ")\n", slots, sz, ram_size);
>                          exit(EXIT_FAILURE);
>                      }
> diff --git a/xen-hvm.c b/xen-hvm.c
> index bafdf12..e7b4b76 100644
> --- a/xen-hvm.c
> +++ b/xen-hvm.c
> @@ -221,8 +221,8 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
>  
>      if (runstate_check(RUN_STATE_INMIGRATE)) {
>          /* RAM already populated in Xen */
> -        fprintf(stderr, "%s: do not alloc "RAM_ADDR_FMT
> -                " bytes of ram at "RAM_ADDR_FMT" when runstate is INMIGRATE\n",
> +        fprintf(stderr, "%s: do not alloc %"RAM_ADDR_FMT" bytes"
> +                " of ram at %"RAM_ADDR_FMTX" when runstate is INMIGRATE\n",
>                  __func__, size, ram_addr); 
>          return;
>      }
> @@ -241,7 +241,7 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
>      }
>  
>      if (xc_domain_populate_physmap_exact(xen_xc, xen_domid, nr_pfn, 0, 0, pfn_list)) {
> -        hw_error("xen: failed to populate ram at " RAM_ADDR_FMT, ram_addr);
> +        hw_error("xen: failed to populate ram at %" RAM_ADDR_FMTX, ram_addr);
>      }
>  
>      g_free(pfn_list);
> @@ -1127,9 +1127,8 @@ void xen_modified_memory(ram_addr_t start, ram_addr_t length)
>              - start_pfn;
>          rc = xc_hvm_modified_memory(xen_xc, xen_domid, start_pfn, nb_pages);
>          if (rc) {
> -            fprintf(stderr,
> -                    "%s failed for "RAM_ADDR_FMT" ("RAM_ADDR_FMT"): %i, %s\n",
> -                    __func__, start, nb_pages, rc, strerror(-rc));
> +            fprintf(stderr, "%s failed for %"RAM_ADDR_FMTX" (%"RAM_ADDR_FMT"):"
> +                    " %i, %s\n", __func__, start, nb_pages, rc, strerror(-rc));
>          }
>      }
>  }
> -- 
> 1.7.1