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thumb-eabi-linux.shlib, and use it (for smaller size) instead of ARM.

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[Consider compress-time option to choose ARM vs thumb?]
This commit is contained in:
John Reiser
2009-10-26 09:05:12 -07:00
parent 4ca8357af4
commit eeae73296e
6 changed files with 1802 additions and 5 deletions
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src/p_lx_elf.cpp
+7 -5
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@@ -265,6 +265,7 @@ void PackLinuxElf32::pack3(OutputFile *fo, Filter &ft)
}
if (off_init) { // change DT_INIT.d_val
fo->seek(off_init, SEEK_SET);
va_init |= (Elf32_Ehdr::EM_ARM==e_machine);
unsigned word; set_te32(&word, va_init);
fo->rewrite(&word, sizeof(word));
fo->seek(0, SEEK_END);
@@ -922,7 +923,7 @@ static const
static const
#include "stub/armel-eabi-linux.elf-fold.h"
static const
#include "stub/armel-eabi-linux.shlib-init.h"
#include "stub/thumb-eabi-linux.shlib-init.h"
static const
#include "stub/arm-linux.elf-entry.h"
@@ -953,7 +954,7 @@ PackLinuxElf32armLe::buildLoader(Filter const *ft)
if (0!=xct_off) { // shared library
buildLinuxLoader(
stub_armel_eabi_linux_shlib_init, sizeof(stub_armel_eabi_linux_shlib_init),
stub_thumb_eabi_linux_shlib_init, sizeof(stub_thumb_eabi_linux_shlib_init),
NULL, 0, ft );
return;
}
@@ -1673,9 +1674,6 @@ void PackLinuxElf32::pack1(OutputFile */*fo*/, Filter &/*ft*/)
while (x>>=1) {
++lg2_page;
}
if (hatch_off < 16 && Elf32_Ehdr::EM_ARM==e_machine) {
hatch_off = get_te32(&phdr->p_offset) + get_te32(&phdr->p_memsz);
}
}
}
page_size = 1u<<lg2_page;
@@ -2278,6 +2276,10 @@ void PackLinuxElf32::pack4(OutputFile *fo, Filter &ft)
ehdri.e_ident[13] = 0x80;
ehdri.e_ident[14] = 0x61; // POPA
ehdri.e_ident[15] = 0xc3; // RET
if (Elf32_Ehdr::EM_ARM==e_machine) {
set_te16(&ehdri.e_ident[12], 0xdf00); // swi 0
set_te16(&ehdri.e_ident[14], 0xbdff); // pop {all regs}
}
fo->rewrite(&ehdri, sizeof(ehdri));
fo->rewrite(phdri, e_phnum * sizeof(*phdri));
}