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author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-03-02 16:14:32 +0000 |
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committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-03-02 16:14:32 +0000 |
commit | 6a288deabc6e718add4552111a6fd2434c723431 (patch) | |
tree | 169089af3f1302088087d7be346943bfcdec3e85 /addr2line.c | |
parent | 613861d6c5dcf98f9b56112826adbf9f02d4f93a (diff) | |
download | ruby-6a288deabc6e718add4552111a6fd2434c723431.tar.gz |
* addr2line.c (uleb128): cast the value to unsigned long.
* addr2line.c (fill_lines): print error when lseek fails.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31010 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'addr2line.c')
-rw-r--r-- | addr2line.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/addr2line.c b/addr2line.c index 6726f9fcf9..68e38cdb7b 100644 --- a/addr2line.c +++ b/addr2line.c @@ -85,7 +85,7 @@ uleb128(char **p) { for (;;) { unsigned char b = *(unsigned char *)(*p)++; if (b < 0x80) { - r += b << s; + r += (unsigned long)b << s; break; } r += (b & 0x7f) << s; @@ -442,6 +442,12 @@ fill_lines(int num_traces, void **traces, char **syms, int check_debuglink, return; } filesize = lseek(fd, 0, SEEK_END); + if (filesize < 0) { + int e = errno; + close(fd); + fprintf(stderr, "lseek: %s\n", strerror(e)); + return; + } lseek(fd, 0, SEEK_SET); /* async-signal unsafe */ file = (char *)mmap(NULL, filesize, PROT_READ, MAP_SHARED, fd, 0); |