https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120513
--- Comment #24 from Greg Chandler <chandleg at wizardsworks dot org> ---
I took another look at the strack trace, comparing it to the cross-compiler on
the build system.
Build system:
newfstatat(AT_FDCWD,
"/opt/tools/bin/../lib/gcc/alpha-linux-gnu/14.2.0/include",
{st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
newfstatat(AT_FDCWD,
"/opt/tools/bin/../lib/gcc/alpha-linux-gnu/14.2.0/include-fixed",
{st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
newfstatat(AT_FDCWD,
"/opt/tools/bin/../lib/gcc/alpha-linux-gnu/14.2.0/../../../../alpha-linux-gnu/include",
{st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
newfstatat(AT_FDCWD,
"/opt/tools/bin/../lib/gcc/../../lib/gcc/alpha-linux-gnu/14.2.0/include",
{st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
newfstatat(AT_FDCWD, "/opt/usr/local/include", {st_mode=S_IFDIR|0755,
st_size=4096, ...}, 0) = 0
newfstatat(AT_FDCWD,
"/opt/tools/bin/../lib/gcc/../../lib/gcc/alpha-linux-gnu/14.2.0/include-fixed",
{st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
newfstatat(AT_FDCWD,
"/opt/tools/bin/../lib/gcc/../../lib/gcc/alpha-linux-gnu/14.2.0/../../../../alpha-linux-gnu/include",
{st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
newfstatat(AT_FDCWD, "/opt/usr/include", {st_mode=S_IFDIR|0755, st_size=12288,
...}, 0) = 0
newfstatat(AT_FDCWD, "1.c.gch", 0x7ffcf0cf4b70, 0) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, "1.c", O_RDONLY|O_NOCTTY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=60, ...}) = 0
read(3, "#include <stdio.h>\n#include <std"..., 60) = 60
close(3) = 0
Target system:
clock_gettime(CLOCK_REALTIME, {tv_sec=1749270316, tv_nsec=590870341}) = 0
access("/usr/lib/gcc/alpha-linux-gnu/14.2.0/", X_OK) = 0
fstatat64(AT_FDCWD, "/usr/lib/gcc/alpha-linux-gnu/14.2.0/include",
{st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
fstatat64(AT_FDCWD, "/usr/local/include", {st_mode=S_IFDIR|0755, st_size=4096,
...}, 0) = 0
fstatat64(AT_FDCWD, "/usr/lib/gcc/alpha-linux-gnu/14.2.0/include-fixed",
{st_mode=S_IFDIR|0755, st_size=4096, ...}, 0) = 0
fstatat64(AT_FDCWD,
"/usr/lib/gcc/alpha-linux-gnu/14.2.0/../../../../alpha-linux-gnu/include",
0x11fa990c0, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/usr/include", {st_mode=S_IFDIR|0755, st_size=12288, ...},
0) = 0
fstat64(0, {st_mode=S_IFCHR|0620, st_rdev=makedev(0x4, 0x40), ...}) = 0
read(0,
The hang is now on the read, not a wait like it was before. Comparing the two
this is the actual read of the c input file. I guess that's at least a
starting place.
