Add contib/libs/breakpad to export

commit_hash:9d85255f8d9249f14105e4626bf4484805b8aed4

1 files changed, 96 insertions, 0 deletions

diff --git a/contrib/libs/breakpad/src/common/linux/linux_libc_support.h b/contrib/libs/breakpad/src/common/linux/linux_libc_support.h
new file mode 100644
index 0000000000..ec5a8d6b6b
--- /dev/null
+++ b/contrib/libs/breakpad/src/common/linux/linux_libc_support.h
@@ -0,0 +1,96 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This header provides replacements for libc functions that we need. We if
+// call the libc functions directly we risk crashing in the dynamic linker as
+// it tries to resolve uncached PLT entries.
+
+#ifndef CLIENT_LINUX_LINUX_LIBC_SUPPORT_H_
+#define CLIENT_LINUX_LINUX_LIBC_SUPPORT_H_
+
+#include <stdint.h>
+#include <limits.h>
+#include <sys/types.h>
+
+extern "C" {
+
+extern size_t my_strlen(const char* s);
+
+extern int my_strcmp(const char* a, const char* b);
+
+extern int my_strncmp(const char* a, const char* b, size_t len);
+
+// Parse a non-negative integer.
+//   result: (output) the resulting non-negative integer
+//   s: a NUL terminated string
+// Return true iff successful.
+extern bool my_strtoui(int* result, const char* s);
+
+// Return the length of the given unsigned integer when expressed in base 10.
+extern unsigned my_uint_len(uintmax_t i);
+
+// Convert an unsigned integer to a string
+//   output: (output) the resulting string is written here. This buffer must be
+//     large enough to hold the resulting string. Call |my_uint_len| to get the
+//     required length.
+//   i: the unsigned integer to serialise.
+//   i_len: the length of the integer in base 10 (see |my_uint_len|).
+extern void my_uitos(char* output, uintmax_t i, unsigned i_len);
+
+extern const char* my_strchr(const char* haystack, char needle);
+
+extern const char* my_strrchr(const char* haystack, char needle);
+
+// Read a hex value
+//   result: (output) the resulting value
+//   s: a string
+// Returns a pointer to the first invalid charactor.
+extern const char* my_read_hex_ptr(uintptr_t* result, const char* s);
+
+extern const char* my_read_decimal_ptr(uintptr_t* result, const char* s);
+
+extern void my_memset(void* ip, char c, size_t len);
+
+extern void* my_memchr(const void* src, int c, size_t len);
+
+// The following are considered safe to use in a compromised environment.
+// Besides, this gives the compiler an opportunity to optimize their calls.
+#define my_memcpy  memcpy
+#define my_memmove memmove
+#define my_memcmp  memcmp
+
+extern size_t my_strlcpy(char* s1, const char* s2, size_t len);
+
+extern size_t my_strlcat(char* s1, const char* s2, size_t len);
+
+extern int my_isspace(int ch);
+
+}  // extern "C"
+
+#endif  // CLIENT_LINUX_LINUX_LIBC_SUPPORT_H_