These should have been size_t all along, matching the public
libdwfl_stacktrace dwflst_sample_getframes interface. Fix.

* backends/aarch64_initreg_sample.c (aarch64_sample_sp_pc): Fixup
  argument type for n_regs_mapping.
* backends/i386_initreg_sample.c (i386_sample_sp_pc): Fixup argument
  type for n_regs_mapping.
* backends/libebl_PERF_FLAGS.h (generic_sample_sp_pc): Fixup argument
  type for n_regs_mapping, adjust loop index var accordingly.
* backends/x86_64_initreg_sample.c (x86_64_sample_sp_pc): Fixup
  argument type for n_regs_mapping.
* libebl/ebl-hooks.h (sample_sp_pc): Fixup argument type for
  n_regs_mapping.
---
 backends/aarch64_initreg_sample.c | 2 +-
 backends/i386_initreg_sample.c    | 2 +-
 backends/libebl_PERF_FLAGS.h      | 6 +++---
 backends/x86_64_initreg_sample.c  | 2 +-
 libebl/ebl-hooks.h                | 2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/backends/aarch64_initreg_sample.c 
b/backends/aarch64_initreg_sample.c
index 1ea17324..b6820cde 100644
--- a/backends/aarch64_initreg_sample.c
+++ b/backends/aarch64_initreg_sample.c
@@ -41,7 +41,7 @@
 
 bool
 aarch64_sample_sp_pc (const Dwarf_Word *regs, uint32_t n_regs,
-                     const int *regs_mapping, uint32_t n_regs_mapping,
+                     const int *regs_mapping, size_t n_regs_mapping,
                      Dwarf_Word *sp, Dwarf_Word *pc)
 {
   return generic_sample_sp_pc (regs, n_regs, regs_mapping, n_regs_mapping,
diff --git a/backends/i386_initreg_sample.c b/backends/i386_initreg_sample.c
index ae3ab11e..1e194146 100644
--- a/backends/i386_initreg_sample.c
+++ b/backends/i386_initreg_sample.c
@@ -47,7 +47,7 @@
 
 bool
 i386_sample_sp_pc (const Dwarf_Word *regs, uint32_t n_regs,
-                  const int *regs_mapping, uint32_t n_regs_mapping,
+                  const int *regs_mapping, size_t n_regs_mapping,
                   Dwarf_Word *sp, Dwarf_Word *pc)
 {
   /* XXX for dwarf_regs indices, compare i386_initreg.c */
diff --git a/backends/libebl_PERF_FLAGS.h b/backends/libebl_PERF_FLAGS.h
index 54eb38a9..986e3f16 100644
--- a/backends/libebl_PERF_FLAGS.h
+++ b/backends/libebl_PERF_FLAGS.h
@@ -75,7 +75,7 @@
 
 static inline bool
 generic_sample_sp_pc (const Dwarf_Word *regs, uint32_t n_regs,
-                     const int *regs_mapping, uint32_t n_regs_mapping,
+                     const int *regs_mapping, size_t n_regs_mapping,
                      Dwarf_Word *sp, uint sp_index /* into dwarf_regs */,
                      Dwarf_Word *pc, uint pc_index /* into dwarf_regs */)
 {
@@ -84,8 +84,8 @@ generic_sample_sp_pc (const Dwarf_Word *regs, uint32_t n_regs,
   /* TODO: Register locations could be cached and rechecked on a
      fastpath without needing to loop, though the overhead reduction
      is minimal.  */
-  int j, need_sp = (sp != NULL), need_pc = (pc != NULL);
-  for (j = 0; (need_sp || need_pc) && n_regs_mapping > (uint32_t)j; j++)
+  int need_sp = (sp != NULL), need_pc = (pc != NULL);
+  for (size_t j = 0; (need_sp || need_pc) && n_regs_mapping > j; j++)
     {
       if (n_regs < (uint32_t)j) break;
       if (need_sp && regs_mapping[j] == (int)sp_index)
diff --git a/backends/x86_64_initreg_sample.c b/backends/x86_64_initreg_sample.c
index 83966ff9..48a365f5 100644
--- a/backends/x86_64_initreg_sample.c
+++ b/backends/x86_64_initreg_sample.c
@@ -47,7 +47,7 @@
 
 bool
 x86_64_sample_sp_pc (const Dwarf_Word *regs, uint32_t n_regs,
-                    const int *regs_mapping, uint32_t n_regs_mapping,
+                    const int *regs_mapping, size_t n_regs_mapping,
                     Dwarf_Word *sp, Dwarf_Word *pc)
 {
   /* XXX for dwarf_regs indices, compare x86_64_initreg.c */
diff --git a/libebl/ebl-hooks.h b/libebl/ebl-hooks.h
index 29ce9649..054284d8 100644
--- a/libebl/ebl-hooks.h
+++ b/libebl/ebl-hooks.h
@@ -172,7 +172,7 @@ bool EBLHOOK(set_initial_registers_sample) (const 
Dwarf_Word *regs,
 /* Extract the stack address and instruction pointer from a register sample.  
*/
 bool EBLHOOK(sample_sp_pc) (const Dwarf_Word *regs, uint32_t n_regs,
                            const int *regs_mapping,
-                           uint32_t n_regs_mapping,
+                           size_t n_regs_mapping,
                            Dwarf_Word *sp, Dwarf_Word *pc);
 
 /* Translate from linux perf_events PERF_REGS_MASK and ABI to a generic
-- 
2.53.0

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